示例#1
0
int
CA_passive_authentication(const EAC_CTX *ctx, PKCS7 *ef_cardsecurity)
{
    X509 *ds_cert;
    X509_STORE *store;
    STACK_OF(X509) *ds_certs = NULL;
    unsigned long issuer_name_hash;
    int ret = 0;

    check(ef_cardsecurity && ctx && ctx->ca_ctx && ctx->ca_ctx->lookup_csca_cert, "Invalid arguments");

    /* Extract the DS certificates from the EF.CardSecurity */
    ds_certs = PKCS7_get0_signers(ef_cardsecurity, NULL, 0);
    check(ds_certs, "Failed to retrieve certificates from EF.CardSecurity");

    /* NOTE: The following code assumes that there is only one certificate in
     * PKCS7 structure. ds_cert is implicitly freed together with ds_certs. */
    ds_cert = sk_X509_pop(ds_certs);
    check(ds_cert, "Failed to retrieve DS certificate from EF.CardSecurity");

    /* Get the trust store with at least the csca certificate */
    issuer_name_hash = X509_issuer_name_hash(ds_cert);
    store = ctx->ca_ctx->lookup_csca_cert(issuer_name_hash);
    check (store, "Failed to retrieve CSCA truststore");

    /* Verify the signature and the certificate chain */
    ret = PKCS7_verify(ef_cardsecurity, ds_certs, store, NULL, NULL, 0);

err:
    if (ds_certs)
        sk_X509_free(ds_certs);

    return ret;
}
示例#2
0
// Verify the signed block, the first 32 bytes of the data must be the certificate hash to work.
int __fastcall util_verify(char* signature, int signlen, struct util_cert* cert, char** data)
{
	unsigned int size, r;
	BIO *out = NULL;
	PKCS7 *message = NULL;
	char* data2 = NULL;
	char hash[UTIL_HASHSIZE];
	STACK_OF(X509) *st = NULL;

	cert->x509 = NULL;
	cert->pkey = NULL;
	*data = NULL;
	message = d2i_PKCS7(NULL, (const unsigned char**)&signature, signlen);
	if (message == NULL) goto error;
	out = BIO_new(BIO_s_mem());

	// Lets rebuild the original message and check the size
	size = i2d_PKCS7(message, NULL);
	if (size < (unsigned int)signlen) goto error;

	// Check the PKCS7 signature, but not the certificate chain.
	r = PKCS7_verify(message, NULL, NULL, NULL, out, PKCS7_NOVERIFY);
	if (r == 0) goto error;

	// If data block contains less than 32 bytes, fail.
	size = BIO_get_mem_data(out, &data2);
	if (size <= UTIL_HASHSIZE) goto error;

	// Copy the data block
	*data = (char*)malloc(size + 1);
	if (*data == NULL) goto error;
	memcpy(*data, data2, size);
	(*data)[size] = 0;

	// Get the certificate signer
	st = PKCS7_get0_signers(message, NULL, PKCS7_NOVERIFY);
	cert->x509 = X509_dup(sk_X509_value(st, 0));
	sk_X509_free(st);

	// Get a full certificate hash of the signer
	r = UTIL_HASHSIZE;
	X509_digest(cert->x509, EVP_sha256(), (unsigned char*)hash, &r);

	// Check certificate hash with first 32 bytes of data.
	if (memcmp(hash, *data, UTIL_HASHSIZE) != 0) goto error;

	// Approved, cleanup and return.
	BIO_free(out);
	PKCS7_free(message);

	return size;

error:
	if (out != NULL) BIO_free(out);
	if (message != NULL) PKCS7_free(message);
	if (*data != NULL) free(*data);
	if (cert->x509 != NULL) { X509_free(cert->x509); cert->x509 = NULL; }

	return 0;
}
int GTPublicationsFile_verify(const GTPublicationsFile *publications_file,
		GTPubFileVerificationInfo **verification_info)
{
	int res = GT_UNKNOWN_ERROR;
	BIO *bio_in = NULL;
	int rc;

	if (publications_file == NULL || publications_file->signature == NULL) {
		res = GT_INVALID_ARGUMENT;
		goto cleanup;
	}

	/* Note that the cast to void * is needed in order to work around
	 * const-noncorrectness in the OpenSSL API --- this pointer is used
	 * only for reading. */
	bio_in = BIO_new_mem_buf((void *) publications_file->data,
			publications_file->signature_block_begin);
	if (bio_in == NULL) {
		res = GT_OUT_OF_MEMORY;
		goto cleanup;
	}

	rc = PKCS7_verify(publications_file->signature, NULL, NULL, bio_in, NULL, PKCS7_NOVERIFY);
	if (rc < 0) {
		res = GT_CRYPTO_FAILURE;
		goto cleanup;
	}
	if (rc != 1) {
		res = GT_INVALID_SIGNATURE;
		goto cleanup;
	}

#ifdef _WIN32
	if (GT_truststore == NULL) {
		res = checkCertCryptoAPI(publications_file);
	} else {
		res = checkCertOpenSSL(publications_file);
	}
#else
	res = checkCertOpenSSL(publications_file);
#endif
	if (res != GT_OK) {
		goto cleanup;
	}

	res = createPubFileVerificationInfo(publications_file, verification_info);

cleanup:
	BIO_free(bio_in);

	return res;
}
示例#4
0
static LUA_FUNCTION(openssl_pkcs7_verify)
{
  int ret = 0;
  PKCS7 *p7 = CHECK_OBJECT(1, PKCS7, "openssl.pkcs7");
  STACK_OF(X509) *signers = lua_isnoneornil(L, 2) ? NULL : CHECK_OBJECT(2, STACK_OF(X509), "openssl.stack_of_x509");
  X509_STORE *store = lua_isnoneornil(L, 3) ? NULL : CHECK_OBJECT(3, X509_STORE, "openssl.x509_store");
  BIO* in = lua_isnoneornil(L, 4) ? NULL : load_bio_object(L, 4);
  long flags = luaL_optint(L, 5, 0);
  BIO* out = BIO_new(BIO_s_mem());

  if (!store)
  {
    luaL_error(L, "can't setup veirfy cainfo");
  }

  if (PKCS7_verify(p7, signers, store, in, out, flags) == 1)
  {
    STACK_OF(X509) *signers1 = PKCS7_get0_signers(p7, NULL, flags);
    if (out)
    {
      BUF_MEM *bio_buf;

      BIO_get_mem_ptr(out, &bio_buf);
      lua_pushlstring(L, bio_buf->data, bio_buf->length);
      ret = 1;
    }
    else
      ret = 0;

    if (signers1)
    {
      signers1 = openssl_sk_x509_dup(signers1);
      PUSH_OBJECT(signers1, "openssl.sk_x509");
      ret += 1;
    }
  }
  else
  {
    lua_pushnil(L);
    ret = 1;
  }

  if (out)
    BIO_free(out);
  if (in)
    BIO_free(in);
  return ret;
}
示例#5
0
static VALUE
ossl_pkcs7_verify(int argc, VALUE *argv, VALUE self)
{
    VALUE certs, store, indata, flags;
    STACK_OF(X509) *x509s;
    X509_STORE *x509st;
    int flg, ok, status = 0;
    BIO *in, *out;
    PKCS7 *p7;
    VALUE data;
    const char *msg;

    rb_scan_args(argc, argv, "22", &certs, &store, &indata, &flags);
    flg = NIL_P(flags) ? 0 : NUM2INT(flags);
    if(NIL_P(indata)) indata = ossl_pkcs7_get_data(self);
    in = NIL_P(indata) ? NULL : ossl_obj2bio(indata);
    if(NIL_P(certs)) x509s = NULL;
    else{
	x509s = ossl_protect_x509_ary2sk(certs, &status);
	if(status){
	    BIO_free(in);
	    /* rb_jump_tag(status); */
	    rb_notimplement();
	}
    }
    x509st = GetX509StorePtr(store);
    GetPKCS7(self, p7);
    if(!(out = BIO_new(BIO_s_mem()))){
	BIO_free(in);
	sk_X509_pop_free(x509s, X509_free);
	ossl_raise(ePKCS7Error, NULL);
    }
    ok = PKCS7_verify(p7, x509s, x509st, in, out, flg);
    BIO_free(in);
    if (ok < 0) ossl_raise(ePKCS7Error, NULL);
    msg = ERR_reason_error_string(ERR_get_error());
    ossl_pkcs7_set_err_string(self, msg ? rb_str_new2(msg) : Qnil);
    ERR_clear_error();
    data = ossl_membio2str(out);
    ossl_pkcs7_set_data(self, data);
    sk_X509_pop_free(x509s, X509_free);

    return (ok == 1) ? Qtrue : Qfalse;
}
示例#6
0
文件: afc.c 项目: keyidadi/asuwrt
/* 
功能:验证签名 
入口: 
char*certFile    证书(含匙) 
char* plainText  明文 
char* cipherText 签名 
出口: 
bool true  签名验证成功 
bool false 验证失败 
*/  
bool PKCS7_VerifySign(char*certFile,char* plainText,char* cipherText )  
{  
    /* Get X509 */  
    FILE* fp = fopen (certFile, "r");  
    if (fp == NULL)   
        return false;  
    X509* x509 = PEM_read_X509(fp, NULL, NULL, NULL);  
    fclose (fp);  
  
    if (x509 == NULL) {  
        ERR_print_errors_fp (stderr);  
        return false;  
    }  
  
    //BASE64解码  
    unsigned char *retBuf[1024*8];  
    int retBufLen = sizeof(retBuf);  
    memset(retBuf,0,sizeof(retBuf));  
    decodeBase64(cipherText,(void *)retBuf,&retBufLen);  
  
    //从签名中取PKCS7对象  
    BIO* vin = BIO_new_mem_buf(retBuf,retBufLen);  
    PKCS7 *p7 = d2i_PKCS7_bio(vin,NULL);  
  
  
    //取STACK_OF(X509)对象  
    STACK_OF(X509) *stack=sk_X509_new_null();//X509_STORE_new()  
    sk_X509_push(stack,x509);  
  
  
    //明码数据转为BIO  
    BIO *bio = BIO_new(BIO_s_mem());    
    BIO_puts(bio,plainText);  
  
    //验证签名  
    int err = PKCS7_verify(p7, stack, NULL,bio, NULL, PKCS7_NOVERIFY);  
  
    if (err != 1) {  
        ERR_print_errors_fp (stderr);  
        return false;  
    }  
  
    return true;  
}  
示例#7
0
static int attach_sig(struct image *image, const char *image_filename,
		const char *sig_filename)
{
	const uint8_t *tmp_buf;
	uint8_t *sigbuf;
	size_t size;
	PKCS7 *p7;
	int rc;

	rc = fileio_read_file(image, sig_filename, &sigbuf, &size);
	if (rc)
		goto out;

	image_add_signature(image, sigbuf, size);

	rc = -1;
	tmp_buf = sigbuf;
	p7 = d2i_PKCS7(NULL, &tmp_buf, size);
	if (!p7) {
		fprintf(stderr, "Unable to parse signature data in file: %s\n",
				sig_filename);
		ERR_print_errors_fp(stderr);
		goto out;
	}
	rc = PKCS7_verify(p7, NULL, NULL, NULL, NULL,
				PKCS7_BINARY | PKCS7_NOVERIFY | PKCS7_NOSIGS);
	if (!rc) {
		fprintf(stderr, "PKCS7 verification failed for file %s\n",
				sig_filename);
		ERR_print_errors_fp(stderr);
		goto out;
	}

	rc = image_write(image, image_filename);
	if (rc)
		fprintf(stderr, "Error writing %s: %s\n", image_filename,
				strerror(errno));

out:
	talloc_free(sigbuf);
	return rc;
}
示例#8
0
static LUA_FUNCTION(openssl_pkcs7_verify)
{
  int ret = 0;
  PKCS7 *p7 = CHECK_OBJECT(1, PKCS7, "openssl.pkcs7");
  STACK_OF(X509) *signers = lua_isnoneornil(L, 2) ? NULL : openssl_sk_x509_fromtable(L, 2);
  X509_STORE *store = lua_isnoneornil(L, 3) ? NULL : CHECK_OBJECT(3, X509_STORE, "openssl.x509_store");
  BIO* in = lua_isnoneornil(L, 4) ? NULL : load_bio_object(L, 4);
  long flags = luaL_optint(L, 5, 0);
  BIO* out = BIO_new(BIO_s_mem());
  if (!store)
    flags |= PKCS7_NOVERIFY;
  if (PKCS7_verify(p7, signers, store, in, out, flags) == 1)
  {
    if (out && (flags & PKCS7_DETACHED) == 0)
    {
      BUF_MEM *bio_buf;

