static int PKCS7_bio_add_digest(BIO **pbio, X509_ALGOR *alg)
{
BIO *btmp;
const EVP_MD *md;
if ((btmp = BIO_new(BIO_f_md())) == NULL) {
PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, ERR_R_BIO_LIB);
goto err;
}
md = EVP_get_digestbyobj(alg->algorithm);
if (md == NULL) {
PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, PKCS7_R_UNKNOWN_DIGEST_TYPE);
goto err;
}
BIO_set_md(btmp, md);
if (*pbio == NULL)
*pbio = btmp;
else if (!BIO_push(*pbio, btmp)) {
PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, ERR_R_BIO_LIB);
goto err;
}
btmp = NULL;
return 1;
err:
if (btmp)
BIO_free(btmp);
return 0;
}
int main(int argc, char *argv[]) {
BIO *bio_stdin, *bio_md5;
unsigned char buf[512], mdBuf[EVP_MAX_MD_SIZE];
int i, mdLength;
/* Create a BIO objects */
bio_stdin = BIO_new_fp(stdin, BIO_NOCLOSE);
/* Create a base64 filter and connect it to the bio_stdin */
bio_md5 = BIO_new(BIO_f_md());
BIO_set_md(bio_md5, EVP_md5());
bio_stdin = BIO_push(bio_md5, bio_stdin);
/* Read from bio_stdin, and compute the hash as a side effect. */
while(BIO_read(bio_stdin, buf, 512) > 0) {
} /* end while */
/* Now extract the hash via BIO_gets (which is kinda odd really). */
mdLength = BIO_gets(bio_md5, (char *)mdBuf, EVP_MAX_MD_SIZE);
for(i=0; i<mdLength; i++)
printf("%02x", (unsigned int)(mdBuf[i]));
printf("\n");
BIO_free_all(bio_stdin);
return 0;
} /* end func main */
BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm)
{
BIO *mdbio = NULL;
ASN1_OBJECT *digestoid;
const EVP_MD *digest;
X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
digest = EVP_get_digestbyobj(digestoid);
if (!digest)
{
CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
CMS_R_UNKNOWN_DIGEST_ALGORIHM);
goto err;
}
mdbio = BIO_new(BIO_f_md());
if (!mdbio || !BIO_set_md(mdbio, digest))
{
CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
CMS_R_MD_BIO_INIT_ERROR);
goto err;
}
return mdbio;
err:
if (mdbio)
BIO_free(mdbio);
return NULL;
}
void openssl_bioBS_md5()
{
int size, len;
BIO *fbio, *mbio;
char buf[MAX1_LEN];
fbio = BIO_new_file("/tmp/test.txt", "rb");
mbio = BIO_new(BIO_f_md());
BIO_set_md(mbio, EVP_sha1());
fbio = BIO_push(mbio, fbio);
mbio = BIO_new(BIO_f_md());
BIO_set_md(mbio, EVP_md5());
fbio = BIO_push(mbio, fbio);
printf("\nBIO_MD5(%s) = ", "/tmp/test.txt");
while ((len = BIO_read(fbio, buf, sizeof(buf) - 1)) > 0) {
for (size = 0; size < len; size++)
printf("%.02x", buf[size]);
}
printf("\n");
BIO_free(mbio);
}
//BIO调用方式
void mite_MD5_BIOCal(char *buffer,unsigned long length,unsigned char *md5)
{
BIO* bio_null;
BIO* bio_md;
bio_null = BIO_new(BIO_s_null());
bio_md = BIO_new(BIO_f_md());
BIO_set_md(bio_md,EVP_md5());
bio_md = BIO_push(bio_md,bio_null);
BIO_write(bio_md,buffer,length);
BIO_flush(bio_md);
//int len = BIO_gets(bio_md,(char *)md5,EVP_MAX_MD_SIZE);
//数据经过这种BIO不会被修改也不会被保留，只有摘要值是保留的
//所以需要用BIO_gets而不是BIO_read获取数据
BIO_gets(bio_md,(char *)md5,EVP_MAX_MD_SIZE);
BIO_free_all(bio_md);
//BIO_free_all(bio_null); 段错误
}
int dgst_main(int argc, char **argv)
{
BIO *in = NULL, *inp, *bmd = NULL, *out = NULL;
ENGINE *e = NULL, *impl = NULL;
EVP_PKEY *sigkey = NULL;
STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL;
char *hmac_key = NULL;
char *mac_name = NULL;
char *passinarg = NULL, *passin = NULL;
const EVP_MD *md = NULL, *m;
const char *outfile = NULL, *keyfile = NULL, *prog = NULL;
const char *sigfile = NULL, *randfile = NULL;
OPTION_CHOICE o;
int separator = 0, debug = 0, keyform = FORMAT_PEM, siglen = 0;
int i, ret = 1, out_bin = -1, want_pub = 0, do_verify =
0, non_fips_allow = 0;
unsigned char *buf = NULL, *sigbuf = NULL;
int engine_impl = 0;
prog = opt_progname(argv[0]);
buf = app_malloc(BUFSIZE, "I/O buffer");
md = EVP_get_digestbyname(prog);
prog = opt_init(argc, argv, dgst_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(dgst_options);
ret = 0;
goto end;
case OPT_C:
separator = 1;
break;
case OPT_R:
separator = 2;
break;
case OPT_RAND:
randfile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_SIGN:
keyfile = opt_arg();
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_VERIFY:
keyfile = opt_arg();
want_pub = do_verify = 1;
break;
case OPT_PRVERIFY:
keyfile = opt_arg();
do_verify = 1;
break;
case OPT_SIGNATURE:
sigfile = opt_arg();
break;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
goto opthelp;
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_ENGINE_IMPL:
engine_impl = 1;
break;
case OPT_HEX:
out_bin = 0;
break;
case OPT_BINARY:
out_bin = 1;
break;
case OPT_DEBUG:
debug = 1;
break;
case OPT_FIPS_FINGERPRINT:
hmac_key = "etaonrishdlcupfm";
break;
case OPT_NON_FIPS_ALLOW:
non_fips_allow = 1;
break;
case OPT_HMAC:
hmac_key = opt_arg();
break;
case OPT_MAC:
mac_name = opt_arg();
break;
case OPT_SIGOPT:
if (!sigopts)
sigopts = sk_OPENSSL_STRING_new_null();
if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
goto opthelp;
break;
case OPT_MACOPT:
if (!macopts)
macopts = sk_OPENSSL_STRING_new_null();
if (!macopts || !sk_OPENSSL_STRING_push(macopts, opt_arg()))
goto opthelp;
break;
case OPT_DIGEST:
if (!opt_md(opt_unknown(), &m))
goto opthelp;
md = m;
break;
}
}
argc = opt_num_rest();
argv = opt_rest();
if (do_verify && !sigfile) {
BIO_printf(bio_err,
"No signature to verify: use the -signature option\n");
goto end;
}
if (engine_impl)
impl = e;
in = BIO_new(BIO_s_file());
bmd = BIO_new(BIO_f_md());
if ((in == NULL) || (bmd == NULL)) {
ERR_print_errors(bio_err);
goto end;
}
if (debug) {
BIO_set_callback(in, BIO_debug_callback);
/* needed for windows 3.1 */
BIO_set_callback_arg(in, (char *)bio_err);
}
if (!app_passwd(passinarg, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (out_bin == -1) {
if (keyfile)
out_bin = 1;
else
out_bin = 0;
}
if (randfile)
app_RAND_load_file(randfile, 0);
out = bio_open_default(outfile, 'w', out_bin ? FORMAT_BINARY : FORMAT_TEXT);
if (out == NULL)
goto end;
if ((! !mac_name + ! !keyfile + ! !hmac_key) > 1) {
BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
goto end;
}
if (keyfile) {
if (want_pub)
sigkey = load_pubkey(keyfile, keyform, 0, NULL, e, "key file");
else
sigkey = load_key(keyfile, keyform, 0, passin, e, "key file");
if (!sigkey) {
/*
* load_[pub]key() has already printed an appropriate message
*/
goto end;
}
}
if (mac_name) {
EVP_PKEY_CTX *mac_ctx = NULL;
int r = 0;
if (!init_gen_str(&mac_ctx, mac_name, impl, 0))
goto mac_end;
if (macopts) {
char *macopt;
for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) {
macopt = sk_OPENSSL_STRING_value(macopts, i);
if (pkey_ctrl_string(mac_ctx, macopt) <= 0) {
BIO_printf(bio_err,
"MAC parameter error \"%s\"\n", macopt);
ERR_print_errors(bio_err);
goto mac_end;
}
}
}
if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) {
BIO_puts(bio_err, "Error generating key\n");
ERR_print_errors(bio_err);
goto mac_end;
}
r = 1;
mac_end:
EVP_PKEY_CTX_free(mac_ctx);
