mirror of
https://github.com/urbit/shrub.git
synced 2024-12-15 04:22:48 +03:00
cgyarvin
commit
35417f4d60
@ -4930,6 +4930,194 @@
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=((scam bb ss) (ward u.rr (scam u.aa h)))
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::
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--
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::
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++ scr :: scrypt
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~% %scr + ~
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|%
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++ sal |= [x=@ r=@] :: salsa20 hash
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?> =((mod r 2) 0) :: with r rounds
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=+ few==>(fe .(a 5))
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=+ ^= rot
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|= [a=@ b=@]
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(mix (end 5 1 (lsh 0 a b)) (rsh 0 (sub 32 a) b))
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=+ ^= lea
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|= [a=@ b=@]
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(net:few (sum:few (net:few a) (net:few b)))
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=> |% ++ qr :: quarterround
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|= y=[@ @ @ @ ~]
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=+ zb=(mix &2.y (rot 7 (sum:few &1.y &4.y)))
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=+ zc=(mix &3.y (rot 9 (sum:few zb &1.y)))
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=+ zd=(mix &4.y (rot 13 (sum:few zc zb)))
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=+ za=(mix &1.y (rot 18 (sum:few zd zc)))
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~[za zb zc zd]
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++ rr :: rowround
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|= [y=(list ,@)]
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=+ za=(qr ~[&1.y &2.y &3.y &4.y])
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=+ zb=(qr ~[&6.y &7.y &8.y &5.y])
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=+ zc=(qr ~[&11.y &12.y &9.y &10.y])
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=+ zd=(qr ~[&16.y &13.y &14.y &15.y])
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^- (list ,@) :~
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&1.za &2.za &3.za &4.za
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&4.zb &1.zb &2.zb &3.zb
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&3.zc &4.zc &1.zc &2.zc
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&2.zd &3.zd &4.zd &1.zd
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==
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++ cr :: columnround
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|= [x=(list ,@)]
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=+ ^= y %- rr ^- (list ,@) :~
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&1.x &5.x &9.x &13.x
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&2.x &6.x &10.x &14.x
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&3.x &7.x &11.x &15.x
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&4.x &8.x &12.x &16.x
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==
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^- (list ,@) :~
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&1.y &5.y &9.y &13.y
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&2.y &6.y &10.y &14.y
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&3.y &7.y &11.y &15.y
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&4.y &8.y &12.y &16.y
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==
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++ dr :: doubleround
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|= [x=(list ,@)]
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(rr (cr x))
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++ al :: add two lists
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|= [a=(list ,@) b=(list ,@)]
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|- ^- (list ,@)
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?~ a ~ ?~ b ~
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[i=(sum:few -.a -.b) t=$(a +.a, b +.b)]
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--
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=+ xw=(rpp 5 16 x)
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=+ ^= ow |- ^- (list ,@)
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?~ r xw
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$(xw (dr xw), r (sub r 2))
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(rep 5 (al xw ow))
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::
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++ rpp |= [a=bloq b=@ c=@] :: rip w/filler blocks
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=+ q=(rip a c)
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=+ w=(lent q)
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?. =(w b)
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?. (lth w b) (slag (sub w b) q)
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^+ q (weld q (reap (sub b (lent q)) 0))
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q
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::
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++ xrl |= [a=(list ,@) b=(list ,@)] :: xor lists
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|- ^- (list ,@)
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?~ a b ?~ b a
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[i=(mix -.a -.b) t=$(a +.a, b +.b)]
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::
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++ xrm |= [a=(list (list ,@)) b=(list (list ,@))]
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|- ^- (list (list ,@))
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?~ a b ?~ b a
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[i=(xrl -.a -.b) t=$(a +.a, b +.b)]
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::
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++ bls |= [a=@ b=(list ,@)] :: split to sublists
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?> =((mod (lent b) a) 0)
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|- ^- (list (list ,@))
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?~ b ~
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[i=(scag a `(list ,@)`b) t=$(b (slag a `(list ,@)`b))]
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::
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++ slb |= [a=(list (list ,@))]
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|- ^- (list ,@)
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?~ a ~
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(weld `(list ,@)`-.a $(a +.a))
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::
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++ sbm |= [r=@ b=(list ,@)] :: scryptBlockMix
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?> =((lent b) (mul 2 r))
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=+ [x=(snag (dec (mul 2 r)) b) c=0]
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=| [ya=(list ,@) yb=(list ,@)]
