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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
This commit is contained in:
Gabor Mezei 2023-03-09 13:41:10 +01:00
parent d1f16b937e
commit e4710ae9ed
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GPG key ID: F072ACA227ACD71D
2 changed files with 5 additions and 1 deletions
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4
library/ecp_curves.c
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@ -5150,6 +5150,8 @@ int mbedtls_ecp_mod_p256_raw(mbedtls_mpi_uint *X, size_t X_limbs)
RESET; RESET;
/* Use 2^224 * (2^32 - 1) + 2^192 + 2^96 - 1
* to modulo reduce the final carry. */
ADD_LAST; NEXT; // A0 ADD_LAST; NEXT; // A0
; NEXT; // A1 ; NEXT; // A1
; NEXT; // A2 ; NEXT; // A2
@ -5161,6 +5163,8 @@ int mbedtls_ecp_mod_p256_raw(mbedtls_mpi_uint *X, size_t X_limbs)
RESET; RESET;
/* Use 2^224 * (2^32 - 1) + 2^192 + 2^96 - 1
* to modulo reduce the carry generated by the previous reduction. */
ADD_LAST; NEXT; // A0 ADD_LAST; NEXT; // A0
; NEXT; // A1 ; NEXT; // A1
; NEXT; // A2 ; NEXT; // A2

2
scripts/mbedtls_dev/ecp.py
View file

@ -147,7 +147,7 @@ class EcpP224R1Raw(bignum_common.ModOperationCommon,
class EcpP256R1Raw(bignum_common.ModOperationCommon, class EcpP256R1Raw(bignum_common.ModOperationCommon,
EcpTarget): EcpTarget):
"""Test cases for ecp quasi_reduction().""" """Test cases for ECP P256 fast reduction."""
symbol = "-" symbol = "-"
test_function = "ecp_mod_p256_raw" test_function = "ecp_mod_p256_raw"
test_name = "ecp_mod_p256_raw" test_name = "ecp_mod_p256_raw"