if (r == 0)
goto end;
}
if (non_fips_allow) {
EVP_MD_CTX *md_ctx;
BIO_get_md_ctx(bmd, &md_ctx);
EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
}
if (hmac_key) {
sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, impl,
(unsigned char *)hmac_key, -1);
if (!sigkey)
goto end;
}
if (sigkey) {
EVP_MD_CTX *mctx = NULL;
EVP_PKEY_CTX *pctx = NULL;
int r;
if (!BIO_get_md_ctx(bmd, &mctx)) {
BIO_printf(bio_err, "Error getting context\n");
ERR_print_errors(bio_err);
goto end;
}
if (do_verify)
r = EVP_DigestVerifyInit(mctx, &pctx, md, impl, sigkey);
else
r = EVP_DigestSignInit(mctx, &pctx, md, impl, sigkey);
if (!r) {
BIO_printf(bio_err, "Error setting context\n");
ERR_print_errors(bio_err);
goto end;
}
if (sigopts) {
char *sigopt;
for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
sigopt = sk_OPENSSL_STRING_value(sigopts, i);
if (pkey_ctrl_string(pctx, sigopt) <= 0) {
BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
ERR_print_errors(bio_err);
goto end;
}
}
}
}
/* we use md as a filter, reading from 'in' */
else {
EVP_MD_CTX *mctx = NULL;
if (!BIO_get_md_ctx(bmd, &mctx)) {
BIO_printf(bio_err, "Error getting context\n");
ERR_print_errors(bio_err);
goto end;
}
if (md == NULL)
md = EVP_md5();
if (!EVP_DigestInit_ex(mctx, md, impl)) {
BIO_printf(bio_err, "Error setting digest\n");
ERR_print_errors(bio_err);
goto end;
}
}
if (sigfile && sigkey) {
BIO *sigbio = BIO_new_file(sigfile, "rb");
if (!sigbio) {
BIO_printf(bio_err, "Error opening signature file %s\n", sigfile);
ERR_print_errors(bio_err);
goto end;
}
siglen = EVP_PKEY_size(sigkey);
sigbuf = app_malloc(siglen, "signature buffer");
siglen = BIO_read(sigbio, sigbuf, siglen);
BIO_free(sigbio);
if (siglen <= 0) {
BIO_printf(bio_err, "Error reading signature file %s\n", sigfile);
ERR_print_errors(bio_err);
goto end;
}
}
inp = BIO_push(bmd, in);
if (md == NULL) {
EVP_MD_CTX *tctx;
BIO_get_md_ctx(bmd, &tctx);
md = EVP_MD_CTX_md(tctx);
}
if (argc == 0) {
BIO_set_fp(in, stdin, BIO_NOCLOSE);
ret = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
siglen, NULL, NULL, "stdin", bmd);
} else {
const char *md_name = NULL, *sig_name = NULL;
if (!out_bin) {
if (sigkey) {
const EVP_PKEY_ASN1_METHOD *ameth;
ameth = EVP_PKEY_get0_asn1(sigkey);
if (ameth)
EVP_PKEY_asn1_get0_info(NULL, NULL,
NULL, NULL, &sig_name, ameth);
}
if (md)
md_name = EVP_MD_name(md);
}
ret = 0;
for (i = 0; i < argc; i++) {
int r;
if (BIO_read_filename(in, argv[i]) <= 0) {
perror(argv[i]);
ret++;
continue;
} else
r = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
siglen, sig_name, md_name, argv[i], bmd);
if (r)
ret = r;
(void)BIO_reset(bmd);
}
}
end:
OPENSSL_clear_free(buf, BUFSIZE);
BIO_free(in);
OPENSSL_free(passin);
BIO_free_all(out);
EVP_PKEY_free(sigkey);
sk_OPENSSL_STRING_free(sigopts);
sk_OPENSSL_STRING_free(macopts);
OPENSSL_free(sigbuf);
BIO_free(bmd);
return (ret);
}
/* int */
BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
{
int i, j;
BIO *out = NULL, *btmp = NULL, *etmp = NULL, *bio = NULL;
X509_ALGOR *xa;
ASN1_OCTET_STRING *data_body = NULL;
const EVP_MD *evp_md;
const EVP_CIPHER *evp_cipher = NULL;
EVP_CIPHER_CTX *evp_ctx = NULL;
X509_ALGOR *enc_alg = NULL;
STACK_OF(X509_ALGOR) *md_sk = NULL;
STACK_OF(PKCS7_RECIP_INFO) *rsk = NULL;
PKCS7_RECIP_INFO *ri = NULL;
unsigned char *ek = NULL, *tkey = NULL;
int eklen = 0, tkeylen = 0;
if (p7 == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_INVALID_NULL_POINTER);
return NULL;
}
if (p7->d.ptr == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
return NULL;
}
i = OBJ_obj2nid(p7->type);
p7->state = PKCS7_S_HEADER;
switch (i) {
case NID_pkcs7_signed:
data_body = PKCS7_get_octet_string(p7->d.sign->contents);
if (!PKCS7_is_detached(p7) && data_body == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_INVALID_SIGNED_DATA_TYPE);
goto err;
}
md_sk = p7->d.sign->md_algs;
break;
case NID_pkcs7_signedAndEnveloped:
rsk = p7->d.signed_and_enveloped->recipientinfo;
md_sk = p7->d.signed_and_enveloped->md_algs;
data_body = p7->d.signed_and_enveloped->enc_data->enc_data;
enc_alg = p7->d.signed_and_enveloped->enc_data->algorithm;
evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
goto err;
}
break;
case NID_pkcs7_enveloped:
rsk = p7->d.enveloped->recipientinfo;
enc_alg = p7->d.enveloped->enc_data->algorithm;
data_body = p7->d.enveloped->enc_data->enc_data;
evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
goto err;
}
break;
default:
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
goto err;
}
/* We will be checking the signature */
if (md_sk != NULL) {
for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) {
xa = sk_X509_ALGOR_value(md_sk, i);
if ((btmp = BIO_new(BIO_f_md())) == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, ERR_R_BIO_LIB);
goto err;
}
j = OBJ_obj2nid(xa->algorithm);
evp_md = EVP_get_digestbynid(j);
if (evp_md == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_UNKNOWN_DIGEST_TYPE);
goto err;
}
BIO_set_md(btmp, evp_md);
if (out == NULL)
out = btmp;
else
BIO_push(out, btmp);
btmp = NULL;
}
}
if (evp_cipher != NULL) {
#if 0
unsigned char key[EVP_MAX_KEY_LENGTH];
unsigned char iv[EVP_MAX_IV_LENGTH];
unsigned char *p;
int keylen, ivlen;
int max;
X509_OBJECT ret;
#endif
if ((etmp = BIO_new(BIO_f_cipher())) == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, ERR_R_BIO_LIB);
goto err;
}
/*
* It was encrypted, we need to decrypt the secret key with the
* private key
*/
/*
* Find the recipientInfo which matches the passed certificate (if
* any)
*/
if (pcert) {
for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
if (!pkcs7_cmp_ri(ri, pcert))
break;
ri = NULL;
}
if (ri == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
goto err;
}
}
/* If we haven't got a certificate try each ri in turn */
if (pcert == NULL) {
/*
* Always attempt to decrypt all rinfo even after sucess as a
* defence against MMA timing attacks.
*/
for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey) < 0)
goto err;
ERR_clear_error();
}
} else {
/* Only exit on fatal errors, not decrypt failure */
if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey) < 0)
goto err;
ERR_clear_error();
}
evp_ctx = NULL;
BIO_get_cipher_ctx(etmp, &evp_ctx);
if (EVP_CipherInit_ex(evp_ctx, evp_cipher, NULL, NULL, NULL, 0) <= 0)
goto err;
if (EVP_CIPHER_asn1_to_param(evp_ctx, enc_alg->parameter) < 0)
goto err;
/* Generate random key as MMA defence */
tkeylen = EVP_CIPHER_CTX_key_length(evp_ctx);
tkey = OPENSSL_malloc(tkeylen);
if (!tkey)
goto err;
if (EVP_CIPHER_CTX_rand_key(evp_ctx, tkey) <= 0)
goto err;
if (ek == NULL) {
ek = tkey;
eklen = tkeylen;
tkey = NULL;
}
if (eklen != EVP_CIPHER_CTX_key_length(evp_ctx)) {
/*
* Some S/MIME clients don't use the same key and effective key
* length. The key length is determined by the size of the
* decrypted RSA key.
