int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
size_t siglen)
{
unsigned char md[EVP_MAX_MD_SIZE];
int r = 0;
unsigned int mdlen = 0;
int vctx = 0;
if (ctx->pctx->pmeth->verifyctx)
vctx = 1;
else
vctx = 0;
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
if (vctx) {
r = ctx->pctx->pmeth->verifyctx(ctx->pctx, sig, siglen, ctx);
} else
r = EVP_DigestFinal_ex(ctx, md, &mdlen);
} else {
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
if (tmp_ctx == NULL || !EVP_MD_CTX_copy_ex(tmp_ctx, ctx))
return -1;
if (vctx) {
r = tmp_ctx->pctx->pmeth->verifyctx(tmp_ctx->pctx,
sig, siglen, tmp_ctx);
} else
r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);
EVP_MD_CTX_free(tmp_ctx);
}
if (vctx || !r)
return r;
return EVP_PKEY_verify(ctx->pctx, sig, siglen, md, mdlen);
}
int EVP_VerifyFinal(EVP_MD_CTX *ctx, const uint8_t *sig, size_t sig_len,
EVP_PKEY *pkey) {
uint8_t m[EVP_MAX_MD_SIZE];
unsigned int m_len;
int ret = 0;
EVP_MD_CTX tmp_ctx;
EVP_PKEY_CTX *pkctx = NULL;
EVP_MD_CTX_init(&tmp_ctx);
if (!EVP_MD_CTX_copy_ex(&tmp_ctx, ctx) ||
!EVP_DigestFinal_ex(&tmp_ctx, m, &m_len)) {
EVP_MD_CTX_cleanup(&tmp_ctx);
goto out;
}
EVP_MD_CTX_cleanup(&tmp_ctx);
pkctx = EVP_PKEY_CTX_new(pkey, NULL);
if (!pkctx ||
!EVP_PKEY_verify_init(pkctx) ||
!EVP_PKEY_CTX_set_signature_md(pkctx, ctx->digest)) {
goto out;
}
ret = EVP_PKEY_verify(pkctx, sig, sig_len, m, m_len);
out:
EVP_PKEY_CTX_free(pkctx);
return ret;
}
int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
size_t siglen)
{
EVP_MD_CTX tmp_ctx;
unsigned char md[EVP_MAX_MD_SIZE];
int r;
unsigned int mdlen;
int vctx;
if (ctx->pctx->pmeth->verifyctx)
vctx = 1;
else
vctx = 0;
EVP_MD_CTX_init(&tmp_ctx);
if (!EVP_MD_CTX_copy_ex(&tmp_ctx, ctx))
return -1;
if (vctx) {
r = tmp_ctx.pctx->pmeth->verifyctx(tmp_ctx.pctx,
sig, siglen, &tmp_ctx);
} else
r = EVP_DigestFinal_ex(&tmp_ctx, md, &mdlen);
EVP_MD_CTX_cleanup(&tmp_ctx);
if (vctx || !r)
return r;
return EVP_PKEY_verify(ctx->pctx, sig, siglen, md, mdlen);
}
int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
unsigned int siglen, EVP_PKEY *pkey)
{
unsigned char m[EVP_MAX_MD_SIZE];
unsigned int m_len = 0;
int i = 0, ok = 0, v = 0;
EVP_PKEY_CTX *pkctx = NULL;
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
if (!EVP_DigestFinal_ex(ctx, m, &m_len))
goto err;
} else {
int rv = 0;
EVP_MD_CTX tmp_ctx;
EVP_MD_CTX_init(&tmp_ctx);
rv = EVP_MD_CTX_copy_ex(&tmp_ctx, ctx);
if (rv)
rv = EVP_DigestFinal_ex(&tmp_ctx, m, &m_len);
EVP_MD_CTX_cleanup(&tmp_ctx);
if (!rv)
return 0;
}
if (ctx->digest->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) {
i = -1;
pkctx = EVP_PKEY_CTX_new(pkey, NULL);
if (pkctx == NULL)
goto err;
if (EVP_PKEY_verify_init(pkctx) <= 0)
goto err;
if (EVP_PKEY_CTX_set_signature_md(pkctx, ctx->digest) <= 0)
goto err;
i = EVP_PKEY_verify(pkctx, sigbuf, siglen, m, m_len);
err:
EVP_PKEY_CTX_free(pkctx);
return i;
}
for (i = 0; i < 4; i++) {
v = ctx->digest->required_pkey_type[i];
if (v == 0)
break;
if (pkey->type == v) {
ok = 1;
break;
}
}
if (!ok) {
EVPerr(EVP_F_EVP_VERIFYFINAL, EVP_R_WRONG_PUBLIC_KEY_TYPE);
return (-1);
}
if (ctx->digest->verify == NULL) {
EVPerr(EVP_F_EVP_VERIFYFINAL, EVP_R_NO_VERIFY_FUNCTION_CONFIGURED);
return (0);
}
return (ctx->digest->verify(ctx->digest->type, m, m_len,
sigbuf, siglen, pkey->pkey.ptr));
}
static gboolean
verify_signature (const uint8_t *hash,
const uint8_t *signature,
EVP_PKEY *pubkey,
GError **error)
{
EVP_PKEY_CTX *pkey_ctx = EVP_PKEY_CTX_new (pubkey, NULL);
gboolean ret = TRUE;
if (pkey_ctx == NULL)
{
g_set_error_literal (error,
CRYPT_ERROR,
CRYPT_ERROR_INIT,
"Error allocating pkey context");
ret = FALSE;
}
else
{
if (EVP_PKEY_verify_init (pkey_ctx) <= 0 ||
EVP_PKEY_CTX_set_rsa_padding (pkey_ctx, RSA_PKCS1_PADDING) <= 0 ||
EVP_PKEY_CTX_set_signature_md (pkey_ctx, EVP_sha256 ()) <= 0)
{
g_set_error_literal (error,
CRYPT_ERROR,
CRYPT_ERROR_INIT,
"Error initialising pkey context");
ret = FALSE;
}
else
{
int validate_ret = EVP_PKEY_verify (pkey_ctx,
signature, SIGNATURE_SIZE,
hash, SHA256_DIGEST_LENGTH);
if (validate_ret == 0)
{
g_set_error_literal (error,
CRYPT_ERROR,
CRYPT_ERROR_INVALID_SIGNATURE,
"Signature is invalid");
ret = FALSE;
}
else if (validate_ret != 1)
{
g_set_error_literal (error,
CRYPT_ERROR,
CRYPT_ERROR_VERIFY,
"Error verifying signature");
ret = FALSE;
}
}
EVP_PKEY_CTX_free (pkey_ctx);
}
return ret;
}
// Verification functions
bool OSSLGOST::verify(PublicKey* publicKey, const ByteString& originalData,
const ByteString& signature, const AsymMech::Type mechanism,
const void* param /* = NULL */, const size_t paramLen /* = 0 */)
{
if (mechanism == AsymMech::GOST)
{
// Separate implementation for GOST verification without hash computation
// Check if the private key is the right type
if (!publicKey->isOfType(OSSLGOSTPublicKey::type))
{
ERROR_MSG("Invalid key type supplied");
return false;
}
// Perform the verification operation
OSSLGOSTPublicKey* osslKey = (OSSLGOSTPublicKey*) publicKey;
EVP_PKEY* pkey = osslKey->getOSSLKey();
if (pkey == NULL)
{
ERROR_MSG("Could not get the OpenSSL public key");
return false;
}
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(pkey,NULL);
if (ctx == NULL)
{
ERROR_MSG("EVP_PKEY_CTX_new failed");
return false;
}
if (EVP_PKEY_verify_init(ctx) <= 0)
{
ERROR_MSG("EVP_PKEY_verify_init failed");
EVP_PKEY_CTX_free(ctx);
return false;
}
int ret = EVP_PKEY_verify(ctx, signature.const_byte_str(), signature.size(), originalData.const_byte_str(), originalData.size());
EVP_PKEY_CTX_free(ctx);
if (ret != 1)
{
if (ret < 0)
ERROR_MSG("GOST verify failed (0x%08X)", ERR_get_error());
return false;
}
return true;
}
else
{
// Call the generic function
return AsymmetricAlgorithm::verify(publicKey, originalData, signature, mechanism, param, paramLen);
}
}
//The partner verification function to the above signing function. Similar problem
int verify_signed_data(char *data, size_t data_len, unsigned char *orig_sig, size_t sig_len, EVP_PKEY *key)
{
EVP_PKEY_CTX *ctx;
ctx = EVP_PKEY_CTX_new(key, NULL);
EVP_PKEY_verify_init(ctx);
EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_PADDING);
EVP_PKEY_CTX_set_signature_md(ctx, EVP_sha256());
return EVP_PKEY_verify(ctx, orig_sig, sig_len, data, data_len);
}
int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const uint8_t *sig,
size_t sig_len) {
EVP_MD_CTX tmp_ctx;
int ret;
uint8_t md[EVP_MAX_MD_SIZE];
unsigned int mdlen;
EVP_MD_CTX_init(&tmp_ctx);
ret = EVP_MD_CTX_copy_ex(&tmp_ctx, ctx) &&
EVP_DigestFinal_ex(&tmp_ctx, md, &mdlen) &&
EVP_PKEY_verify(ctx->pctx, sig, sig_len, md, mdlen);
EVP_MD_CTX_cleanup(&tmp_ctx);
return ret;
}
int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
unsigned int siglen, EVP_PKEY *pkey)
{
unsigned char m[EVP_MAX_MD_SIZE];
unsigned int m_len = 0;
int i = 0;
EVP_PKEY_CTX *pkctx = NULL;
if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_FINALISE)) {
if (!EVP_DigestFinal_ex(ctx, m, &m_len))
goto err;
} else {
int rv = 0;
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
if (tmp_ctx == NULL) {
EVPerr(EVP_F_EVP_VERIFYFINAL, ERR_R_MALLOC_FAILURE);
return 0;
}
rv = EVP_MD_CTX_copy_ex(tmp_ctx, ctx);
if (rv)
rv = EVP_DigestFinal_ex(tmp_ctx, m, &m_len);
EVP_MD_CTX_free(tmp_ctx);
if (!rv)
return 0;
}
i = -1;
pkctx = EVP_PKEY_CTX_new(pkey, NULL);
if (pkctx == NULL)
goto err;
if (EVP_PKEY_verify_init(pkctx) <= 0)
goto err;
if (EVP_PKEY_CTX_set_signature_md(pkctx, EVP_MD_CTX_md(ctx)) <= 0)
goto err;
i = EVP_PKEY_verify(pkctx, sigbuf, siglen, m, m_len);
err:
EVP_PKEY_CTX_free(pkctx);
return i;
}
int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const uint8_t *sig,
size_t sig_len) {
EVP_MD_CTX tmp_ctx;
uint8_t md[EVP_MAX_MD_SIZE];
int r;
unsigned int mdlen;
const int has_verifyctx = ctx->pctx->pmeth->verifyctx != NULL;
EVP_MD_CTX_init(&tmp_ctx);
if (!EVP_MD_CTX_copy_ex(&tmp_ctx, ctx)) {
return 0;
