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/* BEGIN_HEADER */
#include <stdint.h>
#include "psa/crypto.h"
typedef enum
{
ERR_NONE = 0,
/* errors forced internally in the code */
ERR_INJECT_UNINITIALIZED_ACCESS,
ERR_INJECT_DUPLICATE_SETUP,
ERR_INJECT_INVALID_USER,
ERR_INJECT_INVALID_PEER,
ERR_INJECT_SET_USER,
ERR_INJECT_SET_PEER,
ERR_INJECT_EMPTY_IO_BUFFER,
ERR_INJECT_UNKNOWN_STEP,
ERR_INJECT_INVALID_FIRST_STEP,
ERR_INJECT_WRONG_BUFFER_SIZE,
ERR_INJECT_VALID_OPERATION_AFTER_FAILURE,
ERR_INJECT_ANTICIPATE_KEY_DERIVATION_1,
ERR_INJECT_ANTICIPATE_KEY_DERIVATION_2,
ERR_INJECT_ROUND1_CLIENT_KEY_SHARE_PART1,
ERR_INJECT_ROUND1_CLIENT_ZK_PUBLIC_PART1,
ERR_INJECT_ROUND1_CLIENT_ZK_PROOF_PART1,
ERR_INJECT_ROUND1_CLIENT_KEY_SHARE_PART2,
ERR_INJECT_ROUND1_CLIENT_ZK_PUBLIC_PART2,
ERR_INJECT_ROUND1_CLIENT_ZK_PROOF_PART2,
ERR_INJECT_ROUND2_CLIENT_KEY_SHARE,
ERR_INJECT_ROUND2_CLIENT_ZK_PUBLIC,
ERR_INJECT_ROUND2_CLIENT_ZK_PROOF,
ERR_INJECT_ROUND1_SERVER_KEY_SHARE_PART1,
ERR_INJECT_ROUND1_SERVER_ZK_PUBLIC_PART1,
ERR_INJECT_ROUND1_SERVER_ZK_PROOF_PART1,
ERR_INJECT_ROUND1_SERVER_KEY_SHARE_PART2,
ERR_INJECT_ROUND1_SERVER_ZK_PUBLIC_PART2,
ERR_INJECT_ROUND1_SERVER_ZK_PROOF_PART2,
ERR_INJECT_ROUND2_SERVER_KEY_SHARE,
ERR_INJECT_ROUND2_SERVER_ZK_PUBLIC,
ERR_INJECT_ROUND2_SERVER_ZK_PROOF,
/* erros issued from the .data file */
ERR_IN_SETUP,
ERR_IN_SET_ROLE,
ERR_IN_SET_PASSWORD_KEY,
ERR_IN_INPUT,
ERR_IN_OUTPUT,
} ecjpake_error_stage_t;
typedef enum
{
PAKE_ROUND_ONE,
PAKE_ROUND_TWO
} pake_round_t;
/*
* Inject an error on the specified buffer ONLY it this is the correct stage.
* Offset 7 is arbitrary, but chosen because it's "in the middle" of the part
* we're corrupting.
*/
#define DO_ROUND_CONDITIONAL_INJECT( this_stage, buf ) \
if ( this_stage == err_stage ) \
{ \
*( buf + 7) ^= 1; \
}
#define DO_ROUND_UPDATE_OFFSETS( main_buf_offset, step_offset, step_size ) \
{ \
step_offset = main_buf_offset; \
main_buf_offset += step_size; \
}
#define DO_ROUND_CHECK_FAILURE( ) \
if( err_stage != ERR_NONE && status != PSA_SUCCESS ) \
{ \
TEST_EQUAL( status, expected_error_arg ); \
break; \
} \
else \
{ \
TEST_EQUAL( status, PSA_SUCCESS ); \
}
#if defined(PSA_WANT_ALG_JPAKE)
static void ecjpake_do_round( psa_algorithm_t alg, unsigned int primitive,
psa_pake_operation_t *server,
psa_pake_operation_t *client,
int client_input_first,
pake_round_t round,
ecjpake_error_stage_t err_stage,
int expected_error_arg )
{
unsigned char *buffer0 = NULL, *buffer1 = NULL;
size_t buffer_length = (
PSA_PAKE_OUTPUT_SIZE(alg, primitive, PSA_PAKE_STEP_KEY_SHARE) +
PSA_PAKE_OUTPUT_SIZE(alg, primitive, PSA_PAKE_STEP_ZK_PUBLIC) +
PSA_PAKE_OUTPUT_SIZE(alg, primitive, PSA_PAKE_STEP_ZK_PROOF)) * 2;
/* The output should be exactly this size according to the spec */
const size_t expected_size_key_share =
PSA_PAKE_OUTPUT_SIZE(alg, primitive, PSA_PAKE_STEP_KEY_SHARE);
/* The output should be exactly this size according to the spec */
const size_t expected_size_zk_public =
PSA_PAKE_OUTPUT_SIZE(alg, primitive, PSA_PAKE_STEP_ZK_PUBLIC);
