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Unified Diff: srtp/crypto/cipher/aes_gcm_ossl.c

Issue 2344973002: Update libsrtp to version 2.0 (Closed)
Patch Set: Add '.' back to include_dirs Created 4 years, 2 months ago
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Index: srtp/crypto/cipher/aes_gcm_ossl.c
diff --git a/srtp/crypto/cipher/aes_gcm_ossl.c b/srtp/crypto/cipher/aes_gcm_ossl.c
deleted file mode 100644
index 4bff8dbebc922a9df4dc186b70a08074ce0b7ddd..0000000000000000000000000000000000000000
--- a/srtp/crypto/cipher/aes_gcm_ossl.c
+++ /dev/null
@@ -1,572 +0,0 @@
-/*
- * aes_gcm_ossl.c
- *
- * AES Galois Counter Mode
- *
- * John A. Foley
- * Cisco Systems, Inc.
- *
- */
-
-/*
- *
- * Copyright (c) 2013, Cisco Systems, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * Neither the name of the Cisco Systems, Inc. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifdef HAVE_CONFIG_H
- #include <config.h>
-#endif
-
-#include <openssl/evp.h>
-#include "aes_icm_ossl.h"
-#include "aes_gcm_ossl.h"
-#include "alloc.h"
-#include "crypto_types.h"
-
-
-debug_module_t mod_aes_gcm = {
- 0, /* debugging is off by default */
- "aes gcm" /* printable module name */
-};
-
-/*
- * The following are the global singleton instances for the
- * 128-bit and 256-bit GCM ciphers.
- */
-extern cipher_type_t aes_gcm_128_openssl;
-extern cipher_type_t aes_gcm_256_openssl;
-
-/*
- * For now we only support 8 and 16 octet tags. The spec allows for
- * optional 12 byte tag, which may be supported in the future.
- */
-#define GCM_AUTH_TAG_LEN 16
-#define GCM_AUTH_TAG_LEN_8 8
-
-
-/*
- * This function allocates a new instance of this crypto engine.
- * The key_len parameter should be one of 28 or 44 for
- * AES-128-GCM or AES-256-GCM respectively. Note that the
- * key length includes the 14 byte salt value that is used when
- * initializing the KDF.
- */
-err_status_t aes_gcm_openssl_alloc (cipher_t **c, int key_len, int tlen)
-{
- aes_gcm_ctx_t *gcm;
- int tmp;
- uint8_t *allptr;
-
- debug_print(mod_aes_gcm, "allocating cipher with key length %d", key_len);
- debug_print(mod_aes_gcm, "allocating cipher with tag length %d", tlen);
-
- /*
- * Verify the key_len is valid for one of: AES-128/256
- */
- if (key_len != AES_128_GCM_KEYSIZE_WSALT &&
- key_len != AES_256_GCM_KEYSIZE_WSALT) {
- return (err_status_bad_param);
- }
-
- if (tlen != GCM_AUTH_TAG_LEN &&
- tlen != GCM_AUTH_TAG_LEN_8) {
- return (err_status_bad_param);
- }
-
- /* allocate memory a cipher of type aes_gcm */
- tmp = sizeof(cipher_t) + sizeof(aes_gcm_ctx_t);
- allptr = crypto_alloc(tmp);
- if (allptr == NULL) {
- return (err_status_alloc_fail);
- }
-
- /* set pointers */
- *c = (cipher_t*)allptr;
- (*c)->state = allptr + sizeof(cipher_t);
- gcm = (aes_gcm_ctx_t *)(*c)->state;
-
- /* increment ref_count */
- switch (key_len) {
- case AES_128_GCM_KEYSIZE_WSALT:
- (*c)->type = &aes_gcm_128_openssl;
- (*c)->algorithm = AES_128_GCM;
- aes_gcm_128_openssl.ref_count++;
- ((aes_gcm_ctx_t*)(*c)->state)->key_size = AES_128_KEYSIZE;
- ((aes_gcm_ctx_t*)(*c)->state)->tag_len = tlen;