      BIO_get_mem_ptr(out, &bio_buf);
      lua_pushlstring(L, bio_buf->data, bio_buf->length);
    }
    else
    {
      lua_pushboolean(L, 1);
    }
    ret += 1;
  }
  else
  {
    ret = openssl_pushresult(L, 0);
  }
  if (signers)
    sk_X509_pop_free(signers, X509_free);
  if (out)
    BIO_free(out);
  if (in)
    BIO_free(in);
  return ret;
}
示例#9
0
文件: smime.c 项目: dgervais/openssl
int smime_main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL, *indata = NULL;
    EVP_PKEY *key = NULL;
    PKCS7 *p7 = NULL;
    STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
    STACK_OF(X509) *encerts = NULL, *other = NULL;
    X509 *cert = NULL, *recip = NULL, *signer = NULL;
    X509_STORE *store = NULL;
    X509_VERIFY_PARAM *vpm = NULL;
    const EVP_CIPHER *cipher = NULL;
    const EVP_MD *sign_md = NULL;
    const char *CAfile = NULL, *CApath = NULL, *prog = NULL;
    char *certfile = NULL, *keyfile = NULL, *contfile = NULL, *inrand = NULL;
    char *infile = NULL, *outfile = NULL, *signerfile = NULL, *recipfile =
        NULL;
    char *passinarg = NULL, *passin = NULL, *to = NULL, *from =
        NULL, *subject = NULL;
    OPTION_CHOICE o;
    int noCApath = 0, noCAfile = 0;
    int flags = PKCS7_DETACHED, operation = 0, ret = 0, need_rand = 0, indef =
        0;
    int informat = FORMAT_SMIME, outformat = FORMAT_SMIME, keyform =
        FORMAT_PEM;
    int vpmtouched = 0, rv = 0;
    ENGINE *e = NULL;
    const char *mime_eol = "\n";

    if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
        return 1;

    prog = opt_init(argc, argv, smime_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
 opthelp:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            opt_help(smime_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
                goto opthelp;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUTFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat))
                goto opthelp;
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_ENCRYPT:
            operation = SMIME_ENCRYPT;
            break;
        case OPT_DECRYPT:
            operation = SMIME_DECRYPT;
            break;
        case OPT_SIGN:
            operation = SMIME_SIGN;
            break;
        case OPT_RESIGN:
            operation = SMIME_RESIGN;
            break;
        case OPT_VERIFY:
            operation = SMIME_VERIFY;
            break;
        case OPT_PK7OUT:
            operation = SMIME_PK7OUT;
            break;
        case OPT_TEXT:
            flags |= PKCS7_TEXT;
            break;
        case OPT_NOINTERN:
            flags |= PKCS7_NOINTERN;
            break;
        case OPT_NOVERIFY:
            flags |= PKCS7_NOVERIFY;
            break;
        case OPT_NOCHAIN:
            flags |= PKCS7_NOCHAIN;
            break;
        case OPT_NOCERTS:
            flags |= PKCS7_NOCERTS;
            break;
        case OPT_NOATTR:
            flags |= PKCS7_NOATTR;
            break;
        case OPT_NODETACH:
            flags &= ~PKCS7_DETACHED;
            break;
        case OPT_NOSMIMECAP:
            flags |= PKCS7_NOSMIMECAP;
            break;
        case OPT_BINARY:
            flags |= PKCS7_BINARY;
            break;
        case OPT_NOSIGS:
            flags |= PKCS7_NOSIGS;
            break;
        case OPT_STREAM:
        case OPT_INDEF:
            indef = 1;
            break;
        case OPT_NOINDEF:
            indef = 0;
            break;
        case OPT_CRLFEOL:
            flags |= PKCS7_CRLFEOL;
            mime_eol = "\r\n";
            break;
        case OPT_RAND:
            inrand = opt_arg();
            need_rand = 1;
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        case OPT_TO:
            to = opt_arg();
            break;
        case OPT_FROM:
            from = opt_arg();
            break;
        case OPT_SUBJECT:
            subject = opt_arg();
            break;
        case OPT_SIGNER:
            /* If previous -signer argument add signer to list */
            if (signerfile) {
                if (sksigners == NULL
                    && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
                    goto end;
                sk_OPENSSL_STRING_push(sksigners, signerfile);
                if (keyfile == NULL)
                    keyfile = signerfile;
                if (skkeys == NULL
                    && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
                    goto end;
                sk_OPENSSL_STRING_push(skkeys, keyfile);
                keyfile = NULL;
            }
            signerfile = opt_arg();
            break;
        case OPT_RECIP:
            recipfile = opt_arg();
            break;
        case OPT_MD:
            if (!opt_md(opt_arg(), &sign_md))
                goto opthelp;
            break;
        case OPT_CIPHER:
            if (!opt_cipher(opt_unknown(), &cipher))
                goto opthelp;
            break;
        case OPT_INKEY:
            /* If previous -inkey argument add signer to list */
            if (keyfile) {
                if (signerfile == NULL) {
                    BIO_printf(bio_err,
                               "%s: Must have -signer before -inkey\n", prog);
                    goto opthelp;
                }
                if (sksigners == NULL
                    && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
                    goto end;
                sk_OPENSSL_STRING_push(sksigners, signerfile);
                signerfile = NULL;
                if (skkeys == NULL
                    && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
                    goto end;
                sk_OPENSSL_STRING_push(skkeys, keyfile);
            }
            keyfile = opt_arg();
            break;
        case OPT_KEYFORM:
            if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
                goto opthelp;
            break;
        case OPT_CERTFILE:
            certfile = opt_arg();
            break;
        case OPT_CAFILE:
            CAfile = opt_arg();
            break;
        case OPT_CAPATH:
            CApath = opt_arg();
            break;
        case OPT_NOCAFILE:
            noCAfile = 1;
            break;
        case OPT_NOCAPATH:
            noCApath = 1;
            break;
        case OPT_CONTENT:
            contfile = opt_arg();
            break;
        case OPT_V_CASES:
            if (!opt_verify(o, vpm))
                goto opthelp;
            vpmtouched++;
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
        BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
        goto opthelp;
    }

    if (operation & SMIME_SIGNERS) {
        /* Check to see if any final signer needs to be appended */
        if (keyfile && !signerfile) {
            BIO_puts(bio_err, "Illegal -inkey without -signer\n");
            goto opthelp;
        }
        if (signerfile) {
            if (!sksigners
                && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
                goto end;
            sk_OPENSSL_STRING_push(sksigners, signerfile);
            if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
                goto end;
            if (!keyfile)
                keyfile = signerfile;
            sk_OPENSSL_STRING_push(skkeys, keyfile);
        }
        if (!sksigners) {
            BIO_printf(bio_err, "No signer certificate specified\n");
            goto opthelp;
        }
        signerfile = NULL;
        keyfile = NULL;
        need_rand = 1;
    } else if (operation == SMIME_DECRYPT) {
        if (!recipfile && !keyfile) {
            BIO_printf(bio_err,
                       "No recipient certificate or key specified\n");
            goto opthelp;
        }
    } else if (operation == SMIME_ENCRYPT) {
        if (argc == 0) {
            BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
            goto opthelp;
        }
        need_rand = 1;
    } else if (!operation)
        goto opthelp;

    if (!app_passwd(passinarg, NULL, &passin, NULL)) {
        BIO_printf(bio_err, "Error getting password\n");
        goto end;
    }

    if (need_rand) {
        app_RAND_load_file(NULL, (inrand != NULL));
        if (inrand != NULL)
            BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
                       app_RAND_load_files(inrand));
    }

    ret = 2;

    if (!(operation & SMIME_SIGNERS))
        flags &= ~PKCS7_DETACHED;

    if (!(operation & SMIME_OP)) {
        if (flags & PKCS7_BINARY)
            outformat = FORMAT_BINARY;
    }

    if (!(operation & SMIME_IP)) {
        if (flags & PKCS7_BINARY)
            informat = FORMAT_BINARY;
    }

    if (operation == SMIME_ENCRYPT) {
        if (!cipher) {
#ifndef OPENSSL_NO_DES
            cipher = EVP_des_ede3_cbc();
#else
            BIO_printf(bio_err, "No cipher selected\n");
            goto end;
#endif
        }
        encerts = sk_X509_new_null();
        if (!encerts)
            goto end;
        while (*argv) {
            cert = load_cert(*argv, FORMAT_PEM,
                             "recipient certificate file");
            if (cert == NULL)
                goto end;
            sk_X509_push(encerts, cert);
            cert = NULL;
            argv++;
        }
    }

    if (certfile) {
        if (!load_certs(certfile, &other, FORMAT_PEM, NULL,
                        "certificate file")) {
            ERR_print_errors(bio_err);
            goto end;
        }
    }

    if (recipfile && (operation == SMIME_DECRYPT)) {
        if ((recip = load_cert(recipfile, FORMAT_PEM,
                               "recipient certificate file")) == NULL) {
            ERR_print_errors(bio_err);
            goto end;
        }
    }

    if (operation == SMIME_DECRYPT) {
        if (!keyfile)
            keyfile = recipfile;
    } else if (operation == SMIME_SIGN) {
        if (!keyfile)
            keyfile = signerfile;
    } else
        keyfile = NULL;

    if (keyfile) {
        key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
        if (!key)
            goto end;
    }

    in = bio_open_default(infile, 'r', informat);
    if (in == NULL)
        goto end;

    if (operation & SMIME_IP) {
        if (informat == FORMAT_SMIME)
            p7 = SMIME_read_PKCS7(in, &indata);
        else if (informat == FORMAT_PEM)
            p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
        else if (informat == FORMAT_ASN1)
            p7 = d2i_PKCS7_bio(in, NULL);
        else {
            BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
            goto end;
        }

        if (!p7) {
            BIO_printf(bio_err, "Error reading S/MIME message\n");
            goto end;
        }
        if (contfile) {
            BIO_free(indata);
            if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
                BIO_printf(bio_err, "Can't read content file %s\n", contfile);
                goto end;
            }
        }
    }

    out = bio_open_default(outfile, 'w', outformat);
    if (out == NULL)
        goto end;

    if (operation == SMIME_VERIFY) {
        if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
            goto end;
        X509_STORE_set_verify_cb(store, smime_cb);
        if (vpmtouched)
            X509_STORE_set1_param(store, vpm);
    }

    ret = 3;

