From 1e951a9f3b3c35cc108d45acd73147a8dda36f6c Mon Sep 17 00:00:00 2001
From: Tharre <tharre3@gmail.com>
Date: Sun, 24 Aug 2014 00:24:54 +0200
Subject: Replace openssl SHA1 functions with custom version
---
src/sha1.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 src/sha1.h
(limited to 'src/sha1.h')
diff --git a/src/sha1.h b/src/sha1.h
new file mode 100644
index 0000000..ee59229
--- /dev/null
+++ b/src/sha1.h
@@ -0,0 +1,25 @@
+/*
+ * Secure Hash Algorith SHA-1, as published in FIPS PUB 180-2.
+ *
+ * This implementation is in the public domain. Copyright abandoned.
+ * You may do anything you like with it, including evil things.
+ *
+ * This is a rewrite from scratch, based on Linus Torvalds' "block-sha1"
+ * from the git mailing list (August, 2009). Additional optimization
+ * ideas cribbed from
+ * - Artur Skawina (x86, particularly P4, and much benchmarking)
+ * - Nicolas Pitre (ARM)
+ */
+
+#include <stddef.h> /* For size_t */
+#include <stdint.h> /* For uint32_t, uint64_t */
+
+typedef struct SHA_context {
+ uint64_t len; /* May be shrunk to uint32_t */
+ uint32_t iv[5];
+ unsigned char buf[64]; /* Must be 32-bit aligned */
+} SHA_CTX;
+
+void SHA1_Init(struct SHA_context *c);
+void SHA1_Update(struct SHA_context *c, void const *p, size_t n);
+void SHA1_Final(unsigned char hash[20], struct SHA_context *c);
--
cgit v1.2.3-70-g09d2