Emilia Kasper d46e946d26 BN_mod_exp_mont_consttime: check for zero modulus.
Don't dereference |d| when |top| is zero. Also test that various BIGNUM methods behave correctly on zero/even inputs.

Follow-up to b11980d79a52ec08844f08bea0e66c04b691840b

Reviewed-by: Rich Salz <rsalz@openssl.org>
2015-08-31 19:33:42 +02:00
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2015-07-14 01:18:57 +02:00
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