# # This file is part of John the Ripper password cracker, # Copyright (c) 1996-2006,2008-2013 by Solar Designer # # Redistribution and use in source and binary forms, with or without # modification, are permitted. # # There's ABSOLUTELY NO WARRANTY, express or implied. # # Please note that although this configuration file is under the cut-down BSD # license above, many source files in John the Ripper are under GPLv2. # For licensing terms for John the Ripper as a whole, see doc/LICENSE. # # ...with changes in the jumbo patch, by various authors # # The [Options] section is for general options only. # Note that MPI specific options have been moved # to [Options.MPI] # There is also a new section [Options.OpenCL] # for OpenCL specific options # Default settings for Markov mode have been moved # to [Markov.Default], but you can define other # Markov modes as well, see ../doc/MARKOV [Options] # Default wordlist file name (including in batch mode) Wordlist = $JOHN/password.lst # Use idle cycles only Idle = Y # Crash recovery file saving delay in seconds Save = 60 # Beep when a password is found (who needs this anyway?) Beep = N # if set to Y then dynamic format will always work with bare hashes. Normally # dynamic only uses bare hashes if a single dynamic type is selected with # the -format= (so -format=dynamic_0 would use valid bare hashes). DynamicAlwaysUseBareHashes = N # Default Single mode rules SingleRules = Single # Default batch mode Wordlist rules BatchModeWordlistRules = Wordlist # Default wordlist mode rules when not in batch mode (if any) # If this is set and you want to run once without rules, use --rules:none #WordlistRules = Wordlist # Default loopback mode rules (if any) # If this is set and you want to run once without rules, use --rules:none LoopbackRules = Loopback # Default/batch mode Incremental mode # Warning: changing these might currently break resume on existing sessions DefaultIncremental = ASCII #DefaultIncrementalUTF8 = UTF8 DefaultIncrementalLM = LM_ASCII # Time formatting string used in status ETA. # # TimeFormat24 is used when ETA is within 24h, so it is possible to omit # the date then if you like, and show seconds instead. # # %c means 'local' specific canonical form, such as: # 05/06/11 18:10:34 # # Other examples # %d/%m/%y %H:%M (day/mon/year hour:min) # %m/%d/%y %H:%M (mon/day/year hour:min) # %Y-%m-%d %H:%M (ISO 8601 style, 2011-05-06 18:10) TimeFormat = %Y-%m-%d %H:%M TimeFormat24 = %H:%M:%S # For single mode, load the full GECOS field (before splitting) as one # additional candidate. Normal behavior is to only load individual words # from that field. Enabling this can help when this field contains email # addresses or other strings that are better used unsplit, but it increases # the number of words tried so it may also slow things down. If enabling this # you might want to bump SingleWordsPairMax too, below, to 10 or more. PristineGecos = N # Over-ride SINGLE_WORDS_PAIR_MAX in params.h. This may slow down Single mode # but it may also help cracking a few more candidates. Default in core John # is 4 while the Jumbo default is 6. SingleWordsPairMax = 6 # Emit a status line whenever a password is cracked (this is the same as # passing the --crack-status option flag to john). NOTE: if this is set # to true here, --crack-status will toggle it back to false. CrackStatus = N # When printing status, show number of candidates tried (eg. 123456p). Note # that the number *is* now equal to "words tried" and nothing else. # This is added to the "+ Cracked" line in the log as well. StatusShowCandidates = N # Write cracked passwords to the log file (default is just the user name) LogCrackedPasswords = N # Disable the dupe checking when loading hashes. For testing purposes only! NoLoaderDupeCheck = N # Default --encoding for input files (ie. login/GECOS fields) and wordlists # etc. If this is not set here (you need to uncomment it) and --encoding is # not used either, the default is ISO-8859-1 for Unicode conversions and 7-bit # ASCII encoding is assumed for rules - so eg. uppercasing of letters other # than a-z will not work at all! #DefaultEncoding = UTF-8 # Default --target-encoding for Microsoft hashes (LM, NETLM et al) when input # encoding is UTF-8. CP850 would be a universal choice for covering most # "Latin-1" countries. #DefaultMSCodepage = CP850 # Default --internal-encoding to be used by mask mode, and within the rules # engine when both input and "target" encodings are Unicode (eg. UTF-8 # wordlist and NT hashes). In some cases this hits performance but lets us # do things like case conversions for UTF-8. You can pick any supported # codepage that has as much support for the input data as possible - eg. for # "Latin-1" language passwords you can use ISO-8859-1, CP850 or CP1252 and it # will probably not make a difference. #DefaultInternalEncoding = CP1252 # Warn if seeing UTF-8 when expecting some other encoding, or vice versa. #WarnEncoding = Y # Always report (to screen and log) cracked passwords as UTF-8, regardless of # input encoding. This is recommended if you have your terminal set for UTF-8. #AlwaysReportUTF8 = Y # Always store Unicode (UTF-16) passwords as UTF-8 in john.pot, regardless # of input encoding. This prevents john.pot from being filled with mixed # and eventually unknown encodings. This is recommended if you have your # terminal set for UTF-8 and/or you want to run --loopback for LM->NT # including non-ASCII. #UnicodeStoreUTF8 = Y # Always report/store non-Unicode formats as UTF-8, regardless of input # encoding. Note: The actual codepage that was used is not stored anywhere # except in the log file. This is needed eg. for --loopback to crack LM->NT # including non-ASCII. #CPstoreUTF8 = Y # Default verbosity is 3, valid figures are 1-5 right now. # 4-5 enables some extra output # 2 mutes rules & incremental output in logs (LOTS of lines) # 1 even mutes printing (to screen) of cracked passwords Verbosity = 2 # If set to Y, do not output, log or store cracked passwords verbatim. # This implies a different default .pot database file "secure.pot" instead # of "john.pot" but it can still be overridden using --pot=FILE. # This also overrides other options, eg. LogCrackedPasswords. SecureMode = N # If set to Y, a session using --fork or MPI will signal to other nodes when # it has written cracks to the pot file (note that this writing is delayed # by buffers and the "Save" timer above), so they will re-sync. ReloadAtCrack = Y # If set to Y, resync pot file when saving session. ReloadAtSave = Y # If this file exists, john will abort cleanly AbortFile = /var/run/john/abort # While this file exists, john will pause PauseFile = /var/run/john/pause [Options:MPI] # Automagically disable OMP if MPI is used (set to N if # you want to run one MPI process per multi-core host) MPIOMPmutex = Y # Print a notice if disabling OMP (when MPIOMPmutex = Y) # or when running OMP and MPI at the same time MPIOMPverbose = Y # These formats come disabled because of problems with many drivers. Even # when disabled, you can use them as long as you spell them out with the # --format option. Or you can delete a line, comment it out, or change to 'N' [Disabled:Formats] DEScrypt-opencl = N # Options that affect both CUDA and OpenCL: [Options:GPU] # Show GPU temperature, fan and utilization along with normal status output SensorsStatus = Y # Abort session if GPU hits this temperature (in C) AbortTemperature = 95 [Options:OpenCL] # Set default OpenCL platform and/or device. Command line options will # override these. If neither is set, we will search for a GPU or fall-back # to platform 0, device 0. #Platform = 0 #Device = 0 # Global max. single kernel invocation duration, in ms. Setting this low # (eg. 10-100 ms) gives you a better responding desktop but lower performance. # Setting it high (eg. 200-500 ms) will maximize performance but your desktop # may lag. Really high values may trip watchdogs (eg. 5 seconds). Some versions # of AMD Catalyst may hang if you go above 200 ms, and in general any good # kernel will perform optimally at 100-200 ms anyway. #Global_MaxDuration = 200 # Some formats vectorize their kernels in case the device says it's a good # idea. Some devices give "improper" hints which means we vectorize but get # a performance drop. If you have such a device, uncommenting the below # will disable vectorizing globally. # With this set to N (or commented out) you can force it per session with # the --force-scalar command-line option instead. #ForceScalar = Y # Global build options. Format-specific build options below may be # concatenated to this. GlobalBuildOpts = -cl-mad-enable # Format-specific settings: # Uncomment the below for nvidia sm_30 and beyond #sha512crypt_BuildOpts = -cl-nv-maxrregcount=80 # Example: Override auto-tune for RAR format. #rar_LWS = 128 #rar_GWS = 8192 # Markov modes, see ../doc/MARKOV for more information [Markov:Default] # Default Markov mode settings # # Statsfile cannot be specified on the command line, so # specifying it here is mandatory Statsfile = $JOHN/stats # MkvLvl and MkvMaxLen should also be specified here, as a fallback for # --markov usage without specifying LEVEL and/or LENGTH on the command line MkvLvl = 200 MkvMaxLen = 12 # MkvMinLvl and MkvMinLen should not be specified at all in [Markov:Default], # or they should be equal to 0 (which is the default if not specified. # MkvMinLvl and MkvMinLen can be used in other Markov mode sections # except [Markov:Default] ; MkvMinLvl = 0 ; MkvMinLen = 0 # A user defined character class is named with a single digit, ie. 0..9. After # the equal-sign, just list all characters that this class should match. You # can specify ranges within brackets, much like pre-processor ranges in rules. # BEWARE of encoding if using non-ASCII characters. If you put UTF-8 characters # here, it will *not* work! You must use a singlebyte encoding and it should # be the same here as you intend to use for your dictionary. # You can however put characters here in \xA3 format (for codepoint 0xA3 - in # many iso-8859 codepages that would mean a pound sign). This works in ranges # too. Using \x00 is not supported though - it will not be parsed as null. # # This is a couple of example classes: # ?0 matches (one version of) base64 characters # ?1 matches hex digits # ?2 matches the TAB character (never try to use \x00!) [UserClasses] 0 = [a-zA-Z0-9/.] 1 = [0-9a-fA-F] 2 = \x09 [Mask] # Default mask for -mask if none is given. This is same as Hashcat's default. DefaultMask = ?1?2?2?2?2?2?2?3?3?3?3?d?d?d?d # Default mask for Hybrid mask mode if none is given. DefaultHybridMask = ?w?d?d?d?d # Mask mode have custom placeholders ?1..?9 that look similar to user classes # but are a different thing. They are merely defaults for the -1..-9 command # line options. As delivered, they resemble Hashcat's defaults. 1 = ?l?d?u 2 = ?l?d 3 = ?l?d*!$@_ 4 = 5 = 6 = 7 = 8 = 9 = # these are user defined character sets. There purpose is to allow custom salt # values to be used within the salt_regen logic. These will be the characters # to use for this character within the salt. So if we had a salt that was 4 # characters, and 0-9a-m, we can easily do this by 0 = [0-9a-m] If this is used, # the regen salt value would be ?0?0?0?0 and salts such as a47m 2kd5 would be valid. [Regen_Salts_UserClasses] 1 = [1-9] # A "no rules" rule for super fast Single mode (use with --single=none) [List.Rules:None] : # A "drop all" rule for even faster Single mode (debugging :) [List.Rules:Drop] <1'0 # "Single crack" mode rules [List.Rules:Single] # Simple rules come first... : -s x** -c (?a c Q -c l Q -s-c x** /?u l # These were not included in crackers I've seen, but are pretty efficient, # so I include them near the beginning -<6 >6 '6 -<7 >7 '7 l -<6 -c >6 '6 /?u l -<5 >5 '5 # Weird order, eh? Can't do anything about it, the order is based on the # number of successful cracks... <* d r c -c <* (?a d c -<5 -c >5 '5 /?u l -c u Q -c )?a r l -[:c] <* !?A \p1[lc] p -c <* c Q d -<7 -c >7 '7 /?u -<4 >4 '4 l -c <+ (?l c r -c <+ )?l l Tm -<3 >3 '3 -<4 -c >4 '4 /?u -<3 -c >3 '3 /?u l -c u Q r <* d M 'l f Q -c <* l Q d M 'l f Q # About 50% of single-mode-crackable passwords get cracked by now... # >2 x12 ... >8 x18 >[2-8] x1\1 >9 \[ # >3 x22 ... >9 x28 >[3-9] x2\p[2-8] # >4 x32 ... >9 x37 >[4-9] x3\p[2-7] # >2 x12 /?u l ... >8 x18 /?u l -c >[2-8] x1\1 /?u l -c >9 \[ /?u l # >3 x22 /?u l ... >9 x28 /?u l -c >[3-9] x2\p[2-8] /?u l # >4 x32 /?u l ... >9 x37 /?u l -c >[4-9] x3\p[2-7] /?u l # Now to the suffix stuff... <* l $[1-9!0a-rt-z"-/:-@\[-`{-~] -c <* (?a c $[1-9!0a-rt-z"-/:-@\[-`{-~] -[:c] <* !?A (?