    if (operation == SMIME_ENCRYPT) {
        if (indef)
            flags |= PKCS7_STREAM;
        p7 = PKCS7_encrypt(encerts, in, cipher, flags);
    } else if (operation & SMIME_SIGNERS) {
        int i;
        /*
         * If detached data content we only enable streaming if S/MIME output
         * format.
         */
        if (operation == SMIME_SIGN) {
            if (flags & PKCS7_DETACHED) {
                if (outformat == FORMAT_SMIME)
                    flags |= PKCS7_STREAM;
            } else if (indef)
                flags |= PKCS7_STREAM;
            flags |= PKCS7_PARTIAL;
            p7 = PKCS7_sign(NULL, NULL, other, in, flags);
            if (!p7)
                goto end;
            if (flags & PKCS7_NOCERTS) {
                for (i = 0; i < sk_X509_num(other); i++) {
                    X509 *x = sk_X509_value(other, i);
                    PKCS7_add_certificate(p7, x);
                }
            }
        } else
            flags |= PKCS7_REUSE_DIGEST;
        for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
            signerfile = sk_OPENSSL_STRING_value(sksigners, i);
            keyfile = sk_OPENSSL_STRING_value(skkeys, i);
            signer = load_cert(signerfile, FORMAT_PEM,
                               "signer certificate");
            if (!signer)
                goto end;
            key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
            if (!key)
                goto end;
            if (!PKCS7_sign_add_signer(p7, signer, key, sign_md, flags))
                goto end;
            X509_free(signer);
            signer = NULL;
            EVP_PKEY_free(key);
            key = NULL;
        }
        /* If not streaming or resigning finalize structure */
        if ((operation == SMIME_SIGN) && !(flags & PKCS7_STREAM)) {
            if (!PKCS7_final(p7, in, flags))
                goto end;
        }
    }

    if (!p7) {
        BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
        goto end;
    }

    ret = 4;
    if (operation == SMIME_DECRYPT) {
        if (!PKCS7_decrypt(p7, key, recip, out, flags)) {
            BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
            goto end;
        }
    } else if (operation == SMIME_VERIFY) {
        STACK_OF(X509) *signers;
        if (PKCS7_verify(p7, other, store, indata, out, flags))
            BIO_printf(bio_err, "Verification successful\n");
        else {
            BIO_printf(bio_err, "Verification failure\n");
            goto end;
        }
        signers = PKCS7_get0_signers(p7, other, flags);
        if (!save_certs(signerfile, signers)) {
            BIO_printf(bio_err, "Error writing signers to %s\n", signerfile);
            ret = 5;
            goto end;
        }
        sk_X509_free(signers);
    } else if (operation == SMIME_PK7OUT)
        PEM_write_bio_PKCS7(out, p7);
    else {
        if (to)
            BIO_printf(out, "To: %s%s", to, mime_eol);
        if (from)
            BIO_printf(out, "From: %s%s", from, mime_eol);
        if (subject)
            BIO_printf(out, "Subject: %s%s", subject, mime_eol);
        if (outformat == FORMAT_SMIME) {
            if (operation == SMIME_RESIGN)
                rv = SMIME_write_PKCS7(out, p7, indata, flags);
            else
                rv = SMIME_write_PKCS7(out, p7, in, flags);
        } else if (outformat == FORMAT_PEM)
            rv = PEM_write_bio_PKCS7_stream(out, p7, in, flags);
        else if (outformat == FORMAT_ASN1)
            rv = i2d_PKCS7_bio_stream(out, p7, in, flags);
        else {
            BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
            goto end;
        }
        if (rv == 0) {
            BIO_printf(bio_err, "Error writing output\n");
            ret = 3;
            goto end;
        }
    }
    ret = 0;
 end:
    if (need_rand)
        app_RAND_write_file(NULL);
    if (ret)
        ERR_print_errors(bio_err);
    sk_X509_pop_free(encerts, X509_free);
    sk_X509_pop_free(other, X509_free);
    X509_VERIFY_PARAM_free(vpm);
    sk_OPENSSL_STRING_free(sksigners);
    sk_OPENSSL_STRING_free(skkeys);
    X509_STORE_free(store);
    X509_free(cert);
    X509_free(recip);
    X509_free(signer);
    EVP_PKEY_free(key);
    PKCS7_free(p7);
    release_engine(e);
    BIO_free(in);
    BIO_free(indata);
    BIO_free_all(out);
    OPENSSL_free(passin);
    return (ret);
}
示例#10
0
/* Verifies that the file and the signature exists, and does a signature check
 * afterwards. If any error is to be considered a verify failure, then
 * ERRORS_FATAL should be set to true.
 *
 * returns: true if able to validate the signature, false otherwise */
static bool verify_signature(const char *data_filename, const char *sig_filename, bool errors_fatal)
{
	int ret;
	bool result = false;
	struct stat st;
	char *errorstr = NULL;

	int data_fd = -1;
	size_t data_len;
	unsigned char *data = NULL;
	BIO *data_BIO = NULL;

	int sig_fd = -1;
	size_t sig_len;
	unsigned char *sig = NULL;
	BIO *sig_BIO = NULL;

	PKCS7 *p7 = NULL;
	BIO *verify_BIO = NULL;

	/* get the signature */
	sig_fd = open(sig_filename, O_RDONLY);
	if (sig_fd == -1) {
		string_or_die(&errorstr, "Failed open %s: %s\n", sig_filename, strerror(errno));
		goto error;
	}
	if (fstat(sig_fd, &st) != 0) {
		string_or_die(&errorstr, "Failed to stat %s file\n", sig_filename);
		goto error;
	}
	sig_len = st.st_size;
	sig = mmap(NULL, sig_len, PROT_READ, MAP_PRIVATE, sig_fd, 0);
	if (sig == MAP_FAILED) {
		string_or_die(&errorstr, "Failed to mmap %s signature\n", sig_filename);
		goto error;
	}
	sig_BIO = BIO_new_mem_buf(sig, sig_len);
	if (!sig_BIO) {
		string_or_die(&errorstr, "Failed to read %s signature into BIO\n", sig_filename);
		goto error;
	}

	/* the signature is in DER format, so d2i it into verification pkcs7 form */
	p7 = d2i_PKCS7_bio(sig_BIO, NULL);
	if (p7 == NULL) {
		string_or_die(&errorstr, "NULL PKCS7 File\n");
		goto error;
	}

	/* get the data to be verified */
	data_fd = open(data_filename, O_RDONLY);
	if (data_fd == -1) {
		string_or_die(&errorstr, "Failed open %s\n", data_filename);
		goto error;
	}
	if (fstat(data_fd, &st) != 0) {
		string_or_die(&errorstr, "Failed to stat %s\n", data_filename);
		goto error;
	}
	data_len = st.st_size;
	data = mmap(NULL, data_len, PROT_READ, MAP_PRIVATE, data_fd, 0);
	if (data == MAP_FAILED) {
		string_or_die(&errorstr, "Failed to mmap %s\n", data_filename);
		goto error;
	}
	data_BIO = BIO_new_mem_buf(data, data_len);
	if (!data_BIO) {
		string_or_die(&errorstr, "Failed to read %s into BIO\n", data_filename);
		goto error;
	}

	/* munge the signature and data into a verifiable format */
	verify_BIO = PKCS7_dataInit(p7, data_BIO);
	if (!verify_BIO) {
		string_or_die(&errorstr, "Failed PKCS7_dataInit()\n");
		goto error;
	}

	/* Verify the signature, outdata can be NULL because we don't use it */
	ret = PKCS7_verify(p7, x509_stack, store, verify_BIO, NULL, 0);
	if (ret == 1) {
		result = true;
	} else {
		string_or_die(&errorstr, "Signature check failed!\n");
	}

error:
	if (!result && errors_fatal) {
		fputs(errorstr, stderr);
		ERR_print_errors_fp(stderr);
	}

	free(errorstr);

	if (sig) {
		munmap(sig, sig_len);
	}
	if (sig_fd >= 0) {
		close(sig_fd);
	}
	if (data) {
		munmap(data, data_len);
	}
	if (data_fd >= 0) {
		close(data_fd);
	}
	if (sig_BIO) {
		BIO_free(sig_BIO);
	}
	if (data_BIO) {
		BIO_free(data_BIO);
	}
	if (verify_BIO) {
		BIO_free(verify_BIO);
	}
	if (p7) {
		PKCS7_free(p7);
	}

	return result;
}
示例#11
0
文件: pkcs7.c 项目: leegoex/flinter
int pkcs7_verify_into_memory(const char *cacert,
                             const char *filename,
                             int format,
                             int (*handler)(const void *, size_t, void *),
                             void *parameter)
{
    char *memory;
    long length;

    X509_STORE *store;
    PKCS7 *pkcs7;
    BIO *content;
    BIO *output;

    if (format != PKCS7_INPUT_FORMAT_SMIME  &&
        format != PKCS7_INPUT_FORMAT_PEM    &&
        format != PKCS7_INPUT_FORMAT_DER    ){

        return -1;
    }

    pkcs7 = pkcs7_get_signed_file(filename, &content, format);
    if (!pkcs7) {
        return -2;
    }

    store = pkcs7_get_ca_store(cacert);
    if (!store) {
        PKCS7_free(pkcs7);

        if (content) {
            BIO_free(content);
        }

        return -3;
    }

    output = BIO_new(BIO_s_mem());
    if (!output) {
        X509_STORE_free(store);
        PKCS7_free(pkcs7);

        if (content) {
            BIO_free(content);
        }

        return -4;
    }

    if (PKCS7_verify(pkcs7, NULL, store, content, output, 0) <= 0) {
        BIO_free(output);
        X509_STORE_free(store);
        PKCS7_free(pkcs7);

        if (content) {
            BIO_free(content);
        }

        return -5;
    }

    X509_STORE_free(store);
    PKCS7_free(pkcs7);

    if (content) {
        BIO_free(content);
    }

    length = BIO_get_mem_data(output, &memory);
    if (length < 0 || !memory) {
        BIO_free(output);
        return -6;
    }

    if (handler(memory, (size_t)length, parameter)) {
        BIO_free(output);
        return -7;
    }

    BIO_free(output);
    return 0;
}
示例#12
0
int
opkg_verify_file (char *text_file, char *sig_file)
{
#if defined HAVE_GPGME
    if (conf->check_signature == 0 )
        return 0;
    int status = -1;
    gpgme_ctx_t ctx;
    gpgme_data_t sig, text, key;
    gpgme_error_t err;
    gpgme_verify_result_t result;
    gpgme_signature_t s;
    char *trusted_path = NULL;

    gpgme_check_version (NULL);

    err = gpgme_new (&ctx);

    if (err)
	return -1;

    sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
    err = gpgme_data_new_from_file (&key, trusted_path, 1);
    free (trusted_path);
    if (err)
    {
      return -1;
    }
    err = gpgme_op_import (ctx, key);
    if (err)
    {
      gpgme_data_release (key);
      return -1;
    }
    gpgme_data_release (key);

    err = gpgme_data_new_from_file (&sig, sig_file, 1);
    if (err)
    {
	gpgme_release (ctx);
	return -1;
    }

    err = gpgme_data_new_from_file (&text, text_file, 1);
    if (err)
    {
        gpgme_data_release (sig);
	gpgme_release (ctx);
	return -1;
    }

    err = gpgme_op_verify (ctx, sig, text, NULL);

    result = gpgme_op_verify_result (ctx);
    if (!result)
	return -1;

