From d3cfece2527042b6fbbb09c33d8936f54c9938b7 Mon Sep 17 00:00:00 2001
From: John Jones <jmjatlanta@gmail.com>
Date: Mon, 23 Jan 2017 11:31:24 -0500
Subject: [PATCH] Added sha512 encoding

---
 crypto/Makefile                |  2 +-
 crypto/sha512.c                | 13 +++++++++++++
 include/libp2p/crypto/sha512.h | 11 +++++++++++
 3 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 crypto/sha512.c
 create mode 100644 include/libp2p/crypto/sha512.h

diff --git a/crypto/Makefile b/crypto/Makefile
index adf6fa4..4fa2c34 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -2,7 +2,7 @@ CC = gcc
 CFLAGS = -O0 -I../include -g3
 LFLAGS =
 DEPS = 
-OBJS = rsa.o sha256.o
+OBJS = rsa.o sha256.o sha512.o
 
 %.o: %.c $(DEPS)
 	$(CC) -c -o $@ $< $(CFLAGS)
diff --git a/crypto/sha512.c b/crypto/sha512.c
new file mode 100644
index 0000000..21ffc32
--- /dev/null
+++ b/crypto/sha512.c
@@ -0,0 +1,13 @@
+#include "mbedtls/sha512.h"
+
+/***
+ * hash a string using SHA512
+ * @param input the input string
+ * @param input_length the length of the input string
+ * @param output where to place the results
+ * @returns 1
+ */
+int libp2p_crypto_hashing_sha512(const unsigned char* input, size_t input_length, unsigned char output[128]) {
+	mbedtls_sha512(input, input_length, output, 0);
+	return 1;
+}
diff --git a/include/libp2p/crypto/sha512.h b/include/libp2p/crypto/sha512.h
new file mode 100644
index 0000000..c8d4699
--- /dev/null
+++ b/include/libp2p/crypto/sha512.h
@@ -0,0 +1,11 @@
+#pragma once
+
+/***
+ * hash a string using SHA512
+ * @param input the input string
+ * @param input_length the length of the input string
+ * @param output where to place the results
+ * @returns 1
+ */
+int libp2p_crypto_hashing_sha512(const unsigned char* input, size_t input_length, unsigned char output[128]);
+