\p1[za] \p1[lc] $s M 'l p Q X0z0 'l $s -[:c] <* /?A (?\p1[za] \p1[lc] $s <* l r $[1-9!] -c <* /?a u $[1-9!] -[:c] <- (?\p1[za] \p1[lc] Az"'s" -[:c] <- (?\p1[za] \p1[lc] Az"!!" -[:c] (?\p1[za] \p1[lc] $! <- Az"!!" # Removing vowels... -[:c] /?v @?v >2 (?\p1[za] \p1[lc] /?v @?v >2 <* d # crack -> cracked, crack -> cracking <* l [PI] -c <* l [PI] (?a c # mary -> marie -[:c] <* (?\p1[za] \p1[lc] )y omi $e # marie -> mary -[:c] <* (?\p1[za] \p1[lc] )e \] )i val1 oay # The following are some 3l33t rules -[:c] l /[aelos] s\0\p[4310$] (?\p1[za] \p1[:c] -[:c] l /a /[elos] sa4 s\0\p[310$] (?\p1[za] \p1[:c] -[:c] l /e /[los] se3 s\0\p[10$] (?\p1[za] \p1[:c] -[:c] l /l /[os] sl1 s\0\p[0$] (?\p1[za] \p1[:c] -[:c] l /o /s so0 ss$ (?\p1[za] \p1[:c] -[:c] l /a /e /[los] sa4 se3 s\0\p[10$] (?\p1[za] \p1[:c] -[:c] l /a /l /[os] sa4 sl1 s\0\p[0$] (?\p1[za] \p1[:c] -[:c] l /a /o /s sa4 so0 ss$ (?\p1[za] \p1[:c] -[:c] l /e /l /[os] se3 sl1 s\0\p[0$] (?\p1[za] \p1[:c] -[:c] l /[el] /o /s s\0\p[31] so0 ss$ (?\p1[za] \p1[:c] -[:c] l /a /e /l /[os] sa4 se3 sl1 s\0\p[0$] (?\p1[za] \p1[:c] -[:c] l /a /[el] /o /s sa4 s\0\p[31] so0 ss$ (?\p1[za] \p1[:c] -[:c] l /e /l /o /s se3 sl1 so0 ss$ (?\p1[za] \p1[:c] -[:c] l /a /e /l /o /s sa4 se3 sl1 so0 ss$ (?\p1[za] \p1[:c] # Now to the prefix stuff... l ^[1a-z2-90] -c l Q ^[A-Z] ^[A-Z] l ^["-/:-@\[-`{-~] -[:c] <9 (?a \p1[lc] A0"[tT]he" -[:c] <9 (?a \p1[lc] A0"[aA]my" -[:c] <9 (?a \p1[lc] A0"[mdMD]r" -[:c] <9 (?a \p1[lc] A0"[mdMD]r." -[:c] <9 (?a \p1[lc] A0"__" <- !?A l p ^[240-9] # Some word pair rules... # johnsmith -> JohnSmith, johnSmith -p-c (?a 2 (?a c 1 [cl] # JohnSmith -> john smith, john_smith, john-smith -p 1 <- $[ _\-] + l # JohnSmith -> John smith, John_smith, John-smith -p-c 1 <- (?a c $[ _\-] 2 l # JohnSmith -> john Smith, john_Smith, john-Smith -p-c 1 <- l $[ _\-] 2 (?a c # johnsmith -> John Smith, John_Smith, John-Smith -p-c 1 <- (?a c $[ _\-] 2 (?a c # Applying different simple rules to each of the two words -p-[c:] 1 \p1[ur] 2 l -p-c 2 (?a c 1 [ur] -p-[c:] 1 l 2 \p1[ur] -p-c 1 (?a c 2 [ur] # jsmith -> smithj, etc... -[:c] (?a \p1[lc] [{}] -[:c] (?a \p1[lc] [{}] \0 # Toggle case... -c <+ )?u l Tm -c T0 Q M c Q l Q u Q C Q X0z0 'l -c T[1-9A-E] Q M l Tm Q C Q u Q l Q c Q X0z0 'l -c l Q T[1-9A-E] Q M T\0 Q l Tm Q C Q u Q X0z0 'l -c >2 2 /?l /?u t Q M c Q C Q l Tm Q X0z0 'l # Deleting chars... >[2-8] D\p[1-7] >[8-9A-E] D\1 -c /?u >[2-8] D\p[1-7] l -c /?u >[8-9A-E] D\1 l =1?a \[ M c Q -c (?a >[1-9A-E] D\1 c # Inserting a dot... -[:c] >3 (?a \p1[lc] i[12]. # More suffix stuff... <- l Az"[190][0-9]" -c <- (?a c Az"[190][0-9]" <- l Az"[782][0-9]" -c <- (?a c Az"[782][0-9]" <* l $[A-Z] -c <* (?a c $[A-Z] # cracking -> CRACKiNG -c u /I sIi # Crack96 -> cRACK96 %2?a C Q # Crack96 -> cRACK(^ /?A S Q # Crack96 -> CRaCK96 -c /?v V Q # Really weird charset conversions, like "england" -> "rmh;smf" :[RL] Q l Q [RL] -c (?a c Q [RL] :[RL] \0 Q # Both prefixing and suffixing... <- l ^[1!@#$%^&*\-=_+.?|:'"] $\1 <- l ^[({[<] $\p[)}\]>] # The rest of two-digit suffix stuff, less common numbers... <- l Az"[63-5][0-9]" -c <- (?a c Az"[63-5][0-9]" # Some multi-digit numbers... -[:c] (?a \p1[lc] Az"007" <+ -[:c] (?a \p1[lc] Az"123" <+ -[:c] (?a \p1[lc] Az"[0-9]\0\0" <+ -[:c] (?a \p1[lc] Az"1234" <+ -[:c] (?a \p1[lc] Az"[0-9]\0\0\0" <+ -[:c] (?a \p1[lc] Az"12345" <+ -[:c] (?a \p1[lc] Az"[0-9]\0\0\0\0" <+ -[:c] (?a \p1[lc] Az"123456" <+ -[:c] (?a \p1[lc] Az"[0-9]\0\0\0\0\0" <+ # Some [birth] years... l Az"19[7-96-0]" <+ >- l Az"20[01]" <+ >- l Az"19[7-9][0-9]" <+ l Az"20[01][0-9]" <+ l Az"19[6-0][9-0]" <+ [List.Rules:Extra] # Insert/overstrike some characters... !?A >[1-6] l i\0[a-z] !?A l o0[a-z] !?A >[1-7] l o\0[a-z] # Toggle case everywhere (up to length 8), assuming that certain case # combinations were already tried. -c T1 Q M T0 Q -c T2 Q M T[z0] T[z1] Q -c T3 Q M T[z0] T[z1] T[z2] Q -c T4 Q M T[z0] T[z1] T[z2] T[z3] Q -c T5 Q M T[z0] T[z1] T[z2] T[z3] T[z4] Q -c T6 Q M T[z0] T[z1] T[z2] T[z3] T[z4] T[z5] Q -c T7 Q M T[z0] T[z1] T[z2] T[z3] T[z4] T[z5] T[z6] Q # Very slow stuff... l Az"[1-90][0-9][0-9]" <+ -c (?a c Az"[1-90][0-9][0-9]" <+ <[\-9] l A\p[z0]"[a-z][a-z]" <- l ^[a-z] $[a-z] # Wordlist mode rules [List.Rules:Wordlist] # Try words as they are : # Lowercase every pure alphanumeric word -c >3 !?X l Q # Capitalize every pure alphanumeric word -c (?a >2 !?X c Q # Lowercase and pluralize pure alphabetic words <* >2 !?A l p # Lowercase pure alphabetic words and append '1' <* >2 !?A l $1 # Capitalize pure alphabetic words and append '1' -c <* >2 !?A c $1 # Duplicate reasonably short pure alphabetic words (fred -> fredfred) <7 >1 !?A l d # Lowercase and reverse pure alphabetic words >3 !?A l M r Q # Prefix pure alphabetic words with '1' >2 !?A l ^1 # Uppercase pure alphanumeric words -c >2 !?X u Q M c Q u # Lowercase pure alphabetic words and append a digit or simple punctuation <* >2 !?A l $[2!37954860.?] # Words containing punctuation, which is then squeezed out, lowercase /?p @?p >3 l # Words with vowels removed, lowercase /?v @?v >3 l # Words containing whitespace, which is then squeezed out, lowercase /?w @?w >3 l # Capitalize and duplicate short pure alphabetic words (fred -> FredFred) -c <7 >1 !?A c d # Capitalize and reverse pure alphabetic words (fred -> derF) -c <+ >2 !?A c r # Reverse and capitalize pure alphabetic words (fred -> Derf) -c >2 !?A l M r Q c # Lowercase and reflect pure alphabetic words (fred -> fredderf) <7 >1 !?A l d M 'l f Q # Uppercase the last letter of pure alphabetic words (fred -> freD) -c <+ >2 !?A l M r Q c r # Prefix pure alphabetic words with '2' or '4' >2 !?A l ^[24] # Capitalize pure alphabetic words and append a digit or simple punctuation -c <* >2 !?A c $[2!3957468.?0] # Prefix pure alphabetic words with digits >2 !?A l ^[379568] # Capitalize and pluralize pure alphabetic words of reasonable length -c <* >2 !?A c p # Lowercase/capitalize pure alphabetic words of reasonable length and convert: # crack -> cracked, crack -> cracking -[:c] <* >2 !?A \p1[lc] M [PI] Q # Try the second