mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-22 18:05:40 +01:00
9d6a535ba1
This commit first changes the return convention of EccPoint_mult_safer() so
that it properly reports when faults are detected. Then all functions that
call it need to be changed to (1) follow the same return convention and (2)
properly propagate UECC_FAULT_DETECTED when it occurs.
Here's the reverse call graph from EccPoint_mult_safer() to the rest of the
library (where return values are translated to the MBEDTLS_ERR_ space) and test
functions (where expected return values are asserted explicitly).
EccPoint_mult_safer()
EccPoint_compute_public_key()
uECC_compute_public_key()
pkparse.c
tests/suites/test_suite_pkparse.function
uECC_make_key_with_d()
uECC_make_key()
ssl_cli.c
ssl_srv.c
tests/suites/test_suite_pk.function
tests/suites/test_suite_tinycrypt.function
uECC_shared_secret()
ssl_tls.c
tests/suites/test_suite_tinycrypt.function
uECC_sign_with_k()
uECC_sign()
pk.c
tests/suites/test_suite_tinycrypt.function
Note: in uECC_sign_with_k() a test for uECC_vli_isZero(p) is suppressed
because it is redundant with a more thorough test (point validity) done at the
end of EccPoint_mult_safer(). This redundancy was introduced in a previous
commit but not noticed earlier.
111 lines
3.6 KiB
Plaintext
111 lines
3.6 KiB
Plaintext
/* BEGIN_HEADER */
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#include "tinycrypt/ecc.h"
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#include "tinycrypt/ecc_dh.h"
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#include "tinycrypt/ecc_dsa.h"
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_USE_TINYCRYPT
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE depends_on:MBEDTLS_USE_TINYCRYPT */
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void test_ecdh()
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{
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uint8_t private1[NUM_ECC_BYTES] = {0};
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uint8_t private2[NUM_ECC_BYTES] = {0};
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uint8_t public1[2*NUM_ECC_BYTES] = {0};
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uint8_t public2[2*NUM_ECC_BYTES] = {0};
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uint8_t secret1[NUM_ECC_BYTES] = {0};
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uint8_t secret2[NUM_ECC_BYTES] = {0};
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uECC_set_rng( &uecc_rng_wrapper );
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TEST_ASSERT( uECC_make_key( public1, private1 ) == UECC_SUCCESS );
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TEST_ASSERT( uECC_make_key( public2, private2 ) == UECC_SUCCESS );
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TEST_ASSERT( uECC_shared_secret( public2, private1, secret1 ) == UECC_SUCCESS );
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TEST_ASSERT( uECC_shared_secret( public1, private2, secret2 ) == UECC_SUCCESS );
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TEST_ASSERT( memcmp( secret1, secret2, sizeof( secret1 ) ) == 0 );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_USE_TINYCRYPT */
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void test_ecdsa()
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{
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uint8_t private[NUM_ECC_BYTES] = {0};
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uint8_t public[2*NUM_ECC_BYTES] = {0};
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uint8_t hash[NUM_ECC_BYTES] = {0};
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uint8_t sig[2*NUM_ECC_BYTES] = {0};
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uECC_set_rng( &uecc_rng_wrapper );
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TEST_ASSERT( rnd_std_rand( NULL, hash, NUM_ECC_BYTES ) == 0 );
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TEST_ASSERT( uECC_make_key( public, private ) == UECC_SUCCESS );
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TEST_ASSERT( uECC_sign( private, hash, sizeof( hash ), sig ) == UECC_SUCCESS );
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TEST_ASSERT( uECC_verify( public, hash, sizeof( hash ), sig ) == UECC_SUCCESS );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_USE_TINYCRYPT */
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void ecdh_primitive_testvec( data_t * private1, data_t * xA_str,
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data_t * yA_str, data_t * private2,
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data_t * xB_str, data_t * yB_str, data_t * z_str )
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{
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uint8_t public1[2*NUM_ECC_BYTES] = {0};
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uint8_t public2[2*NUM_ECC_BYTES] = {0};
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uint8_t secret1[NUM_ECC_BYTES] = {0};
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uint8_t secret2[NUM_ECC_BYTES] = {0};
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memcpy( public1, xA_str->x, xA_str->len );
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memcpy( public1 + NUM_ECC_BYTES, yA_str->x, yA_str->len );
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memcpy( public2, xB_str->x, xB_str->len );
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memcpy( public2 + NUM_ECC_BYTES, yB_str->x, yB_str->len );
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// Compute shared secrets and compare to test vector secret
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TEST_ASSERT( uECC_shared_secret( public2, private1->x, secret1 ) == UECC_SUCCESS );
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TEST_ASSERT( uECC_shared_secret( public1, private2->x, secret2 ) == UECC_SUCCESS );
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TEST_ASSERT( memcmp( secret1, secret2, sizeof( secret1 ) ) == 0 );
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TEST_ASSERT( memcmp( secret1, z_str->x, sizeof( secret1 ) ) == 0 );
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TEST_ASSERT( memcmp( secret2, z_str->x, sizeof( secret2 ) ) == 0 );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_USE_TINYCRYPT */
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void ecdsa_primitive_testvec( data_t * xQ_str, data_t * yQ_str,
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data_t * hash, data_t * r_str, data_t * s_str )
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{
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uint8_t pub_bytes[2*NUM_ECC_BYTES] = {0};
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uint8_t sig_bytes[2*NUM_ECC_BYTES] = {0};
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memcpy( pub_bytes, xQ_str->x, xQ_str->len );
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memcpy( pub_bytes + NUM_ECC_BYTES, yQ_str->x, yQ_str->len );
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memcpy( sig_bytes, r_str->x, r_str->len );
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memcpy( sig_bytes + NUM_ECC_BYTES, s_str->x, r_str->len );
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TEST_ASSERT( uECC_verify( pub_bytes, hash->x, hash->len,
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sig_bytes ) == UECC_SUCCESS );
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// Alter the signature and check the verification fails
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for( int i = 0; i < 2*NUM_ECC_BYTES; i++ )
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{
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uint8_t temp = sig_bytes[i];
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sig_bytes[i] = ( sig_bytes[i] + 1 ) % 256;
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TEST_ASSERT( uECC_verify( pub_bytes, hash->x, hash->len,
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sig_bytes ) == UECC_FAILURE );
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sig_bytes[i] = temp;
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}
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}
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/* END_CASE */
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