| #
6d702ceb |
| 09-Jun-2022 |
Tomas Mraz |
Add an extra reduction step to RSAZ mod_exp implementations
Inspired by BoringSSL fix by David Benjamin.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pau
Add an extra reduction step to RSAZ mod_exp implementations
Inspired by BoringSSL fix by David Benjamin.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18510)
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| #
0ae365e1 |
| 09-Jun-2022 |
Tomas Mraz |
Always end BN_mod_exp_mont_consttime with normal Montgomery reduction.
This partially fixes a bug where, on x86_64, BN_mod_exp_mont_consttime
would sometimes return m, the modulus, when
Always end BN_mod_exp_mont_consttime with normal Montgomery reduction.
This partially fixes a bug where, on x86_64, BN_mod_exp_mont_consttime
would sometimes return m, the modulus, when it should have returned
zero. Thanks to Guido Vranken for reporting it. It is only a partial fix
because the same bug also exists in the "rsaz" codepath.
The bug only affects zero outputs (with non-zero inputs), so we believe
it has no security impact on our cryptographic functions.
The fx is to delete lowercase bn_from_montgomery altogether, and have the
mont5 path use the same BN_from_montgomery ending as the non-mont5 path.
This only impacts the final step of the whole exponentiation and has no
measurable perf impact.
See the original BoringSSL commit
https://boringssl.googlesource.com/boringssl/+/13c9d5c69d04485a7a8840c12185c832026c8315
for further analysis.
Original-author: David Benjamin <davidben@google.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18510)
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| #
fecb3aae |
| 03-May-2022 |
Matt Caswell |
Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Release: yes
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| #
3469282e |
| 28-Feb-2022 |
Tomas Mraz |
Add a negative testcase for BN_mod_sqrt
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
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Revision tags: openssl-3.0.0-alpha17, openssl-3.0.0-alpha16, openssl-3.0.0-alpha15, openssl-3.0.0-alpha14, OpenSSL_1_1_1k, openssl-3.0.0-alpha13, openssl-3.0.0-alpha12, OpenSSL_1_1_1j, openssl-3.0.0-alpha11, openssl-3.0.0-alpha10, OpenSSL_1_1_1i, openssl-3.0.0-alpha9, openssl-3.0.0-alpha8, openssl-3.0.0-alpha7, OpenSSL_1_1_1h, openssl-3.0.0-alpha6, openssl-3.0.0-alpha5, openssl-3.0.0-alpha4, openssl-3.0.0-alpha3, openssl-3.0.0-alpha2, openssl-3.0.0-alpha1, OpenSSL_1_1_1g, OpenSSL_1_1_1f, OpenSSL_1_1_1e, OpenSSL_1_0_2u, OpenSSL_1_0_2t, OpenSSL_1_1_0l, OpenSSL_1_1_1d, OpenSSL_1_1_1c, OpenSSL_1_1_0k, OpenSSL_1_0_2s, OpenSSL_1_0_2r, OpenSSL_1_1_1b |
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| #
909f1a2e |
| 06-Dec-2018 |
Richard Levitte |
Following the license change, modify the boilerplates in test/
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7767)
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Revision tags: OpenSSL_1_0_2q, OpenSSL_1_1_0j, OpenSSL_1_1_1a, OpenSSL_1_1_1, OpenSSL_1_1_1-pre9, OpenSSL_1_0_2p, OpenSSL_1_1_0i, OpenSSL_1_1_1-pre8, OpenSSL_1_1_1-pre7, OpenSSL_1_1_1-pre6, OpenSSL_1_1_1-pre5, OpenSSL_1_1_1-pre4, OpenSSL_1_0_2o, OpenSSL_1_1_0h, OpenSSL_1_1_1-pre3, OpenSSL_1_1_1-pre2, OpenSSL_1_1_1-pre1, OpenSSL_1_0_2n, OpenSSL_1_0_2m, OpenSSL_1_1_0g, OpenSSL_1_0_2l, OpenSSL_1_1_0f |
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| #
c537e74b |
| 16-May-2017 |
Richard Levitte |
Move bn and evp test programs input data to their respective data dir
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3472)
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