But the header talks about a 64 bit key? I'm a bit lost actually. Edit: Okay, I see it now. 64 bits of cipher of which 24 bits of that cipher are set to a valu

But the header talks about a 64 bit key? I'm a bit lost actually. Edit: Okay, I see it now. 64 bits of cipher of which 24 bits of that cipher are set to a value derived from a 760 bit pubkey.