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Test mbedtls_dhm_make_params with different x_size

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mbedtls_dhm_make_params() with x_size != size of P is not likely to be
useful, but it's supported, so test it.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2021-03-30 23:44:22 +02:00
parent b27db0acff
commit 2baf2b0532
2 changed files with 51 additions and 19 deletions
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63
tests/suites/test_suite_dhm.data
View file

@ -1,50 +1,83 @@
Diffie-Hellman full exchange: tiny x_size
dhm_do_dhm:10:"93450983094850938450983409623":1:10:"9345098304850938450983409622":0
Diffie-Hellman parameter validation
dhm_invalid_params:
Diffie-Hellman full exchange: 5-bit, x_size=3
dhm_do_dhm:10:"23":3:10:"5":0
Diffie-Hellman full exchange: 5-bit, x_size=2
dhm_do_dhm:10:"23":2:10:"5":0
Diffie-Hellman full exchange: 5-bit #1
dhm_do_dhm:10:"23":10:"5":0
dhm_do_dhm:10:"23":1:10:"5":0
Diffie-Hellman full exchange: 5-bit #2
dhm_do_dhm:10:"23":10:"5":0
dhm_do_dhm:10:"23":1:10:"5":0
Diffie-Hellman full exchange: 5-bit #3
dhm_do_dhm:10:"23":10:"5":0
dhm_do_dhm:10:"23":1:10:"5":0
Diffie-Hellman full exchange: 5-bit #4
dhm_do_dhm:10:"23":10:"5":0
dhm_do_dhm:10:"23":1:10:"5":0
Diffie-Hellman full exchange: 5-bit #5
dhm_do_dhm:10:"23":10:"5":0
dhm_do_dhm:10:"23":1:10:"5":0
Diffie-Hellman full exchange: 97-bit, x_size=14
dhm_do_dhm:10:"93450983094850938450983409623":14:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit #1
dhm_do_dhm:10:"93450983094850938450983409623":10:"9345098304850938450983409622":0
dhm_do_dhm:10:"93450983094850938450983409623":13:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit #2
dhm_do_dhm:10:"93450983094850938450983409623":10:"9345098304850938450983409622":0
dhm_do_dhm:10:"93450983094850938450983409623":13:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit #3
dhm_do_dhm:10:"93450983094850938450983409623":10:"9345098304850938450983409622":0
dhm_do_dhm:10:"93450983094850938450983409623":13:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit #4
dhm_do_dhm:10:"93450983094850938450983409623":10:"9345098304850938450983409622":0
dhm_do_dhm:10:"93450983094850938450983409623":13:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit #5
dhm_do_dhm:10:"93450983094850938450983409623":10:"9345098304850938450983409622":0
dhm_do_dhm:10:"93450983094850938450983409623":13:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit, x_size=12
dhm_do_dhm:10:"93450983094850938450983409623":12:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit, x_size=11
dhm_do_dhm:10:"93450983094850938450983409623":11:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit, x_size=1 #1
dhm_do_dhm:10:"93450983094850938450983409623":1:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit, x_size=1 #2
dhm_do_dhm:10:"93450983094850938450983409623":1:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit, x_size=1 #3
dhm_do_dhm:10:"93450983094850938450983409623":1:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit, x_size=1 #4
dhm_do_dhm:10:"93450983094850938450983409623":1:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 97-bit, x_size=1 #5
dhm_do_dhm:10:"93450983094850938450983409623":1:10:"9345098304850938450983409622":0
Diffie-Hellman full exchange: 286-bit
dhm_do_dhm:10:"93450983094850938450983409623982317398171298719873918739182739712938719287391879381271":10:"9345098309485093845098340962223981329819812792137312973297123912791271":0
dhm_do_dhm:10:"93450983094850938450983409623982317398171298719873918739182739712938719287391879381271":36:10:"9345098309485093845098340962223981329819812792137312973297123912791271":0
Diffie-Hellman trivial subgroup #1
dhm_do_dhm:10:"23":10:"1":MBEDTLS_ERR_DHM_BAD_INPUT_DATA
dhm_do_dhm:10:"23":1:10:"1":MBEDTLS_ERR_DHM_BAD_INPUT_DATA
Diffie-Hellman trivial subgroup #2
dhm_do_dhm:10:"23":10:"-1":MBEDTLS_ERR_DHM_BAD_INPUT_DATA
dhm_do_dhm:10:"23":1:10:"-1":MBEDTLS_ERR_DHM_BAD_INPUT_DATA
Diffie-Hellman small modulus
dhm_do_dhm:10:"3":10:"5":MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED
dhm_do_dhm:10:"3":1:10:"5":MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED
Diffie-Hellman zero modulus
dhm_do_dhm:10:"0":10:"5":MBEDTLS_ERR_DHM_BAD_INPUT_DATA
dhm_do_dhm:10:"0":1:10:"5":MBEDTLS_ERR_DHM_BAD_INPUT_DATA
Diffie-Hellman MPI_MAX_SIZE modulus
dhm_make_public:MBEDTLS_MPI_MAX_SIZE:10:"5":0

7
tests/suites/test_suite_dhm.function
View file

@ -171,7 +171,7 @@ exit:
/* END_CASE */
/* BEGIN_CASE */
void dhm_do_dhm( int radix_P, char *input_P,
void dhm_do_dhm( int radix_P, char *input_P, int x_size,
int radix_G, char *input_G, int result )
{
mbedtls_dhm_context ctx_srv;
@ -185,7 +185,7 @@ void dhm_do_dhm( int radix_P, char *input_P,
size_t pub_cli_len = 0;
size_t sec_srv_len;
size_t sec_cli_len;
int x_size, i;
int i;
mbedtls_test_rnd_pseudo_info rnd_info;
mbedtls_dhm_init( &ctx_srv );
@ -201,8 +201,7 @@ void dhm_do_dhm( int radix_P, char *input_P,
*/
TEST_ASSERT( mbedtls_mpi_read_string( &ctx_srv.P, radix_P, input_P ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_string( &ctx_srv.G, radix_G, input_G ) == 0 );
x_size = mbedtls_mpi_size( &ctx_srv.P );
pub_cli_len = x_size;
pub_cli_len = mbedtls_mpi_size( &ctx_srv.P );
/*
* First key exchange