}
if (has_verifyctx) {
r = tmp_ctx.pctx->pmeth->verifyctx(tmp_ctx.pctx, sig, sig_len, &tmp_ctx);
} else {
r = EVP_DigestFinal_ex(&tmp_ctx, md, &mdlen);
}
EVP_MD_CTX_cleanup(&tmp_ctx);
if (has_verifyctx || !r) {
return r;
}
return EVP_PKEY_verify(ctx->pctx, sig, sig_len, md, mdlen);
}
int
EAC_verify(int protocol, EVP_PKEY *key, const BUF_MEM *signature,
const BUF_MEM *data)
{
BUF_MEM *verification_data = NULL, *signature_to_verify = NULL;
EVP_PKEY_CTX *tmp_key_ctx = NULL;
int ret = -1;
const EVP_MD *md = eac_oid2md(protocol);
int type;
check((key && signature), "Invalid arguments");
tmp_key_ctx = EVP_PKEY_CTX_new(key, NULL);
if (!tmp_key_ctx || !md
|| EVP_PKEY_verify_init(tmp_key_ctx) <= 0
|| EVP_PKEY_CTX_set_signature_md(tmp_key_ctx, md) <= 0)
goto err;
type = EVP_PKEY_base_id(key);
if ( protocol == NID_id_TA_ECDSA_SHA_1
|| protocol == NID_id_TA_ECDSA_SHA_224
|| protocol == NID_id_TA_ECDSA_SHA_256
|| protocol == NID_id_TA_ECDSA_SHA_384
|| protocol == NID_id_TA_ECDSA_SHA_512) {
if (!(type == EVP_PKEY_EC))
goto err;
/* EAC signatures are always in plain signature format for EC curves but
* OpenSSL only creates X.509 format. Therefore we need to convert between
* these formats. */
signature_to_verify = convert_from_plain_sig(signature);
if (!signature_to_verify)
goto err;
} else if (protocol == NID_id_TA_RSA_v1_5_SHA_1
|| protocol == NID_id_TA_RSA_v1_5_SHA_256
|| protocol == NID_id_TA_RSA_v1_5_SHA_512) {
if (!(type == EVP_PKEY_RSA))
goto err;
signature_to_verify = BUF_MEM_create_init(signature->data,
signature->length);
if (!EVP_PKEY_CTX_set_rsa_padding(tmp_key_ctx, RSA_PKCS1_PADDING)
|| !signature_to_verify)
goto err;
} else if (protocol == NID_id_TA_RSA_PSS_SHA_1
|| protocol == NID_id_TA_RSA_PSS_SHA_256
|| protocol == NID_id_TA_RSA_PSS_SHA_512) {
if (!(type == EVP_PKEY_RSA))
goto err;
signature_to_verify = BUF_MEM_create_init(signature->data, signature->length);
if (!EVP_PKEY_CTX_set_rsa_padding(tmp_key_ctx, RSA_PKCS1_PSS_PADDING)
|| !signature_to_verify)
goto err;
} else {
goto err;
}
/* EVP_PKEY_sign doesn't perform hashing (despite EVP_PKEY_CTX_set_signature_md).
* Therefore we need to compute the hash ourself. */
verification_data = hash(md, NULL, NULL, data);
if (!verification_data)
goto err;
/* Actual signature verification */
ret = EVP_PKEY_verify(tmp_key_ctx, (unsigned char*) signature_to_verify->data,
signature_to_verify->length, (unsigned char*) verification_data->data,
verification_data->length);
err:
if (verification_data)
BUF_MEM_free(verification_data);
if (signature_to_verify)
BUF_MEM_free(signature_to_verify);
if (tmp_key_ctx)
EVP_PKEY_CTX_free(tmp_key_ctx);
return ret;
}
int
pkeyutl_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
char *infile = NULL, *outfile = NULL, *sigfile = NULL;
int pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
int keyform = FORMAT_PEM, peerform = FORMAT_PEM;
char badarg = 0, rev = 0;
char hexdump = 0, asn1parse = 0;
EVP_PKEY_CTX *ctx = NULL;
char *passargin = NULL;
int keysize = -1;
unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
size_t buf_outlen = 0;
int buf_inlen = 0, siglen = -1;
int ret = 1, rv = -1;
if (single_execution) {
if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
perror("pledge");
exit(1);
}
}
argc--;
argv++;
while (argc >= 1) {
if (!strcmp(*argv, "-in")) {
if (--argc < 1)
badarg = 1;
else
infile = *(++argv);
} else if (!strcmp(*argv, "-out")) {
if (--argc < 1)
badarg = 1;
else
outfile = *(++argv);
} else if (!strcmp(*argv, "-sigfile")) {
if (--argc < 1)
badarg = 1;
else
sigfile = *(++argv);
} else if (!strcmp(*argv, "-inkey")) {
if (--argc < 1)
badarg = 1;
else {
ctx = init_ctx(&keysize,
*(++argv), keyform, key_type,
passargin, pkey_op);
if (!ctx) {
BIO_puts(bio_err,
"Error initializing context\n");
ERR_print_errors(bio_err);
badarg = 1;
}
}
} else if (!strcmp(*argv, "-peerkey")) {
if (--argc < 1)
badarg = 1;
else if (!setup_peer(bio_err, ctx, peerform, *(++argv)))
badarg = 1;
} else if (!strcmp(*argv, "-passin")) {
if (--argc < 1)
badarg = 1;
else
passargin = *(++argv);
} else if (strcmp(*argv, "-peerform") == 0) {
if (--argc < 1)
badarg = 1;
else
peerform = str2fmt(*(++argv));
} else if (strcmp(*argv, "-keyform") == 0) {
if (--argc < 1)
badarg = 1;
else
keyform = str2fmt(*(++argv));
}
else if (!strcmp(*argv, "-pubin"))
key_type = KEY_PUBKEY;
else if (!strcmp(*argv, "-certin"))
key_type = KEY_CERT;
else if (!strcmp(*argv, "-asn1parse"))
asn1parse = 1;
else if (!strcmp(*argv, "-hexdump"))
hexdump = 1;
else if (!strcmp(*argv, "-sign"))
pkey_op = EVP_PKEY_OP_SIGN;
else if (!strcmp(*argv, "-verify"))
pkey_op = EVP_PKEY_OP_VERIFY;
else if (!strcmp(*argv, "-verifyrecover"))
pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
else if (!strcmp(*argv, "-rev"))
rev = 1;
else if (!strcmp(*argv, "-encrypt"))
pkey_op = EVP_PKEY_OP_ENCRYPT;
else if (!strcmp(*argv, "-decrypt"))
pkey_op = EVP_PKEY_OP_DECRYPT;
else if (!strcmp(*argv, "-derive"))
pkey_op = EVP_PKEY_OP_DERIVE;
else if (strcmp(*argv, "-pkeyopt") == 0) {
if (--argc < 1)
badarg = 1;
else if (!ctx) {
BIO_puts(bio_err,
"-pkeyopt command before -inkey\n");
badarg = 1;
} else if (pkey_ctrl_string(ctx, *(++argv)) <= 0) {
BIO_puts(bio_err, "parameter setting error\n");
ERR_print_errors(bio_err);
goto end;
}
} else
badarg = 1;
if (badarg) {
usage();
goto end;
}
argc--;
argv++;
}
if (!ctx) {
usage();
goto end;
}
if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
BIO_puts(bio_err, "Signature file specified for non verify\n");
goto end;
}
if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
BIO_puts(bio_err, "No signature file specified for verify\n");
goto end;
}
if (pkey_op != EVP_PKEY_OP_DERIVE) {
if (infile) {
if (!(in = BIO_new_file(infile, "rb"))) {
BIO_puts(bio_err,
"Error Opening Input File\n");
ERR_print_errors(bio_err);
goto end;
}
} else
in = BIO_new_fp(stdin, BIO_NOCLOSE);
}
if (outfile) {
if (!(out = BIO_new_file(outfile, "wb"))) {
BIO_printf(bio_err, "Error Creating Output File\n");
ERR_print_errors(bio_err);
goto end;
}
} else {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
}
if (sigfile) {
BIO *sigbio = BIO_new_file(sigfile, "rb");
if (!sigbio) {
BIO_printf(bio_err, "Can't open signature file %s\n",
sigfile);
goto end;
}
siglen = bio_to_mem(&sig, keysize * 10, sigbio);
BIO_free(sigbio);
if (siglen <= 0) {
BIO_printf(bio_err, "Error reading signature data\n");
goto end;
}
}
if (in) {
/* Read the input data */
buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
if (buf_inlen <= 0) {
BIO_printf(bio_err, "Error reading input Data\n");
exit(1);
}
if (rev) {
size_t i;
unsigned char ctmp;
size_t l = (size_t) buf_inlen;
for (i = 0; i < l / 2; i++) {
ctmp = buf_in[i];
buf_in[i] = buf_in[l - 1 - i];
buf_in[l - 1 - i] = ctmp;
}
}
}
if (pkey_op == EVP_PKEY_OP_VERIFY) {
rv = EVP_PKEY_verify(ctx, sig, (size_t) siglen,
buf_in, (size_t) buf_inlen);
if (rv == 1) {
BIO_puts(out, "Signature Verified Successfully\n");
ret = 0;
} else
BIO_puts(out, "Signature Verification Failure\n");
if (rv >= 0)
goto end;
} else {
rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
buf_in, (size_t) buf_inlen);
if (rv > 0) {
buf_out = malloc(buf_outlen);
if (!buf_out)
rv = -1;
else
rv = do_keyop(ctx, pkey_op,
buf_out, (size_t *) & buf_outlen,
buf_in, (size_t) buf_inlen);
}
}
if (rv <= 0) {
BIO_printf(bio_err, "Public Key operation error\n");
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
if (asn1parse) {
if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
ERR_print_errors(bio_err);
} else if (hexdump)
BIO_dump(out, (char *) buf_out, buf_outlen);
else
BIO_write(out, buf_out, buf_outlen);
end:
EVP_PKEY_CTX_free(ctx);
BIO_free(in);
BIO_free_all(out);
free(buf_in);
free(buf_out);
free(sig);
return ret;
}
static int sign_and_verify(int len)
{
/*
* Per FIPS 186-4, the hash is recommended to be the same length as q.