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|- ^- (list ,@)
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?~ b (flop (weld yb ya))
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=. x (sal (mix x -.b) 8)
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?~ (mod c 2)
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$(c +(c), b +.b, ya [i=x t=ya])
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$(c +(c), b +.b, yb [i=x t=yb])
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::
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++ srm |= [r=@ b=(list ,@) n=@] :: scryptROMix
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?> ?&
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=((lent b) (mul 2 r))
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=(n (bex (dec (xeb n))))
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(lth n (bex (mul r 16)))
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==
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=| v=(list (list ,@))
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=+ c=0
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=. v
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|- ^- (list (list ,@))
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=+ w=(sbm r b)
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?: =(c n) (flop v)
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$(c +(c), v [i=[b] t=v], b w)
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=+ x=(sbm r (snag (dec n) v))
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|- ^- (list ,@)
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?: =(c n) x
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=+ q=(snag (dec (mul r 2)) x)
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$(x (sbm r (xrl x (snag (mod q n) v))), c +(c))
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::
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++ hmc |= [k=@ t=@] :: HMAC-SHA-256
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(hml k (met 3 k) t (met 3 t))
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::
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++ hml |= [k=@ kl=@ t=@ tl=@] :: w/length
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=. k (end 3 kl k) =. t (end 3 tl t)
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=+ b=64
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=. k ?. (gth kl b) k (shay kl k)
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=+ ^= q %+ shay (add b tl)
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(add (lsh 3 b t) (mix k (fil 3 b 0x36)))
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%+ shay (add b 32)
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(add (lsh 3 b q) (mix k (fil 3 b 0x5c)))
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::
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++ pbk ~/ %pbk :: PBKDF2-HMAC-SHA256
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|= [p=@ s=@ c=@ d=@]
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(pbl p (met 3 p) s (met 3 s) c d)
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::
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++ pbl ~/ %pbl :: w/length
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|= [p=@ pl=@ s=@ sl=@ c=@ d=@]
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=. p (end 3 pl p) =. s (end 3 sl s)
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=+ h=32
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?> ?& (lte d (bex 30)) :: max key length 1GB
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(lte c (bex 28)) :: max iterations 2^28
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!=(c 0)
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==
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=+ ^= l ?~ (mod d h)
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(div d h)
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+((div d h))
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=+ r=(sub d (mul h (dec l)))
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=+ [t=0 j=1 k=1]
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=. t |- ^- @
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?: (gth j l) t
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=+ u=(add s (lsh 3 sl (rep 3 (flop (rpp 3 4 j)))))
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=+ f=0 =. f |- ^- @
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?: (gth k c) f
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=+ q=(hml p pl u ?:(=(k 1) (add sl 4) h))
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$(u q, f (mix f q), k +(k))
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$(t (add t (lsh 3 (mul (dec j) h) f)), j +(j))
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(end 3 d t)
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::
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++ hsh ~/ %hsh :: scrypt
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|= [p=@ s=@ n=@ r=@ z=@ d=@]
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(hsl p (met 3 p) s (met 3 s) n r z d)
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::
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++ hsl ~/ %hsl :: w/length
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|= [p=@ pl=@ s=@ sl=@ n=@ r=@ z=@ d=@]
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=| v=(list (list ,@))
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=. p (end 3 pl p) =. s (end 3 sl s)
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=+ u=(mul (mul 128 r) z)
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?> ?& =(n (bex (dec (xeb n)))) :: n is power of 2
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!=(r 0) !=(z 0)
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%+ lte :: max 1GB memory
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(mul (mul 128 r) (dec (add n z)))
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(bex 30)
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(lth pl (bex 31))
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(lth sl (bex 31))
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==
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=+ ^= b =+ %^ rpp 3 u
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(pbl p pl s sl 1 u)
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%+ turn (bls (mul 128 r) -)
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|=(a=(list ,@) (rpp 9 (mul 2 r) (rep 3 a)))
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?> =((lent b) z)
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=+ ^= q
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=+ |- ?~ b (flop v)
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$(b +.b, v [i=(srm r -.b n) t=v])
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%+ turn `(list (list ,@))`-
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|=(a=(list ,@) (rpp 3 (mul 128 r) (rep 9 a)))
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(pbl p pl (rep 3 (slb q)) u 1 d)
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--
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::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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:: section 2eY, SHA-256 (move me) ::
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::
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