/* The output can be smaller: the spec allows stripping leading zeroes */
const size_t max_expected_size_zk_proof =
PSA_PAKE_OUTPUT_SIZE(alg, primitive, PSA_PAKE_STEP_ZK_PROOF);
size_t buffer0_off = 0;
size_t buffer1_off = 0;
size_t s_g1_len, s_g2_len, s_a_len;
size_t s_g1_off, s_g2_off, s_a_off;
size_t s_x1_pk_len, s_x2_pk_len, s_x2s_pk_len;
size_t s_x1_pk_off, s_x2_pk_off, s_x2s_pk_off;
size_t s_x1_pr_len, s_x2_pr_len, s_x2s_pr_len;
size_t s_x1_pr_off, s_x2_pr_off, s_x2s_pr_off;
size_t c_g1_len, c_g2_len, c_a_len;
size_t c_g1_off, c_g2_off, c_a_off;
size_t c_x1_pk_len, c_x2_pk_len, c_x2s_pk_len;
size_t c_x1_pk_off, c_x2_pk_off, c_x2s_pk_off;
size_t c_x1_pr_len, c_x2_pr_len, c_x2s_pr_len;
size_t c_x1_pr_off, c_x2_pr_off, c_x2s_pr_off;
psa_status_t status;
ASSERT_ALLOC( buffer0, buffer_length );
ASSERT_ALLOC( buffer1, buffer_length );
switch( round )
{
case PAKE_ROUND_ONE:
/* Server first round Output */
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + buffer0_off,
512 - buffer0_off, &s_g1_len ) );
TEST_EQUAL( s_g1_len, expected_size_key_share );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_SERVER_KEY_SHARE_PART1,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_g1_off, s_g1_len );
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + buffer0_off,
512 - buffer0_off, &s_x1_pk_len ) );
TEST_EQUAL( s_x1_pk_len, expected_size_zk_public );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_SERVER_ZK_PUBLIC_PART1,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_x1_pk_off, s_x1_pk_len );
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + buffer0_off,
512 - buffer0_off, &s_x1_pr_len ) );
TEST_LE_U( s_x1_pr_len, max_expected_size_zk_proof );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_SERVER_ZK_PROOF_PART1,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_x1_pr_off, s_x1_pr_len );
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + buffer0_off,
512 - buffer0_off, &s_g2_len ) );
TEST_EQUAL( s_g2_len, expected_size_key_share );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_SERVER_KEY_SHARE_PART2,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_g2_off, s_g2_len );
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + buffer0_off,
512 - buffer0_off, &s_x2_pk_len ) );
TEST_EQUAL( s_x2_pk_len, expected_size_zk_public );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_SERVER_ZK_PUBLIC_PART2,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_x2_pk_off, s_x2_pk_len );
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + buffer0_off,
512 - buffer0_off, &s_x2_pr_len ) );
TEST_LE_U( s_x2_pr_len, max_expected_size_zk_proof );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_SERVER_ZK_PROOF_PART2,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_x2_pr_off, s_x2_pr_len );
/*
* When injecting errors in inputs, the implementation is
* free to detect it right away of with a delay.
* This permits delaying the error until the end of the input
* sequence, if no error appears then, this will be treated
* as an error.
