From 0ed8bcc9dcd09f625ec99a5e9b72705b93eeff2f Mon Sep 17 00:00:00 2001
From: Zhiming Deng <zhiming.deng@student.unimelb.edu.au>
Date: Fri, 24 May 2019 10:59:27 +1000
Subject: [PATCH] Upload New File
---
sha256.h | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 sha256.h
diff --git a/sha256.h b/sha256.h
new file mode 100644
index 0000000..3e92821
--- /dev/null
+++ b/sha256.h
@@ -0,0 +1,34 @@
+/*********************************************************************
+* Filename: sha256.h
+* Author: Brad Conte (brad AT bradconte.com)
+* Copyright:
+* Disclaimer: This code is presented "as is" without any guarantees.
+* Details: Defines the API for the corresponding SHA1 implementation.
+*********************************************************************/
+
+#ifndef SHA256_H
+#define SHA256_H
+
+/*************************** HEADER FILES ***************************/
+#include <stddef.h>
+
+/****************************** MACROS ******************************/
+#define SHA256_BLOCK_SIZE 32 // SHA256 outputs a 32 byte digest
+
+/**************************** DATA TYPES ****************************/
+typedef unsigned char BYTE; // 8-bit byte
+typedef unsigned int WORD; // 32-bit word, change to "long" for 16-bit machines
+
+typedef struct {
+ BYTE data[64];
+ WORD datalen;
+ unsigned long long bitlen;
+ WORD state[8];
+} SHA256_CTX;
+
+/*********************** FUNCTION DECLARATIONS **********************/
+void sha256_init(SHA256_CTX *ctx);
+void sha256_update(SHA256_CTX *ctx, const BYTE data[], size_t len);
+void sha256_final(SHA256_CTX *ctx, BYTE hash[]);
+
+#endif // SHA256_H
--
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