From 15e31eb464b31c30499131e184f77d0ad13dcdec Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@cryptomilk.org>
Date: Fri, 18 Oct 2013 23:21:52 +0200
Subject: wrapper: Add more evp functions.

---
 src/libcrypto.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'src/libcrypto.c')

diff --git a/src/libcrypto.c b/src/libcrypto.c
index 44b0fb36..bb1d96ad 100644
--- a/src/libcrypto.c
+++ b/src/libcrypto.c
@@ -123,6 +123,30 @@ void evp(int nid, unsigned char *digest, int len, unsigned char *hash, unsigned
     EVP_DigestUpdate(&md, digest, len);
     EVP_DigestFinal(&md, hash, hlen);
 }
+
+EVPCTX evp_init(int nid)
+{
+    const EVP_MD *evp_md = nid_to_evpmd(nid);
+
+    EVPCTX ctx = malloc(sizeof(EVP_MD_CTX));
+    if (ctx == NULL) {
+        return NULL;
+    }
+
+    EVP_DigestInit(ctx, evp_md);
+
+    return ctx;
+}
+
+void evp_update(EVPCTX ctx, const void *data, unsigned long len)
+{
+    EVP_DigestUpdate(ctx, data, len);
+}
+
+void evp_final(EVPCTX ctx, unsigned char *md, unsigned int *mdlen)
+{
+    EVP_DigestFinal(ctx, md, mdlen);
+}
 #endif
 
 SHA256CTX sha256_init(void){
-- 
cgit v1.2.3