mbedtls/tests/suites/test_suite_pem.function
Manuel Pégourié-Gonnard 1df23b903f Check the result of PEM decoding
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2022-02-08 14:53:50 -05:00

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/* BEGIN_HEADER */
#include "mbedtls/base64.h"
#include "mbedtls/pem.h"
#include "mbedtls/des.h"
#include "mbedtls/aes.h"
/* END_HEADER */
/* BEGIN_CASE depends_on:MBEDTLS_PEM_WRITE_C */
void mbedtls_pem_write_buffer( char * start, char * end, data_t * buf,
char * result_str )
{
unsigned char *check_buf = NULL;
int ret;
size_t olen = 0, olen2 = 0;
ret = mbedtls_pem_write_buffer( start, end, buf->x, buf->len, NULL, 0, &olen );
TEST_ASSERT( ret == MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL );
check_buf = (unsigned char *) mbedtls_calloc( 1, olen );
TEST_ASSERT( check_buf != NULL );
ret = mbedtls_pem_write_buffer( start, end, buf->x, buf->len, check_buf, olen, &olen2 );
TEST_ASSERT( olen2 <= olen );
TEST_ASSERT( olen > strlen( (char*) result_str ) );
TEST_ASSERT( ret == 0 );
TEST_ASSERT( strncmp( (char *) check_buf, (char *) result_str, olen ) == 0 );
exit:
mbedtls_free( check_buf );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_AES_C:MBEDTLS_DES_C:MBEDTLS_MD5_C:MBEDTLS_CIPHER_MODE_CBC */
void mbedtls_pem_read_buffer( char *header, char *footer, char *data,
char *pwd, int res, data_t *out )
{
mbedtls_pem_context ctx;
int ret;
size_t use_len = 0;
size_t pwd_len = strlen( pwd );
const unsigned char *buf;
mbedtls_pem_init( &ctx );
ret = mbedtls_pem_read_buffer( &ctx, header, footer, (unsigned char *)data,
(unsigned char *)pwd, pwd_len, &use_len );
TEST_ASSERT( ret == res );
if( ret != 0 )
goto exit;
use_len = 0;
buf = mbedtls_pem_get_buffer( &ctx, &use_len );
TEST_EQUAL( use_len, out->len );
TEST_ASSERT( memcmp( out->x, buf, out->len ) == 0 );
exit:
mbedtls_pem_free( &ctx );
}
/* END_CASE */