527 lines
17 KiB
Text
527 lines
17 KiB
Text
/* BEGIN_HEADER */
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#include "mbedtls/pk.h"
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/* For error codes */
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#include "mbedtls/ecp.h"
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#include "mbedtls/rsa.h"
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#include <limits.h>
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#include <stdint.h>
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static int rnd_std_rand( void *rng_state, unsigned char *output, size_t len );
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#define RSA_KEY_SIZE 512
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#define RSA_KEY_LEN 64
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static int pk_genkey( mbedtls_pk_context *pk, int size )
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{
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((void) pk);
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#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME)
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if( mbedtls_pk_get_type( pk ) == MBEDTLS_PK_RSA )
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{
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if( size == 0 )
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size = RSA_KEY_SIZE;
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return( mbedtls_rsa_gen_key( mbedtls_pk_rsa( *pk ),
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rnd_std_rand, NULL, size, 3 ) );
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}
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#endif
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#if defined(MBEDTLS_ECP_C)
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if( mbedtls_pk_get_type( pk ) == MBEDTLS_PK_ECKEY ||
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mbedtls_pk_get_type( pk ) == MBEDTLS_PK_ECKEY_DH ||
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mbedtls_pk_get_type( pk ) == MBEDTLS_PK_ECDSA )
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{
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int ret;
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mbedtls_ecp_group_id curve;
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switch( size )
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{
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case 0:
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case 192:
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curve = MBEDTLS_ECP_DP_SECP192R1;
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break;
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case 224:
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curve = MBEDTLS_ECP_DP_SECP224R1;
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break;
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case 256:
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curve = MBEDTLS_ECP_DP_SECP256R1;
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break;
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case 384:
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curve = MBEDTLS_ECP_DP_SECP384R1;
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break;
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case 521:
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curve = MBEDTLS_ECP_DP_SECP521R1;
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break;
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default:
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return( -1 );
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}
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if( ( ret = mbedtls_ecp_group_load( &mbedtls_pk_ec( *pk )->grp,
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curve ) ) != 0 )
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return( ret );
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return mbedtls_ecp_gen_keypair( &mbedtls_pk_ec( *pk )->grp, &mbedtls_pk_ec( *pk )->d,
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&mbedtls_pk_ec( *pk )->Q, rnd_std_rand, NULL );
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}
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#endif
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return( -1 );
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}
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#if defined(MBEDTLS_RSA_C)
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int mbedtls_rsa_decrypt_func( void *ctx, int mode, size_t *olen,
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const unsigned char *input, unsigned char *output,
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size_t output_max_len )
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{
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return( mbedtls_rsa_pkcs1_decrypt( (mbedtls_rsa_context *) ctx,
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rnd_std_rand, NULL, mode, olen,
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input, output, output_max_len ) );
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}
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int mbedtls_rsa_sign_func( void *ctx,
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int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
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int mode, mbedtls_md_type_t md_alg, unsigned int hashlen,
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const unsigned char *hash, unsigned char *sig )
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{
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((void) f_rng);
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((void) p_rng);
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return( mbedtls_rsa_pkcs1_sign( (mbedtls_rsa_context *) ctx, rnd_std_rand, NULL, mode,
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md_alg, hashlen, hash, sig ) );
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}
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size_t mbedtls_rsa_key_len_func( void *ctx )
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{
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return( ((const mbedtls_rsa_context *) ctx)->len );
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}
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#endif /* MBEDTLS_RSA_C */
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_PK_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE */
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void pk_utils( int type, int size, int len, char * name )
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{
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mbedtls_pk_context pk;
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mbedtls_pk_init( &pk );
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TEST_ASSERT( mbedtls_pk_setup( &pk, mbedtls_pk_info_from_type( type ) ) == 0 );
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TEST_ASSERT( pk_genkey( &pk, size ) == 0 );