*/
if (!EVP_CIPHER_CTX_set_key_length(evp_ctx, eklen)) {
/* Use random key as MMA defence */
OPENSSL_cleanse(ek, eklen);
OPENSSL_free(ek);
ek = tkey;
eklen = tkeylen;
tkey = NULL;
}
}
/* Clear errors so we don't leak information useful in MMA */
ERR_clear_error();
if (EVP_CipherInit_ex(evp_ctx, NULL, NULL, ek, NULL, 0) <= 0)
goto err;
if (ek) {
OPENSSL_cleanse(ek, eklen);
OPENSSL_free(ek);
ek = NULL;
}
if (tkey) {
OPENSSL_cleanse(tkey, tkeylen);
OPENSSL_free(tkey);
tkey = NULL;
}
if (out == NULL)
out = etmp;
else
BIO_push(out, etmp);
etmp = NULL;
}
#if 1
if (PKCS7_is_detached(p7) || (in_bio != NULL)) {
bio = in_bio;
} else {
# if 0
bio = BIO_new(BIO_s_mem());
/*
* We need to set this so that when we have read all the data, the
* encrypt BIO, if present, will read EOF and encode the last few
* bytes
*/
BIO_set_mem_eof_return(bio, 0);
if (data_body->length > 0)
BIO_write(bio, (char *)data_body->data, data_body->length);
# else
if (data_body->length > 0)
bio = BIO_new_mem_buf(data_body->data, data_body->length);
else {
bio = BIO_new(BIO_s_mem());
BIO_set_mem_eof_return(bio, 0);
}
if (bio == NULL)
goto err;
# endif
}
BIO_push(out, bio);
bio = NULL;
#endif
if (0) {
err:
if (ek) {
OPENSSL_cleanse(ek, eklen);
OPENSSL_free(ek);
}
if (tkey) {
OPENSSL_cleanse(tkey, tkeylen);
OPENSSL_free(tkey);
}
if (out != NULL)
BIO_free_all(out);
if (btmp != NULL)
BIO_free_all(btmp);
if (etmp != NULL)
BIO_free_all(etmp);
if (bio != NULL)
BIO_free_all(bio);
out = NULL;
}
return (out);
}
int
dgst_main(int argc, char **argv)
{
ENGINE *e = NULL;
unsigned char *buf = NULL;
int i, err = 1;
const EVP_MD *md = NULL, *m;
BIO *in = NULL, *inp;
BIO *bmd = NULL;
BIO *out = NULL;
#define PROG_NAME_SIZE 39
char pname[PROG_NAME_SIZE + 1];
int separator = 0;
int debug = 0;
int keyform = FORMAT_PEM;
const char *outfile = NULL, *keyfile = NULL;
const char *sigfile = NULL;
int out_bin = -1, want_pub = 0, do_verify = 0;
EVP_PKEY *sigkey = NULL;
unsigned char *sigbuf = NULL;
int siglen = 0;
char *passargin = NULL, *passin = NULL;
#ifndef OPENSSL_NO_ENGINE
char *engine = NULL;
#endif
char *hmac_key = NULL;
char *mac_name = NULL;
STACK_OF(OPENSSL_STRING) * sigopts = NULL, *macopts = NULL;
if ((buf = malloc(BUFSIZE)) == NULL) {
BIO_printf(bio_err, "out of memory\n");
goto end;
}
/* first check the program name */
program_name(argv[0], pname, sizeof pname);
md = EVP_get_digestbyname(pname);
argc--;
argv++;
while (argc > 0) {
if ((*argv)[0] != '-')
break;
if (strcmp(*argv, "-c") == 0)
separator = 1;
else if (strcmp(*argv, "-r") == 0)
separator = 2;
else if (strcmp(*argv, "-out") == 0) {
if (--argc < 1)
break;
outfile = *(++argv);
} else if (strcmp(*argv, "-sign") == 0) {
if (--argc < 1)
break;
keyfile = *(++argv);
} else if (!strcmp(*argv, "-passin")) {
if (--argc < 1)
break;
passargin = *++argv;
} else if (strcmp(*argv, "-verify") == 0) {
if (--argc < 1)
break;
keyfile = *(++argv);
want_pub = 1;
do_verify = 1;
} else if (strcmp(*argv, "-prverify") == 0) {
if (--argc < 1)
break;
keyfile = *(++argv);
do_verify = 1;
} else if (strcmp(*argv, "-signature") == 0) {
if (--argc < 1)
break;
sigfile = *(++argv);
} else if (strcmp(*argv, "-keyform") == 0) {
if (--argc < 1)
break;
keyform = str2fmt(*(++argv));
}
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv, "-engine") == 0) {
if (--argc < 1)
break;
engine = *(++argv);
e = setup_engine(bio_err, engine, 0);
}
#endif
else if (strcmp(*argv, "-hex") == 0)
out_bin = 0;
else if (strcmp(*argv, "-binary") == 0)
out_bin = 1;
else if (strcmp(*argv, "-d") == 0)
debug = 1;
else if (!strcmp(*argv, "-hmac")) {
if (--argc < 1)
break;
hmac_key = *++argv;
} else if (!strcmp(*argv, "-mac")) {
if (--argc < 1)
break;
mac_name = *++argv;
} else if (strcmp(*argv, "-sigopt") == 0) {
if (--argc < 1)
break;
if (!sigopts)
sigopts = sk_OPENSSL_STRING_new_null();
if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
break;
} else if (strcmp(*argv, "-macopt") == 0) {
if (--argc < 1)
break;
if (!macopts)
macopts = sk_OPENSSL_STRING_new_null();
if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv)))
break;
} else if ((m = EVP_get_digestbyname(&((*argv)[1]))) != NULL)
md = m;
else
break;
argc--;
argv++;
}
if (do_verify && !sigfile) {
BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
goto end;
}
if ((argc > 0) && (argv[0][0] == '-')) { /* bad option */
BIO_printf(bio_err, "unknown option '%s'\n", *argv);
BIO_printf(bio_err, "options are\n");
BIO_printf(bio_err, "-c to output the digest with separating colons\n");
BIO_printf(bio_err, "-r to output the digest in coreutils format\n");
BIO_printf(bio_err, "-d to output debug info\n");
BIO_printf(bio_err, "-hex output as hex dump\n");
BIO_printf(bio_err, "-binary output in binary form\n");
BIO_printf(bio_err, "-sign file sign digest using private key in file\n");
BIO_printf(bio_err, "-verify file verify a signature using public key in file\n");
BIO_printf(bio_err, "-prverify file verify a signature using private key in file\n");
BIO_printf(bio_err, "-keyform arg key file format (PEM or ENGINE)\n");
BIO_printf(bio_err, "-out filename output to filename rather than stdout\n");
BIO_printf(bio_err, "-signature file signature to verify\n");
BIO_printf(bio_err, "-sigopt nm:v signature parameter\n");
BIO_printf(bio_err, "-hmac key create hashed MAC with key\n");
BIO_printf(bio_err, "-mac algorithm create MAC (not neccessarily HMAC)\n");
BIO_printf(bio_err, "-macopt nm:v MAC algorithm parameters or key\n");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
#endif
EVP_MD_do_all_sorted(list_md_fn, bio_err);
goto end;
}
in = BIO_new(BIO_s_file());
bmd = BIO_new(BIO_f_md());
if (in == NULL || bmd == NULL) {
ERR_print_errors(bio_err);
goto end;
}
if (debug) {
BIO_set_callback(in, BIO_debug_callback);
/* needed for windows 3.1 */
BIO_set_callback_arg(in, (char *) bio_err);
}
if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (out_bin == -1) {
if (keyfile)
out_bin = 1;
else
out_bin = 0;
}
if (outfile) {
if (out_bin)
out = BIO_new_file(outfile, "wb");
else
out = BIO_new_file(outfile, "w");
} else {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
}
if (!out) {
BIO_printf(bio_err, "Error opening output file %s\n",
outfile ? outfile : "(stdout)");
ERR_print_errors(bio_err);
goto end;
}
if ((!!mac_name + !!keyfile + !!hmac_key) > 1) {
BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
goto end;
}
if (keyfile) {
if (want_pub)
sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
e, "key file");
else
sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
e, "key file");
if (!sigkey) {
/*
* load_[pub]key() has already printed an appropriate
* message
*/
goto end;
}
}
if (mac_name) {
EVP_PKEY_CTX *mac_ctx = NULL;
int r = 0;
if (!init_gen_str(bio_err, &mac_ctx, mac_name, e, 0))
goto mac_end;
if (macopts) {
char *macopt;
for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) {
macopt = sk_OPENSSL_STRING_value(macopts, i);
if (pkey_ctrl_string(mac_ctx, macopt) <= 0) {
BIO_printf(bio_err,
"MAC parameter error \"%s\"\n",
macopt);
ERR_print_errors(bio_err);
goto mac_end;
}
}
}
if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) {
BIO_puts(bio_err, "Error generating key\n");
ERR_print_errors(bio_err);
goto mac_end;
}
r = 1;
mac_end:
if (mac_ctx)
EVP_PKEY_CTX_free(mac_ctx);
if (r == 0)
goto end;
}
if (hmac_key) {
sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, e,
(unsigned char *) hmac_key, -1);
if (!sigkey)
goto end;
}
if (sigkey) {
EVP_MD_CTX *mctx = NULL;
EVP_PKEY_CTX *pctx = NULL;
int r;
if (!BIO_get_md_ctx(bmd, &mctx)) {
