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Use polarssl_zeroize() in asn1parse too

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This commit is contained in:
Manuel Pégourié-Gonnard 2014-08-21 18:15:09 +02:00
parent a676acf66b
commit 8ef7088bb9
1 changed files with 7 additions and 2 deletions
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9
library/asn1parse.c
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@ -47,6 +47,11 @@
#include <string.h> #include <string.h>
#include <stdlib.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;
}
/* /*
* ASN.1 DER decoding routines * ASN.1 DER decoding routines
*/ */
@ -311,7 +316,7 @@ int asn1_get_alg( unsigned char **p,
if( *p == end ) if( *p == end )
{ {
memset( params, 0, sizeof(asn1_buf) ); polarssl_zeroize( params, sizeof(asn1_buf) );
return( 0 ); return( 0 );
} }
@ -356,7 +361,7 @@ void asn1_free_named_data( asn1_named_data *cur )
polarssl_free( cur->oid.p ); polarssl_free( cur->oid.p );
polarssl_free( cur->val.p ); polarssl_free( cur->val.p );
memset( cur, 0, sizeof( asn1_named_data ) ); polarssl_zeroize( cur, sizeof( asn1_named_data ) );
} }
void asn1_free_named_data_list( asn1_named_data **head ) void asn1_free_named_data_list( asn1_named_data **head )