Georgios Solidakis / IndiCorp

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of Crypto_light by Edward Stott

hash/SHA2_32.h@7:2dbbdfb08123, 2013-09-14 (annotated)

Committer:
feb11
Date:
Sat Sep 14 18:21:32 2013 +0000
Revision:
7:2dbbdfb08123
Parent:
SHA2_32.h@6:19aa835f2bbb 
added DES (not tested yet)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
feb11 0:7a1237bd2d13 1 #ifndef SHA2_32_H
feb11 0:7a1237bd2d13 2 #define SHA2_32_H
feb11 0:7a1237bd2d13 3
feb11 0:7a1237bd2d13 4 #include <stdint.h>
feb11 0:7a1237bd2d13 5
feb11 0:7a1237bd2d13 6 enum SHA_32_TYPE
feb11 0:7a1237bd2d13 7 {
feb11 0:7a1237bd2d13 8 SHA_224,
feb11 0:7a1237bd2d13 9 SHA_256
feb11 0:7a1237bd2d13 10 };
feb11 0:7a1237bd2d13 11
feb11 0:7a1237bd2d13 12 class SHA2_32
feb11 0:7a1237bd2d13 13 {
feb11 0:7a1237bd2d13 14 public :
feb11 0:7a1237bd2d13 15
feb11 0:7a1237bd2d13 16 SHA2_32(SHA_32_TYPE type);
feb11 6:19aa835f2bbb 17 void update(uint8_t *data, uint32_t length);
feb11 5:06cd9c8afa0b 18 void finalize(uint8_t *digest);
feb11 6:19aa835f2bbb 19
feb11 6:19aa835f2bbb 20 static void computeHash(SHA_32_TYPE type, uint8_t *digest, uint8_t *data, uint32_t length);
feb11 0:7a1237bd2d13 21
feb11 0:7a1237bd2d13 22 private :
feb11 0:7a1237bd2d13 23
feb11 0:7a1237bd2d13 24 static void computeBlock(uint32_t *h02,
feb11 0:7a1237bd2d13 25 uint32_t *h12,
feb11 0:7a1237bd2d13 26 uint32_t *h22,
feb11 0:7a1237bd2d13 27 uint32_t *h32,
feb11 0:7a1237bd2d13 28 uint32_t *h42,
feb11 0:7a1237bd2d13 29 uint32_t *h52,
feb11 0:7a1237bd2d13 30 uint32_t *h62,
feb11 0:7a1237bd2d13 31 uint32_t *h72,
feb11 0:7a1237bd2d13 32 uint8_t *buffer);
feb11 0:7a1237bd2d13 33
feb11 0:7a1237bd2d13 34 SHA_32_TYPE type;
feb11 0:7a1237bd2d13 35 uint32_t h0, h1, h2, h3, h4, h5, h6, h7;
feb11 0:7a1237bd2d13 36 uint32_t totalBufferLength;
feb11 0:7a1237bd2d13 37 uint8_t buffer[64];
feb11 0:7a1237bd2d13 38 uint8_t bufferLength;
feb11 0:7a1237bd2d13 39 };
feb11 0:7a1237bd2d13 40
feb11 0:7a1237bd2d13 41 #endif