BIO_printf(bio_err, "Error getting context\n");
ERR_print_errors(bio_err);
goto end;
}
if (do_verify)
r = EVP_DigestVerifyInit(mctx, &pctx, md, NULL, sigkey);
else
r = EVP_DigestSignInit(mctx, &pctx, md, NULL, sigkey);
if (!r) {
BIO_printf(bio_err, "Error setting context\n");
ERR_print_errors(bio_err);
goto end;
}
if (sigopts) {
char *sigopt;
for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
sigopt = sk_OPENSSL_STRING_value(sigopts, i);
if (pkey_ctrl_string(pctx, sigopt) <= 0) {
BIO_printf(bio_err,
"parameter error \"%s\"\n",
sigopt);
ERR_print_errors(bio_err);
goto end;
}
}
}
}
/* we use md as a filter, reading from 'in' */
else {
if (md == NULL)
md = EVP_md5();
if (!BIO_set_md(bmd, md)) {
BIO_printf(bio_err, "Error setting digest %s\n", pname);
ERR_print_errors(bio_err);
goto end;
}
}
if (sigfile && sigkey) {
BIO *sigbio;
siglen = EVP_PKEY_size(sigkey);
sigbuf = malloc(siglen);
if (sigbuf == NULL) {
BIO_printf(bio_err, "out of memory\n");
ERR_print_errors(bio_err);
goto end;
}
sigbio = BIO_new_file(sigfile, "rb");
if (!sigbio) {
BIO_printf(bio_err, "Error opening signature file %s\n",
sigfile);
ERR_print_errors(bio_err);
goto end;
}
siglen = BIO_read(sigbio, sigbuf, siglen);
BIO_free(sigbio);
if (siglen <= 0) {
BIO_printf(bio_err, "Error reading signature file %s\n",
sigfile);
ERR_print_errors(bio_err);
goto end;
}
}
inp = BIO_push(bmd, in);
if (md == NULL) {
EVP_MD_CTX *tctx;
BIO_get_md_ctx(bmd, &tctx);
md = EVP_MD_CTX_md(tctx);
}
if (argc == 0) {
BIO_set_fp(in, stdin, BIO_NOCLOSE);
err = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
siglen, NULL, NULL, "stdin", bmd);
} else {
const char *md_name = NULL, *sig_name = NULL;
if (!out_bin) {
if (sigkey) {
const EVP_PKEY_ASN1_METHOD *ameth;
ameth = EVP_PKEY_get0_asn1(sigkey);
if (ameth)
EVP_PKEY_asn1_get0_info(NULL, NULL,
NULL, NULL, &sig_name, ameth);
}
md_name = EVP_MD_name(md);
}
err = 0;
for (i = 0; i < argc; i++) {
int r;
if (BIO_read_filename(in, argv[i]) <= 0) {
perror(argv[i]);
err++;
continue;
} else {
r = do_fp(out, buf, inp, separator, out_bin,
sigkey, sigbuf, siglen, sig_name, md_name,
argv[i], bmd);
}
if (r)
err = r;
(void) BIO_reset(bmd);
}
}
end:
if (buf != NULL) {
OPENSSL_cleanse(buf, BUFSIZE);
free(buf);
}
if (in != NULL)
BIO_free(in);
free(passin);
BIO_free_all(out);
EVP_PKEY_free(sigkey);
if (sigopts)
sk_OPENSSL_STRING_free(sigopts);
if (macopts)
sk_OPENSSL_STRING_free(macopts);
free(sigbuf);
if (bmd != NULL)
BIO_free(bmd);
return (err);
}
static LUA_FUNCTION(openssl_bio_new_filter)
{
/* 0 1 2 3 4 5 */
static const char* sType[] = {"base64", "buffer", "cipher", "md", "ssl", NULL};
int type = luaL_checkoption(L, 1, NULL, sType);
BIO* bio = NULL;
int ret = 1;
int closeflag = 0;
switch (type)
{
case 0:
bio = BIO_new(BIO_f_base64());
break;
case 1:
bio = BIO_new(BIO_f_buffer());
break;
case 2:
{
const EVP_CIPHER* c = get_cipher(L, 2, NULL);
size_t kl, il;
const char* k = luaL_checklstring(L, 3, &kl);
const char* v = luaL_checklstring(L, 4, &il);
int encrypt = auxiliar_checkboolean(L, 5);
bio = BIO_new(BIO_f_cipher());
BIO_set_cipher(bio, c, (const unsigned char*)k, (const unsigned char*)v, encrypt);
}
break;
case 3:
{
const EVP_MD* md = get_digest(L, 2);
bio = BIO_new(BIO_f_md());
ret = BIO_set_md(bio, md);
}
case 4:
{
SSL* ssl = CHECK_OBJECT(2, SSL, "openssl.ssl");
closeflag = luaL_checkoption(L, 3, "noclose", close_flags);
bio = BIO_new(BIO_f_ssl());
ret = BIO_set_ssl(bio, ssl, closeflag);
}
break;
default:
ret = 0;
}
if (ret == 1 && bio)
{
PUSH_OBJECT(bio, "openssl.bio");
if (closeflag)
{
openssl_newvalue(L, bio);
lua_pushboolean(L, 1);
openssl_setvalue(L, bio, "free_all");
}
return 1;
}
else
{
if (bio)
BIO_free(bio);
return openssl_pushresult(L, ret);
}
return 0;
}
/* int */
BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
{
int i,j;
BIO *out=NULL,*btmp=NULL,*etmp=NULL,*bio=NULL;
unsigned char *tmp=NULL;
X509_ALGOR *xa;
ASN1_OCTET_STRING *data_body=NULL;
const EVP_MD *evp_md;
const EVP_CIPHER *evp_cipher=NULL;
EVP_CIPHER_CTX *evp_ctx=NULL;
X509_ALGOR *enc_alg=NULL;
STACK_OF(X509_ALGOR) *md_sk=NULL;
STACK_OF(PKCS7_RECIP_INFO) *rsk=NULL;
X509_ALGOR *xalg=NULL;
PKCS7_RECIP_INFO *ri=NULL;
i=OBJ_obj2nid(p7->type);
p7->state=PKCS7_S_HEADER;
switch (i)
{
case NID_pkcs7_signed:
data_body=PKCS7_get_octet_string(p7->d.sign->contents);
md_sk=p7->d.sign->md_algs;
break;
case NID_pkcs7_signedAndEnveloped:
rsk=p7->d.signed_and_enveloped->recipientinfo;
md_sk=p7->d.signed_and_enveloped->md_algs;
data_body=p7->d.signed_and_enveloped->enc_data->enc_data;
enc_alg=p7->d.signed_and_enveloped->enc_data->algorithm;
evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
goto err;
}
xalg=p7->d.signed_and_enveloped->enc_data->algorithm;
break;
case NID_pkcs7_enveloped:
rsk=p7->d.enveloped->recipientinfo;
enc_alg=p7->d.enveloped->enc_data->algorithm;
data_body=p7->d.enveloped->enc_data->enc_data;
evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
goto err;
}
xalg=p7->d.enveloped->enc_data->algorithm;
break;
default:
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
goto err;
}
/* We will be checking the signature */
if (md_sk != NULL)
{
for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
{
xa=sk_X509_ALGOR_value(md_sk,i);
if ((btmp=BIO_new(BIO_f_md())) == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_BIO_LIB);
goto err;
}
j=OBJ_obj2nid(xa->algorithm);
evp_md=EVP_get_digestbynid(j);
if (evp_md == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNKNOWN_DIGEST_TYPE);
goto err;
}
BIO_set_md(btmp,evp_md);
if (out == NULL)
out=btmp;
else
BIO_push(out,btmp);
btmp=NULL;
}
}
if (evp_cipher != NULL)
{
#if 0
unsigned char key[EVP_MAX_KEY_LENGTH];
unsigned char iv[EVP_MAX_IV_LENGTH];
unsigned char *p;
int keylen,ivlen;
int max;
X509_OBJECT ret;
#endif
int jj;
if ((etmp=BIO_new(BIO_f_cipher())) == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_BIO_LIB);
goto err;
}
/* It was encrypted, we need to decrypt the secret key
* with the private key */
/* Find the recipientInfo which matches the passed certificate
* (if any)
*/
if (pcert) {
for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++) {
ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
if (!pkcs7_cmp_ri(ri, pcert))
break;
ri=NULL;
}
if (ri == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
goto err;
}
}
jj=EVP_PKEY_size(pkey);
tmp=(unsigned char *)OPENSSL_malloc(jj+10);
if (tmp == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_MALLOC_FAILURE);
goto err;
}
/* If we haven't got a certificate try each ri in turn */
if (pcert == NULL)
{
for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
{
ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
jj=EVP_PKEY_decrypt(tmp,
M_ASN1_STRING_data(ri->enc_key),
M_ASN1_STRING_length(ri->enc_key),
pkey);
if (jj > 0)
break;
ERR_clear_error();
ri = NULL;
}
if (ri == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_NO_RECIPIENT_MATCHES_KEY);
goto err;
}
}
else
{
jj=EVP_PKEY_decrypt(tmp,
M_ASN1_STRING_data(ri->enc_key),
M_ASN1_STRING_length(ri->enc_key), pkey);
if (jj <= 0)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
ERR_R_EVP_LIB);
goto err;
}
}
evp_ctx=NULL;
BIO_get_cipher_ctx(etmp,&evp_ctx);
if (EVP_CipherInit_ex(evp_ctx,evp_cipher,NULL,NULL,NULL,0) <= 0)
goto err;
if (EVP_CIPHER_asn1_to_param(evp_ctx,enc_alg->parameter) < 0)
goto err;
if (jj != EVP_CIPHER_CTX_key_length(evp_ctx)) {
/* Some S/MIME clients don't use the same key
* and effective key length. The key length is
* determined by the size of the decrypted RSA key.
