diff options
| author | Jack Lloyd <[email protected]> | 2015-11-29 13:03:06 -0500 |
|---|---|---|
| committer | Jack Lloyd <[email protected]> | 2015-11-29 13:03:06 -0500 |
| commit | e3db054e582c676e6f2752e216fa03fa408b3dff (patch) | |
| tree | 265d44e7dd142eec065e5c7065bd9faaa8bdaee5 /src/lib/pubkey/dl_group | |
| parent | ebf2164a972517ee405428d9d0641fe296aba745 (diff) | |
Add more workfactor estimate helpers.
Specifically a named one for integer factorization (despite using same
formula as DL calc) which incorporates the k value from RFC 3766. Also
adds dl_exponent_size which returns the exponent size, this one ignores
k thus using a ~10 bit larger exponent than strictly necessary.
Adding in k downgrades 1024 bit RSA to exactly 80 bits, which is probably
about right.
Diffstat (limited to 'src/lib/pubkey/dl_group')
| -rw-r--r-- | src/lib/pubkey/dl_group/dl_group.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/pubkey/dl_group/dl_group.cpp b/src/lib/pubkey/dl_group/dl_group.cpp index fbaa67eaa..8e9c35f2a 100644 --- a/src/lib/pubkey/dl_group/dl_group.cpp +++ b/src/lib/pubkey/dl_group/dl_group.cpp @@ -55,7 +55,7 @@ DL_Group::DL_Group(RandomNumberGenerator& rng, else if(type == Prime_Subgroup) { if(!qbits) - qbits = 2 * dl_work_factor(pbits); + qbits = dl_exponent_size(pbits); q = random_prime(rng, qbits); BigInt X; |