From e93d7d3c93d5445832be0fb9032b71039a907029 Mon Sep 17 00:00:00 2001
From: Takashi Kojo <kojo@wolfsssl.com>
Date: Thu, 23 Nov 2017 07:00:37 +0900
Subject: [PATCH] fix for MD5 case, "recover hmac", in HMAC_init

---
 src/ssl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ssl.c b/src/ssl.c
index 615b93a0b..5f20d9812 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -24812,7 +24812,7 @@ int wolfSSL_HMAC_Init(WOLFSSL_HMAC_CTX* ctx, const void* key, int keylen,
             ctx->save_len = keylen;
         }
         /* OpenSSL compat, no error */
-    } else if(ctx->type) {
+    } else if(ctx->type >= 0) { /* MD5 == 0 */
         WOLFSSL_MSG("recover hmac");
         if (wc_HmacInit(&ctx->hmac, NULL, INVALID_DEVID) == 0) {
             wc_HmacSetKey(&ctx->hmac, ctx->type, (byte *)&ctx->save_key,