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authorAndy Polyakov <appro@openssl.org>2012-04-19 20:43:02 +0000
committerAndy Polyakov <appro@openssl.org>2012-04-19 20:43:02 +0000
commit7fc6d35be0b668269c7d36fbf472dbf2e0e2beeb (patch)
tree89af37a8968ea07a197d26d23e8591ac5f06437f /crypto/evp
parente7d2a37158eb2d4b66af983741eb66926e9941ce (diff)
e_rc4_hmac_md5.c: last commit was inappropriate for non-x86[_64] platforms
[from HEAD]. PR: 2792
Diffstat (limited to 'crypto/evp')
-rw-r--r--crypto/evp/e_rc4_hmac_md5.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/crypto/evp/e_rc4_hmac_md5.c b/crypto/evp/e_rc4_hmac_md5.c
index 3f32b2591c..649fcadd98 100644
--- a/crypto/evp/e_rc4_hmac_md5.c
+++ b/crypto/evp/e_rc4_hmac_md5.c
@@ -121,6 +121,7 @@ static int rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
md5_off = MD5_CBLOCK-key->md.num,
blocks;
unsigned int l;
+ extern unsigned int OPENSSL_ia32cap_P[];
#endif
size_t plen = key->payload_length;
@@ -132,7 +133,8 @@ static int rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
/* cipher has to "fall behind" */
if (rc4_off>md5_off) md5_off+=MD5_CBLOCK;
- if (plen>md5_off && (blocks=(plen-md5_off)/MD5_CBLOCK)) {
+ if (plen>md5_off && (blocks=(plen-md5_off)/MD5_CBLOCK) &&
+ (OPENSSL_ia32cap_P[0]&(1<<20))==0) {
MD5_Update(&key->md,in,md5_off);
RC4(&key->ks,rc4_off,in,out);
@@ -172,7 +174,8 @@ static int rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
if (md5_off>rc4_off) rc4_off += 2*MD5_CBLOCK;
else rc4_off += MD5_CBLOCK;
- if (len>rc4_off && (blocks=(len-rc4_off)/MD5_CBLOCK)) {
+ if (len>rc4_off && (blocks=(len-rc4_off)/MD5_CBLOCK) &&
+ (OPENSSL_ia32cap_P[0]&(1<<20))==0) {
RC4(&key->ks,rc4_off,in,out);
MD5_Update(&key->md,out,md5_off);
@@ -289,8 +292,6 @@ static EVP_CIPHER r4_hmac_md5_cipher=
const EVP_CIPHER *EVP_rc4_hmac_md5(void)
{
- extern unsigned int OPENSSL_ia32cap_P[];
- /* RC4_CHAR flag ------------vvvvv */
- return(OPENSSL_ia32cap_P[0]&(1<<20) ? NULL : &r4_hmac_md5_cipher);
+ return(&r4_hmac_md5_cipher);
}
#endif