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(parent: 92c4468) | patch
Implement fixed-window exponentiation to mitigate hyper-threading
authorBodo Möller <bodo@openssl.org>
Mon, 16 May 2005 01:43:31 +0000 (01:43 +0000)
committerBodo Möller <bodo@openssl.org>
Mon, 16 May 2005 01:43:31 +0000 (01:43 +0000)
commit46a643763de6d8e39ecf6f76fa79b4d04885aa59
treee1f3cfc98bddba797b5300977dbf3223f008fc4atree | snapshot
parent92c44685724c0d993ea8920577680f3c0a1d79c8commit | diff
Implement fixed-window exponentiation to mitigate hyper-threading
timing attacks.

BN_FLG_EXP_CONSTTIME requests this algorithm, and this done by default for
RSA/DSA/DH private key computations unless
RSA_FLAG_NO_EXP_CONSTTIME/DSA_FLAG_NO_EXP_CONSTTIME/
DH_FLAG_NO_EXP_CONSTTIME is set.

Submitted by: Matthew D Wood
Reviewed by: Bodo Moeller
19 files changed:
CHANGES diff | blob | blame | history
apps/speed.c diff | blob | blame | history
crypto/bn/bn.h diff | blob | blame | history
crypto/bn/bn_err.c diff | blob | blame | history
crypto/bn/bn_exp.c diff | blob | blame | history
crypto/bn/bn_lcl.h diff | blob | blame | history
crypto/bn/bntest.c diff | blob | blame | history
crypto/bn/expspeed.c diff | blob | blame | history
crypto/bn/exptest.c diff | blob | blame | history
crypto/dh/dh.h diff | blob | blame | history
crypto/dh/dh_key.c diff | blob | blame | history
crypto/dh/dhtest.c diff | blob | blame | history
crypto/dsa/dsa.h diff | blob | blame | history
crypto/dsa/dsa_key.c diff | blob | blame | history
crypto/dsa/dsa_ossl.c diff | blob | blame | history
crypto/dsa/dsatest.c diff | blob | blame | history
crypto/rsa/rsa.h diff | blob | blame | history
crypto/rsa/rsa_eay.c diff | blob | blame | history
crypto/rsa/rsa_test.c diff | blob | blame | history
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