- break;
- case AES_256_GCM_KEYSIZE_WSALT:
- (*c)->type = &aes_gcm_256_openssl;
- (*c)->algorithm = AES_256_GCM;
- aes_gcm_256_openssl.ref_count++;
- ((aes_gcm_ctx_t*)(*c)->state)->key_size = AES_256_KEYSIZE;
- ((aes_gcm_ctx_t*)(*c)->state)->tag_len = tlen;
- break;
- }
-
- /* set key size */
- (*c)->key_len = key_len;
- EVP_CIPHER_CTX_init(&gcm->ctx);
-
- return (err_status_ok);
-}
-
-
-/*
- * This function deallocates a GCM session
- */
-err_status_t aes_gcm_openssl_dealloc (cipher_t *c)
-{
- aes_gcm_ctx_t *ctx;
-
- ctx = (aes_gcm_ctx_t*)c->state;
- if (ctx) {
- EVP_CIPHER_CTX_cleanup(&ctx->ctx);
- /* decrement ref_count for the appropriate engine */
- switch (ctx->key_size) {
- case AES_256_KEYSIZE:
- aes_gcm_256_openssl.ref_count--;
- break;
- case AES_128_KEYSIZE:
- aes_gcm_128_openssl.ref_count--;
- break;
- default:
- return (err_status_dealloc_fail);
- break;
- }
- }
-
- /* zeroize entire state*/
- octet_string_set_to_zero((uint8_t*)c, sizeof(cipher_t) + sizeof(aes_gcm_ctx_t));
-
- /* free memory */
- crypto_free(c);
-
- return (err_status_ok);
-}
-
-/*
- * aes_gcm_openssl_context_init(...) initializes the aes_gcm_context
- * using the value in key[].
- *
- * the key is the secret key
- */
-err_status_t aes_gcm_openssl_context_init (aes_gcm_ctx_t *c, const uint8_t *key)
-{
- c->dir = direction_any;
-
- /* copy key to be used later when CiscoSSL crypto context is created */
- v128_copy_octet_string((v128_t*)&c->key, key);
-
- if (c->key_size == AES_256_KEYSIZE) {
- debug_print(mod_aes_gcm, "Copying last 16 bytes of key: %s",
- v128_hex_string((v128_t*)(key + AES_128_KEYSIZE)));
- v128_copy_octet_string(((v128_t*)(&c->key.v8)) + 1,
- key + AES_128_KEYSIZE);
- }
-
- debug_print(mod_aes_gcm, "key: %s", v128_hex_string((v128_t*)&c->key));
-
- EVP_CIPHER_CTX_cleanup(&c->ctx);
-
- return (err_status_ok);
-}
-
-
-/*
- * aes_gcm_openssl_set_iv(c, iv) sets the counter value to the exor of iv with
- * the offset
- */
-err_status_t aes_gcm_openssl_set_iv (aes_gcm_ctx_t *c, void *iv,
- int direction)
-{
- const EVP_CIPHER *evp;
-
- if (direction != direction_encrypt && direction != direction_decrypt) {
- return (err_status_bad_param);
- }
- c->dir = direction;
-
- debug_print(mod_aes_gcm, "setting iv: %s", v128_hex_string(iv));
-
- switch (c->key_size) {
- case AES_256_KEYSIZE:
- evp = EVP_aes_256_gcm();
- break;
- case AES_128_KEYSIZE:
- evp = EVP_aes_128_gcm();
- break;
- default:
- return (err_status_bad_param);
- break;
- }
-
- if (!EVP_CipherInit_ex(&c->ctx, evp, NULL, (const unsigned char*)&c->key.v8,
- NULL, (c->dir == direction_encrypt ? 1 : 0))) {
- return (err_status_init_fail);
- }
-
- /* set IV len and the IV value, the followiong 3 calls are required */
- if (!EVP_CIPHER_CTX_ctrl(&c->ctx, EVP_CTRL_GCM_SET_IVLEN, 12, 0)) {
- return (err_status_init_fail);
- }
- if (!EVP_CIPHER_CTX_ctrl(&c->ctx, EVP_CTRL_GCM_SET_IV_FIXED, -1, iv)) {
- return (err_status_init_fail);
- }
- if (!EVP_CIPHER_CTX_ctrl(&c->ctx, EVP_CTRL_GCM_IV_GEN, 0, iv)) {
- return (err_status_init_fail);
- }
-
- return (err_status_ok);
-}
-
-/*
