exchange_test.c File Reference

Key exchange self-tests. More...

#include <stdlib.h>
#include <string.h>
#include <ipxe/crypto.h>
#include "exchange_test.h"

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
void	exchange_okx (struct exchange_test *test, const char *file, unsigned int line)
	Report a key exchange test result.

Detailed Description

Key exchange self-tests.

Definition in file exchange_test.c.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

exchange_okx()

void exchange_okx	(	struct exchange_test *	test,
		const char *	file,
		unsigned int	line )

Report a key exchange test result.

Parameters

test	Key exchange test
file	Test code file
line	Test code line

Definition at line 47 of file exchange_test.c.

                                        {
        struct exchange_algorithm *exchange = test->exchange;
        struct {
                uint8_t public[ exchange->pubsize ];
                uint8_t shared[ exchange->sharedsize ];
        } *actual;
        int rc;
 
        /* Sanity checks */
        okx ( test->private_len == exchange->privsize, file, line );
        okx ( test->partner_len == exchange->pubsize, file, line );
        okx ( test->public_len == exchange->pubsize, file, line );
        okx ( ( ( test->shared_len == 0 ) ||
                ( test->shared_len == exchange->sharedsize ) ), file, line );
 
        /* Allocate result buffer */
        actual = malloc ( sizeof ( *actual ) );
        okx ( actual != NULL, file, line );
 
        /* Verify calculation of public key */
        DBGC ( test, "KEX %s private key:\n", exchange->name );
        DBGC_HDA ( test, 0, test->private, exchange->privsize );
        okx ( exchange_share ( exchange, test->private, actual->public ) == 0,
              file, line );
        DBGC ( test, "KEX %s public key:\n", exchange->name );
        DBGC_HDA ( test, 0, actual->public, exchange->pubsize );
        okx ( memcmp ( actual->public, test->public, exchange->pubsize ) == 0,
              file, line );
 
        /* Verify calculation of shared secret */
        DBGC ( test, "KEX %s partner key:\n", exchange->name );
        DBGC_HDA ( test, 0, test->partner, exchange->pubsize );
        rc = exchange_agree ( exchange, test->private, test->partner,
                              actual->shared );
        if ( test->shared_len ) {
                /* Verify successful calculation */
                okx ( rc == 0, file, line );
                DBGC ( test, "KEX %s shared secret:\n", exchange->name );
                DBGC_HDA ( test, 0, actual->shared, exchange->sharedsize );
                okx ( memcmp ( actual->shared, test->shared,
                               exchange->sharedsize ) == 0, file, line );
        } else {
                /* Verify failure */
                okx ( rc != 0, file, line );
        }
 
        /* Free result buffer */
        free ( actual );
}

References DBGC, DBGC_HDA, exchange_agree(), exchange_share(), free, malloc(), memcmp(), exchange_algorithm::name, NULL, okx, exchange_algorithm::privsize, exchange_algorithm::pubsize, rc, exchange_algorithm::sharedsize, and test.