*/
if(!EVP_CIPHER_CTX_set_key_length(evp_ctx, jj))
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_DECRYPTED_KEY_IS_WRONG_LENGTH);
goto err;
}
}
if (EVP_CipherInit_ex(evp_ctx,NULL,NULL,tmp,NULL,0) <= 0)
goto err;
OPENSSL_cleanse(tmp,jj);
if (out == NULL)
out=etmp;
else
BIO_push(out,etmp);
etmp=NULL;
}
#if 1
if (PKCS7_is_detached(p7) || (in_bio != NULL))
{
bio=in_bio;
}
else
{
#if 0
bio=BIO_new(BIO_s_mem());
/* We need to set this so that when we have read all
* the data, the encrypt BIO, if present, will read
* EOF and encode the last few bytes */
BIO_set_mem_eof_return(bio,0);
if (data_body->length > 0)
BIO_write(bio,(char *)data_body->data,data_body->length);
#else
if (data_body->length > 0)
bio = BIO_new_mem_buf(data_body->data,data_body->length);
else {
bio=BIO_new(BIO_s_mem());
BIO_set_mem_eof_return(bio,0);
}
#endif
}
BIO_push(out,bio);
bio=NULL;
#endif
if (0)
{
err:
if (out != NULL) BIO_free_all(out);
if (btmp != NULL) BIO_free_all(btmp);
if (etmp != NULL) BIO_free_all(etmp);
if (bio != NULL) BIO_free_all(bio);
out=NULL;
}
if (tmp != NULL)
OPENSSL_free(tmp);
return(out);
}
int load_keys(CK_FUNCTION_LIST *funcs,
CK_SESSION_HANDLE h_session,
CK_KEY_TYPE type,
key_id_t **out,
CK_ULONG_PTR len)
{
CK_RV rc;
CK_ULONG l, i, j = 0;
CK_OBJECT_HANDLE handles[1024];
key_id_t *keys = NULL;
CK_OBJECT_CLASS pkey = CKO_PRIVATE_KEY;
const EVP_MD *hash = EVP_sha256();
unsigned char md[EVP_MAX_MD_SIZE];
char key_id[KEY_ID_SIZE + 1];
CK_ATTRIBUTE search[2] = {
{ CKA_CLASS, &pkey, sizeof(pkey)},
{ CKA_KEY_TYPE, &type, sizeof(type) },
};
rc = funcs->C_FindObjectsInit(h_session, search, 2);
if (rc != CKR_OK) {
show_error(stderr, "C_FindObjectsInit", rc);
return 1;
}
rc = funcs->C_FindObjects(h_session, handles, 1024, &l);
if (rc != CKR_OK) {
show_error(stderr, "C_FindObjects", rc);
return 1;
}
rc = funcs->C_FindObjectsFinal(h_session);
if (rc != CKR_OK) {
show_error(stderr, "C_FindObjectsFinal", rc);
}
keys = (key_id_t*)calloc(l, sizeof(key_id_t));
if(keys == NULL) {
return 1;
}
fprintf(stderr, "Found: %ld objects\n", l);
BIO *bio = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
for(i = 0; i < l; i++) {
// print_object_info(funcs, stderr, i, h_session, handles[i]);
keys[j].key = load_pkcs11_key(funcs, h_session, handles[i]);
if(keys[j].key) {
unsigned int k, l, n;
BIO *s = BIO_new(BIO_s_null());
BIO *h = BIO_new(BIO_f_md());
BIO_set_md(h, hash);
s = BIO_push(h, s);
if(type == CKK_RSA) {
i2d_RSAPublicKey_bio(s, EVP_PKEY_get1_RSA(keys[j].key));
PEM_write_bio_RSAPrivateKey(bio, EVP_PKEY_get1_RSA(keys[j].key), NULL, NULL, 0, NULL, NULL);
} if(type == CKK_EC) {
i2d_EC_PUBKEY_bio(s, EVP_PKEY_get1_EC_KEY(keys[j].key));
PEM_write_bio_ECPrivateKey(bio, EVP_PKEY_get1_EC_KEY(keys[j].key), NULL, NULL, 0, NULL, NULL);
}
n = BIO_gets(h, (char*)md, EVP_MAX_MD_SIZE);
for(k = 0, l = 0; k < n; k++) {
l += sprintf(key_id + l, "%02X", md[k]);
}
memcpy(keys[j].id, key_id, KEY_ID_SIZE);
BIO_free_all(s);
j += 1;
}
}
if (bio) {
BIO_free_all(bio);
}
if(out) {
*out = keys;
} else {
for(i = 0; i < j; i++) {
unload_pkcs11_key(keys[i].key);
}
}
if(len) {
*len = j;
}
return 0;
}
int MAIN(int argc, char **argv)
{
ENGINE *e = NULL;
unsigned char *buf=NULL;
int i,err=0;
const EVP_MD *md=NULL,*m;
BIO *in=NULL,*inp;
BIO *bmd=NULL;
BIO *out = NULL;
const char *name;
#define PROG_NAME_SIZE 39
char pname[PROG_NAME_SIZE+1];
int separator=0;
int debug=0;
int keyform=FORMAT_PEM;
const char *outfile = NULL, *keyfile = NULL;
const char *sigfile = NULL, *randfile = NULL;
int out_bin = -1, want_pub = 0, do_verify = 0;
EVP_PKEY *sigkey = NULL;
unsigned char *sigbuf = NULL;
int siglen = 0;
char *passargin = NULL, *passin = NULL;
#ifndef OPENSSL_NO_ENGINE
char *engine=NULL;
#endif
apps_startup();
if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL)
{
BIO_printf(bio_err,"out of memory\n");
goto end;
}
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;
/* first check the program name */
program_name(argv[0],pname,sizeof pname);
md=EVP_get_digestbyname(pname);
argc--;
argv++;
while (argc > 0)
{
if ((*argv)[0] != '-') break;
if (strcmp(*argv,"-c") == 0)
separator=1;
else if (strcmp(*argv,"-rand") == 0)
{
if (--argc < 1) break;
randfile=*(++argv);
}
else if (strcmp(*argv,"-out") == 0)
{
if (--argc < 1) break;
outfile=*(++argv);
}
else if (strcmp(*argv,"-sign") == 0)
{
if (--argc < 1) break;
keyfile=*(++argv);
}
else if (!strcmp(*argv,"-passin"))
{
if (--argc < 1)
break;
passargin=*++argv;
}
else if (strcmp(*argv,"-verify") == 0)
{
if (--argc < 1) break;
keyfile=*(++argv);
want_pub = 1;
do_verify = 1;
}
else if (strcmp(*argv,"-prverify") == 0)
{
if (--argc < 1) break;
keyfile=*(++argv);
do_verify = 1;
}
else if (strcmp(*argv,"-signature") == 0)
{
if (--argc < 1) break;
sigfile=*(++argv);
}
else if (strcmp(*argv,"-keyform") == 0)
{
if (--argc < 1) break;
keyform=str2fmt(*(++argv));
}
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv,"-engine") == 0)
{
if (--argc < 1) break;
engine= *(++argv);
}
#endif
else if (strcmp(*argv,"-hex") == 0)
out_bin = 0;
else if (strcmp(*argv,"-binary") == 0)
out_bin = 1;
else if (strcmp(*argv,"-d") == 0)
debug=1;
else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
md=m;
else
break;
argc--;
argv++;
}
if (md == NULL)
md=EVP_md5();
if(do_verify && !sigfile) {
BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
err = 1;
goto end;
}
if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
{
BIO_printf(bio_err,"unknown option '%s'\n",*argv);
BIO_printf(bio_err,"options are\n");
BIO_printf(bio_err,"-c to output the digest with separating colons\n");
BIO_printf(bio_err,"-d to output debug info\n");
BIO_printf(bio_err,"-hex output as hex dump\n");
BIO_printf(bio_err,"-binary output in binary form\n");
BIO_printf(bio_err,"-sign file sign digest using private key in file\n");
BIO_printf(bio_err,"-verify file verify a signature using public key in file\n");
BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n");
BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n");
BIO_printf(bio_err,"-signature file signature to verify\n");
BIO_printf(bio_err,"-binary output in binary form\n");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n");
#endif
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n",
LN_md5,LN_md5);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_md4,LN_md4);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_md2,LN_md2);
#ifndef OPENSSL_NO_SHA
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_sha1,LN_sha1);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_sha,LN_sha);
#ifndef OPENSSL_NO_SHA256
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_sha256,LN_sha256);
#endif
#ifndef OPENSSL_NO_SHA512
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_sha512,LN_sha512);
#endif
#endif
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_mdc2,LN_mdc2);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_ripemd160,LN_ripemd160);
err=1;
goto end;
}
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine, 0);
#endif
in=BIO_new(BIO_s_file());
bmd=BIO_new(BIO_f_md());
if (debug)
{
BIO_set_callback(in,BIO_debug_callback);
/* needed for windows 3.1 */
BIO_set_callback_arg(in,(char *)bio_err);
}
if(!app_passwd(bio_err, passargin, NULL, &passin, NULL))
{
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if ((in == NULL) || (bmd == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
if(out_bin == -1) {
if(keyfile) out_bin = 1;
else out_bin = 0;
}
if(randfile)
app_RAND_load_file(randfile, bio_err, 0);
if(outfile) {
if(out_bin)
out = BIO_new_file(outfile, "wb");
else out = BIO_new_file(outfile, "w");
} 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(!out) {
BIO_printf(bio_err, "Error opening output file %s\n",
outfile ? outfile : "(stdout)");
ERR_print_errors(bio_err);
goto end;
}
if(keyfile)
