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/* BEGIN_HEADER */
#include "mbedtls/base64.h"
#include "constant_time_internal.h"
#include "constant_time_invasive.h"
#include <test/constant_flow.h>
#if defined(MBEDTLS_TEST_HOOKS)
static const char base64_digits[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
#endif /* MBEDTLS_TEST_HOOKS */
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_BASE64_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS */
void mask_of_range( int low_arg, int high_arg )
{
unsigned char low = low_arg, high = high_arg;
unsigned c;
for( c = 0; c <= 0xff; c++ )
{
mbedtls_test_set_step( c );
TEST_CF_SECRET( &c, sizeof( c ) );
unsigned char m = mbedtls_ct_uchar_mask_of_range( low, high, c );
TEST_CF_PUBLIC( &c, sizeof( c ) );
TEST_CF_PUBLIC( &m, sizeof( m ) );
if( low <= c && c <= high )
TEST_EQUAL( m, 0xff );
else
TEST_EQUAL( m, 0 );
}
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS */
void enc_chars( )
{
for( unsigned value = 0; value < 64; value++ )
{
mbedtls_test_set_step( value );
TEST_CF_SECRET( &value, sizeof( value ) );
unsigned char digit = mbedtls_ct_base64_enc_char( value );
TEST_CF_PUBLIC( &value, sizeof( value ) );
TEST_CF_PUBLIC( &digit, sizeof( digit ) );
TEST_EQUAL( digit, base64_digits[value] );
}
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS */
void dec_chars( )
{
char *p;
signed char expected;
for( unsigned c = 0; c <= 0xff; c++ )
{
mbedtls_test_set_step( c );
/* base64_digits is 0-terminated. sizeof()-1 excludes the trailing 0. */
p = memchr( base64_digits, c, sizeof( base64_digits ) - 1 );
if( p == NULL )
expected = -1;
else
expected = p - base64_digits;
TEST_CF_SECRET( &c, sizeof( c ) );
signed char actual = mbedtls_ct_base64_dec_value( c );
TEST_CF_PUBLIC( &c, sizeof( c ) );
TEST_CF_PUBLIC( &actual, sizeof( actual ) );
TEST_EQUAL( actual, expected );
}
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_base64_encode( char * src_string, char * dst_string,
int dst_buf_size, int result )
{
unsigned char src_str[1000];
unsigned char dst_str[1000];
size_t len, src_len;
memset(src_str, 0x00, 1000);
memset(dst_str, 0x00, 1000);
strncpy( (char *) src_str, src_string, sizeof(src_str) - 1 );
src_len = strlen( (char *) src_str );
TEST_CF_SECRET( src_str, sizeof( src_str ) );
TEST_ASSERT( mbedtls_base64_encode( dst_str, dst_buf_size, &len, src_str, src_len) == result );
TEST_CF_PUBLIC( src_str, sizeof( src_str ) );
/* dest_str will have had tainted data copied to it, prevent the TEST_ASSERT below from triggering
CF failures by unmarking it. */
TEST_CF_PUBLIC( dst_str, len );
if( result == 0 )
{
TEST_ASSERT( strcmp( (char *) dst_str, dst_string ) == 0 );
}
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_base64_decode( char * src_string, char * dst_string, int result )
{
unsigned char src_str[1000];
unsigned char dst_str[1000];
size_t len;
int res;
memset(src_str, 0x00, 1000);
memset(dst_str, 0x00, 1000);
strncpy( (char *) src_str, src_string, sizeof(src_str) - 1 );
res = mbedtls_base64_decode( dst_str, sizeof( dst_str ), &len, src_str, strlen( (char *) src_str ) );
TEST_ASSERT( res == result );
if( result == 0 )
{
TEST_ASSERT( strcmp( (char *) dst_str, dst_string ) == 0 );
}
}
/* END_CASE */
/* BEGIN_CASE */
void base64_encode_hex( data_t * src, char * dst, int dst_buf_size,
int result )
{
unsigned char *res = NULL;
size_t len;
res = mbedtls_test_zero_alloc( dst_buf_size );
TEST_CF_SECRET( src->x, src->len );
TEST_ASSERT( mbedtls_base64_encode( res, dst_buf_size, &len, src->x, src->len ) == result );
TEST_CF_PUBLIC( src->x, src->len );
/* res will have had tainted data copied to it, prevent the TEST_ASSERT below from triggering
CF failures by unmarking it. */
TEST_CF_PUBLIC( res, len );
if( result == 0 )
{
TEST_ASSERT( len == strlen( dst ) );
TEST_ASSERT( memcmp( dst, res, len ) == 0 );
}
exit:
mbedtls_free( res );
}
/* END_CASE */
/* BEGIN_CASE */
void base64_decode_hex( char * src, data_t * dst, int dst_buf_size,
int result )
{
unsigned char *res = NULL;
size_t len;
res = mbedtls_test_zero_alloc( dst_buf_size );
TEST_ASSERT( mbedtls_base64_decode( res, dst_buf_size, &len, (unsigned char *) src,
strlen( src ) ) == result );
if( result == 0 )
{
TEST_ASSERT( len == dst->len );
TEST_ASSERT( memcmp( dst->x, res, len ) == 0 );
}
exit:
mbedtls_free( res );
}
/* END_CASE */
/* BEGIN_CASE */
void base64_decode_hex_src( data_t * src, char * dst_ref, int result )
{
unsigned char dst[1000] = { 0 };
size_t len;
TEST_ASSERT( mbedtls_base64_decode( dst, sizeof( dst ), &len, src->x, src->len ) == result );
if( result == 0 )
{
TEST_ASSERT( len == strlen( dst_ref ) );
TEST_ASSERT( memcmp( dst, dst_ref, len ) == 0 );
}
exit:
;;
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
void base64_selftest( )
{
TEST_ASSERT( mbedtls_base64_self_test( 1 ) == 0 );
}
/* END_CASE */
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