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48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
/*
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* Copyright 2001-2022 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*-
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* AES-NI support for AES GCM.
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* This file is included by cipher_aes_gcm_hw.c
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*/
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static int aesni_gcm_initkey(PROV_GCM_CTX *ctx, const unsigned char *key,
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size_t keylen)
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{
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PROV_AES_GCM_CTX *actx = (PROV_AES_GCM_CTX *)ctx;
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AES_KEY *ks = &actx->ks.ks;
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GCM_HW_SET_KEY_CTR_FN(ks, aesni_set_encrypt_key, aesni_encrypt,
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aesni_ctr32_encrypt_blocks);
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return 1;
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}
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static const PROV_GCM_HW aesni_gcm = {
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aesni_gcm_initkey,
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ossl_gcm_setiv,
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ossl_gcm_aad_update,
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generic_aes_gcm_cipher_update,
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ossl_gcm_cipher_final,
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ossl_gcm_one_shot
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};
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#include "cipher_aes_gcm_hw_vaes_avx512.inc"
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const PROV_GCM_HW *ossl_prov_aes_hw_gcm(size_t keybits)
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{
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#ifdef VAES_GCM_ENABLED
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if (ossl_vaes_vpclmulqdq_capable())
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return &vaes_gcm;
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else
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#endif
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if (AESNI_CAPABLE)
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return &aesni_gcm;
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else
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return &aes_gcm;
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}
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