4 Commits

Author SHA1 Message Date
Minos Galanakis
b9243ef231 test_suite_bignum: Fixed whitespace issues
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
2022-10-25 15:12:23 +01:00
Minos Galanakis
4f43f61c6a Renamed mbedtls_mpi_get_montgomery_constant_unsafe to mpi_core_get_mont_R2_unsafe
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
2022-10-25 15:12:23 +01:00
Minos Galanakis
1a1b175554 test_suite_bignum: Added tests for mpi_get_montgomery_constant_unsafe()
This patch adds the test for the method calculating the RR. The input/expected
data are generated manually using the following Python3 snippet:

~~~~~
import math

title="mpi_get_montgomery_constant_unsafe"
tt = title + " #{}"

in_data = [ "0f", ... ]

def limb_no(number, bil=64):
    return int(math.ceil(int.bit_length(number)/(bil * 1.0)))

def calc_rr(number, bil=64 ):
    return '{:x}'.format(pow(pow(2, limb_no(number, bil) * bil), 2, number))

def calc_rr_str(number, prefix=""):
    rr64 = calc_rr(number)
    rr32 = calc_rr(number, bil=32)
    return '{}:"{:x}":"{}":"{}"'.format(prefix,number, rr32, rr64)

print("\n\n".join(["{}\n{}".format(tt.format(in_data.index(v)+1), calc_rr_str(int(v,base=16), title)) for v in in_data]))
~~~~~

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
2022-10-25 15:12:01 +01:00
Gilles Peskine
ce22066211 Rename test_suite_bignum for consistency with bignum.{h,c}
Align the name of the bignum test suite with the source module (which was
renamed from mpi.c to bignum.c in the PolarSSL 1.x days). This also brings
it into line with the test suites for the low-level bignum interfaces.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2022-10-21 18:54:43 +02:00