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TEST_ASSERT( (int) mbedtls_pk_get_type( &pk ) == type );
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TEST_ASSERT( mbedtls_pk_can_do( &pk, type ) );
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TEST_ASSERT( mbedtls_pk_get_bitlen( &pk ) == (unsigned) size );
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TEST_ASSERT( mbedtls_pk_get_len( &pk ) == (unsigned) len );
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TEST_ASSERT( strcmp( mbedtls_pk_get_name( &pk), name ) == 0 );
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exit:
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_PK_PARSE_C:MBEDTLS_FS_IO */
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void mbedtls_pk_check_pair( char * pub_file, char * prv_file, int ret )
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{
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mbedtls_pk_context pub, prv, alt;
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mbedtls_pk_init( &pub );
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mbedtls_pk_init( &prv );
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mbedtls_pk_init( &alt );
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TEST_ASSERT( mbedtls_pk_parse_public_keyfile( &pub, pub_file ) == 0 );
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TEST_ASSERT( mbedtls_pk_parse_keyfile( &prv, prv_file, NULL ) == 0 );
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TEST_ASSERT( mbedtls_pk_check_pair( &pub, &prv ) == ret );
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#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
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if( mbedtls_pk_get_type( &prv ) == MBEDTLS_PK_RSA )
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{
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TEST_ASSERT( mbedtls_pk_setup_rsa_alt( &alt, mbedtls_pk_rsa( prv ),
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mbedtls_rsa_decrypt_func, mbedtls_rsa_sign_func,
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mbedtls_rsa_key_len_func ) == 0 );
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TEST_ASSERT( mbedtls_pk_check_pair( &pub, &alt ) == ret );
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}
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#endif
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mbedtls_pk_free( &pub );
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mbedtls_pk_free( &prv );
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mbedtls_pk_free( &alt );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
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void pk_rsa_verify_test_vec( data_t * message_str, int digest, int mod,
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int radix_N, char * input_N, int radix_E,
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char * input_E, data_t * result_str,
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int result )
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{
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unsigned char hash_result[1000];
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mbedtls_rsa_context *rsa;
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mbedtls_pk_context pk;
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mbedtls_pk_init( &pk );
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memset( hash_result, 0x00, 1000 );
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TEST_ASSERT( mbedtls_pk_setup( &pk, mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == 0 );
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rsa = mbedtls_pk_rsa( pk );
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rsa->len = mod / 8;
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TEST_ASSERT( mbedtls_mpi_read_string( &rsa->N, radix_N, input_N ) == 0 );
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TEST_ASSERT( mbedtls_mpi_read_string( &rsa->E, radix_E, input_E ) == 0 );
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if( mbedtls_md_info_from_type( digest ) != NULL )
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TEST_ASSERT( mbedtls_md( mbedtls_md_info_from_type( digest ), message_str->x, message_str->len, hash_result ) == 0 );
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TEST_ASSERT( mbedtls_pk_verify( &pk, digest, hash_result, 0,
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result_str->x, mbedtls_pk_get_len( &pk ) ) == result );
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exit:
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
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void pk_rsa_verify_ext_test_vec( data_t * message_str, int digest,
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int mod, int radix_N, char * input_N,
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int radix_E, char * input_E,
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data_t * result_str, int pk_type,
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int mgf1_hash_id, int salt_len, int result )
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{
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unsigned char hash_result[1000];
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mbedtls_rsa_context *rsa;
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mbedtls_pk_context pk;
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mbedtls_pk_rsassa_pss_options pss_opts;
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void *options;
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size_t hash_len;
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mbedtls_pk_init( &pk );
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memset( hash_result, 0x00, 1000 );
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TEST_ASSERT( mbedtls_pk_setup( &pk, mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == 0 );
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rsa = mbedtls_pk_rsa( pk );
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rsa->len = mod / 8;
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TEST_ASSERT( mbedtls_mpi_read_string( &rsa->N, radix_N, input_N ) == 0 );
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TEST_ASSERT( mbedtls_mpi_read_string( &rsa->E, radix_E, input_E ) == 0 );
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if( digest != MBEDTLS_MD_NONE )
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{
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TEST_ASSERT( mbedtls_md( mbedtls_md_info_from_type( digest ),
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message_str->x, message_str->len, hash_result ) == 0 );
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hash_len = 0;
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}
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else
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{
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memcpy( hash_result, message_str->x, message_str->len );
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hash_len = message_str->len;
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}