* If the hash is longer than q, the leftmost N bits are used; if the hash
* is shorter, then we left-pad (see appendix C.2.1).
*/
size_t sigLength;
int digestlen = BN_num_bytes(DSA_get0_q(dsakey));
int ok = 0;
unsigned char *dataToSign = OPENSSL_malloc(len);
unsigned char *paddedData = OPENSSL_malloc(digestlen);
unsigned char *signature = NULL;
EVP_PKEY_CTX *ctx = NULL;
EVP_PKEY *pkey = NULL;
if (!TEST_ptr(dataToSign) ||
!TEST_ptr(paddedData) ||
!TEST_int_eq(RAND_bytes(dataToSign, len), 1))
goto end;
memset(paddedData, 0, digestlen);
if (len > digestlen)
memcpy(paddedData, dataToSign, digestlen);
else
memcpy(paddedData + digestlen - len, dataToSign, len);
if (!TEST_ptr(pkey = EVP_PKEY_new()))
goto end;
EVP_PKEY_set1_DSA(pkey, dsakey);
if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL)))
goto end;
if (!TEST_int_eq(EVP_PKEY_sign_init(ctx), 1))
goto end;
if (EVP_PKEY_sign(ctx, NULL, &sigLength, dataToSign, len) != 1) {
TEST_error("Failed to get signature length, len=%d", len);
goto end;
}
if (!TEST_ptr(signature = OPENSSL_malloc(sigLength)))
goto end;
if (EVP_PKEY_sign(ctx, signature, &sigLength, dataToSign, len) != 1) {
TEST_error("Failed to sign, len=%d", len);
goto end;
}
/* Check that the signature is okay via the EVP interface */
if (!TEST_int_eq(EVP_PKEY_verify_init(ctx), 1))
goto end;
/* ... using the same data we just signed */
if (EVP_PKEY_verify(ctx, signature, sigLength, dataToSign, len) != 1) {
TEST_error("EVP verify with unpadded length %d failed\n", len);
goto end;
}
/* ... padding/truncating the data to the appropriate digest size */
if (EVP_PKEY_verify(ctx, signature, sigLength, paddedData, digestlen) != 1) {
TEST_error("EVP verify with length %d failed\n", len);
goto end;
}
/* Verify again using the raw DSA interface */
if (DSA_verify(0, dataToSign, len, signature, sigLength, dsakey) != 1) {
TEST_error("Verification with unpadded data failed, len=%d", len);
goto end;
}
if (DSA_verify(0, paddedData, digestlen, signature, sigLength, dsakey) != 1) {
TEST_error("verify with length %d failed\n", len);
goto end;
}
ok = 1;
end:
EVP_PKEY_CTX_free(ctx);
EVP_PKEY_free(pkey);
OPENSSL_free(signature);
OPENSSL_free(paddedData);
OPENSSL_free(dataToSign);
return ok;
}
static VALUE ORPV__verify_pss_sha1(VALUE self, VALUE vPubKey, VALUE vSig, VALUE vHashData, VALUE vSaltLen) {
enum ORPV_errors err = OK;
BIO * pkey_bio = NULL;
RSA * rsa_pub_key = NULL;
EVP_PKEY * pkey = NULL;
EVP_PKEY_CTX * pkey_ctx = NULL;
char * pub_key = NULL;
int verify_rval = -1, salt_len;
char ossl_err_strs[(OSSL_ERR_STR_LEN + 2) * ORPV_MAX_ERRS] = "";
if (ERR_peek_error()) {
err = EXTERNAL;
goto Cleanup;
}
vPubKey = StringValue(vPubKey);
vSig = StringValue(vSig);
vHashData = StringValue(vHashData);
salt_len = NUM2INT(vSaltLen);
if (RSTRING_LEN(vPubKey) > (long)INT_MAX) {
err = KEY_OVERFLOW;
goto Cleanup;
}
pub_key = malloc(RSTRING_LEN(vPubKey));
if (! pub_key) {
err = NOMEM;
goto Cleanup;
}
memcpy(pub_key, StringValuePtr(vPubKey), RSTRING_LEN(vPubKey));
pkey_bio = BIO_new_mem_buf(pub_key, (int)RSTRING_LEN(vPubKey));
rsa_pub_key = PEM_read_bio_RSA_PUBKEY(pkey_bio, NULL, NULL, NULL);
if (! rsa_pub_key) {
err = PUBKEY_PARSE;
goto Cleanup;
}
pkey = EVP_PKEY_new();
if (! pkey) {
err = PKEY_INIT;
goto Cleanup;
}
if (! EVP_PKEY_set1_RSA(pkey, rsa_pub_key)) {
err = RSA_ASSIGN;
goto Cleanup;
}
pkey_ctx = EVP_PKEY_CTX_new(pkey, ENGINE_get_default_RSA());
if (! pkey_ctx) {
err = PKEY_CTX_INIT;
goto Cleanup;
}
if (EVP_PKEY_verify_init(pkey_ctx) <= 0) {
err = VERIFY_INIT;
goto Cleanup;
}
if (EVP_PKEY_CTX_set_signature_md(pkey_ctx, EVP_sha1()) <= 0) {
err = SET_SIG_MD;
goto Cleanup;
}
if (EVP_PKEY_CTX_set_rsa_padding(pkey_ctx, RSA_PKCS1_PSS_PADDING) <= 0) {
err = SET_PADDING;
goto Cleanup;
}
if (EVP_PKEY_CTX_set_rsa_pss_saltlen(pkey_ctx, salt_len) <= 0) {
err = SET_SALTLEN;
goto Cleanup;
}
verify_rval = EVP_PKEY_verify(pkey_ctx,
(unsigned char*)StringValuePtr(vSig), (size_t)RSTRING_LEN(vSig),
(unsigned char*)StringValuePtr(vHashData), (size_t)RSTRING_LEN(vHashData));
Cleanup:
/*
* BIO * pkey_bio = NULL;
* RSA * rsa_pub_key = NULL;
* EVP_PKEY * pkey = NULL;
* EVP_PKEY_CTX * pkey_ctx = NULL;
* char * pub_key = NULL;
*/
if (pkey_ctx) EVP_PKEY_CTX_free(pkey_ctx);
if (pkey) EVP_PKEY_free(pkey);
if (rsa_pub_key) RSA_free(rsa_pub_key);
if (pkey_bio) BIO_free(pkey_bio);
if (pub_key) free(pub_key);
switch (err) {
case OK:
switch (verify_rval) {
case 1:
return Qtrue;
case 0:
return Qfalse;
default:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "An error occurred during validation.\n%s", ossl_err_strs);
}
break;
case EXTERNAL:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_eRuntimeError, "OpenSSL was in an error state prior to invoking this verification.\n%s", ossl_err_strs);
break;
case KEY_OVERFLOW:
rb_raise(rb_cRSAError, "Your public key is too big. How is that even possible?");
break;
case NOMEM:
rb_raise(rb_const_get_at(rb_mErrno, rb_intern("ENOMEM")), "Insufficient memory to allocate pubkey copy. Woof.");
break;
case PUBKEY_PARSE:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "Error parsing public key\n%s", ossl_err_strs);
break;
case PKEY_INIT:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "Failed to initialize PKEY\n%s", ossl_err_strs);
break;
case RSA_ASSIGN:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "Failed to assign RSA object to PKEY\n%s", ossl_err_strs);
break;
case PKEY_CTX_INIT:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "Failed to initialize PKEY context.\n%s", ossl_err_strs);
break;
case VERIFY_INIT:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "Failed to initialize verification process.\n%s", ossl_err_strs);
break;
case SET_SIG_MD:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "Failed to set signature message digest to SHA1.\n%s", ossl_err_strs);
break;
case SET_PADDING:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "Failed to set PSS padding.\n%s", ossl_err_strs);
break;
case SET_SALTLEN:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_cRSAError, "Failed to set salt length.\n%s", ossl_err_strs);
break;
default:
bind_err_strs(ossl_err_strs, ORPV_MAX_ERRS);
rb_raise(rb_eRuntimeError, "Something has gone horribly wrong.\n%s", ossl_err_strs);
}
return Qnil;
}
int pkeyutl_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
ENGINE *e = NULL;
EVP_PKEY_CTX *ctx = NULL;
char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL;
char hexdump = 0, asn1parse = 0, rev = 0, *prog;
unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
OPTION_CHOICE o;
int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform =
FORMAT_PEM;
int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
int engine_impl = 0;
int ret = 1, rv = -1;
size_t buf_outlen;
const char *inkey = NULL;
const char *peerkey = NULL;
STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
prog = opt_init(argc, argv, pkeyutl_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(pkeyutl_options);
ret = 0;
goto end;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_SIGFILE:
sigfile = opt_arg();
break;
case OPT_ENGINE_IMPL:
engine_impl = 1;
break;
case OPT_INKEY:
inkey = opt_arg();
break;
case OPT_PEERKEY:
peerkey = opt_arg();
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_PEERFORM:
if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
goto opthelp;
