05750f23ae
This was reverted a second time because it ended up always setting the final argument to CRYPTO_gcm128_init to zero, which disabled some acceleration of GCM on ≥Haswell. With this update, that argument will be set to 1 if |aes_hw_*| functions are being used. Probably this will need to be reverted too for some reason. I'm hoping to fill the entire git short description with “Revert”. Change-Id: Ib4a06f937d35d95affdc0b63f29f01c4a8c47d03 Reviewed-on: https://boringssl-review.googlesource.com/28484 Reviewed-by: Adam Langley <agl@google.com> Commit-Queue: Adam Langley <agl@google.com> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
/* Copyright (c) 2017, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#ifndef OPENSSL_HEADER_AES_INTERNAL_H
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#define OPENSSL_HEADER_AES_INTERNAL_H
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#include <stdlib.h>
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#include <openssl/cpu.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#if !defined(OPENSSL_NO_ASM)
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#if defined(OPENSSL_X86_64)
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#define HWAES
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#define HWAES_ECB
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static int hwaes_capable(void) {
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return (OPENSSL_ia32cap_P[1] & (1 << (57 - 32))) != 0;
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}
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#elif defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)
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#define HWAES
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static int hwaes_capable(void) {
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return CRYPTO_is_ARMv8_AES_capable();
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}
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#elif defined(OPENSSL_PPC64LE)
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#define HWAES
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static int hwaes_capable(void) {
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return CRYPTO_is_PPC64LE_vcrypto_capable();
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}
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#endif
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#endif // !NO_ASM
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#if defined(HWAES)
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int aes_hw_set_encrypt_key(const uint8_t *user_key, const int bits,
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AES_KEY *key);
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int aes_hw_set_decrypt_key(const uint8_t *user_key, const int bits,
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AES_KEY *key);
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void aes_hw_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
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void aes_hw_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
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void aes_hw_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length,
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const AES_KEY *key, uint8_t *ivec, const int enc);
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void aes_hw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, size_t len,
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const AES_KEY *key, const uint8_t ivec[16]);
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#else
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// If HWAES isn't defined then we provide dummy functions for each of the hwaes
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// functions.
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static int hwaes_capable(void) { return 0; }
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static int aes_hw_set_encrypt_key(const uint8_t *user_key, int bits,
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AES_KEY *key) {
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abort();
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}
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static int aes_hw_set_decrypt_key(const uint8_t *user_key, int bits,
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AES_KEY *key) {
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abort();
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}
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static void aes_hw_encrypt(const uint8_t *in, uint8_t *out,
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const AES_KEY *key) {
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abort();
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}
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static void aes_hw_decrypt(const uint8_t *in, uint8_t *out,
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const AES_KEY *key) {
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abort();
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}
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static void aes_hw_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length,
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const AES_KEY *key, uint8_t *ivec, int enc) {
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abort();
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}
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static void aes_hw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out,
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size_t len, const AES_KEY *key,
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const uint8_t ivec[16]) {
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abort();
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}
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#endif // !HWAES
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#if defined(HWAES_ECB)
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void aes_hw_ecb_encrypt(const uint8_t *in, uint8_t *out, size_t length,
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const AES_KEY *key, const int enc);
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#endif
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#if defined(__cplusplus)
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} // extern C
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#endif
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#endif // OPENSSL_HEADER_AES_INTERNAL_H
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