update to official patch from openssl.org; ok deraadt@, millert@

1 files changed, 21 insertions, 21 deletions

diff --git a/src/lib/libcrypto/rsa/rsa_eay.c b/src/lib/libcrypto/rsa/rsa_eay.c
index 3fe1cd6540..a3f549d8e6 100644
--- a/src/lib/libcrypto/rsa/rsa_eay.c
+++ b/src/lib/libcrypto/rsa/rsa_eay.c
@@ -97,21 +97,6 @@ const RSA_METHOD *RSA_PKCS1_SSLeay(void)
         return(&rsa_pkcs1_eay_meth);
         }
 
-static void rsa_eay_blinding(RSA *rsa, BN_CTX *ctx)
-        {
-        CRYPTO_w_lock(CRYPTO_LOCK_RSA);
-        /* Check again inside the lock - the macro's check is racey */
-        if(rsa->blinding == NULL)
-                RSA_blinding_on(rsa, ctx);
-        CRYPTO_w_unlock(CRYPTO_LOCK_RSA);
-        }
-#define BLINDING_HELPER(rsa, ctx) \
-        do { \
-                if(((rsa)->flags & RSA_FLAG_BLINDING) && \
-                                ((rsa)->blinding == NULL)) \
-                        rsa_eay_blinding(rsa, ctx); \
-        } while(0)
-
 static int RSA_eay_public_encrypt(int flen, const unsigned char *from,
              unsigned char *to, RSA *rsa, int padding)
         {
@@ -208,6 +193,25 @@ err:
         return(r);
         }
 
+static int rsa_eay_blinding(RSA *rsa, BN_CTX *ctx)
+        {
+        int ret = 1;
+        CRYPTO_w_lock(CRYPTO_LOCK_RSA);
+        /* Check again inside the lock - the macro's check is racey */
+        if(rsa->blinding == NULL)
+                ret = RSA_blinding_on(rsa, ctx);
+        CRYPTO_w_unlock(CRYPTO_LOCK_RSA);
+        return ret;
+        }
+
+#define BLINDING_HELPER(rsa, ctx, err_instr) \
+        do { \
+                if(((rsa)->flags & RSA_FLAG_BLINDING) && \
+                                ((rsa)->blinding == NULL) && \
+                                !rsa_eay_blinding(rsa, ctx)) \
+                        err_instr \
+        } while(0)
+
 /* signing */
 static int RSA_eay_private_encrypt(int flen, const unsigned char *from,
              unsigned char *to, RSA *rsa, int padding)
@@ -252,7 +256,7 @@ static int RSA_eay_private_encrypt(int flen, const unsigned char *from,
                 goto err;
                 }
 
-        BLINDING_HELPER(rsa, ctx);
+        BLINDING_HELPER(rsa, ctx, goto err;);
 
         if (rsa->flags & RSA_FLAG_BLINDING)
                 if (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err;
@@ -331,7 +335,7 @@ static int RSA_eay_private_decrypt(int flen, const unsigned char *from,
                 goto err;
                 }
 
-        BLINDING_HELPER(rsa, ctx);
+        BLINDING_HELPER(rsa, ctx, goto err;);
 
         if (rsa->flags & RSA_FLAG_BLINDING)
                 if (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err;
@@ -607,10 +611,6 @@ err:
 static int RSA_eay_init(RSA *rsa)
         {
         rsa->flags|=RSA_FLAG_CACHE_PUBLIC|RSA_FLAG_CACHE_PRIVATE;
-
-        /* Enforce blinding. */
-        rsa->flags|=RSA_FLAG_BLINDING;
-
         return(1);
         }