break;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
goto opthelp;
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_PUBIN:
key_type = KEY_PUBKEY;
break;
case OPT_CERTIN:
key_type = KEY_CERT;
break;
case OPT_ASN1PARSE:
asn1parse = 1;
break;
case OPT_HEXDUMP:
hexdump = 1;
break;
case OPT_SIGN:
pkey_op = EVP_PKEY_OP_SIGN;
break;
case OPT_VERIFY:
pkey_op = EVP_PKEY_OP_VERIFY;
break;
case OPT_VERIFYRECOVER:
pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
break;
case OPT_ENCRYPT:
pkey_op = EVP_PKEY_OP_ENCRYPT;
break;
case OPT_DECRYPT:
pkey_op = EVP_PKEY_OP_DECRYPT;
break;
case OPT_DERIVE:
pkey_op = EVP_PKEY_OP_DERIVE;
break;
case OPT_REV:
rev = 1;
break;
case OPT_PKEYOPT:
if ((pkeyopts == NULL &&
(pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) ||
sk_OPENSSL_STRING_push(pkeyopts, *++argv) == 0) {
BIO_puts(bio_err, "out of memory\n");
goto end;
}
break;
}
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
if (inkey == NULL ||
(peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE))
goto opthelp;
ctx = init_ctx(&keysize, inkey, keyform, key_type,
passinarg, pkey_op, e, engine_impl);
if (ctx == NULL) {
BIO_printf(bio_err, "%s: Error initializing context\n", prog);
ERR_print_errors(bio_err);
goto end;
}
if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
ERR_print_errors(bio_err);
goto end;
}
if (pkeyopts != NULL) {
int num = sk_OPENSSL_STRING_num(pkeyopts);
int i;
for (i = 0; i < num; ++i) {
const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
if (pkey_ctrl_string(ctx, opt) <= 0) {
BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
ERR_print_errors(bio_err);
goto end;
}
}
}
if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
BIO_printf(bio_err,
"%s: Signature file specified for non verify\n", prog);
goto end;
}
if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
BIO_printf(bio_err,
"%s: No signature file specified for verify\n", prog);
goto end;
}
/* FIXME: seed PRNG only if needed */
app_RAND_load_file(NULL, 0);
if (pkey_op != EVP_PKEY_OP_DERIVE) {
in = bio_open_default(infile, 'r', FORMAT_BINARY);
if (in == NULL)
goto end;
}
out = bio_open_default(outfile, 'w', FORMAT_BINARY);
if (out == NULL)
goto end;
if (sigfile) {
BIO *sigbio = BIO_new_file(sigfile, "rb");
if (!sigbio) {
BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
goto end;
}
siglen = bio_to_mem(&sig, keysize * 10, sigbio);
BIO_free(sigbio);
if (siglen < 0) {
BIO_printf(bio_err, "Error reading signature data\n");
goto end;
}
}
if (in) {
/* Read the input data */
buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
if (buf_inlen < 0) {
BIO_printf(bio_err, "Error reading input Data\n");
exit(1);
}
if (rev) {
size_t i;
unsigned char ctmp;
size_t l = (size_t)buf_inlen;
for (i = 0; i < l / 2; i++) {
ctmp = buf_in[i];
buf_in[i] = buf_in[l - 1 - i];
buf_in[l - 1 - i] = ctmp;
}
}
}
if (pkey_op == EVP_PKEY_OP_VERIFY) {
rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
buf_in, (size_t)buf_inlen);
if (rv == 1) {
BIO_puts(out, "Signature Verified Successfully\n");
ret = 0;
} else
BIO_puts(out, "Signature Verification Failure\n");
goto end;
}
rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
buf_in, (size_t)buf_inlen);
if (rv > 0 && buf_outlen != 0) {
buf_out = app_malloc(buf_outlen, "buffer output");
rv = do_keyop(ctx, pkey_op,
buf_out, (size_t *)&buf_outlen,
buf_in, (size_t)buf_inlen);
}
if (rv < 0) {
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
if (asn1parse) {
if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
ERR_print_errors(bio_err);
} else if (hexdump)
BIO_dump(out, (char *)buf_out, buf_outlen);
else
BIO_write(out, buf_out, buf_outlen);
end:
EVP_PKEY_CTX_free(ctx);
BIO_free(in);
BIO_free_all(out);
OPENSSL_free(buf_in);
OPENSSL_free(buf_out);
OPENSSL_free(sig);
sk_OPENSSL_STRING_free(pkeyopts);
return ret;
}
int main()
{
int ret = -1;
int verbose = 0;
BIO *out = NULL;
int id = EVP_PKEY_SM2;
const EVP_MD *md = EVP_sm3();
ENGINE *engine = NULL;
EVP_PKEY_CTX *pkctx = NULL;
EVP_PKEY *pkey = NULL;
EVP_MD_CTX *mdctx = NULL;
EVP_CIPHER_CTX *cpctx = NULL;
unsigned char dgst[EVP_MAX_MD_SIZE] = "hello world";
size_t dgstlen = 32;
unsigned char sig[256];
size_t siglen = sizeof(sig);
unsigned char msg[] = "hello world this is the message";
size_t msglen = sizeof(msg);
unsigned char cbuf[512];
size_t cbuflen = sizeof(cbuf);
unsigned char mbuf[512];
size_t mbuflen = sizeof(mbuf);
int len;
unsigned int ulen;
ERR_load_crypto_strings();
out = BIO_new_fp(stdout, BIO_NOCLOSE);
if (!(pkctx = EVP_PKEY_CTX_new_id(id, engine))) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (!EVP_PKEY_keygen_init(pkctx)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (!EVP_PKEY_keygen(pkctx, &pkey)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
EVP_PKEY_CTX_free(pkctx);
if (0) {
EVP_PKEY_print_public(out, pkey, 4, NULL);
BIO_printf(out, "\n");
EVP_PKEY_print_private(out, pkey, 4, NULL);
BIO_printf(out, "\n");
}
if (!(pkctx = EVP_PKEY_CTX_new(pkey, engine))) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
/* EVP_PKEY_sign() */
if (!EVP_PKEY_sign_init(pkctx)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
bzero(sig, sizeof(sig));
siglen = sizeof(sig);
dgstlen = 32;
if (!EVP_PKEY_sign(pkctx, sig, &siglen, dgst, dgstlen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (verbose) {
size_t i;
printf("signature (%zu bytes) = ", siglen);
for (i = 0; i < siglen; i++) {
printf("%02X", sig[i]);
}
printf("\n");
}
if (!EVP_PKEY_verify_init(pkctx)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (EVP_PKEY_verify(pkctx, sig, siglen, dgst, dgstlen) != SM2_VERIFY_SUCCESS) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (verbose) {
printf("signature verification success!\n");
}
/* EVP_PKEY_encrypt() */
if (!EVP_PKEY_encrypt_init(pkctx)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
cbuflen = sizeof(cbuf);
if (!EVP_PKEY_encrypt(pkctx, cbuf, &cbuflen, msg, msglen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (verbose) {
size_t i;
printf("ciphertext (%zu bytes) = ", cbuflen);
for (i = 0; i < cbuflen; i++) {
printf("%02X", cbuf[i]);
}
printf("\n");
}
if (!EVP_PKEY_decrypt_init(pkctx)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
bzero(mbuf, sizeof(mbuf));
mbuflen = sizeof(mbuf);
if (!EVP_PKEY_decrypt(pkctx, mbuf, &mbuflen, cbuf, cbuflen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (verbose) {
printf("original message = %s\n", msg);
printf("decrypted message = %s\n", mbuf);
}
/* EVP_PKEY_encrypt_old */
if ((len = EVP_PKEY_encrypt_old(cbuf, msg, (int)msglen, pkey)) <= 0) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (verbose) {
int i;
printf("ciphertext (%d bytes) = ", len);
for (i = 0; i < len; i++) {
printf("%02X", cbuf[i]);
}
printf("\n");
}
bzero(mbuf, sizeof(mbuf));
if ((len = EVP_PKEY_decrypt_old(mbuf, cbuf, len, pkey)) <= 0) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (verbose) {
printf("original message = %s\n", msg);
printf("decrypted message = %s\n", mbuf);
}
if (!(mdctx = EVP_MD_CTX_create())) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
/* EVP_SignInit_ex/Update/Final_ex */
if (!EVP_SignInit_ex(mdctx, EVP_sm3(), engine)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (!EVP_SignUpdate(mdctx, msg, msglen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (!EVP_SignFinal(mdctx, sig, &ulen, pkey)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