half of split passwords -s x** -s-c x** M l Q # Case toggler for cracking MD4-based NTLM hashes (with the contributed patch) # given already cracked DES-based LM hashes. # Use --rules=NT to use this [List.Rules:NT] : -c T0Q -c T1QT[z0] -c T2QT[z0]T[z1] -c T3QT[z0]T[z1]T[z2] -c T4QT[z0]T[z1]T[z2]T[z3] -c T5QT[z0]T[z1]T[z2]T[z3]T[z4] -c T6QT[z0]T[z1]T[z2]T[z3]T[z4]T[z5] -c T7QT[z0]T[z1]T[z2]T[z3]T[z4]T[z5]T[z6] -c T8QT[z0]T[z1]T[z2]T[z3]T[z4]T[z5]T[z6]T[z7] -c T9QT[z0]T[z1]T[z2]T[z3]T[z4]T[z5]T[z6]T[z7]T[z8] -c TAQT[z0]T[z1]T[z2]T[z3]T[z4]T[z5]T[z6]T[z7]T[z8]T[z9] -c TBQT[z0]T[z1]T[z2]T[z3]T[z4]T[z5]T[z6]T[z7]T[z8]T[z9]T[zA] -c TCQT[z0]T[z1]T[z2]T[z3]T[z4]T[z5]T[z6]T[z7]T[z8]T[z9]T[zA]T[zB] -c TDQT[z0]T[z1]T[z2]T[z3]T[z4]T[z5]T[z6]T[z7]T[z8]T[z9]T[zA]T[zB]T[zC] # Used for loopback. This rule will produce candidates "PASSWOR" and "D" for # an input of "PASSWORD" (assuming LM, which has halves of length 7). [List.Rules:Split] : -s x** # Some Office <=2003 files have passwords truncated at 15 [List.Rules:OldOffice] : ->F>F'F # Rules from Hash Runner 2014 [List.Rules:o1] o[0-9A-Z][ -~] [List.Rules:o2] o[0-9A-E][ -~] Q M o[0-9A-E][ -~] Q [List.Rules:o3] o[0-9][ -~] Q M o[0-9][ -~] Q M o[0-9][ -~] Q [List.Rules:o] o[0-9A-Z][ -~] o[0-9A-E][ -~] Q M o[0-9A-E][ -~] Q [List.Rules:i1] i[0-9A-Z][ -~] [List.Rules:i2] i[0-9A-E][ -~] i[0-9A-E][ -~] [List.Rules:i3] i[0-9][ -~] i[0-9][ -~] i[0-9][ -~] [List.Rules:i] i[0-9A-Z][ -~] i[0-9A-E][ -~] i[0-9A-E][ -~] [List.Rules:oi] o[0-9A-Z][ -~] i[0-9A-Z][ -~] o[0-9A-E][ -~] Q M o[0-9A-E][ -~] Q i[0-9A-E][ -~] i[0-9A-E][ -~] int i, j, s, next, nextp, val, bucket, randnum, used_charsets; int seedarray[56]; int candidate[32]; /* This needs to be at-least as big as password-length */ seed = 0; while(seed > 0) { /* BEGIN System.Random(seed) */ s = 161803398 - seed++; seedarray[55] = s; i = val = 1; while(i < 55) { bucket = 21 * i % 55; seedarray[bucket] = val; val = s - val; if(val < 0) val += 2147483647; s = seedarray[bucket]; i++; } i = 1; while(i < 5) { j = 1; while(j < 56) { seedarray[j] -= seedarray[1 + (j + 30) % 55]; if(seedarray[j] < 0) seedarray[j] += 2147483647; j++; } i++; } next = 0; nextp = 21; /* END System.Random(seed) */ used_charsets = 0; while(used_charsets != 15) { i = 0; while(i < password_length) { /* BEGIN Random.Sample() */ if (++next >= 56) next = 1; if (++nextp >= 56) nextp = 1; randnum = seedarray[next] - seedarray[nextp]; if (randnum == 2147483647) randnum--; if (randnum < 0) randnum += 2147483647; seedarray[next] = randnum; /* END Random.Sample() */ j = 0; while(boundaries_charclass[j] < randnum) j++; candidate[i] = j; used_charsets |= (1 << j); i++; } } i = 0; while(i < password_length) { /* BEGIN Random.Sample() */ if (++next >= 56) next = 1; if (++nextp >= 56) nextp = 1; randnum = seedarray[next] - seedarray[nextp]; if (randnum == 2147483647) randnum--; if (randnum < 0) randnum += 2147483647; seedarray[next] = randnum; /* END Random.Sample() */ j = 0; if(candidate[i] == 0) { while(boundaries_letters[j] < randnum) j++; if(lowers[j] != word[i++]) break; } else if (candidate[i] == 1) { while(boundaries_letters[j] < randnum) j++; if(uppers[j] != word[i++]) break; } else if (candidate[i] == 2) { while(boundaries_numbers[j] < randnum) j++; if(numbers[j] != word[i++]) break; } else { /* if (word[i] == 3) */ while(boundaries_symbols[j] < randnum) j++; if(symbols[j] != word[i++]) break; } } if(i == password_length) return; } } # Try sequences of adjacent keys on a keyboard as candidate passwords [List.External:Keyboard] int maxlength, length; // Maximum password length to try, current length int fuzz; // The desired "fuzz factor", either 0 or 1 int id[15]; // Current character indices for each position int m[0x800]; // The keys matrix int mc[0x100]; // Counts of adjacent keys int f[0x40], fc; // Characters for the first position, their count void init() { int minlength; int i, j, c, p; int k[0x40]; // Initial password length to try if (req_minlen) minlength = req_minlen; else minlength = 1; if (req_maxlen) maxlength = req_maxlen; else maxlength = cipher_limit; // the format's limit fuzz = 1; // "Fuzz factor", set to 0 for much quicker runs /* * This defines the keyboard layout, by default for a QWERTY keyboard. */ i = 0; while (i < 0x40) k[i++] = 0; k[0] = '`'; i = 0; while (++i <= 9) k[i] = '0' + i; k[10] = '0'; k[11] = '-'; k[12] = '='; k[0x11] = 'q'; k[0x12] = 'w'; k[0x13] = 'e'; k[0x14] = 'r'; k[0x15] = 't'; k[0x16] = 'y'; k[0x17] = 'u'; k[0x18] = 'i'; k[0x19] = 'o'; k[0x1a] = 'p'; k[0x1b] = '['; k[0x1c] = ']'; k[0x1d] = '\\'; k[0x21] = 'a'; k[0x22] = 's'; k[0x23] = 'd'; k[0x24] = 'f'; k[0x25] = 'g'; k[0x26] = 'h'; k[0x27] = 'j'; k[0x28] = 'k'; k[0x29] = 'l'; k[0x2a] = ';'; k[0x2b] = '\''; k[0x31] = 'z'; k[0x32] = 'x'; k[0x33] = 'c'; k[0x34] = 'v'; k[0x35] = 'b'; k[0x36] = 'n'; k[0x37] = 'm'; k[0x38] = ','; k[0x39] = '.'; k[0x3a] = '/'; i = 0; while (i < 0x100) mc[i++] = 0; fc = 0; /* rows */ c = 0; i = 0; while (i < 0x40) { p = c; c = k[i++] & 0xff; if (!c) continue; f[fc++] = c; if (!p) continue; m[(c << 3) + mc[c]++] = p; m[(p << 3) + mc[p]++] = c; } f[fc] = 0; /* columns */ i = 0; while (i < 0x30) { p = k[i++] & 0xff; if (!p) continue; j = 1 - fuzz; while (j <= 1 + fuzz) { c = k[i + 0x10 - j++] & 0xff; if (!c) continue; m[(c << 3) + mc[c]++] = p; m[(p << 3) + mc[p]++] = c; } } length = 0; while (length < minlength) id[length++] = 0; } void generate() { int i, p, maxcount; word[i = 0] = p = f[id[0]]; while (++i < length) word[i] = p = m[(p << 3) + id[i]]; word[i--] = 0; if (i) maxcount = mc[word[i - 1]]; else maxcount = fc; while (++id[i] >= maxcount) { if (!i) { if (length < maxlength) { id[0] = 0; id[length++] = 0; } return; } id[i--] = 0; if (i) maxcount = mc[word[i - 1]]; else maxcount = fc; } } void restore() { int i; /* Calculate the length */ length = 0; while (word[length]) id[length++] = 0; /* Infer the first character index */ i = -1; while (++i < fc) { if (f[i] == word[0]) { id[0] = i; break; } } /* This sample can be enhanced to infer the rest of the indices here */ } # Simplest (fastest?) possible dumb exhaustive search, demonstrating a # mode that does not need any special restore() handling. # Defaults to printable ASCII. [List.External:DumbDumb] int maxlength; // Maximum password length to try int startchar, endchar; // Range of characters (inclusive) void init() { int i; startchar = ' '; // Start with space endchar = '~'; // End with tilde // Create first word, honoring --min-len if (!