mpmul and mpsqr can't cope with zero-length numbers

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#18 mpmul and mpsqr can't cope with zero-length numbers

Status: open

Owner: nobody

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Priority: 5

Updated: 2012-12-14

Created: 2012-12-14

Private: No

They lead to crashes if you try f.ex. to verify a RSA signature consisting just of 0x00 bytes converted to mpnumber by mpnsetbin.

There might be more functions apart from mpmul and mpsqr suffering from this problem.