siglen = ulen;
if (verbose) {
size_t i;
printf("signature (%zu bytes) = ", siglen);
for (i = 0; i < siglen; i++) {
printf("%02X", sig[i]);
}
printf("\n");
}
if (!EVP_VerifyInit_ex(mdctx, EVP_sm3(), engine)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (!EVP_VerifyUpdate(mdctx, msg, msglen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (EVP_VerifyFinal(mdctx, sig, ulen, pkey) != SM2_VERIFY_SUCCESS) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
/* EVP_DigestSignInit/Update/Final() */
// FIXME: return values might be different, not just 1 or 0
if (!EVP_DigestSignInit(mdctx, &pkctx, md, engine, pkey)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (!EVP_DigestSignUpdate(mdctx, msg, msglen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
siglen = sizeof(sig);
if (!EVP_DigestSignFinal(mdctx, sig, &siglen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
pkctx = NULL;
if (!EVP_DigestVerifyInit(mdctx, &pkctx, md, engine, pkey)) {
ERR_print_errors_fp(stderr);
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (!EVP_DigestVerifyUpdate(mdctx, msg, msglen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
if (!EVP_DigestVerifyFinal(mdctx, sig, siglen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
/* EVP_SealInit/Update/Final() EVP_OpenInit/Update/Final() */
/*
EVP_PKEY *pk[NUM_PKEYS] = {0};
unsigned char iv[16];
unsigned char ek[NUM_PKEYS][256];
int eklen[NUM_PKEYS];
RAND_pseudo_bytes(iv, sizeof(iv));
int i;
for (i = 0; i < NUM_PKEYS; i++) {
}
if (!(cpctx = EVP_CIPHER_CTX_new())) {
goto end;
}
if (!EVP_SealInit(cpctx, cipher, ek, &ekl, iv, pubk, npubk)) {
goto end;
}
if (!EVP_SealUpdate(cpctx, msg, msglen)) {
goto end;
}
if (!EVP_SealFinal(cpctx, cbuf, (int *)&cbuflen)) {
goto end;
}
*/
printf("test success!\n");
ret = 1;
end:
ERR_print_errors_fp(stderr);
return ret;
}
static CK_RV gostr3410_verify_data(const unsigned char *pubkey, int pubkey_len,
const unsigned char *params, int params_len,
unsigned char *data, int data_len,
unsigned char *signat, int signat_len)
{
EVP_PKEY *pkey;
EVP_PKEY_CTX *pkey_ctx;
EC_POINT *P;
BIGNUM *X, *Y;
ASN1_OCTET_STRING *octet;
const EC_GROUP *group = NULL;
char paramset[2] = "A";
int r = -1, ret_vrf = 0;
pkey = EVP_PKEY_new();
if (!pkey)
return CKR_HOST_MEMORY;
r = EVP_PKEY_set_type(pkey, NID_id_GostR3410_2001);
if (r == 1) {
pkey_ctx = EVP_PKEY_CTX_new(pkey, NULL);
if (!pkey_ctx) {
EVP_PKEY_free(pkey);
return CKR_HOST_MEMORY;
}
/* FIXME: fully check params[] */
if (params_len > 0 && params[params_len - 1] >= 1 &&
params[params_len - 1] <= 3) {
paramset[0] += params[params_len - 1] - 1;
r = EVP_PKEY_CTX_ctrl_str(pkey_ctx, "paramset", paramset);
}
else
r = -1;
if (r == 1)
r = EVP_PKEY_paramgen_init(pkey_ctx);
if (r == 1)
r = EVP_PKEY_paramgen(pkey_ctx, &pkey);
if (r == 1 && EVP_PKEY_get0(pkey) != NULL)
group = EC_KEY_get0_group(EVP_PKEY_get0(pkey));
r = -1;
if (group)
octet = d2i_ASN1_OCTET_STRING(NULL, &pubkey, (long)pubkey_len);
if (group && octet) {
reverse(octet->data, octet->length);
Y = BN_bin2bn(octet->data, octet->length / 2, NULL);
X = BN_bin2bn((const unsigned char*)octet->data +
octet->length / 2, octet->length / 2, NULL);
ASN1_OCTET_STRING_free(octet);
P = EC_POINT_new(group);
if (P && X && Y)
r = EC_POINT_set_affine_coordinates_GFp(group,
P, X, Y, NULL);
BN_free(X);
BN_free(Y);
if (r == 1 && EVP_PKEY_get0(pkey) && P)
r = EC_KEY_set_public_key(EVP_PKEY_get0(pkey), P);
EC_POINT_free(P);
}
if (r == 1) {
r = EVP_PKEY_verify_init(pkey_ctx);
reverse(data, data_len);
if (r == 1)
ret_vrf = EVP_PKEY_verify(pkey_ctx, signat, signat_len,
data, data_len);
}
}
EVP_PKEY_CTX_free(pkey_ctx);
EVP_PKEY_free(pkey);
if (r != 1)
return CKR_GENERAL_ERROR;
return ret_vrf == 1 ? CKR_OK : CKR_SIGNATURE_INVALID;
}
int verify(const char* keypath, BIGNUM* nonce, const uint8_t* sig, size_t slen){
// Nonce
uint8_t* N;
size_t Nlen;
// Context and key
EVP_PKEY_CTX *verctx;
FILE* vkeyfh;
EVP_PKEY *vkey=NULL;
// Return codes and errors
int err_code, ret_val=1;
unsigned long vererr;
/*
* Open the public key of the client for verification
*/
vkeyfh = fopen(keypath,"r");
if(!vkeyfh)
{
fprintf(stderr, "%s: Cannot open the key file\n", __func__);
ret_val = 0;
goto exit_verify;
}
vkey = PEM_read_PUBKEY(vkeyfh, &vkey, NULL, NULL);
if(!vkey){
fprintf(stderr,"Cannot read verification key from file %s\n", keypath);
ret_val = 0;
fclose(vkeyfh);
goto exit_verify;
}
verctx = EVP_PKEY_CTX_new(vkey, NULL);
if (!verctx){
fprintf(stderr,"Cannot create a verify context\n");
ret_val = 0;
fclose(vkeyfh);
EVP_PKEY_free(vkey);
goto exit_verify;
}
if (EVP_PKEY_verify_init(verctx) <= 0){
fprintf(stderr,"Cannot initialize a verify context\n");
ret_val = 0;
goto cleanup_verify;
}
/*
* Convert the nonce in a string so that it can be verified
*/
N = malloc(BN_num_bytes(nonce));
if (N == NULL)
{
fprintf(stderr, "%s: Out of memory\n", __func__);
ret_val = 0;
goto cleanup_verify;
}
Nlen = BN_bn2bin(nonce, N);
/* Perform actual verify operation */
err_code = EVP_PKEY_verify(verctx, sig, slen, N, Nlen);
if( err_code != 1 ){
ERR_load_crypto_strings();
vererr = ERR_get_error();
fprintf(stderr,"The verify operation on the nonce has failed with code %lu. RET=%d\n",vererr,err_code);
fprintf(stderr,"%s\n", ERR_error_string(vererr, NULL));
ERR_free_strings();
ret_val = 0;
}
free(N);
cleanup_verify:
EVP_PKEY_CTX_free(verctx);
EVP_PKEY_free(vkey);
fclose(vkeyfh);
exit_verify:
return ret_val;
}
int MAIN(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
char *infile = NULL, *outfile = NULL, *sigfile = NULL;
ENGINE *e = NULL;
int pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
int keyform = FORMAT_PEM, peerform = FORMAT_PEM;
char badarg = 0, rev = 0;
char hexdump = 0, asn1parse = 0;
EVP_PKEY_CTX *ctx = NULL;
char *passargin = NULL;
int keysize = -1;
unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
size_t buf_outlen;
int buf_inlen = 0, siglen = -1;
int ret = 1, rv = -1;
argc--;
argv++;
if(!bio_err) bio_err = BIO_new_fp(OPENSSL_TYPE__FILE_STDERR, BIO_NOCLOSE);
if (!load_config(bio_err, NULL))
goto end;
ERR_load_crypto_strings();
OpenSSL_add_all_algorithms();
while(argc >= 1)
{
if (!TINYCLR_SSL_STRCMP(*argv,"-in"))
{
if (--argc < 1) badarg = 1;
else infile= *(++argv);
}
else if (!TINYCLR_SSL_STRCMP(*argv,"-out"))
{
if (--argc < 1) badarg = 1;
else outfile= *(++argv);
}
else if (!TINYCLR_SSL_STRCMP(*argv,"-sigfile"))
{
if (--argc < 1) badarg = 1;
else sigfile= *(++argv);
}
else if(!TINYCLR_SSL_STRCMP(*argv, "-inkey"))
{
if (--argc < 1)
badarg = 1;
else
{
ctx = init_ctx(&keysize,
*(++argv), keyform, key_type,
passargin, pkey_op, e);
if (!ctx)
{
BIO_puts(bio_err,
"Error initializing context\n");
ERR_print_errors(bio_err);
badarg = 1;
}
}
}
else if (!TINYCLR_SSL_STRCMP(*argv,"-peerkey"))
{
if (--argc < 1)
badarg = 1;
else if (!setup_peer(bio_err, ctx, peerform, *(++argv)))
badarg = 1;
}
else if (!TINYCLR_SSL_STRCMP(*argv,"-passin"))
{
if (--argc < 1) badarg = 1;
else passargin= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-peerform") == 0)
{
if (--argc < 1) badarg = 1;
else peerform=str2fmt(*(++argv));
}
else if (TINYCLR_SSL_STRCMP(*argv,"-keyform") == 0)
{
if (--argc < 1) badarg = 1;
else keyform=str2fmt(*(++argv));
}
#ifndef OPENSSL_NO_ENGINE
