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extract block size and digest size as macros in ripemd160

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This commit is contained in:
Pavol Rusnak 2016-11-01 16:32:44 +01:00
parent f4e4c29356
commit a91e005633
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
2 changed files with 14 additions and 11 deletions
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16
ripemd160.c
View File

@ -70,7 +70,7 @@ void ripemd160_Init(RIPEMD160_CTX *ctx)
/*
* Process one block
*/
void ripemd160_process( RIPEMD160_CTX *ctx, const uint8_t data[64] )
void ripemd160_process( RIPEMD160_CTX *ctx, const uint8_t data[RIPEMD160_BLOCK_LENGTH] )
{
uint32_t A, B, C, D, E, Ap, Bp, Cp, Dp, Ep, X[16];
@ -260,7 +260,7 @@ void ripemd160_Update( RIPEMD160_CTX *ctx, const uint8_t *input, uint32_t ilen )
return;
left = ctx->total[0] & 0x3F;
fill = 64 - left;
fill = RIPEMD160_BLOCK_LENGTH - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
@ -277,11 +277,11 @@ void ripemd160_Update( RIPEMD160_CTX *ctx, const uint8_t *input, uint32_t ilen )
left = 0;
}
while( ilen >= 64 )
while( ilen >= RIPEMD160_BLOCK_LENGTH )
{
ripemd160_process( ctx, input );
input += 64;
ilen -= 64;
input += RIPEMD160_BLOCK_LENGTH;
ilen -= RIPEMD160_BLOCK_LENGTH;
}
if( ilen > 0 )
@ -290,7 +290,7 @@ void ripemd160_Update( RIPEMD160_CTX *ctx, const uint8_t *input, uint32_t ilen )
}
}
static const uint8_t ripemd160_padding[64] =
static const uint8_t ripemd160_padding[RIPEMD160_BLOCK_LENGTH] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@ -301,7 +301,7 @@ static const uint8_t ripemd160_padding[64] =
/*
* RIPEMD-160 final digest
*/
void ripemd160_Final( RIPEMD160_CTX *ctx, uint8_t output[20] )
void ripemd160_Final( RIPEMD160_CTX *ctx, uint8_t output[RIPEMD160_DIGEST_LENGTH] )
{
uint32_t last, padn;
uint32_t high, low;
@ -330,7 +330,7 @@ void ripemd160_Final( RIPEMD160_CTX *ctx, uint8_t output[20] )
/*
* output = RIPEMD-160( input buffer )
*/
void ripemd160(const uint8_t *msg, uint32_t msg_len, uint8_t hash[20])
void ripemd160(const uint8_t *msg, uint32_t msg_len, uint8_t hash[RIPEMD160_DIGEST_LENGTH])
{
RIPEMD160_CTX ctx;
ripemd160_Init( &ctx );

9
ripemd160.h
View File

@ -3,15 +3,18 @@
#include <stdint.h>
#define RIPEMD160_BLOCK_LENGTH 64
#define RIPEMD160_DIGEST_LENGTH 20
typedef struct _RIPEMD160_CTX {
uint32_t total[2]; /*!< number of bytes processed */
uint32_t state[5]; /*!< intermediate digest state */
uint8_t buffer[64]; /*!< data block being processed */
uint8_t buffer[RIPEMD160_BLOCK_LENGTH]; /*!< data block being processed */
} RIPEMD160_CTX;
void ripemd160_Init(RIPEMD160_CTX *ctx);
void ripemd160_Update(RIPEMD160_CTX *ctx, const uint8_t *input, uint32_t ilen);
void ripemd160_Final(RIPEMD160_CTX *ctx, uint8_t output[20]);
void ripemd160(const uint8_t *msg, uint32_t msg_len, uint8_t hash[20]);
void ripemd160_Final(RIPEMD160_CTX *ctx, uint8_t output[RIPEMD160_DIGEST_LENGTH]);
void ripemd160(const uint8_t *msg, uint32_t msg_len, uint8_t hash[RIPEMD160_DIGEST_LENGTH]);
#endif