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Introduce polarssl_zeroize() instead of memset() for zeroization

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This commit is contained in:
Paul Bakker 2014-06-13 17:20:13 +02:00
parent bbcb1ce703
commit 3461772559
36 changed files with 325 additions and 129 deletions
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7
library/x509write_csr.c
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@ -47,6 +47,11 @@
#include <string.h>
#include <stdlib.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;
}
void x509write_csr_init( x509write_csr *ctx )
{
memset( ctx, 0, sizeof(x509write_csr) );
@ -57,7 +62,7 @@ void x509write_csr_free( x509write_csr *ctx )
asn1_free_named_data_list( &ctx->subject );
asn1_free_named_data_list( &ctx->extensions );
memset( ctx, 0, sizeof(x509write_csr) );
polarssl_zeroize( ctx, sizeof(x509write_csr) );
}
void x509write_csr_set_md_alg( x509write_csr *ctx, md_type_t md_alg )