From: Dr. Stephen Henson <steve@openssl.org>
Date: Wed, 28 Jul 2010 16:53:28 +0000 (+0000)
Subject: Fix ctr mode properly this time....
X-Git-Tag: OpenSSL-fips-2_0-rc1~1014
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2948fbab3acf853e0f61c559009dce7e0f876b62;p=openssl

Fix ctr mode properly this time....
---

diff --git a/crypto/evp/evp_enc.c b/crypto/evp/evp_enc.c
index a35621a2ec..99e6b200c2 100644
--- a/crypto/evp/evp_enc.c
+++ b/crypto/evp/evp_enc.c
@@ -206,14 +206,17 @@ skip_to_init:
 			ctx->num = 0;
 
 			case EVP_CIPH_CBC_MODE:
-			case EVP_CIPH_CTR_MODE:
 
 			OPENSSL_assert(EVP_CIPHER_CTX_iv_length(ctx) <=
 					(int)sizeof(ctx->iv));
 			if(iv) memcpy(ctx->oiv, iv, EVP_CIPHER_CTX_iv_length(ctx));
+			memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx));
+			break;
+
+			case EVP_CIPH_CTR_MODE:
 			/* Don't reuse IV for CTR mode */
-			if (EVP_CIPHER_CTX_mode(ctx) != EVP_CIPH_CTR_MODE)
-				memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx));
+			if(iv)
+				memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
 			break;
 
 			default: