+ THisRt^RIt^RIHtRR.tRtRtRtRtR t R t R;s ;s ;s sR tR t]P"!R 4tRtRtRtRt]!^1RR4tRtRtRRltRRltR#)apasslib.crypto.des -- DES block encryption routines History ======= These routines (which have since been drastically modified for python) are based on a Java implementation of the des-crypt algorithm, found at ``_. The copyright & license for that source is as follows:: UnixCrypt.java 0.9 96/11/25 Copyright (c) 1996 Aki Yoshida. All rights reserved. Permission to use, copy, modify and distribute this software for non-commercial or commercial purposes and without fee is hereby granted provided that this copyright notice appears in all copies. --- Unix crypt(3C) utility @version 0.9, 11/25/96 @author Aki Yoshida --- modified April 2001 by Iris Van den Broeke, Daniel Deville --- Unix Crypt. Implements the one way cryptography used by Unix systems for simple password protection. @version $Id: UnixCrypt2.txt,v 1.1.1.1 2005/09/13 22:20:13 christos Exp $ @author Greg Wilkins (gregw) The netbsd des-crypt implementation has some nice notes on how this all works - http://fxr.googlebit.com/source/lib/libcrypt/crypt.c?v=NETBSD-CURRENT N)excexpand_des_keydes_encrypt_blockilll~}{wllsgc BRpRpRpW3W"3W"3W"3W3W"3W"3W!33sRsRsRsR#)z3delay loading tables until they are actually neededN))r r r r r $r r $r )rlll@l@l@l@lDlDlDlD)rr@r r@ r r@ r r@ r)r@l@llHlHll@l@lllHlH)rrrrr r!r"r#r$)rllllllllll)rrr*r+r,@r-Pr.@r/Pr0)r@ l@ @l l@  @ l l@  l@ l l@ )rrr8r9r:r;r<r=r>)rl@l@l@l@lll@l@l@l@)rr@rDrE@rFrG@rHrI@rJ)rllllllllll)rr@rPrQ@rRrS@rTrU@rV)rl l l l llll!l!l!l!)rrr[r\r]r^ r_ r` ra)rllll l"l l" l"l l"))rrrrrrrrrErErErE rgrgrg)rrGr[lri(l l(r*l l i i(l l( )rrrrr\r\r\r\r;r;r;r;ririri)rrrblrDlllr?llli@lll)rrrrrrrrr+r+r+r+@rjrjrj)rrSr ir8iir-i@i@i@i@i@i@i@)rrrrr9r9r9r9r^r^r^r^rlrlrl)rrri r!r"$i$rWll l lll$l$)rrQrKrdlllrZlllllll)rr%r2l rAl@l`l`rl l l@l@l`l`)rrPri@ rXl@l@l@@r&l@l@l@@ll@l@l@@)rr3r5r7rl0l0rel l l l l l 0l 0)rrLrlr(llr1l@@l@l@l@l@l@)rrYrO r@l ll rl(ll(ll(ll()rrrl@rMl@l@rrl@l@lll@l@)rr'rclrl@l@l@rBllllAlAlAlA))rrrrr r r r r9r9r9r9rururu)rr;rPi@rbl@l@rii@i@lll@l@)rrrrrQrQrQrQr-r-r-r-@rwrwrw)rrrWl@r8i ll@r^i l l @ii l l @)rrrrrrrrrrrr rxrxrx)rrGr\lr*rhl l r!illiil l )rrrrr+r+r+r+rSrSrSrSryryry)rrr[l@rrl@l@@rKi@ll@i i@ lAl@A)rrEr?i rYl l l rOlllrsl l l )rrr&r3rpllrlPl@lPl@lPl@lP)rrDri @rLll l rl@l @l @lBlBl Bl B)rr'r(r)rlrqlrZllllll)rr@rclrlllr%lllrolll)rrMrBlr2l!l l!rrtlll l!l l!)rrerl0rAl @l@l0@rdrfll0@l @l@l0@)rrrXr1l@l@l@r5l l(l(r6l@ l@(l@())rrnillllllllll)r  l @l Dl @l D@l @l Dl Dl@@l @Dl D@l DD)rr+rSryr*r,r^)rrAr1@@r3@r4@@rdr|@@@@@@@)rrrr r r r )rrBr@rCrrZr{)r@@ lD@ @i@@l@ lD@ @iD@l@ lDD iD@iDD@l@ lDD )rl l"l l"llll l"l l"))@@"rr @"r " rrr@  @ rrrrr@ "rrrrrrr @rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr)@@ r @@ @ rr@ r3r @ rr3r*@ rr rrrrrrrrr*rrrrrrrrrrrrr*rrrrrrrrrr3rrrrr*rrrr3rr)@@rdrrrrSrSrrrrdrrrrrrrrrrrrrdrSrrrrrrrrrrrrrSrrrrrrrrrrrrrrrdr)@@@@r@@r@@@@@@r+@@rrrr+@@rArrrrrArrrrrrrrrrrrrrrrrrrArrrrrAr+rrrrrrrrrrrrr+rr)@r~r1r@@@@r1r@r@rrr~rrrrrrrrrrrrrrrrrrrrr1rrrr~rrrrr~rrrrrrrrrrr1rrrrrrrr)@ @ r@rrB!r!@!@rnr @!rr@ rrBrrrrrrnrrrrrrrnrrrrrrrnrBrrrrrrrrrrrrrrrBrrrrrrr)@rrZ @ @ !