    /* see if any of the signitures matched */
    s = result->signatures;
    while (s)
    {
	status = gpg_err_code (s->status);
	if (status == GPG_ERR_NO_ERROR)
	    break;
	s = s->next;
    }


    gpgme_data_release (sig);
    gpgme_data_release (text);
    gpgme_release (ctx);

    return status;
#elif defined HAVE_OPENSSL
    X509_STORE *store = NULL;
    PKCS7 *p7 = NULL;
    BIO *in = NULL, *indata = NULL;

    // Sig check failed by default !
    int status = -1;

    openssl_init();

    // Set-up the key store
    if(!(store = setup_verify(conf->signature_ca_file, conf->signature_ca_path))){
        opkg_msg(ERROR, "Can't open CA certificates.\n");
        goto verify_file_end;
    }

    // Open a BIO to read the sig file
    if (!(in = BIO_new_file(sig_file, "rb"))){
        opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
        goto verify_file_end;
    }

    // Read the PKCS7 block contained in the sig file
    p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
    if(!p7){
        opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
		sig_file);
        goto verify_file_end;
    }
#if defined(HAVE_PATHFINDER)
    if(conf->check_x509_path){
	if(!pkcs7_pathfinder_verify_signers(p7)){
	    opkg_msg(ERROR, "pkcs7_pathfinder_verify_signers: "
		    "Path verification failed.\n");
	    goto verify_file_end;
	}
    }
#endif

    // Open the Package file to authenticate
    if (!(indata = BIO_new_file(text_file, "rb"))){
        opkg_msg(ERROR, "Can't open file %s.\n", text_file);
        goto verify_file_end;
    }

    // Let's verify the autenticity !
    if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
        // Get Off My Lawn!
        opkg_msg(ERROR, "Verification failure.\n");
    }else{
        // Victory !
        status = 0;
    }

verify_file_end:
    BIO_free(in);
    BIO_free(indata);
    PKCS7_free(p7);
    X509_STORE_free(store);

    return status;
#else
    /* mute `unused variable' warnings. */
    (void) sig_file;
    (void) text_file;
    (void) conf;
    return 0;
#endif
}
示例#13
0
int MAIN(int argc, char **argv)
	{
	ENGINE *e = NULL;
	int operation = 0;
	int ret = 0;
	char **args;
	const char *inmode = "r", *outmode = "w";
	char *infile = NULL, *outfile = NULL;
	char *signerfile = NULL, *recipfile = NULL;
	char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
	const EVP_CIPHER *cipher = NULL;
	PKCS7 *p7 = NULL;
	X509_STORE *store = NULL;
	X509 *cert = NULL, *recip = NULL, *signer = NULL;
	EVP_PKEY *key = NULL;
	STACK_OF(X509) *encerts = NULL, *other = NULL;
	BIO *in = NULL, *out = NULL, *indata = NULL;
	int badarg = 0;
	int flags = PKCS7_DETACHED;
	char *to = NULL, *from = NULL, *subject = NULL;
	char *CAfile = NULL, *CApath = NULL;
	char *passargin = NULL, *passin = NULL;
	char *inrand = NULL;
	int need_rand = 0;
	int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
        int keyform = FORMAT_PEM;
#ifndef OPENSSL_NO_ENGINE
	char *engine=NULL;
#endif

	X509_VERIFY_PARAM *vpm = NULL;

	args = argv + 1;
	ret = 1;

	apps_startup();

	if (bio_err == NULL)
		{
		if ((bio_err = BIO_new(BIO_s_file())) != NULL)
			BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
		}

	if (!load_config(bio_err, NULL))
		goto end;

	while (!badarg && *args && *args[0] == '-')
		{
		if (!strcmp (*args, "-encrypt"))
			operation = SMIME_ENCRYPT;
		else if (!strcmp (*args, "-decrypt"))
			operation = SMIME_DECRYPT;
		else if (!strcmp (*args, "-sign"))
			operation = SMIME_SIGN;
		else if (!strcmp (*args, "-verify"))
			operation = SMIME_VERIFY;
		else if (!strcmp (*args, "-pk7out"))
			operation = SMIME_PK7OUT;
#ifndef OPENSSL_NO_DES
		else if (!strcmp (*args, "-des3")) 
				cipher = EVP_des_ede3_cbc();
		else if (!strcmp (*args, "-des")) 
				cipher = EVP_des_cbc();
#endif
#ifndef OPENSSL_NO_SEED
		else if (!strcmp (*args, "-seed")) 
				cipher = EVP_seed_cbc();
#endif
#ifndef OPENSSL_NO_RC2
		else if (!strcmp (*args, "-rc2-40")) 
				cipher = EVP_rc2_40_cbc();
		else if (!strcmp (*args, "-rc2-128")) 
				cipher = EVP_rc2_cbc();
		else if (!strcmp (*args, "-rc2-64")) 
				cipher = EVP_rc2_64_cbc();
#endif
#ifndef OPENSSL_NO_AES
		else if (!strcmp(*args,"-aes128"))
				cipher = EVP_aes_128_cbc();
		else if (!strcmp(*args,"-aes192"))
				cipher = EVP_aes_192_cbc();
		else if (!strcmp(*args,"-aes256"))
				cipher = EVP_aes_256_cbc();
#endif
#ifndef OPENSSL_NO_CAMELLIA
		else if (!strcmp(*args,"-camellia128"))
				cipher = EVP_camellia_128_cbc();
		else if (!strcmp(*args,"-camellia192"))
				cipher = EVP_camellia_192_cbc();
		else if (!strcmp(*args,"-camellia256"))
				cipher = EVP_camellia_256_cbc();
#endif
		else if (!strcmp (*args, "-text")) 
				flags |= PKCS7_TEXT;
		else if (!strcmp (*args, "-nointern")) 
				flags |= PKCS7_NOINTERN;
		else if (!strcmp (*args, "-noverify")) 
				flags |= PKCS7_NOVERIFY;
		else if (!strcmp (*args, "-nochain")) 
				flags |= PKCS7_NOCHAIN;
		else if (!strcmp (*args, "-nocerts")) 
				flags |= PKCS7_NOCERTS;
		else if (!strcmp (*args, "-noattr")) 
				flags |= PKCS7_NOATTR;
		else if (!strcmp (*args, "-nodetach")) 
				flags &= ~PKCS7_DETACHED;
		else if (!strcmp (*args, "-nosmimecap"))
				flags |= PKCS7_NOSMIMECAP;
		else if (!strcmp (*args, "-binary"))
				flags |= PKCS7_BINARY;
		else if (!strcmp (*args, "-nosigs"))
				flags |= PKCS7_NOSIGS;
		else if (!strcmp (*args, "-nooldmime"))
				flags |= PKCS7_NOOLDMIMETYPE;
		else if (!strcmp (*args, "-crlfeol"))
				flags |= PKCS7_CRLFEOL;
		else if (!strcmp(*args,"-rand"))
			{
			if (args[1])
				{
				args++;
				inrand = *args;
				}
			else
				badarg = 1;
			need_rand = 1;
			}
#ifndef OPENSSL_NO_ENGINE
		else if (!strcmp(*args,"-engine"))
			{
			if (args[1])
				{
				args++;
				engine = *args;
				}
			else badarg = 1;
			}
#endif
		else if (!strcmp(*args,"-passin"))
			{
			if (args[1])
				{
				args++;
				passargin = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-to"))
			{
			if (args[1])
				{
				args++;
				to = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-from"))
			{
			if (args[1])
				{
				args++;
				from = *args;
				}
			else badarg = 1;
			}
		else if (!strcmp (*args, "-subject"))
			{
			if (args[1])
				{
				args++;
				subject = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-signer"))
			{
			if (args[1])
				{
				args++;
				signerfile = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-recip"))
			{
			if (args[1])
				{
				args++;
				recipfile = *args;
				}
			else badarg = 1;
			}
		else if (!strcmp (*args, "-inkey"))
			{
			if (args[1])
				{
				args++;
				keyfile = *args;
				}
			else
				badarg = 1;
		}
		else if (!strcmp (*args, "-keyform"))
			{
			if (args[1])
				{
				args++;
				keyform = str2fmt(*args);
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-certfile"))
			{
			if (args[1])
				{
				args++;
				certfile = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-CAfile"))
			{
			if (args[1])
				{
				args++;
				CAfile = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-CApath"))
			{
			if (args[1])
				{
				args++;
				CApath = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-in"))
			{
			if (args[1])
				{
				args++;
				infile = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-inform"))
			{
			if (args[1])
				{
				args++;
				informat = str2fmt(*args);
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-outform"))
			{
			if (args[1])
				{
				args++;
				outformat = str2fmt(*args);
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-out"))
			{
			if (args[1])
				{
				args++;
				outfile = *args;
				}
			else
				badarg = 1;
			}
		else if (!strcmp (*args, "-content"))
			{
			if (args[1])
				{
				args++;
				contfile = *args;
				}
			else
				badarg = 1;
			}
		else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
			continue;
		else
			badarg = 1;
		args++;
		}


	if (operation == SMIME_SIGN)
		{
		if (!signerfile)
			{
			BIO_printf(bio_err, "No signer certificate specified\n");
			badarg = 1;
			}
		need_rand = 1;
		}
	else if (operation == SMIME_DECRYPT)
		{
		if (!recipfile && !keyfile)
			{
			BIO_printf(bio_err, "No recipient certificate or key specified\n");
			badarg = 1;
			}
		}
	else if (operation == SMIME_ENCRYPT)
		{
		if (!*args)
			{
			BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
			badarg = 1;
			}
		need_rand = 1;
		}
	else if (!operation)
		badarg = 1;

	if (badarg)
		{
		BIO_printf (bio_err, "Usage smime [options] cert.pem ...\n");
		BIO_printf (bio_err, "where options are\n");
		BIO_printf (bio_err, "-encrypt       encrypt message\n");
		BIO_printf (bio_err, "-decrypt       decrypt encrypted message\n");
		BIO_printf (bio_err, "-sign          sign message\n");
		BIO_printf (bio_err, "-verify        verify signed message\n");
		BIO_printf (bio_err, "-pk7out        output PKCS#7 structure\n");
#ifndef OPENSSL_NO_DES
		BIO_printf (bio_err, "-des3          encrypt with triple DES\n");
		BIO_printf (bio_err, "-des           encrypt with DES\n");
#endif
#ifndef OPENSSL_NO_SEED
		BIO_printf (bio_err, "-seed          encrypt with SEED\n");
#endif
#ifndef OPENSSL_NO_RC2
		BIO_printf (bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
		BIO_printf (bio_err, "-rc2-64        encrypt with RC2-64\n");
		BIO_printf (bio_err, "-rc2-128       encrypt with RC2-128\n");
#endif
#ifndef OPENSSL_NO_AES
		BIO_printf (bio_err, "-aes128, -aes192, -aes256\n");
		BIO_printf (bio_err, "               encrypt PEM output with cbc aes\n");
#endif
#ifndef OPENSSL_NO_CAMELLIA
		BIO_printf (bio_err, "-camellia128, -camellia192, -camellia256\n");
		BIO_printf (bio_err, "               encrypt PEM output with cbc camellia\n");
#endif
		BIO_printf (bio_err, "-nointern      don't search certificates in message for signer\n");
		BIO_printf (bio_err, "-nosigs        don't verify message signature\n");
		BIO_printf (bio_err, "-noverify      don't verify signers certificate\n");
		BIO_printf (bio_err, "-nocerts       don't include signers certificate when signing\n");
		BIO_printf (bio_err, "-nodetach      use opaque signing\n");
		BIO_printf (bio_err, "-noattr        don't include any signed attributes\n");
		BIO_printf (bio_err, "-binary        don't translate message to text\n");
		BIO_printf (bio_err, "-certfile file other certificates file\n");
		BIO_printf (bio_err, "-signer file   signer certificate file\n");
		BIO_printf (bio_err, "-recip  file   recipient certificate file for decryption\n");
		BIO_printf (bio_err, "-in file       input file\n");
		BIO_printf (bio_err, "-inform arg    input format SMIME (default), PEM or DER\n");
		BIO_printf (bio_err, "-inkey file    input private key (if not signer or recipient)\n");
		BIO_printf (bio_err, "-keyform arg   input private key format (PEM or ENGINE)\n");
		BIO_printf (bio_err, "-out file      output file\n");
		BIO_printf (bio_err, "-outform arg   output format SMIME (default), PEM or DER\n");
		BIO_printf (bio_err, "-content file  supply or override content for detached signature\n");
		BIO_printf (bio_err, "-to addr       to address\n");
		BIO_printf (bio_err, "-from ad       from address\n");
		BIO_printf (bio_err, "-subject s     subject\n");
		BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
		BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
		BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
		BIO_printf (bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
		BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
#ifndef OPENSSL_NO_ENGINE
		BIO_printf (bio_err, "-engine e      use engine e, possibly a hardware device.\n");
#endif
		BIO_printf (bio_err, "-passin arg    input file pass phrase source\n");
		BIO_printf(bio_err,  "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
		BIO_printf(bio_err,  "               load the file (or the files in the directory) into\n");
		BIO_printf(bio_err,  "               the random number generator\n");
		BIO_printf (bio_err, "cert.pem       recipient certificate(s) for encryption\n");
		goto end;
		}

