diff options
Diffstat (limited to 'third_party')
| -rw-r--r-- | third_party/boringssl/include/aes_gcm_helpers.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/third_party/boringssl/include/aes_gcm_helpers.h b/third_party/boringssl/include/aes_gcm_helpers.h new file mode 100644 index 0000000000..7c902169b7 --- /dev/null +++ b/third_party/boringssl/include/aes_gcm_helpers.h @@ -0,0 +1,35 @@ +/* Copyright 2023 The ChromiumOS Authors + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/* Helpers for the boringssl AEC GCM interface. */ + +#ifndef __CROS_EC_AES_GCM_HELPERS_H +#define __CROS_EC_AES_GCM_HELPERS_H + +#include "openssl/aes.h" +#include "string.h" + +/* These must be included after the "openssl/aes.h" */ +#include "crypto/fipsmodule/aes/internal.h" +#include "crypto/fipsmodule/modes/internal.h" + +/* CRYPTO_gcm128_init initialises |ctx| to use |block| (typically AES) with + * the given key. |block_is_hwaes| is one if |block| is |aes_hw_encrypt|. + * + * This API was removed in upstream: + * https://boringssl-review.googlesource.com/c/boringssl/+/32004 + * + * Note: The content of GCM128_CONTEXT must be initialized by this function. + * Passing the context that remain uninitialized parts into the other + * CRYPTO_gcm128_ functions will result undefined behavior. + */ +static inline void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, const AES_KEY *key, + block128_f block, int block_is_hwaes) +{ + memset(ctx, 0, sizeof(*ctx)); + CRYPTO_gcm128_init_key(&ctx->gcm_key, key, block, block_is_hwaes); +} + +#endif /* __CROS_EC_AES_GCM_HELPERS_H */ |