- * This function processes the AAD
- *
- * Parameters:
- * c Crypto context
- * aad Additional data to process for AEAD cipher suites
- * aad_len length of aad buffer
- */
-err_status_t aes_gcm_openssl_set_aad (aes_gcm_ctx_t *c, unsigned char *aad,
- unsigned int aad_len)
-{
- int rv;
-
- /*
- * Set dummy tag, OpenSSL requires the Tag to be set before
- * processing AAD
- */
- unsigned char dummy_tag[GCM_AUTH_TAG_LEN];
- memset(dummy_tag, 0x0, GCM_AUTH_TAG_LEN);
- EVP_CIPHER_CTX_ctrl(&c->ctx, EVP_CTRL_GCM_SET_TAG, c->tag_len, &dummy_tag);
-
- rv = EVP_Cipher(&c->ctx, NULL, aad, aad_len);
- if (rv != aad_len) {
- return (err_status_algo_fail);
- } else {
- return (err_status_ok);
- }
-}
-
-/*
- * This function encrypts a buffer using AES GCM mode
- *
- * Parameters:
- * c Crypto context
- * buf data to encrypt
- * enc_len length of encrypt buffer
- */
-err_status_t aes_gcm_openssl_encrypt (aes_gcm_ctx_t *c, unsigned char *buf,
- unsigned int *enc_len)
-{
- if (c->dir != direction_encrypt && c->dir != direction_decrypt) {
- return (err_status_bad_param);
- }
-
- /*
- * Encrypt the data
- */
- EVP_Cipher(&c->ctx, buf, buf, *enc_len);
-
- return (err_status_ok);
-}
-
-/*
- * This function calculates and returns the GCM tag for a given context.
- * This should be called after encrypting the data. The *len value
- * is increased by the tag size. The caller must ensure that *buf has
- * enough room to accept the appended tag.
- *
- * Parameters:
- * c Crypto context
- * buf data to encrypt
- * len length of encrypt buffer
- */
-err_status_t aes_gcm_openssl_get_tag (aes_gcm_ctx_t *c, unsigned char *buf,
- int *len)
-{
- /*
- * Calculate the tag
- */
- EVP_Cipher(&c->ctx, NULL, NULL, 0);
-
- /*
- * Retreive the tag
- */
- EVP_CIPHER_CTX_ctrl(&c->ctx, EVP_CTRL_GCM_GET_TAG, c->tag_len, buf);
-
- /*
- * Increase encryption length by desired tag size
- */
- *len = c->tag_len;
-
- return (err_status_ok);
-}
-
-
-/*
- * This function decrypts a buffer using AES GCM mode
- *
- * Parameters:
- * c Crypto context
- * buf data to encrypt
- * enc_len length of encrypt buffer
- */
-err_status_t aes_gcm_openssl_decrypt (aes_gcm_ctx_t *c, unsigned char *buf,
- unsigned int *enc_len)
-{
- if (c->dir != direction_encrypt && c->dir != direction_decrypt) {
- return (err_status_bad_param);
- }
-
- /*
- * Set the tag before decrypting
- */
- EVP_CIPHER_CTX_ctrl(&c->ctx, EVP_CTRL_GCM_SET_TAG, c->tag_len,
- buf + (*enc_len - c->tag_len));
- EVP_Cipher(&c->ctx, buf, buf, *enc_len - c->tag_len);
-
- /*
- * Check the tag
- */
- if (EVP_Cipher(&c->ctx, NULL, NULL, 0)) {
- return (err_status_auth_fail);
- }
-
- /*
- * Reduce the buffer size by the tag length since the tag
- * is not part of the original payload
- */
- *enc_len -= c->tag_len;
-
- return (err_status_ok);
-}
-
-
-
-/*
- * Name of this crypto engine
- */
-char aes_gcm_128_openssl_description[] = "AES-128 GCM using openssl";
-char aes_gcm_256_openssl_description[] = "AES-256 GCM using openssl";
-
-
-/*
- * KAT values for AES self-test. These
- * values we're derived from independent test code
- * using OpenSSL.
