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| author | Werner Koch <wk@gnupg.org> | 2013-09-07 10:06:46 +0200 |
|---|---|---|
| committer | Werner Koch <wk@gnupg.org> | 2013-09-16 15:46:34 +0200 |
| commit | a7a9cdcaaf3979baa18dad51e722882581349f45 (patch) | |
| tree | e4491c7fd6a35054238411385141714ca4cea5f4 /THANKS | |
| parent | bc5199a02abe428ad377443280b3eda60141a1d6 (diff) | |
| download | libgcrypt-a7a9cdcaaf3979baa18dad51e722882581349f45.tar.gz | |
Fix bug in _gcry_mpi_tdiv_q_2exp.
* mpi/mpi-internal.h (MPN_COPY_INCR): Make it work.
--
This bug has been with us since the version 0.0.0 of GnuPG.
Fortunately it only affects an optimized code path which is rarely
used in practice: If the shift size matches the size of a
limb (i.e.. 32 or 64); this is is_prime in primegen.c. Over there the
Rabin-Miller test may fail with a probability of 2^-31 (that is if the
to be tested prime - 1 has the low 32 bits cleared). In practice the
probability is even much less because we first do a Fermat test on the
randomly generated candidates which sorts out the majority of
composite numbers.
The bug in MPN_COPY_INCR was found by Sven Bjorn.
Signed-off-by: Werner Koch <wk@gnupg.org>
Diffstat (limited to 'THANKS')
| -rw-r--r-- | THANKS | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -135,6 +135,7 @@ Steffen Ullrich ccrlphr@xensei.com Steffen Zahn zahn@berlin.snafu.de Steven Bakker steven@icoe.att.com Susanne Schultz schultz@hsp.de +Sven Bjorn Szakats Istvan szaki.ms@gmail.com Thiago Jung Bauermann jungmann@cwb.matrix.com.br Thomas Roessler roessler@guug.de |