else if(!TINYCLR_SSL_STRCMP(*argv, "-engine"))
{
if (--argc < 1)
badarg = 1;
else
e = setup_engine(bio_err, *(++argv), 0);
}
#endif
else if(!TINYCLR_SSL_STRCMP(*argv, "-pubin"))
key_type = KEY_PUBKEY;
else if(!TINYCLR_SSL_STRCMP(*argv, "-certin"))
key_type = KEY_CERT;
else if(!TINYCLR_SSL_STRCMP(*argv, "-asn1parse"))
asn1parse = 1;
else if(!TINYCLR_SSL_STRCMP(*argv, "-hexdump"))
hexdump = 1;
else if(!TINYCLR_SSL_STRCMP(*argv, "-sign"))
pkey_op = EVP_PKEY_OP_SIGN;
else if(!TINYCLR_SSL_STRCMP(*argv, "-verify"))
pkey_op = EVP_PKEY_OP_VERIFY;
else if(!TINYCLR_SSL_STRCMP(*argv, "-verifyrecover"))
pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
else if(!TINYCLR_SSL_STRCMP(*argv, "-rev"))
rev = 1;
else if(!TINYCLR_SSL_STRCMP(*argv, "-encrypt"))
pkey_op = EVP_PKEY_OP_ENCRYPT;
else if(!TINYCLR_SSL_STRCMP(*argv, "-decrypt"))
pkey_op = EVP_PKEY_OP_DECRYPT;
else if(!TINYCLR_SSL_STRCMP(*argv, "-derive"))
pkey_op = EVP_PKEY_OP_DERIVE;
else if (TINYCLR_SSL_STRCMP(*argv,"-pkeyopt") == 0)
{
if (--argc < 1)
badarg = 1;
else if (!ctx)
{
BIO_puts(bio_err,
"-pkeyopt command before -inkey\n");
badarg = 1;
}
else if (pkey_ctrl_string(ctx, *(++argv)) <= 0)
{
BIO_puts(bio_err, "parameter setting error\n");
ERR_print_errors(bio_err);
goto end;
}
}
else badarg = 1;
if(badarg)
{
usage();
goto end;
}
argc--;
argv++;
}
if (!ctx)
{
usage();
goto end;
}
if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY))
{
BIO_puts(bio_err, "Signature file specified for non verify\n");
goto end;
}
if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY))
{
BIO_puts(bio_err, "No signature file specified for verify\n");
goto end;
}
/* FIXME: seed PRNG only if needed */
app_RAND_load_file(NULL, bio_err, 0);
if (pkey_op != EVP_PKEY_OP_DERIVE)
{
if(infile)
{
if(!(in = BIO_new_file(infile, "rb")))
{
BIO_puts(bio_err,
"Error Opening Input File\n");
ERR_print_errors(bio_err);
goto end;
}
}
else
in = BIO_new_fp(OPENSSL_TYPE__FILE_STDIN, BIO_NOCLOSE);
}
if(outfile)
{
if(!(out = BIO_new_file(outfile, "wb")))
{
BIO_printf(bio_err, "Error Creating Output File\n");
ERR_print_errors(bio_err);
goto end;
}
}
else
{
out = BIO_new_fp(OPENSSL_TYPE__FILE_STDOUT, BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
if (sigfile)
{
BIO *sigbio = BIO_new_file(sigfile, "rb");
if (!sigbio)
{
BIO_printf(bio_err, "Can't open signature file %s\n",
sigfile);
goto end;
}
siglen = bio_to_mem(&sig, keysize * 10, sigbio);
BIO_free(sigbio);
if (siglen <= 0)
{
BIO_printf(bio_err, "Error reading signature data\n");
goto end;
}
}
if (in)
{
/* Read the input data */
buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
if(buf_inlen <= 0)
{
BIO_printf(bio_err, "Error reading input Data\n");
TINYCLR_SSL_EXIT(1);
}
if(rev)
{
size_t i;
unsigned char ctmp;
size_t l = (size_t)buf_inlen;
for(i = 0; i < l/2; i++)
{
ctmp = buf_in[i];
buf_in[i] = buf_in[l - 1 - i];
buf_in[l - 1 - i] = ctmp;
}
}
}
if(pkey_op == EVP_PKEY_OP_VERIFY)
{
rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
buf_in, (size_t)buf_inlen);
if (rv == 0)
BIO_puts(out, "Signature Verification Failure\n");
else if (rv == 1)
BIO_puts(out, "Signature Verified Successfully\n");
if (rv >= 0)
goto end;
}
else
{
rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
buf_in, (size_t)buf_inlen);
if (rv > 0)
{
buf_out = (unsigned char*)OPENSSL_malloc(buf_outlen);
if (!buf_out)
rv = -1;
else
rv = do_keyop(ctx, pkey_op,
buf_out, (size_t *)&buf_outlen,
buf_in, (size_t)buf_inlen);
}
}
if(rv <= 0)
{
BIO_printf(bio_err, "Public Key operation error\n");
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
if(asn1parse)
{
if(!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
ERR_print_errors(bio_err);
}
else if(hexdump)
BIO_dump(out, (char *)buf_out, buf_outlen);
else
BIO_write(out, buf_out, buf_outlen);
end:
if (ctx)
EVP_PKEY_CTX_free(ctx);
BIO_free(in);
BIO_free_all(out);
if (buf_in)
OPENSSL_free(buf_in);
if (buf_out)
OPENSSL_free(buf_out);
if (sig)
OPENSSL_free(sig);
return ret;
}
static int pgpVerifySigRSA(pgpDigAlg pgpkey, pgpDigAlg pgpsig,
uint8_t *hash, size_t hashlen, int hash_algo)
{
int rc, ret;
EVP_PKEY_CTX *pkey_ctx = NULL;
struct pgpDigSigRSA_s *sig = pgpsig->data;
void *padded_sig = NULL;
struct pgpDigKeyRSA_s *key = pgpkey->data;
if (!constructRSASigningKey(key)) {
rc = 1;
goto done;
}
pkey_ctx = EVP_PKEY_CTX_new(key->evp_pkey, NULL);
if (!pkey_ctx) {
rc = 1;
goto done;
}
ret = EVP_PKEY_verify_init(pkey_ctx);
if (ret < 0) {
rc = 1;
goto done;
}
ret = EVP_PKEY_CTX_set_rsa_padding(pkey_ctx, RSA_PKCS1_PADDING);
if (ret < 0) {
rc = 1;
goto done;
}
ret = EVP_PKEY_CTX_set_signature_md(pkey_ctx, getEVPMD(hash_algo));
if (ret < 0) {
rc = 1;
goto done;
}
int pkey_len = EVP_PKEY_size(key->evp_pkey);
padded_sig = xcalloc(1, pkey_len);
if (!BN_bn2binpad(sig->bn, padded_sig, pkey_len)) {
rc = 1;
goto done;
}
ret = EVP_PKEY_verify(pkey_ctx, padded_sig, pkey_len, hash, hashlen);
if (ret == 1)
{
/* Success */
rc = 0;
}
else
{
/* Failure */
rc = 1;
}
done:
EVP_PKEY_CTX_free(pkey_ctx);
free(padded_sig);
return rc;
}
int main(int argc, char **argv)
{
EVP_PKEY *private_key, *public_key;
EVP_PKEY_CTX *pkey_ctx;
EVP_MD_CTX *md_ctx;
const EVP_MD *digest_algo;
char *private_key_name, *public_key_name;
unsigned char sig[4096];
size_t sig_len;
unsigned char md[128];
size_t md_len;
unsigned digest_len;
char *key_pass = NULL;
const char *module_path, *efile;
ENGINE *e;
int ret;
if (argc < 5) {
fprintf(stderr, "usage: %s [PIN] [CONF] [private key URL] [public key URL] [module]\n", argv[0]);
fprintf(stderr, "\n");
exit(1);
}
key_pass = argv[1];
efile = argv[2];
private_key_name = argv[3];
public_key_name = argv[4];
module_path = argv[5];
ret = CONF_modules_load_file(efile, "engines", 0);
if (ret <= 0) {
fprintf(stderr, "cannot load %s\n", efile);
display_openssl_errors(__LINE__);
exit(1);
}
ENGINE_add_conf_module();
#if OPENSSL_VERSION_NUMBER>=0x10100000
OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS \
| OPENSSL_INIT_ADD_ALL_DIGESTS \
| OPENSSL_INIT_LOAD_CONFIG, NULL);
#else
OpenSSL_add_all_algorithms();
OpenSSL_add_all_digests();
ERR_load_crypto_strings();
#endif
ERR_clear_error();
ENGINE_load_builtin_engines();
e = ENGINE_by_id("pkcs11");
if (e == NULL) {
display_openssl_errors(__LINE__);
exit(1);
}
if (!ENGINE_ctrl_cmd_string(e, "VERBOSE", NULL, 0)) {
display_openssl_errors(__LINE__);
exit(1);
}
if (!ENGINE_ctrl_cmd_string(e, "MODULE_PATH", module_path, 0)) {
display_openssl_errors(__LINE__);
exit(1);
}
if (!ENGINE_init(e)) {
display_openssl_errors(__LINE__);
exit(1);
}
if (key_pass && !ENGINE_ctrl_cmd_string(e, "PIN", key_pass, 0)) {
display_openssl_errors(__LINE__);
exit(1);
}
private_key = ENGINE_load_private_key(e, private_key_name, NULL, NULL);
if (private_key == NULL) {
fprintf(stderr, "cannot load: %s\n", private_key_name);
display_openssl_errors(__LINE__);
exit(1);
}
public_key = ENGINE_load_public_key(e, public_key_name, NULL, NULL);
if (public_key == NULL) {
fprintf(stderr, "cannot load: %s\n", public_key_name);
display_openssl_errors(__LINE__);
exit(1);
}
digest_algo = EVP_get_digestbyname("sha256");
#define TEST_DATA "test data"
md_ctx = EVP_MD_CTX_create();
if (EVP_DigestInit(md_ctx, digest_algo) <= 0) {
display_openssl_errors(__LINE__);
exit(1);
}
if (EVP_DigestUpdate(md_ctx, TEST_DATA, sizeof(TEST_DATA)) <= 0) {
display_openssl_errors(__LINE__);
exit(1);
}
