+ *) Minimal support for X9.31 signatures and PSS padding modes. This is
+ mainly for FIPS compliance and not fully integrated at this stage.
+ [Steve Henson]
+
+ *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
+ the exponentiation using a fixed-length exponent. (Otherwise,
+ the information leaked through timing could expose the secret key
+ after many signatures; cf. Bleichenbacher's attack on DSA with
+ biased k.)
+ [Bodo Moeller]
+