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if( mgf1_hash_id < 0 )
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{
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options = NULL;
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}
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else
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{
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options = &pss_opts;
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pss_opts.mgf1_hash_id = mgf1_hash_id;
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pss_opts.expected_salt_len = salt_len;
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}
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TEST_ASSERT( mbedtls_pk_verify_ext( pk_type, options, &pk,
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digest, hash_result, hash_len,
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result_str->x, mbedtls_pk_get_len( &pk ) ) == result );
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exit:
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_ECDSA_C */
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void pk_ec_test_vec( int type, int id, data_t * key, data_t * hash,
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data_t * sig, int ret )
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{
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mbedtls_pk_context pk;
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mbedtls_ecp_keypair *eckey;
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mbedtls_pk_init( &pk );
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TEST_ASSERT( mbedtls_pk_setup( &pk, mbedtls_pk_info_from_type( type ) ) == 0 );
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TEST_ASSERT( mbedtls_pk_can_do( &pk, MBEDTLS_PK_ECDSA ) );
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eckey = mbedtls_pk_ec( pk );
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TEST_ASSERT( mbedtls_ecp_group_load( &eckey->grp, id ) == 0 );
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TEST_ASSERT( mbedtls_ecp_point_read_binary( &eckey->grp, &eckey->Q,
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key->x, key->len ) == 0 );
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TEST_ASSERT( mbedtls_pk_verify( &pk, MBEDTLS_MD_NONE,
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hash->x, hash->len, sig->x, sig->len ) == ret );
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exit:
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_SHA256_C */
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void pk_sign_verify( int type, int sign_ret, int verify_ret )
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{
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mbedtls_pk_context pk;
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unsigned char hash[50], sig[5000];
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size_t sig_len;
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mbedtls_pk_init( &pk );
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memset( hash, 0x2a, sizeof hash );
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memset( sig, 0, sizeof sig );
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TEST_ASSERT( mbedtls_pk_setup( &pk, mbedtls_pk_info_from_type( type ) ) == 0 );
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TEST_ASSERT( pk_genkey( &pk, 0 ) == 0 );
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TEST_ASSERT( mbedtls_pk_sign( &pk, MBEDTLS_MD_SHA256, hash, sizeof hash,
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sig, &sig_len, rnd_std_rand, NULL ) == sign_ret );
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TEST_ASSERT( mbedtls_pk_verify( &pk, MBEDTLS_MD_SHA256,
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hash, sizeof hash, sig, sig_len ) == verify_ret );
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exit:
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
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void pk_rsa_encrypt_test_vec( data_t * message, int mod, int radix_N,
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char * input_N, int radix_E, char * input_E,
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data_t * result, int ret )
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{
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unsigned char output[1000];
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rnd_pseudo_info rnd_info;
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mbedtls_rsa_context *rsa;
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mbedtls_pk_context pk;
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size_t olen;
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memset( &rnd_info, 0, sizeof( rnd_pseudo_info ) );
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memset( output, 0, sizeof( output ) );
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mbedtls_pk_init( &pk );
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TEST_ASSERT( mbedtls_pk_setup( &pk, mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == 0 );
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rsa = mbedtls_pk_rsa( pk );
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rsa->len = mod / 8;
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TEST_ASSERT( mbedtls_mpi_read_string( &rsa->N, radix_N, input_N ) == 0 );
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TEST_ASSERT( mbedtls_mpi_read_string( &rsa->E, radix_E, input_E ) == 0 );
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TEST_ASSERT( mbedtls_pk_encrypt( &pk, message->x, message->len,
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output, &olen, sizeof( output ),
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rnd_pseudo_rand, &rnd_info ) == ret );
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TEST_ASSERT( olen == result->len );
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TEST_ASSERT( memcmp( output, result->x, olen ) == 0 );
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exit:
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
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void pk_rsa_decrypt_test_vec( data_t * cipher, int mod, int radix_P,
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char * input_P, int radix_Q, char * input_Q,
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int radix_N, char * input_N, int radix_E,
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char * input_E, data_t * clear, int ret )
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{
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unsigned char output[1000];
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rnd_pseudo_info rnd_info;
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mbedtls_mpi N, P, Q, E;
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mbedtls_rsa_context *rsa;
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mbedtls_pk_context pk;
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size_t olen;
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mbedtls_pk_init( &pk );
