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Hakase
2020-01-17 19:45:12 +09:00
parent 016df9f433
commit 0f7abb4eb6
1100 changed files with 47785 additions and 16292 deletions
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providers/implementations/ciphers/cipher_aes_gcm_hw.c
+77 -5
View File
@@ -9,10 +9,15 @@
/* Dispatch functions for AES GCM mode */
#include "prov/ciphercommon.h"
#include "prov/cipher_gcm.h"
/*
* This file uses the low level AES functions (which are deprecated for
* non-internal use) in order to implement provider AES ciphers.
*/
#include "internal/deprecated.h"
static int generic_aes_gcm_initkey(PROV_GCM_CTX *ctx, const unsigned char *key,
#include "cipher_aes_gcm.h"
static int aes_gcm_initkey(PROV_GCM_CTX *ctx, const unsigned char *key,
size_t keylen)
{
PROV_AES_GCM_CTX *actx = (PROV_AES_GCM_CTX *)ctx;
@@ -54,11 +59,76 @@ static int generic_aes_gcm_initkey(PROV_GCM_CTX *ctx, const unsigned char *key,
return 1;
}
static int generic_aes_gcm_cipher_update(PROV_GCM_CTX *ctx, const unsigned char *in,
size_t len, unsigned char *out)
{
if (ctx->enc) {
if (ctx->ctr != NULL) {
#if defined(AES_GCM_ASM)
size_t bulk = 0;
if (len >= AES_GCM_ENC_BYTES && AES_GCM_ASM(ctx)) {
size_t res = (16 - ctx->gcm.mres) % 16;
if (CRYPTO_gcm128_encrypt(&ctx->gcm, in, out, res))
return 0;
bulk = AES_gcm_encrypt(in + res, out + res, len - res,
ctx->gcm.key,
ctx->gcm.Yi.c, ctx->gcm.Xi.u);
ctx->gcm.len.u[1] += bulk;
bulk += res;
}
if (CRYPTO_gcm128_encrypt_ctr32(&ctx->gcm, in + bulk, out + bulk,
len - bulk, ctx->ctr))
return 0;
#else
if (CRYPTO_gcm128_encrypt_ctr32(&ctx->gcm, in, out, len, ctx->ctr))
return 0;
#endif /* AES_GCM_ASM */
} else {
if (CRYPTO_gcm128_encrypt(&ctx->gcm, in, out, len))
return 0;
}
} else {
if (ctx->ctr != NULL) {
#if defined(AES_GCM_ASM)
size_t bulk = 0;
if (len >= AES_GCM_DEC_BYTES && AES_GCM_ASM(ctx)) {
size_t res = (16 - ctx->gcm.mres) % 16;
if (CRYPTO_gcm128_decrypt(&ctx->gcm, in, out, res))
return -1;
bulk = AES_gcm_decrypt(in + res, out + res, len - res,
ctx->gcm.key,
ctx->gcm.Yi.c, ctx->gcm.Xi.u);
ctx->gcm.len.u[1] += bulk;
bulk += res;
}
if (CRYPTO_gcm128_decrypt_ctr32(&ctx->gcm, in + bulk, out + bulk,
len - bulk, ctx->ctr))
return 0;
#else
if (CRYPTO_gcm128_decrypt_ctr32(&ctx->gcm, in, out, len, ctx->ctr))
return 0;
#endif /* AES_GCM_ASM */
} else {
if (CRYPTO_gcm128_decrypt(&ctx->gcm, in, out, len))
return 0;
}
}
return 1;
}
static const PROV_GCM_HW aes_gcm = {
generic_aes_gcm_initkey,
aes_gcm_initkey,
gcm_setiv,
gcm_aad_update,
gcm_cipher_update,
generic_aes_gcm_cipher_update,
gcm_cipher_final,
gcm_one_shot
};
@@ -69,6 +139,8 @@ static const PROV_GCM_HW aes_gcm = {
# include "cipher_aes_gcm_hw_aesni.inc"
#elif defined(SPARC_AES_CAPABLE)
# include "cipher_aes_gcm_hw_t4.inc"
#elif defined(AES_PMULL_CAPABLE) && defined(AES_GCM_ASM)
# include "cipher_aes_gcm_hw_armv8.inc"
#else
const PROV_GCM_HW *PROV_AES_HW_gcm(size_t keybits)
{