Revert "RT3425: constant-time evp_enc"

[oweals/openssl.git] / crypto / evp / openbsd_hw.c

diff --git a/crypto/evp/openbsd_hw.c b/crypto/evp/openbsd_hw.c
index 0554019489e7c40c24e738a534715d3dcafb1a9f..e5252e2e937a6accbc602d601872ce2df0ae0fab 100644 (file)
--- a/crypto/evp/openbsd_hw.c
+++ b/crypto/evp/openbsd_hw.c
@@ -326,7 +326,7 @@ static int dev_crypto_md5_init(EVP_MD_CTX *ctx)
 static int do_digest(int ses,unsigned char *md,const void *data,int len)
     {
     struct crypt_op cryp;
-    static unsigned char md5zero[16]=
+    static const unsigned char md5zero[16]=
        {
        0xd4,0x1d,0x8c,0xd9,0x8f,0x00,0xb2,0x04,
        0xe9,0x80,0x09,0x98,0xec,0xf8,0x42,0x7e
@@ -382,11 +382,15 @@ static int dev_crypto_md5_update(EVP_MD_CTX *ctx,const void *data,
                                 unsigned long len)
     {
     MD_DATA *md_data=ctx->md_data;
+    char *tmp_md_data;
 
     if(ctx->flags&EVP_MD_CTX_FLAG_ONESHOT)
        return do_digest(md_data->sess.ses,md_data->md,data,len);
 
-    md_data->data=OPENSSL_realloc(md_data->data,md_data->len+len);
+    tmp_md_data=OPENSSL_realloc(md_data->data,md_data->len+len);
+    if (tmp_md_data == NULL)
+       return 0;
+    md_data->data=tmp_md_data;
     memcpy(md_data->data+md_data->len,data,len);
     md_data->len+=len;
 
@@ -423,6 +427,8 @@ static int dev_crypto_md5_copy(EVP_MD_CTX *to,const EVP_MD_CTX *from)
     assert(from->digest->flags&EVP_MD_FLAG_ONESHOT);
 
     to_md->data=OPENSSL_malloc(from_md->len);
+    if (to_md->data == NULL)
+       return 0;
     memcpy(to_md->data,from_md->data,from_md->len);
 
     return 1;