#ifndef OPENSSL_NO_ENGINE
        e = setup_engine(bio_err, engine, 0);
#endif

	if (!app_passwd(bio_err, passargin, NULL, &passin, NULL))
		{
		BIO_printf(bio_err, "Error getting password\n");
		goto end;
		}

	if (need_rand)
		{
		app_RAND_load_file(NULL, bio_err, (inrand != NULL));
		if (inrand != NULL)
			BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
				app_RAND_load_files(inrand));
		}

	ret = 2;

	if (operation != SMIME_SIGN)
		flags &= ~PKCS7_DETACHED;

	if (operation & SMIME_OP)
		{
		if (flags & PKCS7_BINARY)
			inmode = "rb";
		if (outformat == FORMAT_ASN1)
			outmode = "wb";
		}
	else
		{
		if (flags & PKCS7_BINARY)
			outmode = "wb";
		if (informat == FORMAT_ASN1)
			inmode = "rb";
		}

	if (operation == SMIME_ENCRYPT)
		{
		if (!cipher)
			{
#ifndef OPENSSL_NO_RC2			
			cipher = EVP_rc2_40_cbc();
#else
			BIO_printf(bio_err, "No cipher selected\n");
			goto end;
#endif
			}
		encerts = sk_X509_new_null();
		while (*args)
			{
			if (!(cert = load_cert(bio_err,*args,FORMAT_PEM,
				NULL, e, "recipient certificate file")))
				{
#if 0				/* An appropriate message is already printed */
				BIO_printf(bio_err, "Can't read recipient certificate file %s\n", *args);
#endif
				goto end;
				}
			sk_X509_push(encerts, cert);
			cert = NULL;
			args++;
			}
		}

	if (signerfile && (operation == SMIME_SIGN))
		{
		if (!(signer = load_cert(bio_err,signerfile,FORMAT_PEM, NULL,
			e, "signer certificate")))
			{
#if 0			/* An appropri message has already been printed */
			BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile);
#endif
			goto end;
			}
		}

	if (certfile)
		{
		if (!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
			e, "certificate file")))
			{
#if 0			/* An appropriate message has already been printed */
			BIO_printf(bio_err, "Can't read certificate file %s\n", certfile);
#endif
			ERR_print_errors(bio_err);
			goto end;
			}
		}

	if (recipfile && (operation == SMIME_DECRYPT))
		{
		if (!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL,
			e, "recipient certificate file")))
			{
#if 0			/* An appropriate message has alrady been printed */
			BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile);
#endif
			ERR_print_errors(bio_err);
			goto end;
			}
		}

	if (operation == SMIME_DECRYPT)
		{
		if (!keyfile)
			keyfile = recipfile;
		}
	else if (operation == SMIME_SIGN)
		{
		if (!keyfile)
			keyfile = signerfile;
		}
	else keyfile = NULL;

	if (keyfile)
		{
		key = load_key(bio_err, keyfile, keyform, 0, passin, e,
			       "signing key file");
		if (!key)
			goto end;
		}

	if (infile)
		{
		if (!(in = BIO_new_file(infile, inmode)))
			{
			BIO_printf (bio_err,
				 "Can't open input file %s\n", infile);
			goto end;
			}
		}
	else
		in = BIO_new_fp(stdin, BIO_NOCLOSE);

	if (outfile)
		{
		if (!(out = BIO_new_file(outfile, outmode)))
			{
			BIO_printf (bio_err,
				 "Can't open output file %s\n", outfile);
			goto end;
			}
		}
	else
		{
		out = BIO_new_fp(stdout, BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
		{
		    BIO *tmpbio = BIO_new(BIO_f_linebuffer());
		    out = BIO_push(tmpbio, out);
		}
#endif
		}

	if (operation == SMIME_VERIFY)
		{
		if (!(store = setup_verify(bio_err, CAfile, CApath)))
			goto end;
		X509_STORE_set_verify_cb_func(store, smime_cb);
		if (vpm)
			X509_STORE_set1_param(store, vpm);
		}


	ret = 3;

	if (operation == SMIME_ENCRYPT)
		p7 = PKCS7_encrypt(encerts, in, cipher, flags);
	else if (operation == SMIME_SIGN)
		{
		/* If detached data and SMIME output enable partial
		 * signing.
		 */
		if ((flags & PKCS7_DETACHED) && (outformat == FORMAT_SMIME))
			flags |= PKCS7_STREAM;
		p7 = PKCS7_sign(signer, key, other, in, flags);
		}
	else
		{
		if (informat == FORMAT_SMIME) 
			p7 = SMIME_read_PKCS7(in, &indata);
		else if (informat == FORMAT_PEM) 
			p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
		else if (informat == FORMAT_ASN1) 
			p7 = d2i_PKCS7_bio(in, NULL);
		else
			{
			BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
			goto end;
			}

		if (!p7)
			{
			BIO_printf(bio_err, "Error reading S/MIME message\n");
			goto end;
			}
		if (contfile)
			{
			BIO_free(indata);
			if (!(indata = BIO_new_file(contfile, "rb")))
				{
				BIO_printf(bio_err, "Can't read content file %s\n", contfile);
				goto end;
				}
			}
		}

	if (!p7)
		{
		BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
		goto end;
		}

	ret = 4;
	if (operation == SMIME_DECRYPT)
		{
		if (!PKCS7_decrypt(p7, key, recip, out, flags))
			{
			BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
			goto end;
			}
		}
	else if (operation == SMIME_VERIFY)
		{
		STACK_OF(X509) *signers;
		if (PKCS7_verify(p7, other, store, indata, out, flags))
			BIO_printf(bio_err, "Verification successful\n");
		else
			{
			BIO_printf(bio_err, "Verification failure\n");
			goto end;
			}
		signers = PKCS7_get0_signers(p7, other, flags);
		if (!save_certs(signerfile, signers))
			{
			BIO_printf(bio_err, "Error writing signers to %s\n",
								signerfile);
			ret = 5;
			goto end;
			}
		sk_X509_free(signers);
		}
	else if (operation == SMIME_PK7OUT)
		PEM_write_bio_PKCS7(out, p7);
	else
		{
		if (to)
			BIO_printf(out, "To: %s\n", to);
		if (from)
			BIO_printf(out, "From: %s\n", from);
		if (subject)
			BIO_printf(out, "Subject: %s\n", subject);
		if (outformat == FORMAT_SMIME) 
			SMIME_write_PKCS7(out, p7, in, flags);
		else if (outformat == FORMAT_PEM) 
			PEM_write_bio_PKCS7(out,p7);
		else if (outformat == FORMAT_ASN1) 
			i2d_PKCS7_bio(out,p7);
		else
			{
			BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
			goto end;
			}
		}
	ret = 0;
end:
	if (need_rand)
		app_RAND_write_file(NULL, bio_err);
	if (ret) ERR_print_errors(bio_err);
	sk_X509_pop_free(encerts, X509_free);
	sk_X509_pop_free(other, X509_free);
	if (vpm)
		X509_VERIFY_PARAM_free(vpm);
	X509_STORE_free(store);
	X509_free(cert);
	X509_free(recip);
	X509_free(signer);
	EVP_PKEY_free(key);
	PKCS7_free(p7);
	BIO_free(in);
	BIO_free(indata);
	BIO_free_all(out);
	if (passin) OPENSSL_free(passin);
	return (ret);
}
示例#14
0
int
easy_pkcs7_verify(const char *content, size_t len,
    const char *signature, size_t signature_len,
    const char *anchor, int is_pkg)
{
	STACK_OF(X509) *cert_chain, *signers;
	X509_STORE *store;
	BIO *sig, *in;
	PKCS7 *p7;
	int i, status;
	X509_NAME *name;
	char *subject;

	OpenSSL_add_all_algorithms();
	ERR_load_crypto_strings();

	status = -1;

	if (cert_chain_file)
		cert_chain = file_to_certs(cert_chain_file);
	else
		cert_chain = NULL;

	store = X509_STORE_new();
	if (store == NULL) {
		sk_X509_free(cert_chain);
		warnx("Failed to create certificate store");
		return -1;
	}

	X509_STORE_load_locations(store, anchor, NULL);

	in = BIO_new_mem_buf(__UNCONST(content), len);
	sig = BIO_new_mem_buf(__UNCONST(signature), signature_len);
	signers = NULL;

	p7 = PEM_read_bio_PKCS7(sig, NULL, NULL, NULL);
	if (p7 == NULL) {
		warnx("Failed to parse the signature");
		goto cleanup;
	}

	if (PKCS7_verify(p7, cert_chain, store, in, NULL, 0) != 1) {
		warnx("Failed to verify signature");
		goto cleanup;
	}

	signers = PKCS7_get0_signers(p7, NULL, 0);
	if (signers == NULL) {
		warnx("Failed to get signers");
		goto cleanup;
	}
    
	if (sk_X509_num(signers) == 0) {
		warnx("No signers found");
		goto cleanup;
	}

	for (i = 0; i < sk_X509_num(signers); i++) {
		/* Compute ex_xkusage */
		X509_check_purpose(sk_X509_value(signers, i), -1, -1);

		if (check_ca(sk_X509_value(signers, i))) {
			warnx("CA keys are not valid for signatures");
			goto cleanup;
		}
		if (is_pkg) {
			if (sk_X509_value(signers, i)->ex_xkusage != pkg_key_usage) {
				warnx("Certificate must have CODE SIGNING "
				    "and EMAIL PROTECTION property");
				goto cleanup;
			}
		} else {
			if (sk_X509_value(signers, i)->ex_xkusage != 0) {
				warnx("Certificate must not have any property");
				goto cleanup;
			}
		}
	}

	printf("Sigature ok, signed by:\n");

	for (i = 0; i < sk_X509_num(signers); i++) {
		name = X509_get_subject_name(sk_X509_value(signers, i));
		subject = X509_NAME_oneline(name, NULL, 0);

		printf("\t%s\n", subject);

		OPENSSL_free(subject);
	}

	status = 0;

cleanup:
	sk_X509_free(cert_chain);
	sk_X509_free(signers);
	X509_STORE_free(store);

