#include "ssh.h" static CipherState*inittwiddle(Conn *c, int){	/* must be non-nil */	fprint(2, "twiddle key is %.*H\n", SESSKEYLEN, c->sesskey);	return (CipherState*)~0;} static voidtwiddle(CipherState*, uchar *buf, int n){	int i; 	for(i=0; i<n; i++)		buf[i] ^= 0xFF;} Cipher ciphertwiddle ={	SSH_CIPHER_TWIDDLE,	"twiddle",	inittwiddle,	twiddle,	twiddle,};