(i = req_minlen)) i++; word[i] = 0; while (i--) word[i] = startchar; word[0] = startchar - 1; if (req_maxlen) maxlength = req_maxlen; // --max-len else maxlength = cipher_limit; // format's limit } void generate() { int i; if (++word <= endchar) return; i = 0; while (word[i] > endchar) { word[i++] = startchar; if (!word[i]) { word[i] = startchar; word[i + 1] = 0; } else word[i]++; } if (i >= maxlength) word = 0; } /* * This mode will resume correctly without any restore handing. * The empty function just confirms to John that everything is in order. */ void restore() { } # Generic implementation of "dumb" exhaustive search, given a range of lengths # and an arbitrary charset. This is pre-configured to try 8-bit characters # against LM hashes, which is only reasonable to do for very short password # half lengths. [List.External:DumbForce] int maxlength; // Maximum password length to try int last; // Last character position, zero-based int lastid; // Character index in the last position int id[0x7f]; // Current character indices for other positions int charset[0x100], c0; // Character set void init() { int minlength; int i, c; // Initial password length to try, must be at least 1 if (req_minlen) minlength = req_minlen; else minlength = 1; if (req_maxlen) maxlength = req_maxlen; else maxlength = cipher_limit; // the format's limit /* * This defines the character set. * * Let's say, we want to try TAB, all non-control ASCII characters, and all * 8-bit characters, including the 8-bit terminal controls range (as these are * used as regular national characters with some 8-bit encodings), but except * for known terminal controls (risky for the terminal we may be running on). * * Also, let's say our hashes are case-insensitive, so skip lowercase letters * (this is right for LM hashes). */ i = 0; charset[i++] = 9; // Add horizontal TAB (ASCII 9), then c = ' '; // start with space (ASCII 32) and while (c < 'a') // proceed till lowercase 'a' charset[i++] = c++; c = 'z' + 1; // Skip lowercase letters and while (c <= 0x7e) // proceed for all printable ASCII charset[i++] = c++; c++; // Skip DEL (ASCII 127) and while (c < 0x84) // proceed over 8-bit codes till IND charset[i++] = c++; charset[i++] = 0x86; // Skip IND (84 hex) and NEL (85 hex) charset[i++] = 0x87; c = 0x89; // Skip HTS (88 hex) while (c < 0x8d) // Proceed till RI (8D hex) charset[i++] = c++; c = 0x91; // Skip RI, SS2, SS3, DCS while (c < 0x96) // Proceed till SPA (96 hex) charset[i++] = c++; charset[i++] = 0x99; // Skip SPA, EPA, SOS c = 0xa0; // Skip DECID, CSI, ST, OSC, PM, APC while (c <= 0xff) // Proceed with the rest of 8-bit codes charset[i++] = c++; /* Zero-terminate it, and cache the first character */ charset[i] = 0; c0 = charset[0]; last = minlength - 1; i = 0; while (i <= last) { id[i] = 0; word[i++] = c0; } lastid = -1; word[i] = 0; } void generate() { int i; /* Handle the typical case specially */ if (word[last] = charset[++lastid]) return; lastid = 0; word[i = last] = c0; while (i--) { // Have a preceding position? if (word[i] = charset[++id[i]]) return; id[i] = 0; word[i] = c0; } if (++last < maxlength) { // Next length? id[last] = lastid = 0; word[last] = c0; word[last + 1] = 0; } else // We're done word = 0; } void restore() { int i, c; /* Calculate the current length and infer the character indices */ last = 0; while (c = word[last]) { i = 0; while (charset[i] != c && charset[i]) i++; if (!charset[i]) i = 0; // Not found id[last++] = i; } lastid = id[--last]; } # Generic implementation of exhaustive search for a partially-known password. # This is pre-configured for length 8, lowercase and uppercase letters in the # first 4 positions (52 different characters), and digits in the remaining 4 # positions - however, the corresponding part of init() may be modified to use # arbitrary character sets or even fixed characters for each position. [List.External:KnownForce] int last; // Last character position, zero-based int lastofs; // Last character position offset into charset[] int lastid; // Current character index in the last position int id[0x7f]; // Current character indices for other positions int charset[0x7f00]; // Character sets, 0x100 elements for each position void init() { int length, maxlength; int pos, ofs, i, c; if (req_minlen) length = req_minlen; else length = 8; // Password length to try (NOTE: other [eg. shorter] // lengths will not be tried!) if (req_maxlen) maxlength = req_maxlen; else maxlength = cipher_limit; // the format's limit /* This defines the character sets for different character positions */ if (length > maxlength) length = maxlength; pos = 0; while (pos < 4) { ofs = pos++ << 8; i = 0; c = 'a'; while (c <= 'z') charset[ofs + i++] = c++; c = 'A'; while (c <= 'Z') charset[ofs + i++] = c++; charset[ofs + i] = 0; } while (pos < length) { ofs = pos++ << 8; i = 0; c = '0'; while (c <= '9') charset[ofs + i++] = c++; charset[ofs + i] = 0; } last = length - 1; pos = -1; while (++pos <= last) word[pos] = charset[id[pos] = pos << 8]; lastid = (lastofs = last << 8) - 1; word[pos] = 0; } void generate() { int pos; /* Handle the typical case specially */ if (word[last] = charset[++lastid]) return; word[pos = last] = charset[lastid = lastofs]; while (pos--) { // Have a preceding position? if (word[pos] = charset[++id[pos]]) return; word[pos] = charset[id[pos] = pos << 8]; } word = 0; // We're done } void restore() { int i, c; /* Calculate the current length and infer the character indices */ last = 0; while (c = word[last]) { i = lastofs = last << 8; while (charset[i] != c && charset[i]) i++; if (!charset[i]) i = lastofs; // Not found id[last++] = i; } lastid = id[--last]; } # A variation of KnownForce configured to try likely date and time strings. [List.External:DateTime] int last; // Last character position, zero-based int lastofs; // Last character position offset into charset[] int lastid; // Current character index in the last position int id[0x7f]; // Current character indices for other positions int