digest_len = sizeof(md);
if (EVP_DigestFinal(md_ctx, md, &digest_len) <= 0) {
display_openssl_errors(__LINE__);
exit(1);
}
md_len = digest_len;
EVP_MD_CTX_destroy(md_ctx);
/* Sign the hash */
pkey_ctx = EVP_PKEY_CTX_new(private_key, e);
if (pkey_ctx == NULL) {
fprintf(stderr, "Could not create context\n");
display_openssl_errors(__LINE__);
exit(1);
}
if (EVP_PKEY_sign_init(pkey_ctx) <= 0) {
fprintf(stderr, "Could not init signature\n");
display_openssl_errors(__LINE__);
exit(1);
}
if (EVP_PKEY_CTX_set_rsa_padding(pkey_ctx, RSA_PKCS1_PSS_PADDING) <= 0) {
fprintf(stderr, "Could not set padding\n");
display_openssl_errors(__LINE__);
exit(1);
}
if (EVP_PKEY_CTX_set_signature_md(pkey_ctx, digest_algo) <= 0) {
fprintf(stderr, "Could not set message digest algorithm\n");
display_openssl_errors(__LINE__);
exit(1);
}
sig_len = sizeof(sig);
if (EVP_PKEY_sign(pkey_ctx, sig, &sig_len, md,
EVP_MD_size(digest_algo)) <= 0) {
display_openssl_errors(__LINE__);
exit(1);
}
EVP_PKEY_CTX_free(pkey_ctx);
printf("Signature created\n");
#if OPENSSL_VERSION_NUMBER >= 0x1000000fL
pkey_ctx = EVP_PKEY_CTX_new(public_key, e);
if (pkey_ctx == NULL) {
fprintf(stderr, "Could not create context\n");
display_openssl_errors(__LINE__);
exit(1);
}
if (EVP_PKEY_verify_init(pkey_ctx) <= 0) {
fprintf(stderr, "Could not init verify\n");
display_openssl_errors(__LINE__);
exit(1);
}
if (EVP_PKEY_CTX_set_rsa_padding(pkey_ctx, RSA_PKCS1_PSS_PADDING) <= 0) {
fprintf(stderr, "Could not set padding\n");
display_openssl_errors(__LINE__);
exit(1);
}
if (EVP_PKEY_CTX_set_signature_md(pkey_ctx, digest_algo) <= 0) {
fprintf(stderr, "Could not set message digest algorithm\n");
display_openssl_errors(__LINE__);
exit(1);
}
ret = EVP_PKEY_verify(pkey_ctx, sig, sig_len, md, md_len);
if (ret < 0) {
display_openssl_errors(__LINE__);
exit(1);
}
EVP_PKEY_CTX_free(pkey_ctx);
if (ret == 1) {
printf("Signature verified\n");
}
else {
printf("Verification failed\n");
display_openssl_errors(__LINE__);
exit(1);
}
#else /* OPENSSL_VERSION_NUMBER >= 0x1000000fL */
printf("Unable to verify signature with %s\n", OPENSSL_VERSION_TEXT);
#endif /* OPENSSL_VERSION_NUMBER >= 0x1000000fL */
ENGINE_finish(e);
CONF_modules_unload(1);
return 0;
}
DWORD
VmDirVerifyRSASignature(
EVP_PKEY* pPubKey,
const EVP_MD* digestMethod,
const unsigned char* pData,
size_t dataSize,
const unsigned char* pSignature,
size_t signatureSize,
PBOOLEAN pVerified
)
{
DWORD dwError = 0;
int retVal = 0;
unsigned char* pMd = NULL;
size_t mdSize = 0;
EVP_PKEY_CTX* pPubKeyCtx = NULL;
if (!pPubKey || !digestMethod || !pData || !pData || !pVerified)
{
BAIL_WITH_VMDIR_ERROR(dwError, VMDIR_ERROR_INVALID_PARAMETER);
}
dwError = VmDirComputeMessageDigest(digestMethod, pData, dataSize, &pMd, &mdSize);
BAIL_ON_VMDIR_ERROR(dwError);
pPubKeyCtx = EVP_PKEY_CTX_new(pPubKey, NULL);
if (!pPubKeyCtx)
{
VMDIR_LOG_ERROR(
VMDIR_LOG_MASK_ALL,
"%s: EVP_PKEY_CTX_new returned NULL",
__FUNCTION__);
BAIL_WITH_VMDIR_ERROR(dwError, VMDIR_ERROR_SSL);
}
retVal = EVP_PKEY_verify_init(pPubKeyCtx);
if (retVal <= 0)
{
VMDIR_LOG_ERROR(
VMDIR_LOG_MASK_ALL,
"%s: EVP_PKEY_verify_init returned %d",
__FUNCTION__,
retVal);
BAIL_WITH_VMDIR_ERROR(dwError, VMDIR_ERROR_SSL);
}
retVal = EVP_PKEY_CTX_set_rsa_padding(pPubKeyCtx, RSA_PKCS1_PADDING);
if (retVal <= 0)
{
VMDIR_LOG_ERROR(
VMDIR_LOG_MASK_ALL,
"%s: EVP_PKEY_CTX_set_rsa_padding returned %d",
__FUNCTION__,
retVal);
BAIL_WITH_VMDIR_ERROR(dwError, VMDIR_ERROR_SSL);
}
retVal = EVP_PKEY_CTX_set_signature_md(pPubKeyCtx, digestMethod);
if (retVal <= 0)
{
VMDIR_LOG_ERROR(
VMDIR_LOG_MASK_ALL,
"%s: EVP_PKEY_CTX_set_signature_md returned %d",
__FUNCTION__,
retVal);
BAIL_WITH_VMDIR_ERROR(dwError, VMDIR_ERROR_SSL);
}
retVal = EVP_PKEY_verify(pPubKeyCtx, pSignature, signatureSize, pMd, mdSize);
if (retVal == 1)
{
*pVerified = TRUE;
}
else if (retVal == 0)
{
*pVerified = FALSE;
}
else
{
VMDIR_LOG_ERROR(
VMDIR_LOG_MASK_ALL,
"%s: EVP_PKEY_verify returned %d",
__FUNCTION__,
retVal);
BAIL_WITH_VMDIR_ERROR(dwError, VMDIR_ERROR_SSL);
}
cleanup:
VMDIR_SAFE_FREE_MEMORY(pMd);
EVP_PKEY_CTX_free(pPubKeyCtx);
return dwError;
error:
VMDIR_LOG_ERROR(
VMDIR_LOG_MASK_ALL,
"%s failed with error (%d)",
__FUNCTION__,
dwError);
goto cleanup;
}
int pkeyutl_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
ENGINE *e = NULL;
EVP_PKEY_CTX *ctx = NULL;
EVP_PKEY *pkey = NULL;
char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL;
char hexdump = 0, asn1parse = 0, rev = 0, *prog;
unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
OPTION_CHOICE o;
int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform = FORMAT_PEM;
int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
int engine_impl = 0;
int ret = 1, rv = -1;
size_t buf_outlen;
const char *inkey = NULL;
const char *peerkey = NULL;
const char *kdfalg = NULL;
int kdflen = 0;
STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
STACK_OF(OPENSSL_STRING) *pkeyopts_passin = NULL;
int rawin = 0;
const EVP_MD *md = NULL;
prog = opt_init(argc, argv, pkeyutl_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(pkeyutl_options);
ret = 0;
goto end;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_SIGFILE:
sigfile = opt_arg();
break;
case OPT_ENGINE_IMPL:
engine_impl = 1;
break;
case OPT_INKEY:
inkey = opt_arg();
break;
case OPT_PEERKEY:
peerkey = opt_arg();
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_PEERFORM:
if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform))
goto opthelp;
break;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform))
goto opthelp;
break;
case OPT_R_CASES:
if (!opt_rand(o))
goto end;
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_PUBIN:
key_type = KEY_PUBKEY;
break;
case OPT_CERTIN:
key_type = KEY_CERT;
break;
case OPT_ASN1PARSE:
asn1parse = 1;
break;
case OPT_HEXDUMP:
hexdump = 1;
break;
case OPT_SIGN:
pkey_op = EVP_PKEY_OP_SIGN;
break;
case OPT_VERIFY:
pkey_op = EVP_PKEY_OP_VERIFY;
break;
case OPT_VERIFYRECOVER:
pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
break;
case OPT_ENCRYPT:
pkey_op = EVP_PKEY_OP_ENCRYPT;
break;
case OPT_DECRYPT:
pkey_op = EVP_PKEY_OP_DECRYPT;
break;
case OPT_DERIVE:
pkey_op = EVP_PKEY_OP_DERIVE;
break;
case OPT_KDF:
pkey_op = EVP_PKEY_OP_DERIVE;
key_type = KEY_NONE;
kdfalg = opt_arg();
break;
case OPT_KDFLEN:
kdflen = atoi(opt_arg());
break;
case OPT_REV:
rev = 1;
break;
case OPT_PKEYOPT:
if ((pkeyopts == NULL &&
(pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) ||
sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
BIO_puts(bio_err, "out of memory\n");
goto end;
}
break;
case OPT_PKEYOPT_PASSIN:
if ((pkeyopts_passin == NULL &&
(pkeyopts_passin = sk_OPENSSL_STRING_new_null()) == NULL) ||
sk_OPENSSL_STRING_push(pkeyopts_passin, opt_arg()) == 0) {
BIO_puts(bio_err, "out of memory\n");
goto end;
}
break;
case OPT_RAWIN:
rawin = 1;
break;
case OPT_DIGEST:
if (!opt_md(opt_arg(), &md))
goto end;
break;
}
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
if (rawin && pkey_op != EVP_PKEY_OP_SIGN && pkey_op != EVP_PKEY_OP_VERIFY) {
BIO_printf(bio_err,
"%s: -rawin can only be used with -sign or -verify\n",
prog);
goto opthelp;
}
if (md != NULL && !rawin) {
BIO_printf(bio_err,
"%s: -digest can only be used with -rawin\n",
prog);
goto opthelp;
}
if (rawin && rev) {
BIO_printf(bio_err, "%s: -rev cannot be used with raw input\n",
prog);
