diff options
| author | Jack Lloyd <[email protected]> | 2020-03-06 06:57:46 -0500 |
|---|---|---|
| committer | Jack Lloyd <[email protected]> | 2020-03-06 08:23:29 -0500 |
| commit | d2ada9892be75459f3080fe8f88ea9f6ef10ea1b (patch) | |
| tree | c2e8e9804b54ad8412c7b8bd3ebda139dd2ba0ad /src/lib/math/numbertheory/numthry.h | |
| parent | 06a55af16fbee536cf3aa53370195b22327ca54f (diff) | |
Optimize inverse_mod
About 25% faster
Diffstat (limited to 'src/lib/math/numbertheory/numthry.h')
| -rw-r--r-- | src/lib/math/numbertheory/numthry.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib/math/numbertheory/numthry.h b/src/lib/math/numbertheory/numthry.h index b476db600..e818aa0bb 100644 --- a/src/lib/math/numbertheory/numthry.h +++ b/src/lib/math/numbertheory/numthry.h @@ -81,7 +81,8 @@ BigInt BOTAN_PUBLIC_API(2,0) square(const BigInt& x); * as long as x is less than modulus. It also avoids leaking * information about the modulus, except that it does leak which of 3 * categories the modulus is in: an odd integer, a power of 2, or some -* other even number. +* other even number, and if the modulus is even, leaks the power of 2 +* which divides the modulus. * * @param x a positive integer * @param modulus a positive integer |