*/
if( client_input_first == 1 )
{
/* Client first round Input */
status = psa_pake_input( client, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + s_g1_off, s_g1_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + s_x1_pk_off,
s_x1_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + s_x1_pr_off,
s_x1_pr_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + s_g2_off,
s_g2_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + s_x2_pk_off,
s_x2_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + s_x2_pr_off,
s_x2_pr_len );
DO_ROUND_CHECK_FAILURE( );
/* Error didn't trigger, make test fail */
if( ( err_stage >= ERR_INJECT_ROUND1_SERVER_KEY_SHARE_PART1 ) &&
( err_stage <= ERR_INJECT_ROUND1_SERVER_ZK_PROOF_PART2 ) )
{
TEST_ASSERT( ! "One of the last psa_pake_input() calls should have returned the expected error." );
}
}
/* Client first round Output */
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_KEY_SHARE,
buffer1 + buffer1_off,
512 - buffer1_off, &c_g1_len ) );
TEST_EQUAL( c_g1_len, expected_size_key_share );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_CLIENT_KEY_SHARE_PART1,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_g1_off, c_g1_len );
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer1 + buffer1_off,
512 - buffer1_off, &c_x1_pk_len ) );
TEST_EQUAL( c_x1_pk_len, expected_size_zk_public );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_CLIENT_ZK_PUBLIC_PART1,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_x1_pk_off, c_x1_pk_len );
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_ZK_PROOF,
buffer1 + buffer1_off,
512 - buffer1_off, &c_x1_pr_len ) );
TEST_LE_U( c_x1_pr_len, max_expected_size_zk_proof );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_CLIENT_ZK_PROOF_PART1,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_x1_pr_off, c_x1_pr_len );
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_KEY_SHARE,
buffer1 + buffer1_off,
512 - buffer1_off, &c_g2_len ) );
TEST_EQUAL( c_g2_len, expected_size_key_share );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_CLIENT_KEY_SHARE_PART2,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_g2_off, c_g2_len );
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer1 + buffer1_off,
512 - buffer1_off, &c_x2_pk_len ) );
TEST_EQUAL( c_x2_pk_len, expected_size_zk_public );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_CLIENT_ZK_PUBLIC_PART2,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_x2_pk_off, c_x2_pk_len );
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_ZK_PROOF,
buffer1 + buffer1_off,
512 - buffer1_off, &c_x2_pr_len ) );
TEST_LE_U( c_x2_pr_len, max_expected_size_zk_proof );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND1_CLIENT_ZK_PROOF_PART2,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_x2_pr_off, buffer1_off );
if( client_input_first == 0 )
{
/* Client first round Input */
status = psa_pake_input( client, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + s_g1_off, s_g1_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + s_x1_pk_off,
s_x1_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + s_x1_pr_off,
s_x1_pr_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + s_g2_off,
s_g2_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + s_x2_pk_off,
s_x2_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + s_x2_pr_off,
s_x2_pr_len );
DO_ROUND_CHECK_FAILURE( );
/* Error didn't trigger, make test fail */
if( ( err_stage >= ERR_INJECT_ROUND1_SERVER_KEY_SHARE_PART1 ) &&
( err_stage <= ERR_INJECT_ROUND1_SERVER_ZK_PROOF_PART2 ) )
{
TEST_ASSERT( ! "One of the last psa_pake_input() calls should have returned the expected error." );
}
}
/* Server first round Input */
status = psa_pake_input( server, PSA_PAKE_STEP_KEY_SHARE,
buffer1 + c_g1_off, c_g1_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( server, PSA_PAKE_STEP_ZK_PUBLIC,
buffer1 + c_x1_pk_off, c_x1_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( server, PSA_PAKE_STEP_ZK_PROOF,
buffer1 + c_x1_pr_off, c_x1_pr_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( server, PSA_PAKE_STEP_KEY_SHARE,
buffer1 + c_g2_off, c_g2_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( server, PSA_PAKE_STEP_ZK_PUBLIC,
buffer1 + c_x2_pk_off, c_x2_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( server, PSA_PAKE_STEP_ZK_PROOF,
buffer1 + c_x2_pr_off, c_x2_pr_len );
DO_ROUND_CHECK_FAILURE( );
/* Error didn't trigger, make test fail */
if( ( err_stage >= ERR_INJECT_ROUND1_CLIENT_KEY_SHARE_PART1 ) &&
( err_stage <= ERR_INJECT_ROUND1_CLIENT_ZK_PROOF_PART2 ) )
{
TEST_ASSERT( ! "One of the last psa_pake_input() calls should have returned the expected error." );
}
break;
case PAKE_ROUND_TWO:
/* Server second round Output */
buffer0_off = 0;
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + buffer0_off,
512 - buffer0_off, &s_a_len ) );
