(defconst sha1-K3-high 51810) ; (string-to-number "CA62" 16)
(defconst sha1-K3-low 49622) ; (string-to-number "C1D6" 16)
- ;; original definition of sha1-F0.
- ;; (defmacro sha1-F0 (B C D)
- ;; `(logior (logand ,B ,C)
- ;; (logand (lognot ,B) ,D)))
- ;; a little optimization from GnuPG/cipher/sha1.c.
+;;; original definition of sha1-F0.
+;;; (defmacro sha1-F0 (B C D)
+;;; (` (logior (logand (, B) (, C))
+;;; (logand (lognot (, B)) (, D)))))
+;;; a little optimization from GnuPG/cipher/sha1.c.
(defmacro sha1-F0 (B C D)
- `(logxor ,D (logand ,B (logxor ,C ,D))))
+ (` (logxor (, D) (logand (, B) (logxor (, C) (, D))))))
(defmacro sha1-F1 (B C D)
- `(logxor ,B ,C ,D))
- ;; original definition of sha1-F2.
- ;; (defmacro sha1-F2 (B C D)
- ;; `(logior (logand ,B ,C)
- ;; (logand ,B ,D)
- ;; (logand ,C ,D)))
- ;; a little optimization from GnuPG/cipher/sha1.c.
+ (` (logxor (, B) (, C) (, D))))
+;;; original definition of sha1-F2.
+;;; (defmacro sha1-F2 (B C D)
+;;; (` (logior (logand (, B) (, C))
+;;; (logand (, B) (, D))
+;;; (logand (, C) (, D)))))
+;;; a little optimization from GnuPG/cipher/sha1.c.
(defmacro sha1-F2 (B C D)
- `(logior (logand ,B ,C)
- (logand ,D (logior ,B ,C))))
+ (` (logior (logand (, B) (, C))
+ (logand (, D) (logior (, B) (, C))))))
(defmacro sha1-F3 (B C D)
- `(logxor ,B ,C ,D))
+ (` (logxor (, B) (, C) (, D))))
(defmacro sha1-S1 (W-high W-low)
- `(let ((W-high ,W-high)
- (W-low ,W-low))
- (setq S1W-high (+ (% (* W-high 2) 65536)
- (/ W-low ,(/ 65536 2))))
- (setq S1W-low (+ (/ W-high ,(/ 65536 2))
- (% (* W-low 2) 65536)))))
+ (` (let ((W-high (, W-high))
+ (W-low (, W-low)))
+ (setq S1W-high (+ (% (* W-high 2) 65536)
+ (/ W-low (, (/ 65536 2)))))
+ (setq S1W-low (+ (/ W-high (, (/ 65536 2)))
+ (% (* W-low 2) 65536))))))
(defmacro sha1-S5 (A-high A-low)
- `(progn
- (setq S5A-high (+ (% (* ,A-high 32) 65536)
- (/ ,A-low ,(/ 65536 32))))
- (setq S5A-low (+ (/ ,A-high ,(/ 65536 32))
- (% (* ,A-low 32) 65536)))))
+ (` (progn
+ (setq S5A-high (+ (% (* (, A-high) 32) 65536)
+ (/ (, A-low) (, (/ 65536 32)))))
+ (setq S5A-low (+ (/ (, A-high) (, (/ 65536 32)))
+ (% (* (, A-low) 32) 65536))))))
(defmacro sha1-S30 (B-high B-low)
- `(progn
- (setq S30B-high (+ (/ ,B-high 4)
- (* (% ,B-low 4) ,(/ 65536 4))))
- (setq S30B-low (+ (/ ,B-low 4)
- (* (% ,B-high 4) ,(/ 65536 4))))))
+ (` (progn
+ (setq S30B-high (+ (/ (, B-high) 4)
+ (* (% (, B-low) 4) (, (/ 65536 4)))))
+ (setq S30B-low (+ (/ (, B-low) 4)
+ (* (% (, B-high) 4) (, (/ 65536 4))))))))
(defmacro sha1-OP (round)
- `(progn
- (sha1-S5 sha1-A-high sha1-A-low)
- (sha1-S30 sha1-B-high sha1-B-low)
- (setq sha1-A-low (+ (,(intern (format "sha1-F%d" round))
- sha1-B-low sha1-C-low sha1-D-low)
- sha1-E-low
- ,(symbol-value
- (intern (format "sha1-K%d-low" round)))
