Geremia G / Crypto

Fork of François Berder Crypto, fixed AES CBC and small rework

Dependents:   AES_example shaun_larada Smartage

Fork of Crypto by Francois Berder

hash/SHA2_32.h@16:4399e2e6260b, 2015-01-28 (annotated)

Committer:
Geremia
Date:
Wed Jan 28 17:55:13 2015 +0000
Revision:
16:4399e2e6260b
Parent:
7:2dbbdfb08123 
AES: bugfixed CBC, added PCBC (i could add CFB and OFB if needed), added public setIV(), moved keyExpansion() to public, in and out buffers can be the same

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