From 1368ae1fb1f2932de1943208a62e01e714bd78d2 Mon Sep 17 00:00:00 2001
From: toddouska <todd@wolfssl.com>
Date: Mon, 31 Aug 2015 13:51:52 -0700
Subject: [PATCH] add SHA512 signature creation

---
 wolfcrypt/src/asn.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index 0946c6da8..ef8b6730c 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -5985,7 +5985,7 @@ static int MakeSignature(const byte* buffer, int sz, byte* sig, int sigSz,
                          int sigAlgoType)
 {
     int encSigSz, digestSz, typeH = 0, ret = 0;
-    byte digest[SHA256_DIGEST_SIZE]; /* max size */
+    byte digest[MAX_DIGEST_SIZE]; /* max size */
 #ifdef WOLFSSL_SMALL_STACK
     byte* encSig;
 #else
@@ -6032,6 +6032,15 @@ static int MakeSignature(const byte* buffer, int sz, byte* sig, int sigSz,
             digestSz = SHA256_DIGEST_SIZE;
         }
         break;
+    #endif
+    #ifdef WOLFSSL_SHA512
+        case CTC_SHA512wRSA:
+        case CTC_SHA512wECDSA:
+        if ((ret = wc_Sha512Hash(buffer, sz, digest)) == 0) {
+            typeH    = SHA256h;
+            digestSz = SHA256_DIGEST_SIZE;
+        }
+        break;
     #endif
         default:
             WOLFSSL_MSG("MakeSignautre called with unsupported type");