From a59912f3afa7627f3da79804a9be693a7d314ebc Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Mon, 12 Mar 2018 16:56:47 -0700
Subject: [PATCH] SHA512 using libcrypto (not enabled by default)

---
 node/SHA512.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/node/SHA512.cpp b/node/SHA512.cpp
index 226c23e18..589913d77 100644
--- a/node/SHA512.cpp
+++ b/node/SHA512.cpp
@@ -28,6 +28,20 @@ void SHA512::hash(void *digest,const void *data,unsigned int len)
 }
 #endif
 
+#ifdef ZT_USE_LIBCRYPTO
+#include <openssl/sha.h>
+#define ZT_HAVE_NATIVE_SHA512
+namespace ZeroTier {
+void SHA512::hash(void *digest,const void *data,unsigned int len)
+{
+	SHA512_CTX ctx;
+	SHA512_Init(&ctx);
+	SHA512_Update(&ctx,data,len);
+	SHA512_Final(reinterpret_cast<unsigned char *>(digest),&ctx);
+}
+}
+#endif
+
 #ifndef ZT_HAVE_NATIVE_SHA512
 
 namespace ZeroTier {