- */
-uint8_t aes_gcm_test_case_0_key[AES_128_GCM_KEYSIZE_WSALT] = {
- 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
- 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
- 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
- 0x09, 0x0a, 0x0b, 0x0c,
-};
-
-uint8_t aes_gcm_test_case_0_iv[12] = {
- 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
- 0xde, 0xca, 0xf8, 0x88
-};
-
-uint8_t aes_gcm_test_case_0_plaintext[60] = {
- 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
- 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
- 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
- 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
- 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
- 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
- 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
- 0xba, 0x63, 0x7b, 0x39
-};
-
-uint8_t aes_gcm_test_case_0_aad[20] = {
- 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
- 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
- 0xab, 0xad, 0xda, 0xd2
-};
-
-uint8_t aes_gcm_test_case_0_ciphertext[76] = {
- 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
- 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
- 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
- 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
- 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
- 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
- 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
- 0x3d, 0x58, 0xe0, 0x91,
- /* the last 16 bytes are the tag */
- 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb,
- 0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47,
-};
-
-cipher_test_case_t aes_gcm_test_case_0a = {
- AES_128_GCM_KEYSIZE_WSALT, /* octets in key */
- aes_gcm_test_case_0_key, /* key */
- aes_gcm_test_case_0_iv, /* packet index */
- 60, /* octets in plaintext */
- aes_gcm_test_case_0_plaintext, /* plaintext */
- 68, /* octets in ciphertext */
- aes_gcm_test_case_0_ciphertext, /* ciphertext + tag */
- 20, /* octets in AAD */
- aes_gcm_test_case_0_aad, /* AAD */
- GCM_AUTH_TAG_LEN_8,
- NULL /* pointer to next testcase */
-};
-
-cipher_test_case_t aes_gcm_test_case_0 = {
- AES_128_GCM_KEYSIZE_WSALT, /* octets in key */
- aes_gcm_test_case_0_key, /* key */
- aes_gcm_test_case_0_iv, /* packet index */
- 60, /* octets in plaintext */
- aes_gcm_test_case_0_plaintext, /* plaintext */
- 76, /* octets in ciphertext */
- aes_gcm_test_case_0_ciphertext, /* ciphertext + tag */
- 20, /* octets in AAD */
- aes_gcm_test_case_0_aad, /* AAD */
- GCM_AUTH_TAG_LEN,
- &aes_gcm_test_case_0a /* pointer to next testcase */
-};
-
-uint8_t aes_gcm_test_case_1_key[AES_256_GCM_KEYSIZE_WSALT] = {
- 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
- 0xa5, 0x59, 0x09, 0xc5, 0x54, 0x66, 0x93, 0x1c,
- 0xaf, 0xf5, 0x26, 0x9a, 0x21, 0xd5, 0x14, 0xb2,
- 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
- 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
- 0x09, 0x0a, 0x0b, 0x0c,
-
-};
-
-uint8_t aes_gcm_test_case_1_iv[12] = {
- 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
- 0xde, 0xca, 0xf8, 0x88
-};
-
-uint8_t aes_gcm_test_case_1_plaintext[60] = {
- 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
- 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
- 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
- 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
