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Hakase
2019-07-13 19:13:22 +09:00
parent 9a23f88dc2
commit 2e57f602ae
542 changed files with 17287 additions and 6184 deletions
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crypto/evp/e_aes.c
+24 -9
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@@ -7,18 +7,19 @@
* https://www.openssl.org/source/license.html
*/
#include <string.h>
#include <assert.h>
#include <openssl/opensslconf.h>
#include <openssl/crypto.h>
#include <openssl/evp.h>
#include <openssl/err.h>
#include <string.h>
#include <assert.h>
#include <openssl/aes.h>
#include "internal/evp_int.h"
#include "internal/cryptlib.h"
#include "modes_lcl.h"
#include <openssl/rand.h>
#include <openssl/cmac.h>
#include "internal/evp_int.h"
#include "internal/cryptlib.h"
#include "internal/modes_int.h"
#include "modes_lcl.h"
#include "evp_locl.h"
typedef struct {
@@ -63,6 +64,12 @@ typedef struct {
const unsigned char iv[16]);
} EVP_AES_XTS_CTX;
#ifdef FIPS_MODE
static const int allow_insecure_decrypt = 0;
#else
static const int allow_insecure_decrypt = 1;
#endif
typedef struct {
union {
OSSL_UNION_ALIGN;
@@ -387,6 +394,7 @@ static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
if (!iv && !key)
return 1;
@@ -401,7 +409,8 @@ static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
* This addresses Rogaway's vulnerability.
* See comment in aes_xts_init_key() below.
*/
if (memcmp(key, key + bytes, bytes) == 0) {
if ((!allow_insecure_decrypt || enc)
&& CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
EVPerr(EVP_F_AESNI_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
return 0;
}
@@ -804,6 +813,7 @@ static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
if (!iv && !key)
return 1;
@@ -818,7 +828,8 @@ static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
* This addresses Rogaway's vulnerability.
* See comment in aes_xts_init_key() below.
*/
if (memcmp(key, key + bytes, bytes) == 0) {
if ((!allow_insecure_decrypt || enc)
&& CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
EVPerr(EVP_F_AES_T4_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
return 0;
}
@@ -3408,10 +3419,12 @@ BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
{
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX, c);
if (type == EVP_CTRL_COPY) {
EVP_CIPHER_CTX *out = ptr;
EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
if (xctx->xts.key1) {
if (xctx->xts.key1 != &xctx->ks1)
return 0;
@@ -3435,6 +3448,7 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
if (!iv && !key)
return 1;
@@ -3460,7 +3474,8 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
* BEFORE using the keys in the XTS-AES algorithm to process
* data with them."
*/
if (memcmp(key, key + bytes, bytes) == 0) {
if ((!allow_insecure_decrypt || enc)
&& CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
EVPerr(EVP_F_AES_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
return 0;
}