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-rw-r--r--src/crypto/modes/gcm.c49
1 files changed, 23 insertions, 26 deletions
diff --git a/src/crypto/modes/gcm.c b/src/crypto/modes/gcm.c
index 8aac741..593dce8 100644
--- a/src/crypto/modes/gcm.c
+++ b/src/crypto/modes/gcm.c
@@ -46,7 +46,7 @@
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ==================================================================== */
-#include <openssl/base.h>
+#include <openssl/modes.h>
#include <assert.h>
#include <string.h>
@@ -86,9 +86,6 @@
} \
} while (0)
-// kSizeTWithoutLower4Bits is a mask that can be used to zero the lower four
-// bits of a |size_t|.
-static const size_t kSizeTWithoutLower4Bits = (size_t) -16;
static void gcm_init_4bit(u128 Htable[16], uint64_t H[2]) {
u128 V;
@@ -358,7 +355,7 @@ void gcm_ghash_4bit_x86(uint64_t Xi[2], const u128 Htable[16], const uint8_t *in
#define GCM_FUNCREF_4BIT
static int pmull_capable(void) {
- return CRYPTO_is_ARMv8_PMULL_capable();
+ return (OPENSSL_armcap_P & ARMV8_PMULL) != 0;
}
void gcm_init_v8(u128 Htable[16], const uint64_t Xi[2]);
@@ -406,7 +403,7 @@ void gcm_ghash_neon(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp,
#endif
#endif
-GCM128_CONTEXT *CRYPTO_gcm128_new(const void *key, block128_f block) {
+GCM128_CONTEXT *CRYPTO_gcm128_new(void *key, block128_f block) {
GCM128_CONTEXT *ret;
ret = (GCM128_CONTEXT *)OPENSSL_malloc(sizeof(GCM128_CONTEXT));
@@ -417,8 +414,7 @@ GCM128_CONTEXT *CRYPTO_gcm128_new(const void *key, block128_f block) {
return ret;
}
-void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, const void *key,
- block128_f block) {
+void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, void *key, block128_f block) {
const union {
long one;
char little;
@@ -426,6 +422,7 @@ void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, const void *key,
memset(ctx, 0, sizeof(*ctx));
ctx->block = block;
+ ctx->key = key;
(*block)(ctx->H.c, ctx->H.c, key);
@@ -491,8 +488,7 @@ void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, const void *key,
#endif
}
-void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const void *key,
- const uint8_t *iv, size_t len) {
+void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const uint8_t *iv, size_t len) {
const union {
long one;
char little;
@@ -560,7 +556,7 @@ void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const void *key,
}
}
- (*ctx->block)(ctx->Yi.c, ctx->EK0.c, key);
+ (*ctx->block)(ctx->Yi.c, ctx->EK0.c, ctx->key);
++ctr;
if (is_endian.little) {
PUTU32(ctx->Yi.c + 12, ctr);
@@ -633,9 +629,8 @@ int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const uint8_t *aad, size_t len) {
return 1;
}
-int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const void *key,
- const unsigned char *in, unsigned char *out,
- size_t len) {
+int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const unsigned char *in,
+ unsigned char *out, size_t len) {
const union {
long one;
char little;
@@ -644,6 +639,7 @@ int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const void *key,
size_t i;
uint64_t mlen = ctx->len.u[1];
block128_f block = ctx->block;
+ void *key = ctx->key;
#ifdef GCM_FUNCREF_4BIT
void (*gcm_gmult_p)(uint64_t Xi[2], const u128 Htable[16]) = ctx->gmult;
#ifdef GHASH
@@ -793,9 +789,8 @@ int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const void *key,
return 1;
}
-int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const void *key,
- const unsigned char *in, unsigned char *out,
- size_t len) {
+int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const unsigned char *in,
+ unsigned char *out, size_t len) {
const union {
long one;
char little;
@@ -804,6 +799,7 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const void *key,
size_t i;
uint64_t mlen = ctx->len.u[1];
block128_f block = ctx->block;
+ void *key = ctx->key;
#ifdef GCM_FUNCREF_4BIT
void (*gcm_gmult_p)(uint64_t Xi[2], const u128 Htable[16]) = ctx->gmult;
#ifdef GHASH
@@ -960,15 +956,16 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const void *key,
return 1;
}
-int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, const void *key,
- const uint8_t *in, uint8_t *out, size_t len,
- ctr128_f stream) {
+int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, const uint8_t *in,
+ uint8_t *out, size_t len, ctr128_f stream) {
const union {
long one;
char little;
} is_endian = {1};
unsigned int n, ctr;
+ size_t i;
uint64_t mlen = ctx->len.u[1];
+ void *key = ctx->key;
#ifdef GCM_FUNCREF_4BIT
void (*gcm_gmult_p)(uint64_t Xi[2], const u128 Htable[16]) = ctx->gmult;
#ifdef GHASH
@@ -1025,8 +1022,7 @@ int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, const void *key,
len -= GHASH_CHUNK;
}
#endif
- size_t i = len & kSizeTWithoutLower4Bits;
- if (i != 0) {
+ if ((i = (len & (size_t) - 16))) {
size_t j = i / 16;
(*stream)(in, out, j, key, ctx->Yi.c);
@@ -1069,15 +1065,17 @@ int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, const void *key,
return 1;
}
-int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, const void *key,
- const uint8_t *in, uint8_t *out, size_t len,
+int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, const uint8_t *in,
+ uint8_t *out, size_t len,
ctr128_f stream) {
const union {
long one;
char little;
} is_endian = {1};
unsigned int n, ctr;
+ size_t i;
uint64_t mlen = ctx->len.u[1];
+ void *key = ctx->key;
#ifdef GCM_FUNCREF_4BIT
void (*gcm_gmult_p)(uint64_t Xi[2], const u128 Htable[16]) = ctx->gmult;
#ifdef GHASH
@@ -1136,8 +1134,7 @@ int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, const void *key,
len -= GHASH_CHUNK;
}
#endif
- size_t i = len & kSizeTWithoutLower4Bits;
- if (i != 0) {
+ if ((i = (len & (size_t) - 16))) {
size_t j = i / 16;
#if defined(GHASH)
generated by cgit v1.1 at 2024-05-20 06:36:00 +0000