| /* |
| * aes_gcm_nss.c |
| * |
| * AES Galois Counter Mode |
| * |
| * Richard L. Barnes |
| * Cisco Systems, Inc. |
| * |
| */ |
| |
| /* |
| * |
| * Copyright (c) 2013-2017, 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 "aes_gcm.h" |
| #include "alloc.h" |
| #include "err.h" /* for srtp_debug */ |
| #include "crypto_types.h" |
| #include "cipher_types.h" |
| #include <secerr.h> |
| #include <nspr.h> |
| |
| srtp_debug_module_t srtp_mod_aes_gcm = { |
| 0, /* debugging is off by default */ |
| "aes gcm nss" /* printable module name */ |
| }; |
| |
| /* |
| * 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_IV_LEN 12 |
| #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. |
| */ |
| static srtp_err_status_t srtp_aes_gcm_nss_alloc(srtp_cipher_t **c, |
| int key_len, |
| int tlen) |
| { |
| srtp_aes_gcm_ctx_t *gcm; |
| NSSInitContext *nss; |
| |
| debug_print(srtp_mod_aes_gcm, "allocating cipher with key length %d", |
| key_len); |
| debug_print(srtp_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 != SRTP_AES_GCM_128_KEY_LEN_WSALT && |
| key_len != SRTP_AES_GCM_256_KEY_LEN_WSALT) { |
| return (srtp_err_status_bad_param); |
| } |
| |
| if (tlen != GCM_AUTH_TAG_LEN && tlen != GCM_AUTH_TAG_LEN_8) { |
| return (srtp_err_status_bad_param); |
| } |
| |
| /* Initialize NSS equiv of NSS_NoDB_Init(NULL) */ |
| nss = NSS_InitContext("", "", "", "", NULL, |
| NSS_INIT_READONLY | NSS_INIT_NOCERTDB | |
| NSS_INIT_NOMODDB | NSS_INIT_FORCEOPEN | |
| NSS_INIT_OPTIMIZESPACE); |
| if (!nss) { |
| return (srtp_err_status_cipher_fail); |
| } |
| |
| /* allocate memory a cipher of type aes_gcm */ |
| *c = (srtp_cipher_t *)srtp_crypto_alloc(sizeof(srtp_cipher_t)); |
| if (*c == NULL) { |
| NSS_ShutdownContext(nss); |
| return (srtp_err_status_alloc_fail); |
| } |
| |
| gcm = (srtp_aes_gcm_ctx_t *)srtp_crypto_alloc(sizeof(srtp_aes_gcm_ctx_t)); |
| if (gcm == NULL) { |
| NSS_ShutdownContext(nss); |
| srtp_crypto_free(*c); |
| *c = NULL; |
| return (srtp_err_status_alloc_fail); |
| } |
| |
| gcm->nss = nss; |
| |
| /* set pointers */ |
| (*c)->state = gcm; |
| |
| /* setup cipher attributes */ |
| switch (key_len) { |
| case SRTP_AES_GCM_128_KEY_LEN_WSALT: |
| (*c)->type = &srtp_aes_gcm_128; |
| (*c)->algorithm = SRTP_AES_GCM_128; |
| gcm->key_size = SRTP_AES_128_KEY_LEN; |
| gcm->tag_size = tlen; |
| gcm->params.ulTagBits = 8 * tlen; |
| break; |
| case SRTP_AES_GCM_256_KEY_LEN_WSALT: |
| (*c)->type = &srtp_aes_gcm_256; |
| (*c)->algorithm = SRTP_AES_GCM_256; |
| gcm->key_size = SRTP_AES_256_KEY_LEN; |
| gcm->tag_size = tlen; |
| gcm->params.ulTagBits = 8 * tlen; |
| break; |
| default: |
| /* this should never hit, but to be sure... */ |
| return (srtp_err_status_bad_param); |
| } |
| |
| /* set key size and tag size*/ |
| (*c)->key_len = key_len; |
| |
| return (srtp_err_status_ok); |
| } |
| |
| /* |
| * This function deallocates a GCM session |
| */ |
| static srtp_err_status_t srtp_aes_gcm_nss_dealloc(srtp_cipher_t *c) |
| { |
| srtp_aes_gcm_ctx_t *ctx; |
| |
| ctx = (srtp_aes_gcm_ctx_t *)c->state; |
| if (ctx) { |
| /* release NSS resources */ |
| if (ctx->key) { |
| PK11_FreeSymKey(ctx->key); |
| } |
| |
| if (ctx->nss) { |
| NSS_ShutdownContext(ctx->nss); |
| ctx->nss = NULL; |
| } |
| |
| /* zeroize the key material */ |
| octet_string_set_to_zero(ctx, sizeof(srtp_aes_gcm_ctx_t)); |
| srtp_crypto_free(ctx); |
| } |
| |
| /* free memory */ |
| srtp_crypto_free(c); |
| |
| return (srtp_err_status_ok); |
| } |
| |
| /* |