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mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P );
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mbedtls_mpi_init( &Q ); mbedtls_mpi_init( &E );
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memset( &rnd_info, 0, sizeof( rnd_pseudo_info ) );
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/* init pk-rsa context */
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TEST_ASSERT( mbedtls_pk_setup( &pk, mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == 0 );
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rsa = mbedtls_pk_rsa( pk );
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/* load public key */
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TEST_ASSERT( mbedtls_mpi_read_string( &N, radix_N, input_N ) == 0 );
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TEST_ASSERT( mbedtls_mpi_read_string( &E, radix_E, input_E ) == 0 );
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/* load private key */
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TEST_ASSERT( mbedtls_mpi_read_string( &P, radix_P, input_P ) == 0 );
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TEST_ASSERT( mbedtls_mpi_read_string( &Q, radix_Q, input_Q ) == 0 );
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TEST_ASSERT( mbedtls_rsa_import( rsa, &N, &P, &Q, NULL, &E ) == 0 );
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TEST_ASSERT( mbedtls_rsa_get_len( rsa ) == (size_t) ( mod / 8 ) );
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TEST_ASSERT( mbedtls_rsa_complete( rsa ) == 0 );
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/* decryption test */
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memset( output, 0, sizeof( output ) );
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olen = 0;
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TEST_ASSERT( mbedtls_pk_decrypt( &pk, cipher->x, cipher->len,
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output, &olen, sizeof( output ),
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rnd_pseudo_rand, &rnd_info ) == ret );
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if( ret == 0 )
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{
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TEST_ASSERT( olen == clear->len );
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TEST_ASSERT( memcmp( output, clear->x, olen ) == 0 );
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}
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exit:
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mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P );
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mbedtls_mpi_free( &Q ); mbedtls_mpi_free( &E );
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void pk_ec_nocrypt( int type )
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{
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mbedtls_pk_context pk;
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unsigned char output[100];
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unsigned char input[100];
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rnd_pseudo_info rnd_info;
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size_t olen = 0;
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int ret = MBEDTLS_ERR_PK_TYPE_MISMATCH;
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mbedtls_pk_init( &pk );
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memset( &rnd_info, 0, sizeof( rnd_pseudo_info ) );
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memset( output, 0, sizeof( output ) );
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memset( input, 0, sizeof( input ) );
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TEST_ASSERT( mbedtls_pk_setup( &pk, mbedtls_pk_info_from_type( type ) ) == 0 );
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TEST_ASSERT( mbedtls_pk_encrypt( &pk, input, sizeof( input ),
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output, &olen, sizeof( output ),
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rnd_pseudo_rand, &rnd_info ) == ret );
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TEST_ASSERT( mbedtls_pk_decrypt( &pk, input, sizeof( input ),
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output, &olen, sizeof( output ),
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rnd_pseudo_rand, &rnd_info ) == ret );
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exit:
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_RSA_C */
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void pk_rsa_overflow( )
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{
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mbedtls_pk_context pk;
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size_t hash_len = SIZE_MAX, sig_len = SIZE_MAX;
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unsigned char hash[50], sig[100];
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if( SIZE_MAX <= UINT_MAX )
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return;
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memset( hash, 0x2a, sizeof hash );
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memset( sig, 0, sizeof sig );
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mbedtls_pk_init( &pk );
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TEST_ASSERT( mbedtls_pk_setup( &pk,
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mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == 0 );
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#if defined(MBEDTLS_PKCS1_V21)
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TEST_ASSERT( mbedtls_pk_verify_ext( MBEDTLS_PK_RSASSA_PSS, NULL, &pk,
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MBEDTLS_MD_NONE, hash, hash_len, sig, sig_len ) ==
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MBEDTLS_ERR_PK_BAD_INPUT_DATA );
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#endif /* MBEDTLS_PKCS1_V21 */
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TEST_ASSERT( mbedtls_pk_verify( &pk, MBEDTLS_MD_NONE, hash, hash_len,
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sig, sig_len ) == MBEDTLS_ERR_PK_BAD_INPUT_DATA );
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TEST_ASSERT( mbedtls_pk_sign( &pk, MBEDTLS_MD_NONE, hash, hash_len, sig, &sig_len,
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rnd_std_rand, NULL ) == MBEDTLS_ERR_PK_BAD_INPUT_DATA );
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exit:
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mbedtls_pk_free( &pk );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_RSA_C:MBEDTLS_PK_RSA_ALT_SUPPORT */
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void pk_rsa_alt( )
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{
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/*
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* An rsa_alt context can only do private operations (decrypt, sign).
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* Test it against the public operations (encrypt, verify) of a
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* corresponding rsa context.
