/* ==================================================================== * Copyright (c) 2001-2011 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. 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. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * [email protected]. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED 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 OpenSSL PROJECT OR * ITS 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. * ==================================================================== */ #include <assert.h> #include <limits.h> #include <string.h> #include <openssl/aead.h> #include <openssl/aes.h> #include <openssl/cipher.h> #include <openssl/err.h> #include <openssl/mem.h> #include <openssl/nid.h> #include "internal.h" #include "../../internal.h" #include "../aes/internal.h" #include "../bcm_interface.h" #include "../modes/internal.h" #include "../service_indicator/internal.h" #include "../delocate.h" OPENSSL_MSVC_PRAGMA(…) OPENSSL_MSVC_PRAGMA(…) // Unreachable code. #define AES_GCM_NONCE_LENGTH … #if defined(BSAES) static void vpaes_ctr32_encrypt_blocks_with_bsaes(const uint8_t *in, uint8_t *out, size_t blocks, const AES_KEY *key, const uint8_t ivec[16]) { // |bsaes_ctr32_encrypt_blocks| is faster than |vpaes_ctr32_encrypt_blocks|, // but it takes at least one full 8-block batch to amortize the conversion. if (blocks < 8) { vpaes_ctr32_encrypt_blocks(in, out, blocks, key, ivec); return; } size_t bsaes_blocks = blocks; if (bsaes_blocks % 8 < 6) { // |bsaes_ctr32_encrypt_blocks| internally works in 8-block batches. If the // final batch is too small (under six blocks), it is faster to loop over // |vpaes_encrypt|. Round |bsaes_blocks| down to a multiple of 8. bsaes_blocks -= bsaes_blocks % 8; } AES_KEY bsaes; vpaes_encrypt_key_to_bsaes(&bsaes, key); bsaes_ctr32_encrypt_blocks(in, out, bsaes_blocks, &bsaes, ivec); OPENSSL_cleanse(&bsaes, sizeof(bsaes)); in += 16 * bsaes_blocks; out += 16 * bsaes_blocks; blocks -= bsaes_blocks; uint8_t new_ivec[16]; memcpy(new_ivec, ivec, 12); uint32_t ctr = CRYPTO_load_u32_be(ivec + 12) + bsaes_blocks; CRYPTO_store_u32_be(new_ivec + 12, ctr); // Finish any remaining blocks with |vpaes_ctr32_encrypt_blocks|. vpaes_ctr32_encrypt_blocks(in, out, blocks, key, new_ivec); } #endif // BSAES EVP_AES_KEY; EVP_AES_GCM_CTX; static int aes_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, const uint8_t *iv, int enc) { … } static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t len) { … } static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t len) { … } static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t len) { … } static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t len) { … } ctr128_f aes_ctr_set_key(AES_KEY *aes_key, GCM128_KEY *gcm_key, block128_f *out_block, const uint8_t *key, size_t key_bytes) { … } #if defined(OPENSSL_32_BIT) #define EVP_AES_GCM_CTX_PADDING … #else #define EVP_AES_GCM_CTX_PADDING … #endif static EVP_AES_GCM_CTX *aes_gcm_from_cipher_ctx(EVP_CIPHER_CTX *ctx) { … } static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, const uint8_t *iv, int enc) { … } static void aes_gcm_cleanup(EVP_CIPHER_CTX *c) { … } static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) { … } static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t len) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_128_cbc) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_128_ctr) { … } DEFINE_LOCAL_DATA(EVP_CIPHER, aes_128_ecb_generic) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_128_ofb) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_128_gcm) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_192_cbc) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_192_ctr) { … } DEFINE_LOCAL_DATA(EVP_CIPHER, aes_192_ecb_generic) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_192_ofb) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_192_gcm) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_256_cbc) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_256_ctr) { … } DEFINE_LOCAL_DATA(EVP_CIPHER, aes_256_ecb_generic) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_256_ofb) { … } DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_aes_256_gcm) { … } #if defined(HWAES_ECB) static int aes_hw_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t