TEST_EQUAL( s_a_len, expected_size_key_share );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND2_SERVER_KEY_SHARE,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_a_off, s_a_len );
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + buffer0_off,
512 - buffer0_off, &s_x2s_pk_len ) );
TEST_EQUAL( s_x2s_pk_len, expected_size_zk_public );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND2_SERVER_ZK_PUBLIC,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_x2s_pk_off, s_x2s_pk_len );
PSA_ASSERT( psa_pake_output( server, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + buffer0_off,
512 - buffer0_off, &s_x2s_pr_len ) );
TEST_LE_U( s_x2s_pr_len, max_expected_size_zk_proof );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND2_SERVER_ZK_PROOF,
buffer0 + buffer0_off );
DO_ROUND_UPDATE_OFFSETS( buffer0_off, s_x2s_pr_off, s_x2s_pr_len );
if( client_input_first == 1 )
{
/* Client second round Input */
status = psa_pake_input( client, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + s_a_off, s_a_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + s_x2s_pk_off,
s_x2s_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + s_x2s_pr_off,
s_x2s_pr_len );
DO_ROUND_CHECK_FAILURE( );
/* Error didn't trigger, make test fail */
if( ( err_stage >= ERR_INJECT_ROUND2_SERVER_KEY_SHARE ) &&
( err_stage <= ERR_INJECT_ROUND2_SERVER_ZK_PROOF ) )
{
TEST_ASSERT( ! "One of the last psa_pake_input() calls should have returned the expected error." );
}
}
/* Client second round Output */
buffer1_off = 0;
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_KEY_SHARE,
buffer1 + buffer1_off,
512 - buffer1_off, &c_a_len ) );
TEST_EQUAL( c_a_len, expected_size_key_share );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND2_CLIENT_KEY_SHARE,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_a_off, c_a_len );
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer1 + buffer1_off,
512 - buffer1_off, &c_x2s_pk_len ) );
TEST_EQUAL( c_x2s_pk_len, expected_size_zk_public );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND2_CLIENT_ZK_PUBLIC,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_x2s_pk_off, c_x2s_pk_len );
PSA_ASSERT( psa_pake_output( client, PSA_PAKE_STEP_ZK_PROOF,
buffer1 + buffer1_off,
512 - buffer1_off, &c_x2s_pr_len ) );
TEST_LE_U( c_x2s_pr_len, max_expected_size_zk_proof );
DO_ROUND_CONDITIONAL_INJECT(
ERR_INJECT_ROUND2_CLIENT_ZK_PROOF,
buffer1 + buffer1_off );
DO_ROUND_UPDATE_OFFSETS( buffer1_off, c_x2s_pr_off, c_x2s_pr_len );
if( client_input_first == 0 )
{
/* Client second round Input */
status = psa_pake_input( client, PSA_PAKE_STEP_KEY_SHARE,
buffer0 + s_a_off, s_a_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PUBLIC,
buffer0 + s_x2s_pk_off,
s_x2s_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( client, PSA_PAKE_STEP_ZK_PROOF,
buffer0 + s_x2s_pr_off,
s_x2s_pr_len );
DO_ROUND_CHECK_FAILURE( );
/* Error didn't trigger, make test fail */
if( ( err_stage >= ERR_INJECT_ROUND2_SERVER_KEY_SHARE ) &&
( err_stage <= ERR_INJECT_ROUND2_SERVER_ZK_PROOF ) )
{
TEST_ASSERT( ! "One of the last psa_pake_input() calls should have returned the expected error." );
}
}
/* Server second round Input */
status = psa_pake_input( server, PSA_PAKE_STEP_KEY_SHARE,
buffer1 + c_a_off, c_a_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( server, PSA_PAKE_STEP_ZK_PUBLIC,
buffer1 + c_x2s_pk_off, c_x2s_pk_len );
DO_ROUND_CHECK_FAILURE( );
status = psa_pake_input( server, PSA_PAKE_STEP_ZK_PROOF,
buffer1 + c_x2s_pr_off, c_x2s_pr_len );
DO_ROUND_CHECK_FAILURE( );
/* Error didn't trigger, make test fail */
if( ( err_stage >= ERR_INJECT_ROUND2_CLIENT_KEY_SHARE ) &&
( err_stage <= ERR_INJECT_ROUND2_CLIENT_ZK_PROOF ) )
{
TEST_ASSERT( ! "One of the last psa_pake_input() calls should have returned the expected error." );
}
break;
}
exit:
mbedtls_free( buffer0 );
mbedtls_free( buffer1 );
}
#endif /* PSA_WANT_ALG_JPAKE */
/*
* This check is used for functions that might either succeed or fail depending
* on the parameters that are passed in from the *.data file:
* - in case of success following functions depend on the current one
* - in case of failure the test is always terminated. There are two options
* here
* - terminated successfully if this exact error was expected at this stage
* - terminated with failure otherwise (either no error was expected at this
* stage or a different error code was expected)
*/
#define SETUP_ALWAYS_CHECK_STEP( test_function, this_check_err_stage ) \
status = test_function; \
if( err_stage != this_check_err_stage ) \
{ \
PSA_ASSERT( status ); \
} \
else \
{ \
TEST_EQUAL( status, expected_error ); \
goto exit; \
}
/*
* This check is used for failures that are injected at code level. There's only
* 1 input parameter that is relevant in this case and it's the stage at which
* the error should be injected.
* The check is conditional in this case because, once the error is triggered,
* the pake's context structure is compromised and the setup function cannot
* proceed further. As a consequence the test is terminated.
* The test succeeds if the returned error is exactly the expected one,
* otherwise it fails.
*/
#define SETUP_CONDITIONAL_CHECK_STEP( test_function, this_check_err_stage ) \
if( err_stage == this_check_err_stage ) \
{ \
TEST_EQUAL( test_function, expected_error ); \
goto exit; \
}
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PSA_CRYPTO_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE depends_on:PSA_WANT_ALG_JPAKE */
void ecjpake_setup( int alg_arg, int key_type_pw_arg, int key_usage_pw_arg,
int primitive_arg, int hash_arg, int role_arg,
int test_input,
int err_stage_arg,
int expected_error_arg)
{
psa_pake_cipher_suite_t cipher_suite = psa_pake_cipher_suite_init();
psa_pake_operation_t operation = psa_pake_operation_init();
psa_algorithm_t alg = alg_arg;
psa_pake_primitive_t primitive = primitive_arg;
psa_key_type_t key_type_pw = key_type_pw_arg;
psa_key_usage_t key_usage_pw = key_usage_pw_arg;
psa_algorithm_t hash_alg = hash_arg;
psa_pake_role_t role = role_arg;
mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
ecjpake_error_stage_t err_stage = err_stage_arg;
psa_status_t expected_error = expected_error_arg;
psa_status_t status;
unsigned char *output_buffer = NULL;
size_t output_len = 0;
const uint8_t unsupp_id[] = "abcd";
const uint8_t password[] = "abcd";
psa_key_derivation_operation_t key_derivation =
PSA_KEY_DERIVATION_OPERATION_INIT;
PSA_INIT( );
size_t buf_size = PSA_PAKE_OUTPUT_SIZE( alg, primitive_arg,
PSA_PAKE_STEP_KEY_SHARE );
ASSERT_ALLOC( output_buffer, buf_size );
psa_set_key_usage_flags( &attributes, key_usage_pw );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_type( &attributes, key_type_pw );
PSA_ASSERT( psa_import_key( &attributes, password, sizeof( password ),
&key ) );
psa_pake_cs_set_algorithm( &cipher_suite, alg );
psa_pake_cs_set_primitive( &cipher_suite, primitive );
psa_pake_cs_set_hash( &cipher_suite, hash_alg );
PSA_ASSERT( psa_pake_abort( &operation ) );
if ( err_stage == ERR_INJECT_UNINITIALIZED_ACCESS )
{
TEST_EQUAL( psa_pake_set_user( &operation, NULL, 0 ),
expected_error );
TEST_EQUAL( psa_pake_set_peer( &operation, NULL, 0 ),
expected_error );
TEST_EQUAL( psa_pake_set_password_key( &operation, key ),
expected_error );
TEST_EQUAL( psa_pake_set_role( &operation, role ),
expected_error );
TEST_EQUAL( psa_pake_output( &operation, PSA_PAKE_STEP_KEY_SHARE,
NULL, 0, NULL ),
expected_error );
TEST_EQUAL( psa_pake_input( &operation, PSA_PAKE_STEP_KEY_SHARE,
NULL, 0 ),
expected_error );
TEST_EQUAL( psa_pake_get_implicit_key( &operation, &key_derivation ),
expected_error );
goto exit;
}
SETUP_ALWAYS_CHECK_STEP( psa_pake_setup( &operation, &cipher_suite ),
ERR_IN_SETUP );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_setup( &operation, &cipher_suite ),
ERR_INJECT_DUPLICATE_SETUP);
SETUP_ALWAYS_CHECK_STEP( psa_pake_set_role( &operation, role),
ERR_IN_SET_ROLE );
SETUP_ALWAYS_CHECK_STEP( psa_pake_set_password_key( &operation, key ),
ERR_IN_SET_PASSWORD_KEY );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_set_user( &operation, NULL, 0 ),
ERR_INJECT_INVALID_USER );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_set_peer( &operation, NULL, 0 ),
