aboutsummaryrefslogtreecommitdiff
path: root/sha1.h
diff options
context:
space:
mode:
authorMark Haines <mjark@negativecurvature.net>2015-02-26 16:43:06 +0000
committerMark Haines <mjark@negativecurvature.net>2015-02-26 16:43:06 +0000
commitc61e5359cb454ae20c0b7b057c3a7b53e2beefd6 (patch)
tree7304b549b7ff13c44cfc59a753d7515c8a6289b0 /sha1.h
Squashed 'lib/crypto-algorithms/' content from commit 100f4ff
git-subtree-dir: lib/crypto-algorithms git-subtree-split: 100f4ff91b5a5b31a84b3999365c3058df6251ea
Diffstat (limited to 'sha1.h')
-rw-r--r--sha1.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/sha1.h b/sha1.h
new file mode 100644
index 0000000..f32bb7c
--- /dev/null
+++ b/sha1.h
@@ -0,0 +1,35 @@
+/*********************************************************************
+* Filename: sha1.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 SHA1_H
+#define SHA1_H
+
+/*************************** HEADER FILES ***************************/
+#include <stddef.h>
+
+/****************************** MACROS ******************************/
+#define SHA1_BLOCK_SIZE 20 // SHA1 outputs a 20 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[5];
+ WORD k[4];
+} SHA1_CTX;
+
+/*********************** FUNCTION DECLARATIONS **********************/
+void sha1_init(SHA1_CTX *ctx);
+void sha1_update(SHA1_CTX *ctx, const BYTE data[], size_t len);
+void sha1_final(SHA1_CTX *ctx, BYTE hash[]);
+
+#endif // SHA1_H