- 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
- 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
- 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
- 0xba, 0x63, 0x7b, 0x39
-};
-
-uint8_t aes_gcm_test_case_1_aad[20] = {
- 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
- 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
- 0xab, 0xad, 0xda, 0xd2
-};
-
-uint8_t aes_gcm_test_case_1_ciphertext[76] = {
- 0x0b, 0x11, 0xcf, 0xaf, 0x68, 0x4d, 0xae, 0x46,
- 0xc7, 0x90, 0xb8, 0x8e, 0xb7, 0x6a, 0x76, 0x2a,
- 0x94, 0x82, 0xca, 0xab, 0x3e, 0x39, 0xd7, 0x86,
- 0x1b, 0xc7, 0x93, 0xed, 0x75, 0x7f, 0x23, 0x5a,
- 0xda, 0xfd, 0xd3, 0xe2, 0x0e, 0x80, 0x87, 0xa9,
- 0x6d, 0xd7, 0xe2, 0x6a, 0x7d, 0x5f, 0xb4, 0x80,
- 0xef, 0xef, 0xc5, 0x29, 0x12, 0xd1, 0xaa, 0x10,
- 0x09, 0xc9, 0x86, 0xc1,
- /* the last 16 bytes are the tag */
- 0x45, 0xbc, 0x03, 0xe6, 0xe1, 0xac, 0x0a, 0x9f,
- 0x81, 0xcb, 0x8e, 0x5b, 0x46, 0x65, 0x63, 0x1d,
-};
-
-cipher_test_case_t aes_gcm_test_case_1a = {
- AES_256_GCM_KEYSIZE_WSALT, /* octets in key */
- aes_gcm_test_case_1_key, /* key */
- aes_gcm_test_case_1_iv, /* packet index */
- 60, /* octets in plaintext */
- aes_gcm_test_case_1_plaintext, /* plaintext */
- 68, /* octets in ciphertext */
- aes_gcm_test_case_1_ciphertext, /* ciphertext + tag */
- 20, /* octets in AAD */
- aes_gcm_test_case_1_aad, /* AAD */
- GCM_AUTH_TAG_LEN_8,
- NULL /* pointer to next testcase */
-};
-
-cipher_test_case_t aes_gcm_test_case_1 = {
- AES_256_GCM_KEYSIZE_WSALT, /* octets in key */
- aes_gcm_test_case_1_key, /* key */
- aes_gcm_test_case_1_iv, /* packet index */
- 60, /* octets in plaintext */
- aes_gcm_test_case_1_plaintext, /* plaintext */
- 76, /* octets in ciphertext */
- aes_gcm_test_case_1_ciphertext, /* ciphertext + tag */
- 20, /* octets in AAD */
- aes_gcm_test_case_1_aad, /* AAD */
- GCM_AUTH_TAG_LEN,
- &aes_gcm_test_case_1a /* pointer to next testcase */
-};
-
-/*
- * This is the vector function table for this crypto engine.
- */
-cipher_type_t aes_gcm_128_openssl = {
- (cipher_alloc_func_t) aes_gcm_openssl_alloc,
- (cipher_dealloc_func_t) aes_gcm_openssl_dealloc,
- (cipher_init_func_t) aes_gcm_openssl_context_init,
- (cipher_set_aad_func_t) aes_gcm_openssl_set_aad,
- (cipher_encrypt_func_t) aes_gcm_openssl_encrypt,
- (cipher_decrypt_func_t) aes_gcm_openssl_decrypt,
- (cipher_set_iv_func_t) aes_gcm_openssl_set_iv,
- (cipher_get_tag_func_t) aes_gcm_openssl_get_tag,
- (char*) aes_gcm_128_openssl_description,
- (int) 0, /* instance count */
- (cipher_test_case_t*) &aes_gcm_test_case_0,
- (debug_module_t*) &mod_aes_gcm,
- (cipher_type_id_t) AES_128_GCM
-};
-
-/*
- * This is the vector function table for this crypto engine.
- */
-cipher_type_t aes_gcm_256_openssl = {
- (cipher_alloc_func_t) aes_gcm_openssl_alloc,
- (cipher_dealloc_func_t) aes_gcm_openssl_dealloc,
- (cipher_init_func_t) aes_gcm_openssl_context_init,
- (cipher_set_aad_func_t) aes_gcm_openssl_set_aad,
- (cipher_encrypt_func_t) aes_gcm_openssl_encrypt,
- (cipher_decrypt_func_t) aes_gcm_openssl_decrypt,
- (cipher_set_iv_func_t) aes_gcm_openssl_set_iv,
- (cipher_get_tag_func_t) aes_gcm_openssl_get_tag,
- (char*) aes_gcm_256_openssl_description,
- (int) 0, /* instance count */
- (cipher_test_case_t*) &aes_gcm_test_case_1,
- (debug_module_t*) &mod_aes_gcm,
- (cipher_type_id_t) AES_256_GCM
-};
-
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