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Zeroize buffers in various modules

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This commit is contained in:
Andres Amaya Garcia 2017-07-12 10:51:22 +01:00
parent c381444c7f
commit a0ae1db2f7
1 changed files with 9 additions and 2 deletions
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11
library/ssl_tls.c
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@ -4140,12 +4140,19 @@ int ssl_set_psk( ssl_context *ssl, const unsigned char *psk, size_t psk_len,
return( POLARSSL_ERR_SSL_BAD_INPUT_DATA ); return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
} }
if( ssl->psk != NULL || ssl->psk_identity != NULL ) if( ssl->psk != NULL )
{ {
polarssl_zeroize( ssl->psk, ssl->psk_len );
polarssl_free( ssl->psk ); polarssl_free( ssl->psk );
polarssl_free( ssl->psk_identity );
ssl->psk = NULL; ssl->psk = NULL;
ssl->psk_len = 0;
}
if( ssl->psk_identity != NULL )
{
polarssl_free( ssl->psk_identity );
ssl->psk_identity = NULL; ssl->psk_identity = NULL;
ssl->psk_identity_len = 0;
} }
if( ( ssl->psk = polarssl_malloc( psk_len ) ) == NULL || if( ( ssl->psk = polarssl_malloc( psk_len ) ) == NULL ||