{
if (want_pub)
sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
e, "key file");
else
sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
e, "key file");
if (!sigkey)
{
/* load_[pub]key() has already printed an appropriate
message */
goto end;
}
}
if(sigfile && sigkey) {
BIO *sigbio;
sigbio = BIO_new_file(sigfile, "rb");
siglen = EVP_PKEY_size(sigkey);
sigbuf = OPENSSL_malloc(siglen);
if(!sigbio) {
BIO_printf(bio_err, "Error opening signature file %s\n",
sigfile);
ERR_print_errors(bio_err);
goto end;
}
siglen = BIO_read(sigbio, sigbuf, siglen);
BIO_free(sigbio);
if(siglen <= 0) {
BIO_printf(bio_err, "Error reading signature file %s\n",
sigfile);
ERR_print_errors(bio_err);
goto end;
}
}
/* we use md as a filter, reading from 'in' */
if (!BIO_set_md(bmd,md))
{
BIO_printf(bio_err, "Error setting digest %s\n", pname);
ERR_print_errors(bio_err);
goto end;
}
inp=BIO_push(bmd,in);
if (argc == 0)
{
BIO_set_fp(in,stdin,BIO_NOCLOSE);
err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf,
siglen,"","(stdin)");
}
else
{
name=OBJ_nid2sn(md->type);
for (i=0; i<argc; i++)
{
char *tmp,*tofree=NULL;
int r;
if (BIO_read_filename(in,argv[i]) <= 0)
{
perror(argv[i]);
err++;
continue;
}
if(!out_bin)
{
size_t len = strlen(name)+strlen(argv[i])+5;
tmp=tofree=OPENSSL_malloc(len);
BIO_snprintf(tmp,len,"%s(%s)= ",name,argv[i]);
}
else
tmp="";
r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf,
siglen,tmp,argv[i]);
if(r)
err=r;
if(tofree)
OPENSSL_free(tofree);
(void)BIO_reset(bmd);
}
}
end:
if (buf != NULL)
{
OPENSSL_cleanse(buf,BUFSIZE);
OPENSSL_free(buf);
}
if (in != NULL) BIO_free(in);
if (passin)
OPENSSL_free(passin);
BIO_free_all(out);
EVP_PKEY_free(sigkey);
if(sigbuf) OPENSSL_free(sigbuf);
if (bmd != NULL) BIO_free(bmd);
apps_shutdown();
OPENSSL_EXIT(err);
}
BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio)
{
int i,j;
BIO *out=NULL,*btmp=NULL;
X509_ALGOR *xa;
const EVP_MD *evp_md;
const EVP_CIPHER *evp_cipher=NULL;
STACK_OF(X509_ALGOR) *md_sk=NULL;
STACK_OF(PKCS7_RECIP_INFO) *rsk=NULL;
X509_ALGOR *xalg=NULL;
PKCS7_RECIP_INFO *ri=NULL;
EVP_PKEY *pkey;
i=OBJ_obj2nid(p7->type);
p7->state=PKCS7_S_HEADER;
switch (i)
{
case NID_pkcs7_signed:
md_sk=p7->d.sign->md_algs;
break;
case NID_pkcs7_signedAndEnveloped:
rsk=p7->d.signed_and_enveloped->recipientinfo;
md_sk=p7->d.signed_and_enveloped->md_algs;
xalg=p7->d.signed_and_enveloped->enc_data->algorithm;
evp_cipher=p7->d.signed_and_enveloped->enc_data->cipher;
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATAINIT,
PKCS7_R_CIPHER_NOT_INITIALIZED);
goto err;
}
break;
case NID_pkcs7_enveloped:
rsk=p7->d.enveloped->recipientinfo;
xalg=p7->d.enveloped->enc_data->algorithm;
evp_cipher=p7->d.enveloped->enc_data->cipher;
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATAINIT,
PKCS7_R_CIPHER_NOT_INITIALIZED);
goto err;
}
break;
default:
PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
goto err;
}
if (md_sk != NULL)
{
for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
{
xa=sk_X509_ALGOR_value(md_sk,i);
if ((btmp=BIO_new(BIO_f_md())) == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_BIO_LIB);
goto err;
}
j=OBJ_obj2nid(xa->algorithm);
evp_md=EVP_get_digestbyname(OBJ_nid2sn(j));
if (evp_md == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_UNKNOWN_DIGEST_TYPE);
goto err;
}
BIO_set_md(btmp,evp_md);
if (out == NULL)
out=btmp;
else
BIO_push(out,btmp);
btmp=NULL;
}
}
if (evp_cipher != NULL)
{
unsigned char key[EVP_MAX_KEY_LENGTH];
unsigned char iv[EVP_MAX_IV_LENGTH];
int keylen,ivlen;
int jj,max;
unsigned char *tmp;
EVP_CIPHER_CTX *ctx;
if ((btmp=BIO_new(BIO_f_cipher())) == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_BIO_LIB);
goto err;
}
BIO_get_cipher_ctx(btmp, &ctx);
keylen=EVP_CIPHER_key_length(evp_cipher);
ivlen=EVP_CIPHER_iv_length(evp_cipher);
if (RAND_bytes(key,keylen) <= 0)
goto err;
xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));
if (ivlen > 0) RAND_pseudo_bytes(iv,ivlen);
EVP_CipherInit_ex(ctx, evp_cipher, NULL, key, iv, 1);
if (ivlen > 0) {
if (xalg->parameter == NULL)
xalg->parameter=ASN1_TYPE_new();
if(EVP_CIPHER_param_to_asn1(ctx, xalg->parameter) < 0)
goto err;
}
/* Lets do the pub key stuff :-) */
max=0;
for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
{
ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
if (ri->cert == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_MISSING_CERIPEND_INFO);
goto err;
}
pkey=X509_get_pubkey(ri->cert);
jj=EVP_PKEY_size(pkey);
EVP_PKEY_free(pkey);
if (max < jj) max=jj;
}
if ((tmp=(unsigned char *)OPENSSL_malloc(max)) == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_MALLOC_FAILURE);
goto err;
}
for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
{
ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
pkey=X509_get_pubkey(ri->cert);
jj=EVP_PKEY_encrypt(tmp,key,keylen,pkey);
EVP_PKEY_free(pkey);
if (jj <= 0)
{
PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_EVP_LIB);
OPENSSL_free(tmp);
goto err;
}
M_ASN1_OCTET_STRING_set(ri->enc_key,tmp,jj);
}
OPENSSL_free(tmp);
OPENSSL_cleanse(key, keylen);
if (out == NULL)
out=btmp;
else
BIO_push(out,btmp);
btmp=NULL;
}
if (bio == NULL) {
if (PKCS7_is_detached(p7))
bio=BIO_new(BIO_s_null());
else {
if (PKCS7_type_is_signed(p7) ) {
if ( PKCS7_type_is_data(p7->d.sign->contents)) {
ASN1_OCTET_STRING *os;
os=p7->d.sign->contents->d.data;
if (os->length > 0)
bio = BIO_new_mem_buf(os->data, os->length);
}
else if ( PKCS7_type_is_octet_string(p7->d.sign->contents) ) {
ASN1_OCTET_STRING *os;
os=p7->d.sign->contents->d.other->value.octet_string;
if (os->length > 0)
bio = BIO_new_mem_buf(os->data, os->length);
}
}
if(bio == NULL) {
bio=BIO_new(BIO_s_mem());
BIO_set_mem_eof_return(bio,0);
}
}
}
BIO_push(out,bio);
bio=NULL;
if (0)
{
err:
if (out != NULL)
BIO_free_all(out);
if (btmp != NULL)
BIO_free_all(btmp);
out=NULL;
}
return(out);
}
int MAIN(int argc, char **argv)
{
unsigned char *buf=NULL;
int i,err=0;
const EVP_MD *md=NULL,*m;
BIO *in=NULL,*inp;
BIO *bmd=NULL;
BIO *out = NULL;
const char *name;
#define PROG_NAME_SIZE 39
char pname[PROG_NAME_SIZE+1];
int separator=0;
int debug=0;
const char *outfile = NULL, *keyfile = NULL;
const char *sigfile = NULL, *randfile = NULL;
int out_bin = -1, want_pub = 0, do_verify = 0;
EVP_PKEY *sigkey = NULL;
unsigned char *sigbuf = NULL;
int siglen = 0;
apps_startup();
if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL)
{
BIO_printf(bio_err,"out of memory\n");
goto end;
}
if (bio_err == NULL)
if ((bio_err=BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
/* first check the program name */
program_name(argv[0],pname,PROG_NAME_SIZE);
md=EVP_get_digestbyname(pname);
argc--;
argv++;
while (argc > 0)
{
if ((*argv)[0] != '-') break;
if (strcmp(*argv,"-c") == 0)
separator=1;
else if (strcmp(*argv,"-rand") == 0)
{
if (--argc < 1) break;
randfile=*(++argv);
}
else if (strcmp(*argv,"-out") == 0)
{
if (--argc < 1) break;
outfile=*(++argv);
}
else if (strcmp(*argv,"-sign") == 0)
{
if (--argc < 1) break;
keyfile=*(++argv);
}
else if (strcmp(*argv,"-verify") == 0)
{
if (--argc < 1) break;
keyfile=*(++argv);
want_pub = 1;
do_verify = 1;
}
else if (strcmp(*argv,"-prverify") == 0)
{
if (--argc < 1) break;
keyfile=*(++argv);
do_verify = 1;
}
else if (strcmp(*argv,"-signature") == 0)
{
if (--argc < 1) break;
sigfile=*(++argv);
}
else if (strcmp(*argv,"-hex") == 0)
out_bin = 0;
else if (strcmp(*argv,"-binary") == 0)
out_bin = 1;
else if (strcmp(*argv,"-d") == 0)
debug=1;
else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
md=m;
else
break;
argc--;
argv++;
}
if (md == NULL)
md=EVP_md5();
if(do_verify && !sigfile) {
BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
err = 1;
goto end;
}
if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
{
BIO_printf(bio_err,"unknown option '%s'\n",*argv);