| * aes_gcm_nss_context_init(...) initializes the aes_gcm_context |
| * using the value in key[]. |
| * |
| * the key is the secret key |
| */ |
| static srtp_err_status_t srtp_aes_gcm_nss_context_init(void *cv, |
| const uint8_t *key) |
| { |
| srtp_aes_gcm_ctx_t *c = (srtp_aes_gcm_ctx_t *)cv; |
| |
| c->dir = srtp_direction_any; |
| |
| debug_print(srtp_mod_aes_gcm, "key: %s", |
| srtp_octet_string_hex_string(key, c->key_size)); |
| |
| if (c->key) { |
| PK11_FreeSymKey(c->key); |
| c->key = NULL; |
| } |
| |
| PK11SlotInfo *slot = PK11_GetBestSlot(CKM_AES_GCM, NULL); |
| if (!slot) { |
| return (srtp_err_status_cipher_fail); |
| } |
| |
| SECItem key_item = { siBuffer, (unsigned char *)key, c->key_size }; |
| c->key = PK11_ImportSymKey(slot, CKM_AES_GCM, PK11_OriginUnwrap, |
| CKA_ENCRYPT, &key_item, NULL); |
| PK11_FreeSlot(slot); |
| |
| if (!c->key) { |
| return (srtp_err_status_cipher_fail); |
| } |
| |
| return (srtp_err_status_ok); |
| } |
| |
| /* |
| * aes_gcm_nss_set_iv(c, iv) sets the counter value to the exor of iv with |
| * the offset |
| */ |
| static srtp_err_status_t srtp_aes_gcm_nss_set_iv( |
| void *cv, |
| uint8_t *iv, |
| srtp_cipher_direction_t direction) |
| { |
| srtp_aes_gcm_ctx_t *c = (srtp_aes_gcm_ctx_t *)cv; |
| |
| if (direction != srtp_direction_encrypt && |
| direction != srtp_direction_decrypt) { |
| return (srtp_err_status_bad_param); |
| } |
| c->dir = direction; |
| |
| debug_print(srtp_mod_aes_gcm, "setting iv: %s", |
| srtp_octet_string_hex_string(iv, GCM_IV_LEN)); |
| |
| memcpy(c->iv, iv, GCM_IV_LEN); |
| |
| return (srtp_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 |
| */ |
| static srtp_err_status_t srtp_aes_gcm_nss_set_aad(void *cv, |
| const uint8_t *aad, |
| uint32_t aad_len) |
| { |
| srtp_aes_gcm_ctx_t *c = (srtp_aes_gcm_ctx_t *)cv; |
| |
| debug_print(srtp_mod_aes_gcm, "setting AAD: %s", |
| srtp_octet_string_hex_string(aad, aad_len)); |
| |
| if (aad_len + c->aad_size > MAX_AD_SIZE) { |
| return srtp_err_status_bad_param; |
| } |
| |
| memcpy(c->aad + c->aad_size, aad, aad_len); |
| c->aad_size += aad_len; |
| |
| return (srtp_err_status_ok); |
| } |
| |
| static srtp_err_status_t srtp_aes_gcm_nss_do_crypto(void *cv, |
| int encrypt, |
| unsigned char *buf, |
| unsigned int *enc_len) |
| { |
| srtp_aes_gcm_ctx_t *c = (srtp_aes_gcm_ctx_t *)cv; |
| |
| c->params.pIv = c->iv; |
| c->params.ulIvLen = GCM_IV_LEN; |
| c->params.pAAD = c->aad; |
| c->params.ulAADLen = c->aad_size; |
| |
| // Reset AAD |
| c->aad_size = 0; |
| |
| int rv; |
| SECItem param = { siBuffer, (unsigned char *)&c->params, |
| sizeof(CK_GCM_PARAMS) }; |
| if (encrypt) { |
| rv = PK11_Encrypt(c->key, CKM_AES_GCM, ¶m, buf, enc_len, |
| *enc_len + 16, buf, *enc_len); |
| } else { |
| rv = PK11_Decrypt(c->key, CKM_AES_GCM, ¶m, buf, enc_len, *enc_len, |
| buf, *enc_len); |
| } |
| |
| srtp_err_status_t status = (srtp_err_status_ok); |
| if (rv != SECSuccess) { |
| status = (srtp_err_status_cipher_fail); |
| } |
| |
| return status; |
| } |
| |
| /* |
| * This function encrypts a buffer using AES GCM mode |
| * |
| * XXX(rlb@ipv.sx): We're required to break off and cache the tag |
| * here, because the get_tag() method is separate and the tests expect |
| * encrypt() not to change the size of the plaintext. It might be |
| * good to update the calling API so that this is cleaner. |
| * |
| * Parameters: |
| * c Crypto context |
| * buf data to encrypt |
| * enc_len length of encrypt buffer |
| */ |
| static srtp_err_status_t srtp_aes_gcm_nss_encrypt(void *cv, |