charset[0x7f00]; // Character sets, 0x100 elements for each position void init() { int length; int pos, ofs, i, c; length = 8; // Must be one of: 4, 5, 7, 8 /* This defines the character sets for different character positions */ pos = 0; while (pos < length - 6) { ofs = pos++ << 8; i = 0; c = '0'; while (c <= '9') charset[ofs + i++] = c++; charset[ofs + i] = 0; } if (pos) { ofs = pos++ << 8; charset[ofs] = '/'; charset[ofs + 1] = '.'; charset[ofs + 2] = ':'; charset[ofs + 3] = 0; } while (pos < length - 3) { ofs = pos++ << 8; i = 0; c = '0'; while (c <= '9') charset[ofs + i++] = c++; charset[ofs + i] = 0; } ofs = pos++ << 8; charset[ofs] = '/'; charset[ofs + 1] = '.'; charset[ofs + 2] = ':'; charset[ofs + 3] = 0; while (pos < length) { ofs = pos++ << 8; i = 0; c = '0'; while (c <= '9') charset[ofs + i++] = c++; charset[ofs + i] = 0; } last = length - 1; pos = -1; while (++pos <= last) word[pos] = charset[id[pos] = pos << 8]; lastid = (lastofs = last << 8) - 1; word[pos] = 0; } void generate() { int pos; /* Handle the typical case specially */ if (word[last] = charset[++lastid]) return; word[pos = last] = charset[lastid = lastofs]; while (pos--) { // Have a preceding position? if (word[pos] = charset[++id[pos]]) return; word[pos] = charset[id[pos] = pos << 8]; } word = 0; // We're done } void restore() { int i, c; /* Calculate the current length and infer the character indices */ last = 0; while (c = word[last]) { i = lastofs = last << 8; while (charset[i] != c && charset[i]) i++; if (!charset[i]) i = lastofs; // Not found id[last++] = i; } lastid = id[--last]; } # Try strings of repeated characters. # # This is the code which is common for all [List.External:Repeats*] # sections which include this External_base section. # The generate() function will limit the maximum length of generated # candidates to either the format's limit (maximum password length) # or to the limit specified with --stdout=LENGTH (Default: 125), # thus avoiding duplicate candidates for formats with limited maximum # passwortd length. # The comparison of the current length and the limit is only done # after switching to a new length. # So, if the minimum length specified already exceeds this limit, # then all the candidates for the minimum length will be generated # nevertheless. [List.External_base:Repeats] int minlength, maxlength, minc, maxc, length, c; void generate() { int i; i = 0; while (i < length) word[i++] = c; word[i] = 0; if (c++ < maxc) return; c = minc; if (++length > maxlength) c = 0; // Will NUL out the next "word" and thus terminate } # Try strings of repeated characters (range: space - 0xff). [List.External:Repeats] .include [List.External_base:Repeats] void init() { if (req_minlen) minlength = req_minlen; else minlength = 1; if (req_maxlen) maxlength = req_maxlen; else maxlength = cipher_limit; // the format's limit minc = 0x20; maxc = 0xff; length = minlength; c = minc; } # Try strings of repeated digits (range: '0' - '9'). [List.External:Repeats_digits] .include [List.External_base:Repeats] void init() { if (req_minlen) minlength = req_minlen; else minlength = 1; if (req_maxlen) maxlength = req_maxlen; else maxlength = cipher_limit; // the format's limit minc = '0'; maxc = '9'; length = minlength; c = minc; } # Try strings of repeated lowercase letters (range: 'a' - 'z'). [List.External:Repeats_lowercase] .include [List.External_base:Repeats] void init() { if (req_minlen) minlength = req_minlen; else minlength = 1; if (req_maxlen) maxlength = req_maxlen; else maxlength = cipher_limit; // the format's limit minc = 'a'; maxc = 'z'; length = minlength; c = minc; } # Try strings of repeated printable ASCII characters # (range: ' ' - '~'). [List.External:Repeats_printable_ASCII] .include [List.External_base:Repeats] void init() { if (req_minlen) minlength = req_minlen; else minlength = 1; if (req_maxlen) maxlength = req_maxlen; else maxlength = cipher_limit; // the format's limit minc = ' '; maxc = '~'; length = minlength; c = minc; } # Try character sequences ("0123456", "acegikmoqs", "ZYXWVU", etc.). # # The generate() function will limit the maximum length of generated # candidates to either the format's limit (maximum password length) # or to the limit specified with --stdout=LENGTH (Default: 125), # thus avoiding duplicate candidates for formats with limited maximum # passwortd length. # The comparison of the current length and the limit is only done # after switching to a new length. # So, if the minimum length specified already exceeds this limit, # then all the candidates for the minimum length will be generated # nevertheless. # External modes reusing this External_base mode should only need to # adjust the init() function. # In the init() function, a minimum length which is > 1 should be # specified. # Otherwise, the generated candidates will not depend on the increment # specified. # For length = 1, the candidates will be the same as for external mode # Repeats with length 1. # Actually, Repeats is a special case of Sequence, using increment = 0. # External modes reusing this External_base mode should also make sure # that the number of different characters (specified as a range from "from" # to "to") is not smaller than the minimum length ("minlength"), # if the start increment "inc" is 1. # For a start increment > 1, the number of different characters in the # range "from" - "to" must be greater than or equal to # (1 + ("minlength" - 1) * "inc"). # Otherwise you might get unexpected results. # The range of characters to be used for the sequences needs to be # specified by adjusting the "from" and "to" variables. # To generate sequences which decrement characters ("987654"), # "from" must be > "to". # Otherwise, the generated sequences will increment characters ("abcdef"). # # Variables to be used and the generate() function are common # for all sections which include this External_base section. [List.External_base:Sequence] /* * See the [List.External:Sequence_0-9] section to learn more about * the meaning of these variables which can be adjusted to define * new external modes based on an existing one: */ int minlength, from, to, maxlength, inc, direction; /* * The value of these variables shouldn't be changed when copying * an existing