	PKCS7_free(p7);
	BIO_free(in);
	BIO_free(sig);

	return status;
}
示例#15
0
int
smime_main(int argc, char **argv)
{
	ENGINE *e = NULL;
	int operation = 0;
	int ret = 0;
	char **args;
	const char *inmode = "r", *outmode = "w";
	char *infile = NULL, *outfile = NULL;
	char *signerfile = NULL, *recipfile = NULL;
	STACK_OF(OPENSSL_STRING) * sksigners = NULL, *skkeys = NULL;
	char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
	const EVP_CIPHER *cipher = NULL;
	PKCS7 *p7 = NULL;
	X509_STORE *store = NULL;
	X509 *cert = NULL, *recip = NULL, *signer = NULL;
	EVP_PKEY *key = NULL;
	STACK_OF(X509) * encerts = NULL, *other = NULL;
	BIO *in = NULL, *out = NULL, *indata = NULL;
	int badarg = 0;
	int flags = PKCS7_DETACHED;
	char *to = NULL, *from = NULL, *subject = NULL;
	char *CAfile = NULL, *CApath = NULL;
	char *passargin = NULL, *passin = NULL;
	int indef = 0;
	const EVP_MD *sign_md = NULL;
	int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
	int keyform = FORMAT_PEM;
#ifndef OPENSSL_NO_ENGINE
	char *engine = NULL;
#endif

	X509_VERIFY_PARAM *vpm = NULL;

	args = argv + 1;
	ret = 1;

	while (!badarg && *args && *args[0] == '-') {
		if (!strcmp(*args, "-encrypt"))
			operation = SMIME_ENCRYPT;
		else if (!strcmp(*args, "-decrypt"))
			operation = SMIME_DECRYPT;
		else if (!strcmp(*args, "-sign"))
			operation = SMIME_SIGN;
		else if (!strcmp(*args, "-resign"))
			operation = SMIME_RESIGN;
		else if (!strcmp(*args, "-verify"))
			operation = SMIME_VERIFY;
		else if (!strcmp(*args, "-pk7out"))
			operation = SMIME_PK7OUT;
#ifndef OPENSSL_NO_DES
		else if (!strcmp(*args, "-des3"))
			cipher = EVP_des_ede3_cbc();
		else if (!strcmp(*args, "-des"))
			cipher = EVP_des_cbc();
#endif
#ifndef OPENSSL_NO_RC2
		else if (!strcmp(*args, "-rc2-40"))
			cipher = EVP_rc2_40_cbc();
		else if (!strcmp(*args, "-rc2-128"))
			cipher = EVP_rc2_cbc();
		else if (!strcmp(*args, "-rc2-64"))
			cipher = EVP_rc2_64_cbc();
#endif
#ifndef OPENSSL_NO_AES
		else if (!strcmp(*args, "-aes128"))
			cipher = EVP_aes_128_cbc();
		else if (!strcmp(*args, "-aes192"))
			cipher = EVP_aes_192_cbc();
		else if (!strcmp(*args, "-aes256"))
			cipher = EVP_aes_256_cbc();
#endif
#ifndef OPENSSL_NO_CAMELLIA
		else if (!strcmp(*args, "-camellia128"))
			cipher = EVP_camellia_128_cbc();
		else if (!strcmp(*args, "-camellia192"))
			cipher = EVP_camellia_192_cbc();
		else if (!strcmp(*args, "-camellia256"))
			cipher = EVP_camellia_256_cbc();
#endif
		else if (!strcmp(*args, "-text"))
			flags |= PKCS7_TEXT;
		else if (!strcmp(*args, "-nointern"))
			flags |= PKCS7_NOINTERN;
		else if (!strcmp(*args, "-noverify"))
			flags |= PKCS7_NOVERIFY;
		else if (!strcmp(*args, "-nochain"))
			flags |= PKCS7_NOCHAIN;
		else if (!strcmp(*args, "-nocerts"))
			flags |= PKCS7_NOCERTS;
		else if (!strcmp(*args, "-noattr"))
			flags |= PKCS7_NOATTR;
		else if (!strcmp(*args, "-nodetach"))
			flags &= ~PKCS7_DETACHED;
		else if (!strcmp(*args, "-nosmimecap"))
			flags |= PKCS7_NOSMIMECAP;
		else if (!strcmp(*args, "-binary"))
			flags |= PKCS7_BINARY;
		else if (!strcmp(*args, "-nosigs"))
			flags |= PKCS7_NOSIGS;
		else if (!strcmp(*args, "-stream"))
			indef = 1;
		else if (!strcmp(*args, "-indef"))
			indef = 1;
		else if (!strcmp(*args, "-noindef"))
			indef = 0;
		else if (!strcmp(*args, "-nooldmime"))
			flags |= PKCS7_NOOLDMIMETYPE;
		else if (!strcmp(*args, "-crlfeol"))
			flags |= PKCS7_CRLFEOL;
#ifndef OPENSSL_NO_ENGINE
		else if (!strcmp(*args, "-engine")) {
			if (!args[1])
				goto argerr;
			engine = *++args;
		}
#endif
		else if (!strcmp(*args, "-passin")) {
			if (!args[1])
				goto argerr;
			passargin = *++args;
		} else if (!strcmp(*args, "-to")) {
			if (!args[1])
				goto argerr;
			to = *++args;
		} else if (!strcmp(*args, "-from")) {
			if (!args[1])
				goto argerr;
			from = *++args;
		} else if (!strcmp(*args, "-subject")) {
			if (!args[1])
				goto argerr;
			subject = *++args;
		} else if (!strcmp(*args, "-signer")) {
			if (!args[1])
				goto argerr;
			/* If previous -signer argument add signer to list */

			if (signerfile) {
				if (!sksigners)
					sksigners = sk_OPENSSL_STRING_new_null();
				sk_OPENSSL_STRING_push(sksigners, signerfile);
				if (!keyfile)
					keyfile = signerfile;
				if (!skkeys)
					skkeys = sk_OPENSSL_STRING_new_null();
				sk_OPENSSL_STRING_push(skkeys, keyfile);
				keyfile = NULL;
			}
			signerfile = *++args;
		} else if (!strcmp(*args, "-recip")) {
			if (!args[1])
				goto argerr;
			recipfile = *++args;
		} else if (!strcmp(*args, "-md")) {
			if (!args[1])
				goto argerr;
			sign_md = EVP_get_digestbyname(*++args);
			if (sign_md == NULL) {
				BIO_printf(bio_err, "Unknown digest %s\n",
				    *args);
				goto argerr;
			}
		} else if (!strcmp(*args, "-inkey")) {
			if (!args[1])
				goto argerr;
			/* If previous -inkey arument add signer to list */
			if (keyfile) {
				if (!signerfile) {
					BIO_puts(bio_err, "Illegal -inkey without -signer\n");
					goto argerr;
				}
				if (!sksigners)
					sksigners = sk_OPENSSL_STRING_new_null();
				sk_OPENSSL_STRING_push(sksigners, signerfile);
				signerfile = NULL;
				if (!skkeys)
					skkeys = sk_OPENSSL_STRING_new_null();
				sk_OPENSSL_STRING_push(skkeys, keyfile);
			}
			keyfile = *++args;
		} else if (!strcmp(*args, "-keyform")) {
			if (!args[1])
				goto argerr;
			keyform = str2fmt(*++args);
		} else if (!strcmp(*args, "-certfile")) {
			if (!args[1])
				goto argerr;
			certfile = *++args;
		} else if (!strcmp(*args, "-CAfile")) {
			if (!args[1])
				goto argerr;
			CAfile = *++args;
		} else if (!strcmp(*args, "-CApath")) {
			if (!args[1])
				goto argerr;
			CApath = *++args;
		} else if (!strcmp(*args, "-in")) {
			if (!args[1])
				goto argerr;
			infile = *++args;
		} else if (!strcmp(*args, "-inform")) {
			if (!args[1])
				goto argerr;
			informat = str2fmt(*++args);
		} else if (!strcmp(*args, "-outform")) {
			if (!args[1])
				goto argerr;
			outformat = str2fmt(*++args);
		} else if (!strcmp(*args, "-out")) {
			if (!args[1])
				goto argerr;
			outfile = *++args;
		} else if (!strcmp(*args, "-content")) {
			if (!args[1])
				goto argerr;
			contfile = *++args;
		} else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
			continue;
		else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
			badarg = 1;
		args++;
	}

	if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
		BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
		goto argerr;
	}
	if (operation & SMIME_SIGNERS) {
		/* Check to see if any final signer needs to be appended */
		if (keyfile && !signerfile) {
			BIO_puts(bio_err, "Illegal -inkey without -signer\n");
			goto argerr;
		}
		if (signerfile) {
			if (!sksigners)
				sksigners = sk_OPENSSL_STRING_new_null();
			sk_OPENSSL_STRING_push(sksigners, signerfile);
			if (!skkeys)
				skkeys = sk_OPENSSL_STRING_new_null();
			if (!keyfile)
				keyfile = signerfile;
			sk_OPENSSL_STRING_push(skkeys, keyfile);
		}
		if (!sksigners) {
			BIO_printf(bio_err, "No signer certificate specified\n");
			badarg = 1;
		}
		signerfile = NULL;
		keyfile = NULL;
	} else if (operation == SMIME_DECRYPT) {
		if (!recipfile && !keyfile) {
			BIO_printf(bio_err, "No recipient certificate or key specified\n");
			badarg = 1;
		}
	} else if (operation == SMIME_ENCRYPT) {
		if (!*args) {
			BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
			badarg = 1;
		}
	} else if (!operation)
		badarg = 1;

	if (badarg) {
argerr:
		BIO_printf(bio_err, "Usage smime [options] cert.pem ...\n");
		BIO_printf(bio_err, "where options are\n");
		BIO_printf(bio_err, "-encrypt       encrypt message\n");
		BIO_printf(bio_err, "-decrypt       decrypt encrypted message\n");
		BIO_printf(bio_err, "-sign          sign message\n");
		BIO_printf(bio_err, "-verify        verify signed message\n");
		BIO_printf(bio_err, "-pk7out        output PKCS#7 structure\n");
#ifndef OPENSSL_NO_DES
		BIO_printf(bio_err, "-des3          encrypt with triple DES\n");
		BIO_printf(bio_err, "-des           encrypt with DES\n");
#endif
#ifndef OPENSSL_NO_RC2
		BIO_printf(bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
		BIO_printf(bio_err, "-rc2-64        encrypt with RC2-64\n");
		BIO_printf(bio_err, "-rc2-128       encrypt with RC2-128\n");
#endif
#ifndef OPENSSL_NO_AES
		BIO_printf(bio_err, "-aes128, -aes192, -aes256\n");
		BIO_printf(bio_err, "               encrypt PEM output with cbc aes\n");
#endif
#ifndef OPENSSL_NO_CAMELLIA
		BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n");
		BIO_printf(bio_err, "               encrypt PEM output with cbc camellia\n");
#endif
		BIO_printf(bio_err, "-nointern      don't search certificates in message for signer\n");
		BIO_printf(bio_err, "-nosigs        don't verify message signature\n");
		BIO_printf(bio_err, "-noverify      don't verify signers certificate\n");
		BIO_printf(bio_err, "-nocerts       don't include signers certificate when signing\n");
		BIO_printf(bio_err, "-nodetach      use opaque signing\n");
		BIO_printf(bio_err, "-noattr        don't include any signed attributes\n");
		BIO_printf(bio_err, "-binary        don't translate message to text\n");
		BIO_printf(bio_err, "-certfile file other certificates file\n");
		BIO_printf(bio_err, "-signer file   signer certificate file\n");
		BIO_printf(bio_err, "-recip  file   recipient certificate file for decryption\n");
		BIO_printf(bio_err, "-in file       input file\n");
		BIO_printf(bio_err, "-inform arg    input format SMIME (default), PEM or DER\n");
		BIO_printf(bio_err, "-inkey file    input private key (if not signer or recipient)\n");
		BIO_printf(bio_err, "-keyform arg   input private key format (PEM or ENGINE)\n");
		BIO_printf(bio_err, "-out file      output file\n");
		BIO_printf(bio_err, "-outform arg   output format SMIME (default), PEM or DER\n");
		BIO_printf(bio_err, "-content file  supply or override content for detached signature\n");
		BIO_printf(bio_err, "-to addr       to address\n");
		BIO_printf(bio_err, "-from ad       from address\n");
		BIO_printf(bio_err, "-subject s     subject\n");
		BIO_printf(bio_err, "-text          include or delete text MIME headers\n");
		BIO_printf(bio_err, "-CApath dir    trusted certificates directory\n");
		BIO_printf(bio_err, "-CAfile file   trusted certificates file\n");
		BIO_printf(bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
		BIO_printf(bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
#ifndef OPENSSL_NO_ENGINE
		BIO_printf(bio_err, "-engine e      use engine e, possibly a hardware device.\n");
#endif
		BIO_printf(bio_err, "-passin arg    input file pass phrase source\n");
		BIO_printf(bio_err, "cert.pem       recipient certificate(s) for encryption\n");
		goto end;
	}
#ifndef OPENSSL_NO_ENGINE
	e = setup_engine(bio_err, engine, 0);
#endif