BIO_printf(bio_err,"options are\n");
BIO_printf(bio_err,"-c to output the digest with separating colons\n");
BIO_printf(bio_err,"-d to output debug info\n");
BIO_printf(bio_err,"-hex output as hex dump\n");
BIO_printf(bio_err,"-binary output in binary form\n");
BIO_printf(bio_err,"-sign file sign digest using private key in file\n");
BIO_printf(bio_err,"-verify file verify a signature using public key in file\n");
BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n");
BIO_printf(bio_err,"-signature file signature to verify\n");
BIO_printf(bio_err,"-binary output in binary form\n");
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n",
LN_md5,LN_md5);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_md4,LN_md4);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_md2,LN_md2);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_sha1,LN_sha1);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_sha,LN_sha);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_mdc2,LN_mdc2);
BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
LN_ripemd160,LN_ripemd160);
err=1;
goto end;
}
in=BIO_new(BIO_s_file());
bmd=BIO_new(BIO_f_md());
if (debug)
{
BIO_set_callback(in,BIO_debug_callback);
/* needed for windows 3.1 */
BIO_set_callback_arg(in,bio_err);
}
if ((in == NULL) || (bmd == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
if(out_bin == -1) {
if(keyfile) out_bin = 1;
else out_bin = 0;
}
if(randfile)
app_RAND_load_file(randfile, bio_err, 0);
if(outfile) {
if(out_bin)
out = BIO_new_file(outfile, "wb");
else out = BIO_new_file(outfile, "w");
} else {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
#ifdef VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
if(!out) {
BIO_printf(bio_err, "Error opening output file %s\n",
outfile ? outfile : "(stdout)");
ERR_print_errors(bio_err);
goto end;
}
if(keyfile) {
BIO *keybio;
keybio = BIO_new_file(keyfile, "r");
if(!keybio) {
BIO_printf(bio_err, "Error opening key file %s\n",
keyfile);
ERR_print_errors(bio_err);
goto end;
}
if(want_pub)
sigkey = PEM_read_bio_PUBKEY(keybio, NULL, NULL, NULL);
else sigkey = PEM_read_bio_PrivateKey(keybio, NULL, NULL, NULL);
BIO_free(keybio);
if(!sigkey) {
BIO_printf(bio_err, "Error reading key file %s\n",
keyfile);
ERR_print_errors(bio_err);
goto end;
}
}
if(sigfile && sigkey) {
BIO *sigbio;
sigbio = BIO_new_file(sigfile, "rb");
siglen = EVP_PKEY_size(sigkey);
sigbuf = OPENSSL_malloc(siglen);
if(!sigbio) {
BIO_printf(bio_err, "Error opening signature file %s\n",
sigfile);
ERR_print_errors(bio_err);
goto end;
}
siglen = BIO_read(sigbio, sigbuf, siglen);
BIO_free(sigbio);
if(siglen <= 0) {
BIO_printf(bio_err, "Error reading signature file %s\n",
sigfile);
ERR_print_errors(bio_err);
goto end;
}
}
/* we use md as a filter, reading from 'in' */
BIO_set_md(bmd,md);
inp=BIO_push(bmd,in);
if (argc == 0)
{
BIO_set_fp(in,stdin,BIO_NOCLOSE);
do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf, siglen);
}
else
{
name=OBJ_nid2sn(md->type);
for (i=0; i<argc; i++)
{
if (BIO_read_filename(in,argv[i]) <= 0)
{
perror(argv[i]);
err++;
continue;
}
if(!out_bin) BIO_printf(out, "%s(%s)= ",name,argv[i]);
do_fp(out, buf,inp,separator, out_bin, sigkey,
sigbuf, siglen);
(void)BIO_reset(bmd);
}
}
end:
if (buf != NULL)
{
memset(buf,0,BUFSIZE);
OPENSSL_free(buf);
}
if (in != NULL) BIO_free(in);
BIO_free_all(out);
EVP_PKEY_free(sigkey);
if(sigbuf) OPENSSL_free(sigbuf);
if (bmd != NULL) BIO_free(bmd);
EXIT(err);
}
/* int */
BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
{
int i, j;
BIO *out = NULL, *btmp = NULL, *etmp = NULL, *bio = NULL;
X509_ALGOR *xa;
ASN1_OCTET_STRING *data_body = NULL;
const EVP_MD *evp_md;
const EVP_CIPHER *evp_cipher = NULL;
EVP_CIPHER_CTX *evp_ctx = NULL;
X509_ALGOR *enc_alg = NULL;
STACK_OF(X509_ALGOR) *md_sk = NULL;
STACK_OF(PKCS7_RECIP_INFO) *rsk = NULL;
PKCS7_RECIP_INFO *ri = NULL;
uint8_t *ek = NULL, *tkey = NULL;
int eklen = 0, tkeylen = 0;
if (p7 == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_INVALID_NULL_POINTER);
return NULL;
}
if (p7->d.ptr == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
return NULL;
}
i = OBJ_obj2nid(p7->type);
p7->state = PKCS7_S_HEADER;
switch (i) {
case NID_pkcs7_signed:
/*
* p7->d.sign->contents is a PKCS7 structure consisting of a contentType
* field and optional content.
* data_body is NULL if that structure has no (=detached) content
* or if the contentType is wrong (i.e., not "data").
*/
data_body = PKCS7_get_octet_string(p7->d.sign->contents);
if (!PKCS7_is_detached(p7) && data_body == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_INVALID_SIGNED_DATA_TYPE);
goto err;
}
md_sk = p7->d.sign->md_algs;
break;
case NID_pkcs7_signedAndEnveloped:
rsk = p7->d.signed_and_enveloped->recipientinfo;
md_sk = p7->d.signed_and_enveloped->md_algs;
/* data_body is NULL if the optional EncryptedContent is missing. */
data_body = p7->d.signed_and_enveloped->enc_data->enc_data;
enc_alg = p7->d.signed_and_enveloped->enc_data->algorithm;
evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
goto err;
}
break;
case NID_pkcs7_enveloped:
rsk = p7->d.enveloped->recipientinfo;
enc_alg = p7->d.enveloped->enc_data->algorithm;
/* data_body is NULL if the optional EncryptedContent is missing. */
data_body = p7->d.enveloped->enc_data->enc_data;
evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
goto err;
}
break;
default:
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
goto err;
}
/* Detached content must be supplied via in_bio instead. */
if (data_body == NULL && in_bio == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
goto err;
}
/* We will be checking the signature */
if (md_sk != NULL) {
for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) {
xa = sk_X509_ALGOR_value(md_sk, i);
if ((btmp = BIO_new(BIO_f_md())) == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, ERR_R_BIO_LIB);
goto err;
}
j = OBJ_obj2nid(xa->algorithm);
evp_md = EVP_get_digestbynid(j);
if (evp_md == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_UNKNOWN_DIGEST_TYPE);
goto err;
}
BIO_set_md(btmp, evp_md);
if (out == NULL)
out = btmp;
else
BIO_push(out, btmp);
btmp = NULL;
}
}
if (evp_cipher != NULL) {
if ((etmp = BIO_new(BIO_f_cipher())) == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, ERR_R_BIO_LIB);
goto err;
}
/* It was encrypted, we need to decrypt the secret key
* with the private key */
/* Find the recipientInfo which matches the passed certificate
* (if any)
*/
if (pcert) {
for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
if (!pkcs7_cmp_ri(ri, pcert))
break;
ri = NULL;
}
if (ri == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
goto err;
}
}
/* If we haven't got a certificate try each ri in turn */
if (pcert == NULL) {
/* Always attempt to decrypt all rinfo even
* after sucess as a defence against MMA timing
* attacks.
*/
for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
if (pkcs7_decrypt_rinfo(&ek, &eklen,
ri, pkey) < 0)
goto err;
ERR_clear_error();
}
} else {
/* Only exit on fatal errors, not decrypt failure */
if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey) < 0)
goto err;
ERR_clear_error();
}
evp_ctx = NULL;
BIO_get_cipher_ctx(etmp, &evp_ctx);
if (EVP_CipherInit_ex(evp_ctx, evp_cipher, NULL, NULL, NULL, 0) <= 0)
goto err;
if (EVP_CIPHER_asn1_to_param(evp_ctx, enc_alg->parameter) < 0)
goto err;
/* Generate random key as MMA defence */
tkeylen = EVP_CIPHER_CTX_key_length(evp_ctx);
tkey = malloc(tkeylen);
if (!tkey)
goto err;
if (EVP_CIPHER_CTX_rand_key(evp_ctx, tkey) <= 0)
goto err;
if (ek == NULL) {
ek = tkey;
eklen = tkeylen;
tkey = NULL;
}
if (eklen != EVP_CIPHER_CTX_key_length(evp_ctx)) {
/* Some S/MIME clients don't use the same key
* and effective key length. The key length is
* determined by the size of the decrypted RSA key.
