lib/mbedtls
1
0
Fork 0
mirror of https://github.com/Mbed-TLS/mbedtls.git synced 2025-08-05 19:35:48 +03:00
Code Activity

Improve docs in mbedtls_mpi_lt_mpi_ct

Browse Source 
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman
2023-08-09 14:53:18 +01:00
parent d44dd96132
commit b69239c604
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
library/bignum.c
View File

@@ -72,7 +72,7 @@ int mbedtls_mpi_lt_mpi_ct(const mbedtls_mpi *X,
} }
/* /*
* Set sign_N to 1 if N >= 0, 0 if N < 0. * Set N_is_negative to MBEDTLS_CT_FALSE if N >= 0, MBEDTLS_CT_TRUE if N < 0.
* We know that N->s == 1 if N >= 0 and N->s == -1 if N < 0. * We know that N->s == 1 if N >= 0 and N->s == -1 if N < 0.
*/ */
X_is_negative = mbedtls_ct_bool((X->s & 2) >> 1); X_is_negative = mbedtls_ct_bool((X->s & 2) >> 1);
@@ -83,7 +83,7 @@ int mbedtls_mpi_lt_mpi_ct(const mbedtls_mpi *X,
* That is if X is negative (X_is_negative == 1), then X < Y is true and it * That is if X is negative (X_is_negative == 1), then X < Y is true and it
* is false if X is positive (X_is_negative == 0). * is false if X is positive (X_is_negative == 0).
*/ */
different_sign = mbedtls_ct_bool_xor(X_is_negative, Y_is_negative); // non-zero if different sign different_sign = mbedtls_ct_bool_xor(X_is_negative, Y_is_negative); // true if different sign
result = mbedtls_ct_bool_and(different_sign, X_is_negative); result = mbedtls_ct_bool_and(different_sign, X_is_negative);
/* /*