len) { … } DEFINE_LOCAL_DATA(EVP_CIPHER, aes_hw_128_ecb) { … } DEFINE_LOCAL_DATA(EVP_CIPHER, aes_hw_192_ecb) { … } DEFINE_LOCAL_DATA(EVP_CIPHER, aes_hw_256_ecb) { … } #define EVP_ECB_CIPHER_FUNCTION(keybits) … #else #define EVP_ECB_CIPHER_FUNCTION … #endif // HWAES_ECB EVP_ECB_CIPHER_FUNCTION(…) EVP_ECB_CIPHER_FUNCTION(…) EVP_ECB_CIPHER_FUNCTION(…) #define EVP_AEAD_AES_GCM_TAG_LEN … struct aead_aes_gcm_ctx { … }; static int aead_aes_gcm_init_impl(struct aead_aes_gcm_ctx *gcm_ctx, size_t *out_tag_len, const uint8_t *key, size_t key_len, size_t tag_len) { … } static_assert; static_assert; static int aead_aes_gcm_init(EVP_AEAD_CTX *ctx, const uint8_t *key, size_t key_len, size_t requested_tag_len) { … } static void aead_aes_gcm_cleanup(EVP_AEAD_CTX *ctx) { … } static int aead_aes_gcm_seal_scatter_impl( const struct aead_aes_gcm_ctx *gcm_ctx, uint8_t *out, uint8_t *out_tag, size_t *out_tag_len, size_t max_out_tag_len, const uint8_t *nonce, size_t nonce_len, const uint8_t *in, size_t in_len, const uint8_t *extra_in, size_t extra_in_len, const uint8_t *ad, size_t ad_len, size_t tag_len) { … } static int aead_aes_gcm_seal_scatter(const EVP_AEAD_CTX *ctx, uint8_t *out, uint8_t *out_tag, size_t *out_tag_len, size_t max_out_tag_len, const uint8_t *nonce, size_t nonce_len, const uint8_t *in, size_t in_len, const uint8_t *extra_in, size_t extra_in_len, const uint8_t *ad, size_t ad_len) { … } static int aead_aes_gcm_open_gather_impl(const struct aead_aes_gcm_ctx *gcm_ctx, uint8_t *out, const uint8_t *nonce, size_t nonce_len, const uint8_t *in, size_t in_len, const uint8_t *in_tag, size_t in_tag_len, const uint8_t *ad, size_t ad_len, size_t tag_len) { … } static int aead_aes_gcm_open_gather(const EVP_AEAD_CTX *ctx, uint8_t *out, const uint8_t *nonce, size_t nonce_len, const uint8_t *in, size_t in_len, const uint8_t *in_tag, size_t in_tag_len, const uint8_t *ad, size_t ad_len) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_128_gcm) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_192_gcm) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_256_gcm) { … } static int aead_aes_gcm_init_randnonce(EVP_AEAD_CTX *ctx, const uint8_t *key, size_t key_len, size_t requested_tag_len) { … } static int aead_aes_gcm_seal_scatter_randnonce( const EVP_AEAD_CTX *ctx, uint8_t *out, uint8_t *out_tag, size_t *out_tag_len, size_t max_out_tag_len, const uint8_t *external_nonce, size_t external_nonce_len, const uint8_t *in, size_t in_len, const uint8_t *extra_in, size_t extra_in_len, const uint8_t *ad, size_t ad_len) { … } static int aead_aes_gcm_open_gather_randnonce( const EVP_AEAD_CTX *ctx, uint8_t *out, const uint8_t *external_nonce, size_t external_nonce_len, const uint8_t *in, size_t in_len, const uint8_t *in_tag, size_t in_tag_len, const uint8_t *ad, size_t ad_len) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_128_gcm_randnonce) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_256_gcm_randnonce) { … } struct aead_aes_gcm_tls12_ctx { … }; static_assert; static_assert; static int aead_aes_gcm_tls12_init(EVP_AEAD_CTX *ctx, const uint8_t *key, size_t key_len, size_t requested_tag_len) { … } static int aead_aes_gcm_tls12_seal_scatter( const EVP_AEAD_CTX *ctx, uint8_t *out, uint8_t *out_tag, size_t *out_tag_len, size_t max_out_tag_len, const uint8_t *nonce, size_t nonce_len, const uint8_t *in, size_t in_len, const uint8_t *extra_in, size_t extra_in_len, const uint8_t *ad, size_t ad_len) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_128_gcm_tls12) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_256_gcm_tls12) { … } struct aead_aes_gcm_tls13_ctx { … }; static_assert; static_assert; static int aead_aes_gcm_tls13_init(EVP_AEAD_CTX *ctx, const uint8_t *key, size_t key_len, size_t requested_tag_len) { … } static int aead_aes_gcm_tls13_seal_scatter( const EVP_AEAD_CTX *ctx, uint8_t *out, uint8_t *out_tag, size_t *out_tag_len, size_t max_out_tag_len, const uint8_t *nonce, size_t nonce_len, const uint8_t *in, size_t in_len, const uint8_t *extra_in, size_t extra_in_len, const uint8_t *ad, size_t ad_len) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_128_gcm_tls13) { … } DEFINE_METHOD_FUNCTION(EVP_AEAD, EVP_aead_aes_256_gcm_tls13) { … } int EVP_has_aes_hardware(void) { … } OPENSSL_MSVC_PRAGMA(…)
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