| unsigned char *buf, |
| unsigned int *enc_len) |
| { |
| srtp_aes_gcm_ctx_t *c = (srtp_aes_gcm_ctx_t *)cv; |
| |
| // When we get a non-NULL buffer, we know that the caller is |
| // prepared to also take the tag. When we get a NULL buffer, |
| // even though there's no data, we need to give NSS a buffer |
| // where it can write the tag. We can't just use c->tag because |
| // memcpy has undefined behavior on overlapping ranges. |
| unsigned char tagbuf[16]; |
| unsigned char *non_null_buf = buf; |
| if (!non_null_buf && (*enc_len == 0)) { |
| non_null_buf = tagbuf; |
| } else if (!non_null_buf) { |
| return srtp_err_status_bad_param; |
| } |
| |
| srtp_err_status_t status = |
| srtp_aes_gcm_nss_do_crypto(cv, 1, non_null_buf, enc_len); |
| if (status != srtp_err_status_ok) { |
| return status; |
| } |
| |
| memcpy(c->tag, non_null_buf + (*enc_len - c->tag_size), c->tag_size); |
| *enc_len -= c->tag_size; |
| return srtp_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 |
| */ |
| static srtp_err_status_t srtp_aes_gcm_nss_get_tag(void *cv, |
| uint8_t *buf, |
| uint32_t *len) |
| { |
| srtp_aes_gcm_ctx_t *c = (srtp_aes_gcm_ctx_t *)cv; |
| *len = c->tag_size; |
| memcpy(buf, c->tag, c->tag_size); |
| return (srtp_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 |
| */ |
| static srtp_err_status_t srtp_aes_gcm_nss_decrypt(void *cv, |
| unsigned char *buf, |
| unsigned int *enc_len) |
| { |
| srtp_err_status_t status = srtp_aes_gcm_nss_do_crypto(cv, 0, buf, enc_len); |
| if (status != srtp_err_status_ok) { |
| int err = PR_GetError(); |
| if (err == SEC_ERROR_BAD_DATA) { |
| status = srtp_err_status_auth_fail; |
| } |
| } |
| |
| return status; |
| } |
| |
| /* |
| * Name of this crypto engine |
| */ |
| static const char srtp_aes_gcm_128_nss_description[] = "AES-128 GCM using NSS"; |
| static const char srtp_aes_gcm_256_nss_description[] = "AES-256 GCM using NSS"; |
| |
| /* |
| * KAT values for AES self-test. These |
| * values we're derived from independent test code |
| * using OpenSSL. |
| */ |
| /* clang-format off */ |
| static const uint8_t srtp_aes_gcm_test_case_0_key[SRTP_AES_GCM_128_KEY_LEN_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, |
| }; |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| static uint8_t srtp_aes_gcm_test_case_0_iv[12] = { |
| 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad, |
| 0xde, 0xca, 0xf8, 0x88 |
| }; |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| static const uint8_t srtp_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 |
| }; |
| |
| /* clang-format off */ |
| static const uint8_t srtp_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 |
| }; |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| static const uint8_t srtp_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, |
| }; |
| /* clang-format on */ |
| |
| static const srtp_cipher_test_case_t srtp_aes_gcm_test_case_0a = { |
| SRTP_AES_GCM_128_KEY_LEN_WSALT, /* octets in key */ |
| srtp_aes_gcm_test_case_0_key, /* key */ |
| srtp_aes_gcm_test_case_0_iv, /* packet index */ |
| 60, /* octets in plaintext */ |
| srtp_aes_gcm_test_case_0_plaintext, /* plaintext */ |
| 68, /* octets in ciphertext */ |
| srtp_aes_gcm_test_case_0_ciphertext, /* ciphertext + tag */ |
| 20, /* octets in AAD */ |
| srtp_aes_gcm_test_case_0_aad, /* AAD */ |
| GCM_AUTH_TAG_LEN_8, /* */ |
| NULL /* pointer to next testcase */ |
| }; |
| |
| static const srtp_cipher_test_case_t srtp_aes_gcm_test_case_0 = { |
