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This commit is contained in:
Paul Bakker 2014-06-18 16:44:11 +02:00
parent 8f870b047c
commit a317a98221
33 changed files with 76 additions and 12 deletions
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13
library/havege.c
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@ -43,6 +43,11 @@
#include <string.h>
/* Implementation that should never be optimized out by the compiler */
static void polarssl_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
/* ------------------------------------------------------------------------
* On average, one iteration accesses two 8-word blocks in the havege WALK
* table, and generates 16 words in the RES array.
@ -200,6 +205,14 @@ void havege_init( havege_state *hs )
havege_fill( hs );
}
void havege_free( havege_state *hs )
{
if( hs == NULL )
return;
polarssl_zeroize( hs, sizeof( havege_state ) );
}
/*
* HAVEGE rand function
*/