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Add invalid key tests for curve SECP224K1

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This curve has special arithmetic on 64 bit platforms and an untested
path lead to trying to free a buffer on the stack.

For the sake of completeness, a test case for a point with non-affine
coordinates has been added as well.
This commit is contained in:
Janos Follath 2017-01-27 15:51:14 +00:00 committed by Simon Butcher
parent d02dc14c94
commit 28fff14113
2 changed files with 14 additions and 5 deletions
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12
tests/suites/test_suite_ecp.data
View file

@ -32,11 +32,19 @@ mbedtls_ecp_curve_info:MBEDTLS_ECP_DP_SECP192R1:19:192:"secp192r1"
ECP check pubkey Montgomery #1 (too big) ECP check pubkey Montgomery #1 (too big)
depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
ecp_check_pub_mx:MBEDTLS_ECP_DP_CURVE25519:"010000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ECP_INVALID_KEY ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"010000000000000000000000000000000000000000000000000000000000000000":"0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
ECP check pubkey Montgomery #2 (biggest) ECP check pubkey Montgomery #2 (biggest)
depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
ecp_check_pub_mx:MBEDTLS_ECP_DP_CURVE25519:"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":0 ecp_check_pub:MBEDTLS_ECP_DP_CURVE25519:"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF":"0":"1":0
ECP check pubkey Koblitz #1 (point not on curve)
depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
ecp_check_pub:MBEDTLS_ECP_DP_SECP224K1:"E2000000000000BB3A13D43B323337383935321F0603551D":"100101FF040830060101FF02010A30220603551D0E041B04636FC0C0":"1":MBEDTLS_ERR_ECP_INVALID_KEY
ECP check pubkey Koblitz #2 (coordinate not affine)
depends_on:MBEDTLS_ECP_DP_SECP224K1_ENABLED
ecp_check_pub:MBEDTLS_ECP_DP_SECP224K1:"E2000000000000BB3A13D43B323337383935321F0603551D":"100101FF040830060101FF02010A30220603551D0E041B04636FC0C0":"101":MBEDTLS_ERR_ECP_INVALID_KEY
ECP write binary #0 (zero, bad format) ECP write binary #0 (zero, bad format)
depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED

7
tests/suites/test_suite_ecp.function
View file

@ -29,7 +29,7 @@ void mbedtls_ecp_curve_info( int id, int tls_id, int size, char *name )
/* END_CASE */ /* END_CASE */
/* BEGIN_CASE */ /* BEGIN_CASE */
void ecp_check_pub_mx( int grp_id, char *key_hex, int ret ) void ecp_check_pub( int grp_id, char *x_hex, char *y_hex, char *z_hex, int ret )
{ {
mbedtls_ecp_group grp; mbedtls_ecp_group grp;
mbedtls_ecp_point P; mbedtls_ecp_point P;
@ -39,8 +39,9 @@ void ecp_check_pub_mx( int grp_id, char *key_hex, int ret )
TEST_ASSERT( mbedtls_ecp_group_load( &grp, grp_id ) == 0 ); TEST_ASSERT( mbedtls_ecp_group_load( &grp, grp_id ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_string( &P.X, 16, key_hex ) == 0 ); TEST_ASSERT( mbedtls_mpi_read_string( &P.X, 16, x_hex ) == 0 );
TEST_ASSERT( mbedtls_mpi_lset( &P.Z, 1 ) == 0 ); TEST_ASSERT( mbedtls_mpi_read_string( &P.Y, 16, y_hex ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_string( &P.Z, 16, z_hex ) == 0 );
TEST_ASSERT( mbedtls_ecp_check_pubkey( &grp, &P ) == ret ); TEST_ASSERT( mbedtls_ecp_check_pubkey( &grp, &P ) == ret );