*/
if (!EVP_CIPHER_CTX_set_key_length(evp_ctx, eklen)) {
/* Use random key as MMA defence */
vigortls_zeroize(ek, eklen);
free(ek);
ek = tkey;
eklen = tkeylen;
tkey = NULL;
}
}
/* Clear errors so we don't leak information useful in MMA */
ERR_clear_error();
if (EVP_CipherInit_ex(evp_ctx, NULL, NULL, ek, NULL, 0) <= 0)
goto err;
if (ek) {
vigortls_zeroize(ek, eklen);
free(ek);
ek = NULL;
}
if (tkey) {
vigortls_zeroize(tkey, tkeylen);
free(tkey);
tkey = NULL;
}
if (out == NULL)
out = etmp;
else
BIO_push(out, etmp);
etmp = NULL;
}
if (in_bio != NULL) {
bio = in_bio;
} else {
if (data_body->length > 0)
bio = BIO_new_mem_buf(data_body->data, data_body->length);
else {
bio = BIO_new(BIO_s_mem());
if (bio == NULL)
goto err;
BIO_set_mem_eof_return(bio, 0);
}
if (bio == NULL)
goto err;
}
BIO_push(out, bio);
bio = NULL;
if (0) {
err:
if (ek) {
vigortls_zeroize(ek, eklen);
free(ek);
}
if (tkey) {
vigortls_zeroize(tkey, tkeylen);
free(tkey);
}
if (out != NULL)
BIO_free_all(out);
if (btmp != NULL)
BIO_free_all(btmp);
if (etmp != NULL)
BIO_free_all(etmp);
if (bio != NULL)
BIO_free_all(bio);
out = NULL;
}
return (out);
}
/* int */
BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
{
int i,j;
BIO *out=NULL,*btmp=NULL,*etmp=NULL,*bio=NULL;
unsigned char *tmp=NULL;
X509_ALGOR *xa;
ASN1_OCTET_STRING *data_body=NULL;
const EVP_MD *evp_md;
const EVP_CIPHER *evp_cipher=NULL;
EVP_CIPHER_CTX *evp_ctx=NULL;
X509_ALGOR *enc_alg=NULL;
STACK_OF(X509_ALGOR) *md_sk=NULL;
STACK_OF(PKCS7_RECIP_INFO) *rsk=NULL;
PKCS7_RECIP_INFO *ri=NULL;
if (p7 == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_INVALID_NULL_POINTER);
return NULL;
}
if (p7->d.ptr == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
return NULL;
}
i=OBJ_obj2nid(p7->type);
p7->state=PKCS7_S_HEADER;
switch (i)
{
case NID_pkcs7_signed:
/*
* p7->d.sign->contents is a PKCS7 structure consisting of a contentType
* field and optional content.
* data_body is NULL if that structure has no (=detached) content
* or if the contentType is wrong (i.e., not "data").
*/
data_body=PKCS7_get_octet_string(p7->d.sign->contents);
md_sk=p7->d.sign->md_algs;
break;
case NID_pkcs7_signedAndEnveloped:
rsk=p7->d.signed_and_enveloped->recipientinfo;
md_sk=p7->d.signed_and_enveloped->md_algs;
/* data_body is NULL if the optional EncryptedContent is missing. */
data_body=p7->d.signed_and_enveloped->enc_data->enc_data;
enc_alg=p7->d.signed_and_enveloped->enc_data->algorithm;
evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
goto err;
}
break;
case NID_pkcs7_enveloped:
rsk=p7->d.enveloped->recipientinfo;
enc_alg=p7->d.enveloped->enc_data->algorithm;
/* data_body is NULL if the optional EncryptedContent is missing. */
data_body=p7->d.enveloped->enc_data->enc_data;
evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
goto err;
}
break;
default:
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
goto err;
}
/* Detached content must be supplied via in_bio instead. */
if (data_body == NULL && in_bio == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
goto err;
}
/* We will be checking the signature */
if (md_sk != NULL)
{
for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
{
xa=sk_X509_ALGOR_value(md_sk,i);
if ((btmp=BIO_new(BIO_f_md())) == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_BIO_LIB);
goto err;
}
j=OBJ_obj2nid(xa->algorithm);
evp_md=EVP_get_digestbynid(j);
if (evp_md == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNKNOWN_DIGEST_TYPE);
goto err;
}
BIO_set_md(btmp,evp_md);
if (out == NULL)
out=btmp;
else
BIO_push(out,btmp);
btmp=NULL;
}
}
if (evp_cipher != NULL)
{
#if 0
unsigned char key[EVP_MAX_KEY_LENGTH];
unsigned char iv[EVP_MAX_IV_LENGTH];
unsigned char *p;
int keylen,ivlen;
int max;
X509_OBJECT ret;
#endif
unsigned char *tkey = NULL;
int tkeylen;
int jj;
if ((etmp=BIO_new(BIO_f_cipher())) == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_BIO_LIB);
goto err;
}
/* It was encrypted, we need to decrypt the secret key
* with the private key */
/* Find the recipientInfo which matches the passed certificate
* (if any)
*/
if (pcert) {
for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++) {
ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
if (!pkcs7_cmp_ri(ri, pcert))
break;
ri=NULL;
}
if (ri == NULL) {
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
goto err;
}
}
jj=EVP_PKEY_size(pkey);
tmp=(unsigned char *)OPENSSL_malloc(jj+10);
if (tmp == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_MALLOC_FAILURE);
goto err;
}
/* If we haven't got a certificate try each ri in turn */
if (pcert == NULL)
{
/* Temporary storage in case EVP_PKEY_decrypt
* overwrites output buffer on error.
*/
unsigned char *tmp2;
tmp2 = OPENSSL_malloc(jj);
if (!tmp2)
goto err;
jj = -1;
/* Always attempt to decrypt all cases to avoid
* leaking timing information about a successful
* decrypt.
*/
for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
{
int tret;
ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
tret=EVP_PKEY_decrypt(tmp2,
M_ASN1_STRING_data(ri->enc_key),
M_ASN1_STRING_length(ri->enc_key),
pkey);
if (tret > 0)
{
memcpy(tmp, tmp2, tret);
OPENSSL_cleanse(tmp2, tret);
jj = tret;
}
ERR_clear_error();
}
OPENSSL_free(tmp2);
}
else
{
jj=EVP_PKEY_decrypt(tmp,
M_ASN1_STRING_data(ri->enc_key),
M_ASN1_STRING_length(ri->enc_key), pkey);
ERR_clear_error();
}
evp_ctx=NULL;
BIO_get_cipher_ctx(etmp,&evp_ctx);
if (EVP_CipherInit_ex(evp_ctx,evp_cipher,NULL,NULL,NULL,0) <= 0)
goto err;
if (EVP_CIPHER_asn1_to_param(evp_ctx,enc_alg->parameter) < 0)
goto err;
/* Generate random key to counter MMA */
tkeylen = EVP_CIPHER_CTX_key_length(evp_ctx);
tkey = OPENSSL_malloc(tkeylen);
if (!tkey)
goto err;
if (EVP_CIPHER_CTX_rand_key(evp_ctx, tkey) <= 0)
goto err;
/* If we have no key use random key */
if (jj <= 0)
{
OPENSSL_free(tmp);
jj = tkeylen;
tmp = tkey;
tkey = NULL;
}
if (jj != tkeylen) {
/* Some S/MIME clients don't use the same key
* and effective key length. The key length is
* determined by the size of the decrypted RSA key.
*/
if(!EVP_CIPHER_CTX_set_key_length(evp_ctx, jj))
{
/* As MMA defence use random key instead */
OPENSSL_cleanse(tmp, jj);
OPENSSL_free(tmp);
jj = tkeylen;
tmp = tkey;
tkey = NULL;
}
}
ERR_clear_error();
if (EVP_CipherInit_ex(evp_ctx,NULL,NULL,tmp,NULL,0) <= 0)
goto err;
OPENSSL_cleanse(tmp,jj);
if (tkey)
{
OPENSSL_cleanse(tkey, tkeylen);
OPENSSL_free(tkey);
}
if (out == NULL)
out=etmp;
else
BIO_push(out,etmp);
etmp=NULL;
}
#if 1
if (in_bio != NULL)
{
bio=in_bio;
}
else
{
#if 0
bio=BIO_new(BIO_s_mem());
/* We need to set this so that when we have read all
* the data, the encrypt BIO, if present, will read
* EOF and encode the last few bytes */
BIO_set_mem_eof_return(bio,0);
if (data_body->length > 0)
BIO_write(bio,(char *)data_body->data,data_body->length);
#else
if (data_body->length > 0)
bio = BIO_new_mem_buf(data_body->data,data_body->length);
else {
bio=BIO_new(BIO_s_mem());
BIO_set_mem_eof_return(bio,0);
}
if (bio == NULL)
goto err;
#endif
}
BIO_push(out,bio);
bio=NULL;
#endif
if (0)
{
err:
if (out != NULL) BIO_free_all(out);
if (btmp != NULL) BIO_free_all(btmp);
if (etmp != NULL) BIO_free_all(etmp);
if (bio != NULL) BIO_free_all(bio);
out=NULL;
}
if (tmp != NULL)
OPENSSL_free(tmp);
return(out);
}
