From 71da84122f02c8de85de189302ca72f5fc814cb1 Mon Sep 17 00:00:00 2001
From: Chris Conlon <chris@wolfssl.com>
Date: Fri, 7 Nov 2014 16:33:38 -0700
Subject: [PATCH] expose EncodeSignature() for DER-encoded comparisons

---
 ctaocrypt/src/asn.c           | 33 +++++++++++++++++++++++++++++++++
 cyassl/ctaocrypt/asn.h        |  3 ---
 cyassl/ctaocrypt/asn_public.h |  4 ++++
 3 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/ctaocrypt/src/asn.c b/ctaocrypt/src/asn.c
index 96a06b937..ef0389625 100644
--- a/ctaocrypt/src/asn.c
+++ b/ctaocrypt/src/asn.c
@@ -2894,6 +2894,39 @@ word32 EncodeSignature(byte* out, const byte* digest, word32 digSz, int hashOID)
 }
 
 
+int GetCTC_HashOID(int hashType)
+{
+    switch (hashType) {
+#ifdef CYASSL_MD2
+        case MD2:
+            return MD2h;
+#endif
+#ifndef NO_MD5
+        case MD5:
+            return MD5h;
+#endif
+#ifndef NO_SHA
+        case SHA:
+            return SHAh;
+#endif
+#ifndef NO_SHA256
+        case SHA256:
+            return SHA256h;
+#endif
+#ifdef CYASSL_SHA384
+        case SHA384:
+            return SHA384h;
+#endif
+#ifdef CYASSL_SHA512
+        case SHA512:
+            return SHA512h;
+#endif
+        default:
+            return 0;
+    };
+}
+
+
 /* return true (1) or false (0) for Confirmation */
 static int ConfirmSignature(const byte* buf, word32 bufSz,
     const byte* key, word32 keySz, word32 keyOID,
diff --git a/cyassl/ctaocrypt/asn.h b/cyassl/ctaocrypt/asn.h
index ff0c3f6b4..8df0b1d6c 100644
--- a/cyassl/ctaocrypt/asn.h
+++ b/cyassl/ctaocrypt/asn.h
@@ -499,9 +499,6 @@ CYASSL_TEST_API int  ParseCert(DecodedCert*, int type, int verify, void* cm);
 CYASSL_LOCAL int ParseCertRelative(DecodedCert*, int type, int verify,void* cm);
 CYASSL_LOCAL int DecodeToKey(DecodedCert*, int verify);
 
-CYASSL_LOCAL word32 EncodeSignature(byte* out, const byte* digest, word32 digSz,
-                                    int hashOID);
-
 CYASSL_LOCAL Signer* MakeSigner(void*);
 CYASSL_LOCAL void    FreeSigner(Signer*, void*);
 CYASSL_LOCAL void    FreeSignerTable(Signer**, int, void*);
diff --git a/cyassl/ctaocrypt/asn_public.h b/cyassl/ctaocrypt/asn_public.h
index eca28db23..405d95368 100644
--- a/cyassl/ctaocrypt/asn_public.h
+++ b/cyassl/ctaocrypt/asn_public.h
@@ -181,6 +181,10 @@ CYASSL_API int  SetDatesBuffer(Cert*, const byte*, int);
     CYASSL_API int EccKeyToDer(ecc_key*, byte* output, word32 inLen);
 #endif
 
+/* DER encode signature */
+CYASSL_API word32 EncodeSignature(byte* out, const byte* digest, word32 digSz,
+                                  int hashOID);
+CYASSL_API int GetCTC_HashOID(int hashType);
 
 #ifdef __cplusplus
     } /* extern "C" */