- (aref block-low idx)
- (progn
- (setq sha1-E-low sha1-D-low)
- (setq sha1-D-low sha1-C-low)
- (setq sha1-C-low S30B-low)
- (setq sha1-B-low sha1-A-low)
- S5A-low)))
- (setq carry (/ sha1-A-low 65536))
- (setq sha1-A-low (% sha1-A-low 65536))
- (setq sha1-A-high (% (+ (,(intern (format "sha1-F%d" round))
- sha1-B-high sha1-C-high sha1-D-high)
- sha1-E-high
- ,(symbol-value
- (intern (format "sha1-K%d-high" round)))
- (aref block-high idx)
- (progn
- (setq sha1-E-high sha1-D-high)
- (setq sha1-D-high sha1-C-high)
- (setq sha1-C-high S30B-high)
- (setq sha1-B-high sha1-A-high)
- S5A-high)
- carry)
- 65536))))
+ (` (progn
+ (sha1-S5 sha1-A-high sha1-A-low)
+ (sha1-S30 sha1-B-high sha1-B-low)
+ (setq sha1-A-low (+ ((, (intern (format "sha1-F%d" round)))
+ sha1-B-low sha1-C-low sha1-D-low)
+ sha1-E-low
+ (, (symbol-value
+ (intern (format "sha1-K%d-low" round))))
+ (aref block-low idx)
+ (progn
+ (setq sha1-E-low sha1-D-low)
+ (setq sha1-D-low sha1-C-low)
+ (setq sha1-C-low S30B-low)
+ (setq sha1-B-low sha1-A-low)
+ S5A-low)))
+ (setq carry (/ sha1-A-low 65536))
+ (setq sha1-A-low (% sha1-A-low 65536))
+ (setq sha1-A-high (% (+ ((, (intern (format "sha1-F%d" round)))
+ sha1-B-high sha1-C-high sha1-D-high)
+ sha1-E-high
+ (, (symbol-value
+ (intern (format "sha1-K%d-high" round))))
+ (aref block-high idx)
+ (progn
+ (setq sha1-E-high sha1-D-high)
+ (setq sha1-D-high sha1-C-high)
+ (setq sha1-C-high S30B-high)
+ (setq sha1-B-high sha1-A-high)
+ S5A-high)
+ carry)
+ 65536)))))
(defmacro sha1-add-to-H (H X)
- `(progn
- (setq ,(intern (format "sha1-%s-low" H))
- (+ ,(intern (format "sha1-%s-low" H))
- ,(intern (format "sha1-%s-low" X))))
- (setq carry (/ ,(intern (format "sha1-%s-low" H)) 65536))
- (setq ,(intern (format "sha1-%s-low" H))
- (% ,(intern (format "sha1-%s-low" H)) 65536))
- (setq ,(intern (format "sha1-%s-high" H))
- (% (+ ,(intern (format "sha1-%s-high" H))
- ,(intern (format "sha1-%s-high" X))
- carry)
- 65536))))
+ (` (progn
+ (setq (, (intern (format "sha1-%s-low" H)))
+ (+ (, (intern (format "sha1-%s-low" H)))
+ (, (intern (format "sha1-%s-low" X)))))
+ (setq carry (/ (, (intern (format "sha1-%s-low" H))) 65536))
+ (setq (, (intern (format "sha1-%s-low" H)))
+ (% (, (intern (format "sha1-%s-low" H))) 65536))
+ (setq (, (intern (format "sha1-%s-high" H)))
+ (% (+ (, (intern (format "sha1-%s-high" H)))
+ (, (intern (format "sha1-%s-high" X)))
+ carry)
+ 65536)))))
)
;;; buffers (H0 H1 H2 H3 H4).
If BINARY is non-nil, return a string in binary form."
(if (stringp object)
(sha1-string object binary)
- (with-current-buffer object
+ (save-excursion
+ (set-buffer object)
(sha1-region (or beg (point-min)) (or end (point-max)) binary))))
(provide 'sha1-el)
projects / elisp / flim.git / blobdiff