ERR_INJECT_INVALID_PEER );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_set_user( &operation, unsupp_id, 4 ),
ERR_INJECT_SET_USER );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_set_peer( &operation, unsupp_id, 4 ),
ERR_INJECT_SET_PEER );
const size_t size_key_share = PSA_PAKE_INPUT_SIZE( alg, primitive,
PSA_PAKE_STEP_KEY_SHARE );
const size_t size_zk_public = PSA_PAKE_INPUT_SIZE( alg, primitive,
PSA_PAKE_STEP_ZK_PUBLIC );
const size_t size_zk_proof = PSA_PAKE_INPUT_SIZE( alg, primitive,
PSA_PAKE_STEP_ZK_PROOF );
if ( test_input )
{
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_input( &operation,
PSA_PAKE_STEP_ZK_PROOF, NULL, 0 ),
ERR_INJECT_EMPTY_IO_BUFFER );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_input( &operation,
PSA_PAKE_STEP_ZK_PROOF + 10,
output_buffer, size_zk_proof ),
ERR_INJECT_UNKNOWN_STEP );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_input( &operation,
PSA_PAKE_STEP_ZK_PROOF,
output_buffer, size_zk_proof ),
ERR_INJECT_INVALID_FIRST_STEP )
SETUP_ALWAYS_CHECK_STEP( psa_pake_input( &operation,
PSA_PAKE_STEP_KEY_SHARE,
output_buffer, size_key_share ),
ERR_IN_INPUT );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_input( &operation,
PSA_PAKE_STEP_ZK_PUBLIC,
output_buffer, size_zk_public + 1 ),
ERR_INJECT_WRONG_BUFFER_SIZE );
SETUP_CONDITIONAL_CHECK_STEP(
( psa_pake_input( &operation, PSA_PAKE_STEP_ZK_PUBLIC,
output_buffer, size_zk_public + 1 ),
psa_pake_input( &operation, PSA_PAKE_STEP_ZK_PUBLIC,
output_buffer, size_zk_public ) ),
ERR_INJECT_VALID_OPERATION_AFTER_FAILURE );
} else {
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_output( &operation,
PSA_PAKE_STEP_ZK_PROOF,
NULL, 0, NULL ),
ERR_INJECT_EMPTY_IO_BUFFER );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_output( &operation,
PSA_PAKE_STEP_ZK_PROOF + 10,
output_buffer, buf_size, &output_len ),
ERR_INJECT_UNKNOWN_STEP );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_output( &operation,
PSA_PAKE_STEP_ZK_PROOF,
output_buffer, buf_size, &output_len ),
ERR_INJECT_INVALID_FIRST_STEP );
SETUP_ALWAYS_CHECK_STEP( psa_pake_output( &operation,
PSA_PAKE_STEP_KEY_SHARE,
output_buffer, buf_size, &output_len ),
ERR_IN_OUTPUT );
TEST_ASSERT( output_len > 0 );
SETUP_CONDITIONAL_CHECK_STEP( psa_pake_output( &operation,
PSA_PAKE_STEP_ZK_PUBLIC,
output_buffer, size_zk_public - 1,
&output_len ),
ERR_INJECT_WRONG_BUFFER_SIZE );
SETUP_CONDITIONAL_CHECK_STEP(
( psa_pake_output( &operation, PSA_PAKE_STEP_ZK_PUBLIC,
output_buffer, size_zk_public - 1, &output_len ),
psa_pake_output( &operation, PSA_PAKE_STEP_ZK_PUBLIC,
output_buffer, buf_size, &output_len ) ),
ERR_INJECT_VALID_OPERATION_AFTER_FAILURE );
}
exit:
PSA_ASSERT( psa_destroy_key( key ) );
PSA_ASSERT( psa_pake_abort( &operation ) );
mbedtls_free( output_buffer );
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE depends_on:PSA_WANT_ALG_JPAKE */
void ecjpake_rounds_inject( int alg_arg, int primitive_arg, int hash_arg,
int client_input_first,
data_t *pw_data,
int err_stage_arg,
int expected_error_arg )
{
psa_pake_cipher_suite_t cipher_suite = psa_pake_cipher_suite_init();
psa_pake_operation_t server = psa_pake_operation_init();
psa_pake_operation_t client = psa_pake_operation_init();
psa_algorithm_t alg = alg_arg;
psa_algorithm_t hash_alg = hash_arg;
mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
ecjpake_error_stage_t err_stage = err_stage_arg;
PSA_INIT( );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_DERIVE );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_type( &attributes, PSA_KEY_TYPE_PASSWORD );
PSA_ASSERT( psa_import_key( &attributes, pw_data->x, pw_data->len,
&key ) );
psa_pake_cs_set_algorithm( &cipher_suite, alg );
psa_pake_cs_set_primitive( &cipher_suite, primitive_arg );
psa_pake_cs_set_hash( &cipher_suite, hash_alg );
PSA_ASSERT( psa_pake_setup( &server, &cipher_suite ) );
PSA_ASSERT( psa_pake_setup( &client, &cipher_suite ) );
PSA_ASSERT( psa_pake_set_role( &server, PSA_PAKE_ROLE_SERVER ) );
PSA_ASSERT( psa_pake_set_role( &client, PSA_PAKE_ROLE_CLIENT ) );
PSA_ASSERT( psa_pake_set_password_key( &server, key ) );
PSA_ASSERT( psa_pake_set_password_key( &client, key ) );
ecjpake_do_round( alg, primitive_arg, &server, &client,
client_input_first, PAKE_ROUND_ONE,
err_stage, expected_error_arg );
if( err_stage != ERR_NONE )
goto exit;
ecjpake_do_round( alg, primitive_arg, &server, &client,
client_input_first, PAKE_ROUND_TWO,
err_stage, expected_error_arg );
exit:
psa_destroy_key( key );
psa_pake_abort( &server );
psa_pake_abort( &client );
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE depends_on:PSA_WANT_ALG_JPAKE */
void ecjpake_rounds( int alg_arg, int primitive_arg, int hash_arg,
int derive_alg_arg, data_t *pw_data,
int client_input_first, int destroy_key,
int err_stage_arg )
{
psa_pake_cipher_suite_t cipher_suite = psa_pake_cipher_suite_init();
psa_pake_operation_t server = psa_pake_operation_init();
psa_pake_operation_t client = psa_pake_operation_init();
psa_algorithm_t alg = alg_arg;
psa_algorithm_t hash_alg = hash_arg;
psa_algorithm_t derive_alg = derive_alg_arg;
mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_derivation_operation_t server_derive =
PSA_KEY_DERIVATION_OPERATION_INIT;
psa_key_derivation_operation_t client_derive =
PSA_KEY_DERIVATION_OPERATION_INIT;
ecjpake_error_stage_t err_stage = err_stage_arg;
PSA_INIT( );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_DERIVE );
psa_set_key_algorithm( &attributes, alg );
psa_set_key_type( &attributes, PSA_KEY_TYPE_PASSWORD );
PSA_ASSERT( psa_import_key( &attributes, pw_data->x, pw_data->len,
&key ) );
psa_pake_cs_set_algorithm( &cipher_suite, alg );
psa_pake_cs_set_primitive( &cipher_suite, primitive_arg );
psa_pake_cs_set_hash( &cipher_suite, hash_alg );
/* Get shared key */
PSA_ASSERT( psa_key_derivation_setup( &server_derive, derive_alg ) );
PSA_ASSERT( psa_key_derivation_setup( &client_derive, derive_alg ) );
if( PSA_ALG_IS_TLS12_PRF( derive_alg ) ||
PSA_ALG_IS_TLS12_PSK_TO_MS( derive_alg ) )
{
PSA_ASSERT( psa_key_derivation_input_bytes( &server_derive,
PSA_KEY_DERIVATION_INPUT_SEED,
(const uint8_t*) "", 0) );
PSA_ASSERT( psa_key_derivation_input_bytes( &client_derive,
PSA_KEY_DERIVATION_INPUT_SEED,
(const uint8_t*) "", 0) );
}
PSA_ASSERT( psa_pake_setup( &server, &cipher_suite ) );
PSA_ASSERT( psa_pake_setup( &client, &cipher_suite ) );
PSA_ASSERT( psa_pake_set_role( &server, PSA_PAKE_ROLE_SERVER ) );
PSA_ASSERT( psa_pake_set_role( &client, PSA_PAKE_ROLE_CLIENT ) );
PSA_ASSERT( psa_pake_set_password_key( &server, key ) );
PSA_ASSERT( psa_pake_set_password_key( &client, key ) );
if( destroy_key == 1 )
psa_destroy_key( key );
