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Add _init() and _free() for hash modules

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This commit is contained in:
Paul Bakker 2014-06-26 12:09:34 +02:00
parent 8cfd9d8c59
commit 5b4af39a36
19 changed files with 346 additions and 73 deletions
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25
library/ripemd160.c
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@ -81,6 +81,19 @@ static void polarssl_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
void ripemd160_init( ripemd160_context *ctx )
{
memset( ctx, 0, sizeof( ripemd160_context ) );
}
void ripemd160_free( ripemd160_context *ctx )
{
if( ctx == NULL )
return;
polarssl_zeroize( ctx, sizeof( ripemd160_context ) );
}
/*
* RIPEMD-160 context setup
*/
@ -364,11 +377,11 @@ void ripemd160( const unsigned char *input, size_t ilen,
{
ripemd160_context ctx;
ripemd160_init( &ctx );
ripemd160_starts( &ctx );
ripemd160_update( &ctx, input, ilen );
ripemd160_finish( &ctx, output );
polarssl_zeroize( &ctx, sizeof( ripemd160_context ) );
ripemd160_free( &ctx );
}
#if defined(POLARSSL_FS_IO)
@ -385,14 +398,14 @@ int ripemd160_file( const char *path, unsigned char output[20] )
if( ( f = fopen( path, "rb" ) ) == NULL )
return( POLARSSL_ERR_RIPEMD160_FILE_IO_ERROR );
ripemd160_init( &ctx );
ripemd160_starts( &ctx );
while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
ripemd160_update( &ctx, buf, n );
ripemd160_finish( &ctx, output );
polarssl_zeroize( &ctx, sizeof( ripemd160_context ) );
ripemd160_free( &ctx );
if( ferror( f ) != 0 )
{
@ -479,11 +492,11 @@ void ripemd160_hmac( const unsigned char *key, size_t keylen,
{
ripemd160_context ctx;
ripemd160_init( &ctx );
ripemd160_hmac_starts( &ctx, key, keylen );
ripemd160_hmac_update( &ctx, input, ilen );
ripemd160_hmac_finish( &ctx, output );
polarssl_zeroize( &ctx, sizeof( ripemd160_context ) );
ripemd160_free( &ctx );
}