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pki_crypto: Added pki_sign_data() and pki_verify_data_signature()

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pki_sign_data() uses the given private key and hash algorithm to sign
the data using the OpenSSL EVP interface.  The corresponding function
pki_verify_data_signature() receives the signature, the signed data, and
the public key to verify the signature.

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Anderson Toshiyuki Sasaki
2019-05-02 13:56:15 +02:00
committed by Andreas Schneider
parent 33af736555
commit fd9446553b
5 changed files with 498 additions and 0 deletions
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61
tests/unittests/torture_pki_dsa.c
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@@ -169,6 +169,66 @@ static void torture_pki_dsa_import_privkey_base64(void **state)
}
#ifdef HAVE_LIBCRYPTO
static int test_sign_verify_data(ssh_key key,
enum ssh_digest_e hash_type,
const unsigned char *input,
size_t input_len)
{
ssh_signature sig;
ssh_key pubkey = NULL;
int rc;
/* Get the public key to verify signature */
rc = ssh_pki_export_privkey_to_pubkey(key, &pubkey);
assert_int_equal(rc, SSH_OK);
assert_non_null(pubkey);
/* Sign the buffer */
sig = pki_sign_data(key, hash_type, input, input_len);
assert_non_null(sig);
/* Verify signature */
rc = pki_verify_data_signature(sig, pubkey, input, input_len);
assert_int_equal(rc, SSH_OK);
ssh_signature_free(sig);
SSH_KEY_FREE(pubkey);
return rc;
}
static void torture_pki_sign_data_dsa(void **state)
{
int rc;
ssh_key key = NULL;
(void) state;
/* Setup */
rc = ssh_pki_generate(SSH_KEYTYPE_DSS, 2048, &key);
assert_int_equal(rc, SSH_OK);
assert_non_null(key);
/* Test using automatic digest */
rc = test_sign_verify_data(key, SSH_DIGEST_AUTO, DSA_HASH, 20);
assert_int_equal(rc, SSH_OK);
/* Test using SHA1 */
rc = test_sign_verify_data(key, SSH_DIGEST_SHA1, DSA_HASH, 20);
assert_int_equal(rc, SSH_OK);
/* Test using SHA256 */
rc = test_sign_verify_data(key, SSH_DIGEST_SHA256, DSA_HASH, 20);
assert_int_equal(rc, SSH_OK);
/* Test using SHA512 */
rc = test_sign_verify_data(key, SSH_DIGEST_SHA512, DSA_HASH, 20);
assert_int_equal(rc, SSH_OK);
/* Cleanup */
SSH_KEY_FREE(key);
}
static void torture_pki_dsa_write_privkey(void **state)
{
ssh_key origkey = NULL;
@@ -708,6 +768,7 @@ int torture_run_tests(void)
cmocka_unit_test_setup_teardown(torture_pki_dsa_write_privkey,
setup_dsa_key,
teardown),
cmocka_unit_test(torture_pki_sign_data_dsa),
#endif
cmocka_unit_test(torture_pki_dsa_import_privkey_base64_passphrase),
cmocka_unit_test(torture_pki_dsa_import_openssh_privkey_base64_passphrase),