(defsubst md4-H (x y z) (logxor x y z))
(defmacro md4-make-step (name func)
- (`
- (defun (, name) (a b c d xk s ac)
+ `(defun ,name (a b c d xk s ac)
(let*
- ((h1 (+ (car a) ((, func) (car b) (car c) (car d)) (car xk) (car ac)))
- (l1 (+ (cdr a) ((, func) (cdr b) (cdr c) (cdr d)) (cdr xk) (cdr ac)))
+ ((h1 (+ (car a) (,func (car b) (car c) (car d)) (car xk) (car ac)))
+ (l1 (+ (cdr a) (,func (cdr b) (cdr c) (cdr d)) (cdr xk) (cdr ac)))
(h2 (logand 65535 (+ h1 (lsh l1 -16))))
(l2 (logand 65535 l1))
;; cyclic shift of 32 bits integer
(l3 (logand 65535 (if (> s 15)
(+ (lsh l2 (- s 32)) (lsh h2 (- s 16)))
(+ (lsh l2 s) (lsh h2 (- s 16)))))))
- (cons h3 l3)))))
+ (cons h3 l3))))
(md4-make-step md4-round1 md4-F)
(md4-make-step md4-round2 md4-G)