| SRTP_AES_GCM_128_KEY_LEN_WSALT, /* octets in key */ |
| srtp_aes_gcm_test_case_0_key, /* key */ |
| srtp_aes_gcm_test_case_0_iv, /* packet index */ |
| 60, /* octets in plaintext */ |
| srtp_aes_gcm_test_case_0_plaintext, /* plaintext */ |
| 76, /* octets in ciphertext */ |
| srtp_aes_gcm_test_case_0_ciphertext, /* ciphertext + tag */ |
| 20, /* octets in AAD */ |
| srtp_aes_gcm_test_case_0_aad, /* AAD */ |
| GCM_AUTH_TAG_LEN, /* */ |
| &srtp_aes_gcm_test_case_0a /* pointer to next testcase */ |
| }; |
| |
| /* clang-format off */ |
| static const uint8_t srtp_aes_gcm_test_case_1_key[SRTP_AES_GCM_256_KEY_LEN_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, |
| }; |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| static uint8_t srtp_aes_gcm_test_case_1_iv[12] = { |
| 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad, |
| 0xde, 0xca, 0xf8, 0x88 |
| }; |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| static const uint8_t srtp_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 |
| }; |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| static const uint8_t srtp_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 |
| }; |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| static const uint8_t srtp_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, |
| }; |
| /* clang-format on */ |
| |
| static const srtp_cipher_test_case_t srtp_aes_gcm_test_case_1a = { |
| SRTP_AES_GCM_256_KEY_LEN_WSALT, /* octets in key */ |
| srtp_aes_gcm_test_case_1_key, /* key */ |
| srtp_aes_gcm_test_case_1_iv, /* packet index */ |
| 60, /* octets in plaintext */ |
| srtp_aes_gcm_test_case_1_plaintext, /* plaintext */ |
| 68, /* octets in ciphertext */ |
| srtp_aes_gcm_test_case_1_ciphertext, /* ciphertext + tag */ |
| 20, /* octets in AAD */ |
| srtp_aes_gcm_test_case_1_aad, /* AAD */ |
| GCM_AUTH_TAG_LEN_8, /* */ |
| NULL /* pointer to next testcase */ |
| }; |
| |
| static const srtp_cipher_test_case_t srtp_aes_gcm_test_case_1 = { |
| SRTP_AES_GCM_256_KEY_LEN_WSALT, /* octets in key */ |
| srtp_aes_gcm_test_case_1_key, /* key */ |
| srtp_aes_gcm_test_case_1_iv, /* packet index */ |
| 60, /* octets in plaintext */ |
| srtp_aes_gcm_test_case_1_plaintext, /* plaintext */ |
| 76, /* octets in ciphertext */ |
| srtp_aes_gcm_test_case_1_ciphertext, /* ciphertext + tag */ |
| 20, /* octets in AAD */ |
| srtp_aes_gcm_test_case_1_aad, /* AAD */ |
| GCM_AUTH_TAG_LEN, /* */ |
| &srtp_aes_gcm_test_case_1a /* pointer to next testcase */ |
| }; |
| |
| /* |
| * This is the vector function table for this crypto engine. |
| */ |
| /* clang-format off */ |
| const srtp_cipher_type_t srtp_aes_gcm_128 = { |
| srtp_aes_gcm_nss_alloc, |
| srtp_aes_gcm_nss_dealloc, |
| srtp_aes_gcm_nss_context_init, |
| srtp_aes_gcm_nss_set_aad, |
| srtp_aes_gcm_nss_encrypt, |
| srtp_aes_gcm_nss_decrypt, |
| srtp_aes_gcm_nss_set_iv, |
| srtp_aes_gcm_nss_get_tag, |
| srtp_aes_gcm_128_nss_description, |
| &srtp_aes_gcm_test_case_0, |
| SRTP_AES_GCM_128 |
| }; |
| /* clang-format on */ |
| |
| /* |
| * This is the vector function table for this crypto engine. |
| */ |
| /* clang-format off */ |
| const srtp_cipher_type_t srtp_aes_gcm_256 = { |
| srtp_aes_gcm_nss_alloc, |
| srtp_aes_gcm_nss_dealloc, |
| srtp_aes_gcm_nss_context_init, |
| srtp_aes_gcm_nss_set_aad, |
| srtp_aes_gcm_nss_encrypt, |
| srtp_aes_gcm_nss_decrypt, |
| srtp_aes_gcm_nss_set_iv, |
| srtp_aes_gcm_nss_get_tag, |
| srtp_aes_gcm_256_nss_description, |
| &srtp_aes_gcm_test_case_1, |
| SRTP_AES_GCM_256 |
| }; |
| /* clang-format on */ |