@ rr^@ !@! r rrrrrrrrrr@  @!rrrrrZr^rrrrrrZr^rrrrrrZrrrrrrrrrrr^rrrrrrrr)@ @ @r @  @rrr@ @ @rr@rrrrrrrrrrrrr@rrrr@rrrrrrrrrrrrrrrrrrrrrrrrrrrrr@r))rr@rBrCrZrrrrrrrr{rrr)rrWrlrlllr&lllrzlll)rrrr rrrrrrrrrrrr)riiiiiiiiiiiiii)rr(rlr'r)llrOlllllll)rrer2l rl @l @l @rl @l @l @l@@l @@l @@l @@)rr8rKir;r<iirblllrvlll)rrQrGir9iiir?iiiiiii)rr1rArrdrr|rr3r4rrrrrr)rr\r[r]rXlllrlllr}lll)rrSr+ryr^rrrr*rr,rrrrr)riiiiiiiiiiiii)rrMr%lrLrNllrlrolllll)rrrclr5l l l rYl l l l l l l )rrrPi@@rDi@@i@@i@@@r-i@@i@@i@@@i@@i@@@i@@@i@@@@)rr!r irr"iirEiiiiiii)PCXROTIE3264SPECF6464)PC1ROTPC2ROTAPC2ROTBs 4/usr/lib/python3/dist-packages/passlib/crypto/des.py _load_tablesrIspaFN aGH aGb         F QFlQ CpaFcZ^pVF"pW#V^,,,pV^,pK$ V#)z`Returns the permutation of the given 32-bit or 64-bit code with the specified permutation table.)cpoutrs&& r_permuters3 C  Sz a Jrz>Qc,\PV4#)N_uint64_structpackvalues&r_pack64r!s   u %%rc:\PV4^,#)rrunpackrs&r _unpack64r%s   ' **rc:\PV4R,#):rNNrrs&r_pack56r's   u %b ))rcH\PRV,4^,#)r#rs&r _unpack56r*s  5 1! 44rca\S\4'd\S4^8wd \R4hMh\S\4'd;S^8g S\ 8d \R4h\ \\S444#\P!SRR4h\S4o\V3Rl\44#)zDconvert DES from 7 bytes to 8 bytes (by inserting empty parity bits)zkey must be 7 bytes in sizez'key must be 56-bit non-negative integer bytes or intkeyc3R<"TFpSV, ^,^,xK R#5i)Nr).0shiftr-s& r !expand_des_key..s"H<%3%<4'A--r>s#u s8q=:; ;~in566#s 7cK'FG G(##C??AIC F F 2+:&((  ! +%%& & Mrc\V\4'dD\V4^8Xd \V4pM\V4^8wd \ R4h\ V4pM\ P!VRR4h\V\4'd(\V4^8wd \ R4h\ V4pM\ P!VRR4h\WW#4p\V4#)aCencrypt single block of data using DES, operates on 8-byte strings. :arg key: DES key as 7 byte string, or 8 byte string with parity bits (parity bit values are ignored). :arg input: plaintext block to encrypt, as 8 byte string. :arg salt: Optional 24-bit integer used to mutate the base DES algorithm in a manner specific to :class:`~passlib.hash.des_crypt` and its variants. The default value ``0`` provides the normal (unsalted) DES behavior. The salt functions as follows: if the ``i``'th bit of ``salt`` is set, bits ``i`` and ``i+24`` are swapped in the DES E-box output. :arg rounds: Optional number of rounds of to apply the DES key schedule. the default (``rounds=1``) provides the normal DES behavior, but :class:`~passlib.hash.des_crypt` and its variants use alternate rounds values. :raises TypeError: if any of the provided args are of the wrong type. :raises ValueError: if any of the input blocks are the wrong size, or the salt/rounds values are out of range. :returns: resulting 8-byte ciphertext block. zkey must be 7 or 8 bytesr5r-zinput block must be 8 bytesinput) r4r5r6rr7r%rr:des_encrypt_int_blockr!)r-rCsaltroundsr@s&&&& rrrsB#u s8q= %C X]78 8n##C%88% u:?:; ;% ##E7G<<#3t ._iter_key_schedules:#MFv.Gg-FH$fx&77 7$sAAiiil*UUiUUUUl< ? Q rkZ 'UaZ:,E F Q  &!  'OGVr'Q$&AbA !G+A a2g%&R4'()R4'()R4'()R4'( ) R4'( ) R4'( )Q$'( Ar'Q$&AbA !F*A a2g%&R4'()R4'()R4'()R4'( ) R4'( ) R4'( )Q$'( A% '<1 q&& & G) ) + G) ) + F( ( * Av ri)rr)__doc__structpasslibr__all__rPr9r? _KDATA_MASK _KPARITY_MASKrIr r r r rrStructrr!r%r'r*ranger;rr>rrDrrrrhs%V    ! "  "&%%%#cL; t$&+*5RR I(,6rNr