EVPCipherContext *c = cloneSelf(); c->r = r.copy();
RSAKeyContext *c = new RSAKeyContext; if(pub) { ++(pub->references); c->pub = pub; } if(sec) { ++(sec->references); c->sec = sec; }
	QCA_CipherContext *clone()	{		EVPCipherContext *c = cloneSelf();		c->r = r.copy();		return c;	}