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SSL reproducible test mode

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This commit is contained in:
Philippe Antoine 2019-06-06 21:24:31 +02:00
parent 048df33d62
commit aa4d15264a
2 changed files with 143 additions and 16 deletions
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80
programs/ssl/ssl_client2.c
View file

@ -131,6 +131,7 @@ int main( void )
#define DFL_ETM -1
#define DFL_CA_CALLBACK 0
#define DFL_EAP_TLS 0
#define DFL_REPRODUCIBLE 0
#define GET_REQUEST "GET %s HTTP/1.0\r\nExtra-header: "
#define GET_REQUEST_END "\r\n\r\n"
@ -482,6 +483,7 @@ struct options
const char *cid_val; /* the CID to use for incoming messages */
const char *cid_val_renego; /* the CID to use for incoming messages
* after renegotiation */
int reproducible; /* make communication reproducible */
} opt;
int query_config( const char *config );
@ -538,6 +540,42 @@ static void my_debug( void *ctx, int level,
fflush( (FILE *) ctx );
}
mbedtls_time_t dummy_constant_time( mbedtls_time_t* time )
{
(void) time;
return 0x5af2a056;
}
int dummy_random( void *p_rng, unsigned char *output, size_t output_len )
{
int ret;
size_t i;
//use mbedtls_ctr_drbg_random to find bugs in it
ret = mbedtls_ctr_drbg_random(p_rng, output, output_len);
for (i=0; i<output_len; i++) {
//replace result with pseudo random
output[i] = (unsigned char) rand();
}
return( ret );
}
int dummy_entropy( void *data, unsigned char *output, size_t len )
{
size_t i;
(void) data;
//use mbedtls_entropy_func to find bugs in it
//test performance impact of entropy
//ret = mbedtls_entropy_func(data, output, len);
for (i=0; i<len; i++) {
//replace result with pseudo random
output[i] = (unsigned char) rand();
}
return( 0 );
}
#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
int ca_callback( void *data, mbedtls_x509_crt const *child,
mbedtls_x509_crt **candidates )
@ -1025,6 +1063,7 @@ int main( int argc, char *argv[] )
opt.etm = DFL_ETM;
opt.dgram_packing = DFL_DGRAM_PACKING;
opt.eap_tls = DFL_EAP_TLS;
opt.reproducible = DFL_REPRODUCIBLE;
for( i = 1; i < argc; i++ )
{
@ -1411,6 +1450,10 @@ int main( int argc, char *argv[] )
if( opt.eap_tls < 0 || opt.eap_tls > 1 )
goto usage;
}
else if( strcmp( p, "reproducible" ) == 0 )
{
opt.reproducible = 1;
}
else
goto usage;
}
@ -1663,13 +1706,24 @@ int main( int argc, char *argv[] )
fflush( stdout );
mbedtls_entropy_init( &entropy );
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
&entropy, (const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n",
-ret );
goto exit;
if (opt.reproducible) {
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, dummy_entropy,
&entropy, (const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n",
-ret );
goto exit;
}
} else {
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
&entropy, (const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n",
-ret );
goto exit;
}
}
mbedtls_printf( " ok\n" );
@ -1949,7 +2003,17 @@ int main( int argc, char *argv[] )
}
#endif
mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
if (opt.reproducible) {
srand(1);
mbedtls_ssl_conf_rng( &conf, dummy_random, &ctr_drbg );
#if defined(MBEDTLS_PLATFORM_TIME_ALT)
mbedtls_platform_set_time( dummy_constant_time );
#else
fprintf(stderr, "Warning: reprpduce without constant time\n");
#endif
} else {
mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
}
mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
mbedtls_ssl_conf_read_timeout( &conf, opt.read_timeout );

79
programs/ssl/ssl_server2.c
View file

@ -173,6 +173,7 @@ int main( void )
#define DFL_ETM -1
#define DFL_CA_CALLBACK 0
#define DFL_EAP_TLS 0
#define DFL_REPRODUCIBLE 0
#define LONG_RESPONSE "<p>01-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \
"02-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \
@ -597,6 +598,7 @@ struct options
const char *cid_val; /* the CID to use for incoming messages */
const char *cid_val_renego; /* the CID to use for incoming messages
* after renegotiation */
int reproducible; /* make communication reproducible */
} opt;
int query_config( const char *config );
@ -652,6 +654,41 @@ static void my_debug( void *ctx, int level,
fflush( (FILE *) ctx );
}
mbedtls_time_t dummy_constant_time( mbedtls_time_t* time )
{
(void) time;
return 0x5af2a056;
}
int dummy_random( void *p_rng, unsigned char *output, size_t output_len )
{
int ret;
size_t i;
//use mbedtls_ctr_drbg_random to find bugs in it
ret = mbedtls_ctr_drbg_random(p_rng, output, output_len);
for (i=0; i<output_len; i++) {
//replace result with pseudo random
output[i] = (unsigned char) rand();
}
return( ret );
}
int dummy_entropy( void *data, unsigned char *output, size_t len )
{
size_t i;
(void) data;
//use mbedtls_entropy_func to find bugs in it
//test performance impact of entropy
//ret = mbedtls_entropy_func(data, output, len);
for (i=0; i<len; i++) {
//replace result with pseudo random
output[i] = (unsigned char) rand();
}
return( 0 );
}
#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
int ca_callback( void *data, mbedtls_x509_crt const *child,
mbedtls_x509_crt **candidates)
@ -1728,6 +1765,7 @@ int main( int argc, char *argv[] )
opt.extended_ms = DFL_EXTENDED_MS;
opt.etm = DFL_ETM;
opt.eap_tls = DFL_EAP_TLS;
opt.reproducible = DFL_REPRODUCIBLE;
for( i = 1; i < argc; i++ )
{
@ -2146,6 +2184,10 @@ int main( int argc, char *argv[] )
if( opt.eap_tls < 0 || opt.eap_tls > 1 )
goto usage;
}
else if( strcmp( p, "reproducible" ) == 0 )
{
opt.reproducible = 1;
}
else
goto usage;
}
@ -2446,13 +2488,24 @@ int main( int argc, char *argv[] )
fflush( stdout );
mbedtls_entropy_init( &entropy );
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
&entropy, (const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n",
-ret );
goto exit;
if (opt.reproducible) {
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, dummy_entropy,
&entropy, (const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n",
-ret );
goto exit;
}
} else {
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
&entropy, (const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n",
-ret );
goto exit;
}
}
mbedtls_printf( " ok\n" );
@ -2771,7 +2824,17 @@ int main( int argc, char *argv[] )
}
#endif
mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
if (opt.reproducible) {
srand(1);
mbedtls_ssl_conf_rng( &conf, dummy_random, &ctr_drbg );
#if defined(MBEDTLS_PLATFORM_TIME_ALT)
mbedtls_platform_set_time( dummy_constant_time );
#else
fprintf(stderr, "Warning: reprpduce without constant time\n");
#endif
} else {
mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
}
mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
#if defined(MBEDTLS_SSL_CACHE_C)