if( err_stage == ERR_INJECT_ANTICIPATE_KEY_DERIVATION_1 )
{
TEST_EQUAL( psa_pake_get_implicit_key( &server, &server_derive ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_pake_get_implicit_key( &client, &client_derive ),
PSA_ERROR_BAD_STATE );
goto exit;
}
/* First round */
ecjpake_do_round( alg, primitive_arg, &server, &client,
client_input_first, PAKE_ROUND_ONE,
ERR_NONE, PSA_SUCCESS );
if ( err_stage == ERR_INJECT_ANTICIPATE_KEY_DERIVATION_2 )
{
TEST_EQUAL( psa_pake_get_implicit_key( &server, &server_derive ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_pake_get_implicit_key( &client, &client_derive ),
PSA_ERROR_BAD_STATE );
goto exit;
}
/* Second round */
ecjpake_do_round( alg, primitive_arg, &server, &client,
client_input_first, PAKE_ROUND_TWO,
ERR_NONE, PSA_SUCCESS );
PSA_ASSERT( psa_pake_get_implicit_key( &server, &server_derive ) );
PSA_ASSERT( psa_pake_get_implicit_key( &client, &client_derive ) );
exit:
psa_key_derivation_abort( &server_derive );
psa_key_derivation_abort( &client_derive );
psa_destroy_key( key );
psa_pake_abort( &server );
psa_pake_abort( &client );
PSA_DONE( );
}
/* END_CASE */
/* BEGIN_CASE */
void ecjpake_size_macros( )
{
const psa_algorithm_t alg = PSA_ALG_JPAKE;
const size_t bits = 256;
const psa_pake_primitive_t prim = PSA_PAKE_PRIMITIVE(
PSA_PAKE_PRIMITIVE_TYPE_ECC, PSA_ECC_FAMILY_SECP_R1, bits );
const psa_key_type_t key_type = PSA_KEY_TYPE_ECC_KEY_PAIR(
PSA_ECC_FAMILY_SECP_R1 );
// https://armmbed.github.io/mbed-crypto/1.1_PAKE_Extension.0-bet.0/html/pake.html#pake-step-types
/* The output for KEY_SHARE and ZK_PUBLIC is the same as a public key */
TEST_EQUAL( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_KEY_SHARE),
PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( key_type, bits ) );
TEST_EQUAL( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PUBLIC),
PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( key_type, bits ) );
/* The output for ZK_PROOF is the same bitsize as the curve */
TEST_EQUAL( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PROOF),
PSA_BITS_TO_BYTES( bits ) );
/* Input sizes are the same as output sizes */
TEST_EQUAL( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_KEY_SHARE),
PSA_PAKE_INPUT_SIZE(alg, prim, PSA_PAKE_STEP_KEY_SHARE) );
TEST_EQUAL( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PUBLIC),
PSA_PAKE_INPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PUBLIC) );
TEST_EQUAL( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PROOF),
PSA_PAKE_INPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PROOF) );
/* These inequalities will always hold even when other PAKEs are added */
TEST_LE_U( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_KEY_SHARE),
PSA_PAKE_OUTPUT_MAX_SIZE );
TEST_LE_U( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PUBLIC),
PSA_PAKE_OUTPUT_MAX_SIZE );
TEST_LE_U( PSA_PAKE_OUTPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PROOF),
PSA_PAKE_OUTPUT_MAX_SIZE );
TEST_LE_U( PSA_PAKE_INPUT_SIZE(alg, prim, PSA_PAKE_STEP_KEY_SHARE),
PSA_PAKE_INPUT_MAX_SIZE );
TEST_LE_U( PSA_PAKE_INPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PUBLIC),
PSA_PAKE_INPUT_MAX_SIZE );
TEST_LE_U( PSA_PAKE_INPUT_SIZE(alg, prim, PSA_PAKE_STEP_ZK_PROOF),
PSA_PAKE_INPUT_MAX_SIZE );
}
/* END_CASE */
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