	if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
		BIO_printf(bio_err, "Error getting password\n");
		goto end;
	}
	ret = 2;

	if (!(operation & SMIME_SIGNERS))
		flags &= ~PKCS7_DETACHED;

	if (operation & SMIME_OP) {
		if (outformat == FORMAT_ASN1)
			outmode = "wb";
	} else {
		if (flags & PKCS7_BINARY)
			outmode = "wb";
	}

	if (operation & SMIME_IP) {
		if (informat == FORMAT_ASN1)
			inmode = "rb";
	} else {
		if (flags & PKCS7_BINARY)
			inmode = "rb";
	}

	if (operation == SMIME_ENCRYPT) {
		if (!cipher) {
#ifndef OPENSSL_NO_RC2
			cipher = EVP_rc2_40_cbc();
#else
			BIO_printf(bio_err, "No cipher selected\n");
			goto end;
#endif
		}
		encerts = sk_X509_new_null();
		while (*args) {
			if (!(cert = load_cert(bio_err, *args, FORMAT_PEM,
			    NULL, e, "recipient certificate file"))) {
				goto end;
			}
			sk_X509_push(encerts, cert);
			cert = NULL;
			args++;
		}
	}
	if (certfile) {
		if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL,
			    e, "certificate file"))) {
			ERR_print_errors(bio_err);
			goto end;
		}
	}
	if (recipfile && (operation == SMIME_DECRYPT)) {
		if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL,
			    e, "recipient certificate file"))) {
			ERR_print_errors(bio_err);
			goto end;
		}
	}
	if (operation == SMIME_DECRYPT) {
		if (!keyfile)
			keyfile = recipfile;
	} else if (operation == SMIME_SIGN) {
		if (!keyfile)
			keyfile = signerfile;
	} else
		keyfile = NULL;

	if (keyfile) {
		key = load_key(bio_err, keyfile, keyform, 0, passin, e,
		    "signing key file");
		if (!key)
			goto end;
	}
	if (infile) {
		if (!(in = BIO_new_file(infile, inmode))) {
			BIO_printf(bio_err,
			    "Can't open input file %s\n", infile);
			goto end;
		}
	} else
		in = BIO_new_fp(stdin, BIO_NOCLOSE);

	if (operation & SMIME_IP) {
		if (informat == FORMAT_SMIME)
			p7 = SMIME_read_PKCS7(in, &indata);
		else if (informat == FORMAT_PEM)
			p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
		else if (informat == FORMAT_ASN1)
			p7 = d2i_PKCS7_bio(in, NULL);
		else {
			BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
			goto end;
		}

		if (!p7) {
			BIO_printf(bio_err, "Error reading S/MIME message\n");
			goto end;
		}
		if (contfile) {
			BIO_free(indata);
			if (!(indata = BIO_new_file(contfile, "rb"))) {
				BIO_printf(bio_err, "Can't read content file %s\n", contfile);
				goto end;
			}
		}
	}
	if (outfile) {
		if (!(out = BIO_new_file(outfile, outmode))) {
			BIO_printf(bio_err,
			    "Can't open output file %s\n", outfile);
			goto end;
		}
	} else {
		out = BIO_new_fp(stdout, BIO_NOCLOSE);
	}

	if (operation == SMIME_VERIFY) {
		if (!(store = setup_verify(bio_err, CAfile, CApath)))
			goto end;
		X509_STORE_set_verify_cb(store, smime_cb);
		if (vpm)
			X509_STORE_set1_param(store, vpm);
	}
	ret = 3;

	if (operation == SMIME_ENCRYPT) {
		if (indef)
			flags |= PKCS7_STREAM;
		p7 = PKCS7_encrypt(encerts, in, cipher, flags);
	} else if (operation & SMIME_SIGNERS) {
		int i;
		/*
		 * If detached data content we only enable streaming if
		 * S/MIME output format.
		 */
		if (operation == SMIME_SIGN) {
			if (flags & PKCS7_DETACHED) {
				if (outformat == FORMAT_SMIME)
					flags |= PKCS7_STREAM;
			} else if (indef)
				flags |= PKCS7_STREAM;
			flags |= PKCS7_PARTIAL;
			p7 = PKCS7_sign(NULL, NULL, other, in, flags);
			if (!p7)
				goto end;
		} else
			flags |= PKCS7_REUSE_DIGEST;
		for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
			signerfile = sk_OPENSSL_STRING_value(sksigners, i);
			keyfile = sk_OPENSSL_STRING_value(skkeys, i);
			signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
			    e, "signer certificate");
			if (!signer)
				goto end;
			key = load_key(bio_err, keyfile, keyform, 0, passin, e,
			    "signing key file");
			if (!key)
				goto end;
			if (!PKCS7_sign_add_signer(p7, signer, key,
				sign_md, flags))
				goto end;
			X509_free(signer);
			signer = NULL;
			EVP_PKEY_free(key);
			key = NULL;
		}
		/* If not streaming or resigning finalize structure */
		if ((operation == SMIME_SIGN) && !(flags & PKCS7_STREAM)) {
			if (!PKCS7_final(p7, in, flags))
				goto end;
		}
	}
	if (!p7) {
		BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
		goto end;
	}
	ret = 4;
	if (operation == SMIME_DECRYPT) {
		if (!PKCS7_decrypt(p7, key, recip, out, flags)) {
			BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
			goto end;
		}
	} else if (operation == SMIME_VERIFY) {
		STACK_OF(X509) * signers;
		if (PKCS7_verify(p7, other, store, indata, out, flags))
			BIO_printf(bio_err, "Verification successful\n");
		else {
			BIO_printf(bio_err, "Verification failure\n");
			goto end;
		}
		signers = PKCS7_get0_signers(p7, other, flags);
		if (!save_certs(signerfile, signers)) {
			BIO_printf(bio_err, "Error writing signers to %s\n",
			    signerfile);
			ret = 5;
			goto end;
		}
		sk_X509_free(signers);
	} else if (operation == SMIME_PK7OUT)
		PEM_write_bio_PKCS7(out, p7);
	else {
		if (to)
			BIO_printf(out, "To: %s\n", to);
		if (from)
			BIO_printf(out, "From: %s\n", from);
		if (subject)
			BIO_printf(out, "Subject: %s\n", subject);
		if (outformat == FORMAT_SMIME) {
			if (operation == SMIME_RESIGN)
				SMIME_write_PKCS7(out, p7, indata, flags);
			else
				SMIME_write_PKCS7(out, p7, in, flags);
		} else if (outformat == FORMAT_PEM)
			PEM_write_bio_PKCS7_stream(out, p7, in, flags);
		else if (outformat == FORMAT_ASN1)
			i2d_PKCS7_bio_stream(out, p7, in, flags);
		else {
			BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
			goto end;
		}
	}
	ret = 0;
end:
	if (ret)
		ERR_print_errors(bio_err);
	sk_X509_pop_free(encerts, X509_free);
	sk_X509_pop_free(other, X509_free);
	if (vpm)
		X509_VERIFY_PARAM_free(vpm);
	if (sksigners)
		sk_OPENSSL_STRING_free(sksigners);
	if (skkeys)
		sk_OPENSSL_STRING_free(skkeys);
	X509_STORE_free(store);
	X509_free(cert);
	X509_free(recip);
	X509_free(signer);
	EVP_PKEY_free(key);
	PKCS7_free(p7);
	BIO_free(in);
	BIO_free(indata);
	BIO_free_all(out);
	free(passin);

	return (ret);
}
示例#16
0
bool Pkcs7SignedData::verify(bool checkSignerCert, vector<Certificate> trustedCerts, CertPathValidatorResult **cpvr, vector<ValidationFlags> vflags)
{
	BIO *p7bio;
	bool ret;
	int rc;
	int i;
	int flags = 0;	
	X509_STORE *store = NULL;
	STACK_OF(X509) *certs = NULL;

	OpenSSL_add_all_algorithms();
	ERR_load_crypto_strings();
	
	if(checkSignerCert)
	{
		 
		i=OBJ_obj2nid(this->pkcs7->type);
		switch (i)
		{
			case NID_pkcs7_signed:
				certs = this->pkcs7->d.sign->cert;
				break;
		
			case NID_pkcs7_signedAndEnveloped:
				certs = this->pkcs7->d.signed_and_enveloped->cert;
				break;
		
			default:
				throw Pkcs7Exception(Pkcs7Exception::INVALID_TYPE, "Pkcs7SignedData::verify");				
		}
						
		//instancia store de certificados
		if(!(store = X509_STORE_new()))
		{
			throw Pkcs7Exception(Pkcs7Exception::INTERNAL_ERROR, "Pkcs7SignedData::verify");
		}
		
		//define funcao de callback
		X509_STORE_set_verify_cb_func(store, Pkcs7SignedData::callback);
		
		//define certificados confiaveis
		for(unsigned int i = 0 ;  i < trustedCerts.size(); i++)
		{
			X509_STORE_add_cert(store, trustedCerts.at(i).getX509());
		}				
		
		//define flags
		for(unsigned int i = 0 ; i < vflags.size() ; i++)
		{
			switch(vflags.at(i))
			{
				case CRL_CHECK:
					X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK);
					break;
				
				case CRL_CHECK_ALL:
					/*precisa por CRL_CHECK tambem, caso contrario o openssl nao verifica CRL*/
					X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK);
					X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK_ALL);
					break;
			}
		}
		
/*		if( (sk_X509_CRL_num(this->pkcs7->d.sign->crl) > 0) || 
				(sk_X509_CRL_num(this->pkcs7->d.signed_and_enveloped->crl) > 0 ))
		{
			//X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL); //obriga a haver uma crl para cada nivel da cadeia de certificacao
			X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK);
		}
*/	
	}
	else
	{
		flags = PKCS7_NOVERIFY;
	}
	
	p7bio = PKCS7_dataInit(this->pkcs7, NULL);
	
	rc = PKCS7_verify(this->pkcs7, certs, store, p7bio, NULL, flags);
	if (rc == 1)
	{
		ret = true;
	}
	else
	{
		//this case can be a error 
		ret = false;
		
		if(cpvr)
		{
			*cpvr = new CertPathValidatorResult(Pkcs7SignedData::cpvr);
		}
	}
	