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*/
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mbedtls_rsa_context raw;
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mbedtls_pk_context rsa, alt;
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mbedtls_pk_debug_item dbg_items[10];
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unsigned char hash[50], sig[1000];
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unsigned char msg[50], ciph[1000], test[1000];
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size_t sig_len, ciph_len, test_len;
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int ret = MBEDTLS_ERR_PK_TYPE_MISMATCH;
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mbedtls_rsa_init( &raw, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_NONE );
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mbedtls_pk_init( &rsa ); mbedtls_pk_init( &alt );
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memset( hash, 0x2a, sizeof hash );
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memset( sig, 0, sizeof sig );
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memset( msg, 0x2a, sizeof msg );
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memset( ciph, 0, sizeof ciph );
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memset( test, 0, sizeof test );
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/* Initiliaze PK RSA context with random key */
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TEST_ASSERT( mbedtls_pk_setup( &rsa,
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mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == 0 );
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TEST_ASSERT( pk_genkey( &rsa, RSA_KEY_SIZE ) == 0 );
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/* Extract key to the raw rsa context */
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TEST_ASSERT( mbedtls_rsa_copy( &raw, mbedtls_pk_rsa( rsa ) ) == 0 );
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/* Initialize PK RSA_ALT context */
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TEST_ASSERT( mbedtls_pk_setup_rsa_alt( &alt, (void *) &raw,
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mbedtls_rsa_decrypt_func, mbedtls_rsa_sign_func, mbedtls_rsa_key_len_func ) == 0 );
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/* Test administrative functions */
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TEST_ASSERT( mbedtls_pk_can_do( &alt, MBEDTLS_PK_RSA ) );
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TEST_ASSERT( mbedtls_pk_get_bitlen( &alt ) == RSA_KEY_SIZE );
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TEST_ASSERT( mbedtls_pk_get_len( &alt ) == RSA_KEY_LEN );
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TEST_ASSERT( mbedtls_pk_get_type( &alt ) == MBEDTLS_PK_RSA_ALT );
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TEST_ASSERT( strcmp( mbedtls_pk_get_name( &alt ), "RSA-alt" ) == 0 );
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/* Test signature */
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#if SIZE_MAX > UINT_MAX
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TEST_ASSERT( mbedtls_pk_sign( &alt, MBEDTLS_MD_NONE, hash, SIZE_MAX,
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sig, &sig_len, rnd_std_rand, NULL ) ==
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MBEDTLS_ERR_PK_BAD_INPUT_DATA );
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#endif /* SIZE_MAX > UINT_MAX */
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TEST_ASSERT( mbedtls_pk_sign( &alt, MBEDTLS_MD_NONE, hash, sizeof hash,
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sig, &sig_len, rnd_std_rand, NULL ) == 0 );
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TEST_ASSERT( sig_len == RSA_KEY_LEN );
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TEST_ASSERT( mbedtls_pk_verify( &rsa, MBEDTLS_MD_NONE,
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hash, sizeof hash, sig, sig_len ) == 0 );
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/* Test decrypt */
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TEST_ASSERT( mbedtls_pk_encrypt( &rsa, msg, sizeof msg,
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ciph, &ciph_len, sizeof ciph,
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rnd_std_rand, NULL ) == 0 );
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TEST_ASSERT( mbedtls_pk_decrypt( &alt, ciph, ciph_len,
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test, &test_len, sizeof test,
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rnd_std_rand, NULL ) == 0 );
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TEST_ASSERT( test_len == sizeof msg );
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TEST_ASSERT( memcmp( test, msg, test_len ) == 0 );
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|
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/* Test forbidden operations */
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TEST_ASSERT( mbedtls_pk_encrypt( &alt, msg, sizeof msg,
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ciph, &ciph_len, sizeof ciph,
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rnd_std_rand, NULL ) == ret );
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TEST_ASSERT( mbedtls_pk_verify( &alt, MBEDTLS_MD_NONE,
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hash, sizeof hash, sig, sig_len ) == ret );
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TEST_ASSERT( mbedtls_pk_debug( &alt, dbg_items ) == ret );
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exit:
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mbedtls_rsa_free( &raw );
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mbedtls_pk_free( &rsa ); mbedtls_pk_free( &alt );
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}
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/* END_CASE */
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