goto opthelp;
}
if (kdfalg != NULL) {
if (kdflen == 0) {
BIO_printf(bio_err,
"%s: no KDF length given (-kdflen parameter).\n", prog);
goto opthelp;
}
} else if (inkey == NULL) {
BIO_printf(bio_err,
"%s: no private key given (-inkey parameter).\n", prog);
goto opthelp;
} else if (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE) {
BIO_printf(bio_err,
"%s: no peer key given (-peerkey parameter).\n", prog);
goto opthelp;
}
ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
passinarg, pkey_op, e, engine_impl, &pkey);
if (ctx == NULL) {
BIO_printf(bio_err, "%s: Error initializing context\n", prog);
ERR_print_errors(bio_err);
goto end;
}
if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) {
BIO_printf(bio_err, "%s: Error setting up peer key\n", prog);
ERR_print_errors(bio_err);
goto end;
}
if (pkeyopts != NULL) {
int num = sk_OPENSSL_STRING_num(pkeyopts);
int i;
for (i = 0; i < num; ++i) {
const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i);
if (pkey_ctrl_string(ctx, opt) <= 0) {
BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
prog, opt);
ERR_print_errors(bio_err);
goto end;
}
}
}
if (pkeyopts_passin != NULL) {
int num = sk_OPENSSL_STRING_num(pkeyopts_passin);
int i;
for (i = 0; i < num; i++) {
char *opt = sk_OPENSSL_STRING_value(pkeyopts_passin, i);
char *passin = strchr(opt, ':');
char *passwd;
if (passin == NULL) {
/* Get password interactively */
char passwd_buf[4096];
BIO_snprintf(passwd_buf, sizeof(passwd_buf), "Enter %s: ", opt);
EVP_read_pw_string(passwd_buf, sizeof(passwd_buf) - 1,
passwd_buf, 0);
passwd = OPENSSL_strdup(passwd_buf);
if (passwd == NULL) {
BIO_puts(bio_err, "out of memory\n");
goto end;
}
} else {
/* Get password as a passin argument: First split option name
* and passphrase argument into two strings */
*passin = 0;
passin++;
if (app_passwd(passin, NULL, &passwd, NULL) == 0) {
BIO_printf(bio_err, "failed to get '%s'\n", opt);
goto end;
}
}
if (EVP_PKEY_CTX_ctrl_str(ctx, opt, passwd) <= 0) {
BIO_printf(bio_err, "%s: Can't set parameter \"%s\":\n",
prog, opt);
goto end;
}
OPENSSL_free(passwd);
}
}
if (sigfile != NULL && (pkey_op != EVP_PKEY_OP_VERIFY)) {
BIO_printf(bio_err,
"%s: Signature file specified for non verify\n", prog);
goto end;
}
if (sigfile == NULL && (pkey_op == EVP_PKEY_OP_VERIFY)) {
BIO_printf(bio_err,
"%s: No signature file specified for verify\n", prog);
goto end;
}
if (pkey_op != EVP_PKEY_OP_DERIVE) {
in = bio_open_default(infile, 'r', FORMAT_BINARY);
if (in == NULL)
goto end;
}
out = bio_open_default(outfile, 'w', FORMAT_BINARY);
if (out == NULL)
goto end;
if (sigfile != NULL) {
BIO *sigbio = BIO_new_file(sigfile, "rb");
if (sigbio == NULL) {
BIO_printf(bio_err, "Can't open signature file %s\n", sigfile);
goto end;
}
siglen = bio_to_mem(&sig, keysize * 10, sigbio);
BIO_free(sigbio);
if (siglen < 0) {
BIO_printf(bio_err, "Error reading signature data\n");
goto end;
}
}
/* Raw input data is handled elsewhere */
if (in != NULL && !rawin) {
/* Read the input data */
buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
if (buf_inlen < 0) {
BIO_printf(bio_err, "Error reading input Data\n");
goto end;
}
if (rev) {
size_t i;
unsigned char ctmp;
size_t l = (size_t)buf_inlen;
for (i = 0; i < l / 2; i++) {
ctmp = buf_in[i];
buf_in[i] = buf_in[l - 1 - i];
buf_in[l - 1 - i] = ctmp;
}
}
}
/* Sanity check the input if the input is not raw */
if (!rawin
&& buf_inlen > EVP_MAX_MD_SIZE
&& (pkey_op == EVP_PKEY_OP_SIGN
|| pkey_op == EVP_PKEY_OP_VERIFY
|| pkey_op == EVP_PKEY_OP_VERIFYRECOVER)) {
BIO_printf(bio_err,
"Error: The input data looks too long to be a hash\n");
goto end;
}
if (pkey_op == EVP_PKEY_OP_VERIFY) {
if (rawin) {
rv = do_raw_keyop(pkey_op, ctx, md, pkey, in, sig, siglen,
NULL, 0);
} else {
rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen,
buf_in, (size_t)buf_inlen);
}
if (rv == 1) {
BIO_puts(out, "Signature Verified Successfully\n");
ret = 0;
} else {
BIO_puts(out, "Signature Verification Failure\n");
}
goto end;
}
if (kdflen != 0) {
buf_outlen = kdflen;
rv = 1;
} else {
if (rawin) {
/* rawin allocates the buffer in do_raw_keyop() */
rv = do_raw_keyop(pkey_op, ctx, md, pkey, in, NULL, 0,
&buf_out, (size_t *)&buf_outlen);
} else {
rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
buf_in, (size_t)buf_inlen);
if (rv > 0 && buf_outlen != 0) {
buf_out = app_malloc(buf_outlen, "buffer output");
rv = do_keyop(ctx, pkey_op,
buf_out, (size_t *)&buf_outlen,
buf_in, (size_t)buf_inlen);
}
}
}
if (rv <= 0) {
if (pkey_op != EVP_PKEY_OP_DERIVE) {
BIO_puts(bio_err, "Public Key operation error\n");
} else {
BIO_puts(bio_err, "Key derivation failed\n");
}
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
if (asn1parse) {
if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
ERR_print_errors(bio_err);
} else if (hexdump) {
BIO_dump(out, (char *)buf_out, buf_outlen);
} else {
BIO_write(out, buf_out, buf_outlen);
}
end:
EVP_PKEY_CTX_free(ctx);
release_engine(e);
BIO_free(in);
BIO_free_all(out);
OPENSSL_free(buf_in);
OPENSSL_free(buf_out);
OPENSSL_free(sig);
sk_OPENSSL_STRING_free(pkeyopts);
sk_OPENSSL_STRING_free(pkeyopts_passin);
return ret;
}
bool bdoc::X509Cert::verifySignature(int digestMethod, int digestSize,
std::vector<unsigned char> digest,
std::vector<unsigned char> signature)
{
int result = 0;
EVP_PKEY* key = getPublicKey();
switch (EVP_PKEY_type(key->type)) {
case EVP_PKEY_RSA:
{
if (digest.size() > static_cast<size_t>(digestSize)) {
// The digest already has an ASN.1 DigestInfo header.
break;
}
X509_SIG *sig = X509_SIG_new();
// Prefer set0 to set_md, so we don't have to initialize the
// digest lookup table with OpenSSL_add_all_digests. None of
// our supported digests have parameters anyway.
X509_ALGOR_set0(sig->algor, OBJ_nid2obj(digestMethod), V_ASN1_NULL, NULL);
ASN1_OCTET_STRING_set(sig->digest, &digest[0], digest.size());
unsigned char *asn1 = NULL;
size_t asn1_len = i2d_X509_SIG(sig, &asn1);
digest = std::vector<unsigned char>(asn1, asn1 + asn1_len);
X509_SIG_free(sig);
break;
}
case EVP_PKEY_EC:
{
ECDSA_SIG *sig = ECDSA_SIG_new();
// signature is just r and s concatenated, so split them.
size_t n_len = signature.size() >> 1;
BN_bin2bn(&signature[0], n_len, sig->r);
BN_bin2bn(&signature[n_len], n_len, sig->s);
unsigned char *asn1 = NULL;
size_t asn1_len = i2d_ECDSA_SIG(sig, &asn1);
signature = std::vector<unsigned char>(asn1, asn1 + asn1_len);
ECDSA_SIG_free(sig);
break;
}
default:
THROW_STACK_EXCEPTION("Certificate '%s' has an unsupported "
"public key type, can not verify signature.",
getSubject().c_str());
}
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(key, NULL);
if (!ctx) {
EVP_PKEY_free(key);
THROW_STACK_EXCEPTION("Creating signature verification "
"context failed: %s",
ERR_reason_error_string(ERR_get_error()));
}
if (EVP_PKEY_verify_init(ctx) <= 0) {
EVP_PKEY_CTX_free(ctx);
EVP_PKEY_free(key);
THROW_STACK_EXCEPTION("Initializing signature "
"verification context failed: %s",
ERR_reason_error_string(ERR_get_error()));
}
result = EVP_PKEY_verify(ctx, &signature[0], signature.size(),
&digest[0], digest.size());
if (result < 0) {
EVP_PKEY_CTX_free(ctx);
EVP_PKEY_free(key);
THROW_STACK_EXCEPTION("Error during signature verification: %s",
ERR_reason_error_string(ERR_get_error()));
}
EVP_PKEY_CTX_free(ctx);
EVP_PKEY_free(key);
return (result == 1);
}