	/*desaloca estruturas*/
	BIO_free(p7bio);
	X509_STORE_free(store);
	
	return ret;
}
示例#17
0
int
main(int argc, char **argv)
{
	BIO *bio_in, *bio_content, *bio_out, *bio_cert, *bio_pkey;
	STACK_OF(X509) *certs;
	const EVP_CIPHER *cipher;
	EVP_PKEY *pkey;
	X509_STORE *store;
	X509 *cert;
	PKCS7 *p7;
	size_t len;
	char *out;
	int flags;

	ERR_load_crypto_strings();
	OpenSSL_add_all_algorithms();

	/*
	 * A bunch of setup...
	 */
	cipher = EVP_aes_256_cbc();
	if (cipher == NULL)
		fatal("cipher");

	certs = sk_X509_new_null();
	if (certs == NULL)
		fatal("sk_X509_new_null");

	bio_cert = BIO_new_mem_buf((char *)certificate, sizeof(certificate));
	if (bio_cert == NULL)
		fatal("BIO_new_mem_buf certificate");

	cert = PEM_read_bio_X509_AUX(bio_cert, NULL, NULL, NULL);
	if (cert == NULL)
		fatal("PEM_read_bio_X509_AUX");
	sk_X509_push(certs, cert);

	store = X509_STORE_new();
	if (store == NULL)
		fatal("X509_STORE_new");
	X509_STORE_set_verify_cb(store, x509_store_callback);

	bio_pkey = BIO_new_mem_buf((char *)private_key, sizeof(private_key));
	if (bio_pkey == NULL)
		fatal("BIO_new_mem_buf private_key");

	pkey = PEM_read_bio_PrivateKey(bio_pkey, NULL, NULL, NULL);
	if (pkey == NULL)
		fatal("PEM_read_bio_PrivateKey");

	bio_content = BIO_new_mem_buf((char *)message, sizeof(message));
	if (bio_content == NULL)
		fatal("BIO_new_mem_buf message");

	/*
	 * Encrypt and then decrypt.
	 */
	if (BIO_reset(bio_content) != 1)
		fatal("BIO_reset");
	bio_out = BIO_new(BIO_s_mem());
	if (bio_out == NULL)
		fatal("BIO_new");

	p7 = PKCS7_encrypt(certs, bio_content, cipher, 0);
	if (p7 == NULL)
		fatal("PKCS7_encrypt");
	if (PEM_write_bio_PKCS7(bio_out, p7) != 1)
		fatal("PEM_write_bio_PKCS7");
	PKCS7_free(p7);

	bio_in = bio_out;
	bio_out = BIO_new(BIO_s_mem());
	if (bio_out == NULL)
		fatal("BIO_new");

	p7 = PEM_read_bio_PKCS7(bio_in, NULL, NULL, NULL);
	if (p7 == NULL)
		fatal("PEM_read_bio_PKCS7");
	if (PKCS7_decrypt(p7, pkey, cert, bio_out, 0) != 1)
		fatal("PKCS7_decrypt");

	len = BIO_get_mem_data(bio_out, &out);
	message_compare(out, len);

	BIO_free(bio_out);

	/*
	 * Sign and then verify.
	 */
	if (BIO_reset(bio_content) != 1)
		fatal("BIO_reset");
	bio_out = BIO_new(BIO_s_mem());
	if (bio_out == NULL)
		fatal("BIO_new");

	p7 = PKCS7_sign(cert, pkey, certs, bio_content, 0);
	if (p7 == NULL)
		fatal("PKCS7_sign");
	if (PEM_write_bio_PKCS7(bio_out, p7) != 1)
		fatal("PEM_write_bio_PKCS7");
	PKCS7_free(p7);

	bio_in = bio_out;
	bio_out = BIO_new(BIO_s_mem());
	if (bio_out == NULL)
		fatal("BIO_new");

	p7 = PEM_read_bio_PKCS7(bio_in, NULL, NULL, NULL);
	if (p7 == NULL)
		fatal("PEM_read_bio_PKCS7");
	if (PKCS7_verify(p7, certs, store, NULL, bio_out, 0) != 1)
		fatal("PKCS7_verify");

	len = BIO_get_mem_data(bio_out, &out);
	message_compare(out, len);

	BIO_free(bio_in);
	BIO_free(bio_out);

	/*
	 * Sign and then verify with a detached signature.
	 */
	if (BIO_reset(bio_content) != 1)
		fatal("BIO_reset");
	bio_out = BIO_new(BIO_s_mem());
	if (bio_out == NULL)
		fatal("BIO_new");

	flags = PKCS7_DETACHED|PKCS7_PARTIAL;
	p7 = PKCS7_sign(NULL, NULL, NULL, bio_content, flags);
	if (p7 == NULL)
		fatal("PKCS7_sign");
	if (PKCS7_sign_add_signer(p7, cert, pkey, NULL, flags) == NULL)
		fatal("PKCS7_sign_add_signer");
	if (PKCS7_final(p7, bio_content, flags) != 1)
		fatal("PKCS7_final");
	if (PEM_write_bio_PKCS7(bio_out, p7) != 1)
		fatal("PEM_write_bio_PKCS7");
	PKCS7_free(p7);

	/* bio_out contains only the detached signature. */
	bio_in = bio_out;
	if (BIO_reset(bio_content) != 1)
		fatal("BIO_reset");

	bio_out = BIO_new(BIO_s_mem());
	if (bio_out == NULL)
		fatal("BIO_new");

	p7 = PEM_read_bio_PKCS7(bio_in, NULL, NULL, NULL);
	if (p7 == NULL)
		fatal("PEM_read_bio_PKCS7");
	if (PKCS7_verify(p7, certs, store, bio_content, bio_out, flags) != 1)
		fatal("PKCS7_verify");

	len = BIO_get_mem_data(bio_out, &out);
	message_compare(out, len);

	BIO_free(bio_in);
	BIO_free(bio_out);
	BIO_free(bio_content);

	return 0;
}
示例#18
0
int main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL, *tbio = NULL, *cont = NULL;
    X509_STORE *st = NULL;
    X509 *cacert = NULL;
    PKCS7 *p7 = NULL;

    int ret = 1;

    OpenSSL_add_all_algorithms();
    ERR_load_crypto_strings();

    /* Set up trusted CA certificate store */

    st = X509_STORE_new();

    /* Read in signer certificate and private key */
    tbio = BIO_new_file("cacert.pem", "r");

    if (!tbio)
        goto err;

    cacert = PEM_read_bio_X509(tbio, NULL, 0, NULL);

    if (!cacert)
        goto err;

    if (!X509_STORE_add_cert(st, cacert))
        goto err;

    /* Open content being signed */

    in = BIO_new_file("smout.txt", "r");

    if (!in)
        goto err;

    /* Sign content */
    p7 = SMIME_read_PKCS7(in, &cont);

    if (!p7)
        goto err;

    /* File to output verified content to */
    out = BIO_new_file("smver.txt", "w");
    if (!out)
        goto err;

    if (!PKCS7_verify(p7, NULL, st, cont, out, 0)) {
        fprintf(stderr, "Verification Failure\n");
        goto err;
    }

    fprintf(stderr, "Verification Successful\n");

    ret = 0;

 err:
    if (ret) {
        fprintf(stderr, "Error Verifying Data\n");
        ERR_print_errors_fp(stderr);
    }
    PKCS7_free(p7);
    if (cacert)
        X509_free(cacert);
    BIO_free(in);
    BIO_free(out);
    BIO_free(tbio);
    return ret;
}
示例#19
0
static int rtCrPkcs7VerifySignedDataUsingOpenSsl(PCRTCRPKCS7CONTENTINFO pContentInfo, uint32_t fFlags,
                                                 RTCRSTORE hAdditionalCerts, RTCRSTORE hTrustedCerts,
                                                 void const *pvContent, uint32_t cbContent, PRTERRINFO pErrInfo)
{
    /*
     * Verify using OpenSSL.
     */
    int rcOssl;
    unsigned char const *pbRawContent = RTASN1CORE_GET_RAW_ASN1_PTR(&pContentInfo->SeqCore.Asn1Core);
    PKCS7 *pOsslPkcs7 = NULL;
    if (d2i_PKCS7(&pOsslPkcs7, &pbRawContent, RTASN1CORE_GET_RAW_ASN1_SIZE(&pContentInfo->SeqCore.Asn1Core)) == pOsslPkcs7)
    {
        STACK_OF(X509) *pAddCerts = NULL;
        if (hAdditionalCerts != NIL_RTCRSTORE)
            rcOssl = RTCrStoreConvertToOpenSslCertStack(hAdditionalCerts, 0, (void **)&pAddCerts);
        else
        {
            pAddCerts = sk_X509_new_null();
            rcOssl = RT_LIKELY(pAddCerts != NULL) ? VINF_SUCCESS : VERR_NO_MEMORY;
        }
        if (RT_SUCCESS(rcOssl))
        {
            PCRTCRPKCS7SETOFCERTS pCerts = &pContentInfo->u.pSignedData->Certificates;
            for (uint32_t i = 0; i < pCerts->cItems; i++)
                if (pCerts->paItems[i].enmChoice == RTCRPKCS7CERTCHOICE_X509)
                    rtCrOpenSslAddX509CertToStack(pAddCerts, pCerts->paItems[i].u.pX509Cert);


            X509_STORE *pTrustedCerts = NULL;
            if (hTrustedCerts != NIL_RTCRSTORE)
                rcOssl = RTCrStoreConvertToOpenSslCertStore(hTrustedCerts, 0, (void **)&pTrustedCerts);
            if (RT_SUCCESS(rcOssl))
            {
                rtCrOpenSslInit();

                BIO *pBioContent = BIO_new_mem_buf((void *)pvContent, cbContent);
                if (pBioContent)
                {
                    uint32_t fOsslFlags = PKCS7_NOCHAIN;
                    fOsslFlags |= PKCS7_NOVERIFY; // temporary hack.
                    if (PKCS7_verify(pOsslPkcs7, pAddCerts, pTrustedCerts, pBioContent, NULL /*out*/, fOsslFlags))
                        rcOssl = VINF_SUCCESS;
                    else
                    {
                        rcOssl = RTErrInfoSet(pErrInfo, VERR_CR_PKCS7_OSSL_VERIFY_FAILED, "PKCS7_verify failed: ");
                        if (pErrInfo)
                            ERR_print_errors_cb(rtCrOpenSslErrInfoCallback, pErrInfo);
                    }
                    BIO_free(pBioContent);
                }
                if (pTrustedCerts)
                    X509_STORE_free(pTrustedCerts);
            }
            else
                rcOssl = RTErrInfoSet(pErrInfo, rcOssl, "RTCrStoreConvertToOpenSslCertStack failed");
            if (pAddCerts)
                sk_X509_pop_free(pAddCerts, X509_free);
        }
        else
            rcOssl = RTErrInfoSet(pErrInfo, rcOssl, "RTCrStoreConvertToOpenSslCertStack failed");
        PKCS7_free(pOsslPkcs7);
    }
    else
        rcOssl = RTErrInfoSet(pErrInfo, VERR_CR_PKCS7_OSSL_D2I_FAILED, "d2i_PKCS7 failed");

    return rcOssl;
}