external mode: */ int length, first; void generate() { int i; i = 0; while (i < length) { word[i] = first + (i * inc * direction); ++i; } word[i] = 0; // start the next sequence of the same length // with the next character first = first + direction; // But check that a sequence of the current length // is still possible (without leaving the range of // characters allowed if ((direction > 0 && first + (length - 1) * inc > to) || (direction < 0 && first - (length - 1) * inc < to)) { // No more sequence is possible. Reset start character first = from; // Now try the next length. // But just in case an individual External mode reusing // this External_base mode did specify a maxlength // which is larger than the one supported by the format // or by --stdout=LENGTH, make sure no more candidates // are generated. // Checking this just once per length per increment // doen't really hurt performance. if (maxlength > cipher_limit) maxlength = cipher_limit; // For a similar reason, the maximum length of a // sequence is limited by the number of different // characters and by the increment. // The larger the increment, the smaller // the maximum possible length for a given // character range. while (inc * (maxlength - 1) > direction * (to - from)) --maxlength; if (++length > maxlength) { // The maximum length for this increment has been reached. // Restart at minimum length with the next possible // increment ++inc; // Unfortunately, we have to check again // if the maximum length needs to be reduced // for the new increment while (inc * (maxlength - 1) > direction * (to - from)) --maxlength; length = minlength; } if (maxlength < minlength) // With the current increment, we can't even generate // sequences of the minimum required length. // So we need to stop here. // This will make sure that no more candidiates // will be generated: first = 0; } } # Try sequences of digits (range: '0' - '9'). # # Aditional comments can be found in the # section [List.External_base:Sequence] # # This external mode is thoroughly commented, # to make it easier to copy and adjust it as needed. [List.External:Sequence_0-9] .include [List.External_base:Sequence] void init() { // Adjust the following 4 variables if you want to define // a different external mode. // This is the start character for the generated sequence // if "from" is smaller than "to", the increment from // first to second character ... will be positive ("0123456789"). // Otherwise, it will be negative ("987654321"). from = '0'; to = '9'; // minimum length of the sequence // make sure it is not larger than the number of different characters // in the range between "from" and "to" specified above minlength = 2; // start increment for generating the sequence, usually 1 // if it is larger than 1, you need even more characters // in the range between "from" and "to" // Don't specify a negative value here. // If you want to generate sequences like "zyxwvu" or "86420", // adjust "from" and "to" so that "from" is larger than "to". // (A start increment of 0 is also possible, in that case the first // sequences will be candidates which just repeat the same character.) inc = 1; // For copied external modes, no further changes should be required // in the statements following this comment length = minlength; first = from; if (from <= to) { maxlength = to - from + 1; direction = 1; } else { // We have to create sequences which decrement the previous character maxlength = from - to + 1; direction = -1; } } # Try sequence of lower case letters (range: 'a' - 'z'). # This external mode is not very well documented. # Refer to [List.External:Sequence_0-9] for more detailed information. [List.External:Sequence_a-z] .include [List.External_base:Sequence] void init() { from = 'a'; to = 'z'; minlength = 2; inc = 1; length = minlength; first = from; if (from <= to) { maxlength = to - from + 1; direction = 1; } else { maxlength = from - to + 1; direction = -1; } } # Try sequence of lower case letters (range: 'a' - 'z'), but reversed # ("zxywvu"). # This external mode is not very well documented. # Refer to [List.External:Sequence_0-9] for more detailed information. [List.External:Sequence_z-a] .include [List.External_base:Sequence] void init() { from = 'z'; to = 'a'; minlength = 2; inc = 1; length = minlength; first = from; if (from <= to) { maxlength = to - from + 1; direction = 1; } else { maxlength = from - to + 1; direction = -1; } } # Try sequence of printable ASCII characters (range: ' ' - '~'). # This external mode is not very well documented. # Refer to [List.External:Sequence_0-9] for more detailed information. [List.External:Sequence_printable_ascii] .include [List.External_base:Sequence] void init() { from = ' '; to = '~'; minlength = 2; inc = 1; length = minlength; first = from; if (from <= to) { maxlength = to - from + 1; direction = 1; } else { maxlength = from - to + 1; direction = -1; } } # Try sequence of printable ASCII characters (range: ' ' - '~'), # but decrementing characters ("fedcba") instead of incrementing. # This external mode is not very well documented. # Refer to [List.External:Sequence_0-9] for more detailed information. [List.External:Sequence_reversed_ascii] .include [List.External_base:Sequence] void init() { from = '~'; to = ' '; minlength = 2; inc = 1; length = minlength; first = from; if (from <= to) { maxlength = to - from + 1; direction = 1; } else { maxlength = from - to + 1; direction = -1; } } # Try sequence of characters (range: space - 0xff). # This external mode is not very well documented. # Refer to [List.External:Sequence_0-9] for more detailed information. [List.External:Sequence] .include [List.External_base:Sequence] void init() { from = ' '; to = 0xff; minlength = 2; inc = 1; length = minlength; first = from; if (from <= to) { maxlength = to - from + 1; direction = 1; } else { maxlength = from - to + 1; direction = -1; } } # Generate candidate passwords from many small subsets of characters from a # much larger full character set. This will test for passwords containing too # few different characters. As currently implemented, this code will produce # some duplicates, although their number is relatively small when the maximum # number of different characters (the maxdiff setting) is significantly lower # than the maximum length (the maxlength setting). Nevertheless, you may want # to pass the resulting candidate passwords through "unique" if you intend to # test them against hashes that are salted and/or of a slow to compute type. [List.External:Subsets] int minlength; // Minimum password length to try int maxlength; // Maximum password length to try int startdiff; // Initial number of characters in a subset to try int maxdiff; // Maximum number of characters in a subset to try int last; // Last character position, zero-based int lastid; // Character index in the last position int id[0x7f]; // Current character indices for other positions int subset[0x100], c0; // Current subset int subcount; // Number of characters in the current subset int subid[0x100]; // Indices into charset[] of characters in subset[] int charset[0x100]; // Full character set int charcount; // Number of characters in the full charset void init() { int i, c; // Minimum password length to try, must be at least 1 if (req_minlen) minlength = req_minlen; else minlength = 1; // Maximum password length to try, must be at least same as minlength // This external mode's default maximum length can be adjusted // using --max-length= on the command line if (req_maxlen) maxlength = req_maxlen; else maxlength = 8; // "cipher_limit" is the variable which contains the format's // maximum password length if (maxlength > cipher_limit) maxlength = cipher_limit; startdiff = 1; // Initial number of different characters to try maxdiff = 3; // Maximum number of different characters to try /* This defines the character set */ i = 0; c = 0x20; while (c <= 0x7e) charset[i++] = c++; if (maxdiff > (charcount = i)) maxdiff = i; if (maxdiff > maxlength) maxdiff = maxlength; /* * Initialize the variables such that generate() gets to its "next subset" * code, which will initialize everything for real. */ subcount = (i = startdiff) - 1; while (i--) subid[i] = charcount; subset[0] = c0 = 0; last = maxlength - 1; lastid = -1; } void generate() { int i; /* Handle the typical case specially */ if (word[last] = subset[++lastid]) return; lastid = 0; word[i = last] = c0; while (i--) { // Have a preceding position? if (word[i] = subset[++id[i]]) return; id[i] = 0; word[i] = c0; } if (++last < maxlength) { // Next length? id[last] = lastid = 0; word[last] = c0; word[last + 1] = 0; return; } /* Next subset */ if (subcount) { int j; i = subcount - 1; j = charcount; while (++subid[i] >= j) { if (i--) { j--; continue; } subid[i = 0] = 0; subset[++subcount] = 0; break; } } else { subid[i = 0] = 0; subset[++subcount] = 0; } subset[i] = charset[subid[i]]; while (++i < subcount) subset[i] = charset[subid[i] = subid[i - 1] + 1]; if (subcount > maxdiff) { word = 0; // Done return; } /* * We won't be able to fully use the subset if the length is smaller than the * character count. We assume that we've tried all smaller subsets before, so * we don't bother with such short lengths. */ if (minlength < subcount) last = subcount - 1; else last = minlength - 1; c0 = subset[0]; i = 0; while (i <= last) { id[i] = 0; word[i++] = c0; } lastid = 0; word[i] = 0; } # Simple password policy matching: require at least one digit. [List.External:AtLeast1-Simple] void filter() { int i, c; i = 0; while (c = word[i++]) if (c >= '0' && c <= '9') return; // Found at least one suitable character, good word = 0; // No suitable characters found, skip this "word" } # The same password policy implemented in a more efficient and more generic # fashion (easy to expand to include other "sufficient" characters as well). [List.External:AtLeast1-Generic] int mask[0x100]; void init() { int c; mask[0] = 0; // Terminate the loop in filter() on NUL c = 1; while (c < 0x100) mask[c++] = 1; // Continue looping in filter() on most chars c = '0'; while (c <= '9') mask[c++] = 0; // Terminate the loop in filter() on digits } void filter() { int i; i = -1; while (mask[word[++i]]) continue; if (word[i]) return; // Found at least one suitable character, good word = 0; // No suitable characters found, skip this "word" } # An efficient and fairly generic password policy matcher. The policy to match # is specified in the check at the end of filter() and in mask[]. For example, # lowercase and uppercase letters may be treated the same by initializing the # corresponding mask[] elements to the same value, then adjusting the value to # check "seen" for accordingly. [List.External:Policy] int mask[0x100]; void init() { int c; mask[0] = 0x100; c = 1; while (c < 0x100) mask[c++] = 0x200; c = 'a'; while (c <= 'z') mask[c++] = 1; c = 'A'; while (c <= 'Z') mask[c++] = 2; c = '0'; while (c <= '9') mask[c++] = 4; } void filter() { int i, seen; /* * This loop ends when we see NUL (sets 0x100) or a disallowed character * (sets 0x200). */ i = -1; seen = 0; while ((seen |= mask[word[++i]]) < 0x100) continue; /* * We should have seen at least one character of each type (which "add up" * to 7) and then a NUL (adds 0x100), but not any other characters (would * add 0x200). The length must be 8. */ if (seen != 0x107 || i != 8) word = 0; // Does not conform to policy } # Append the Luhn algorithm digit to arbitrary all-digit strings. Optimized # for speed, not for size nor simplicity. The primary optimization trick is to # compute the length and four sums in parallel (in two SIMD'ish variables). # Then whether the length is even or odd determines which two of the four sums # are actually used. Checks for non-digits and for NUL are packed into the # SIMD'ish bitmasks as well. [List.External:AppendLuhn] int map1[0x100], map2[0x1fff]; void init() { int i; map1[0] = ~0x7fffffff; i = 1; while (i < 0x100) map1[i++] = ~0x7effffff; i = -1; while (++i < 10) map1['0' + i] = i + ((i * 2 % 10 + i / 5) << 12); i = -1; while (++i < 0x1fff) { if (i % 10) map2[i] = '9' + 1 - i % 10; else map2[i] = '0'; } } void filter() { int i, o, e; i = o = e = 0; while ((o += map1[word[i++]]) >= 0) { if ((e += map1[word[i++]]) >= 0) continue; if (e & 0x01000000) return; // Not all-digit, leave unmodified word[i--] = 0; word[i] = map2[(e & 0xfff) + (o >> 12)]; return; } if (o & 0x01000000) return; // Not all-digit, leave unmodified word[i--] = 0; word[i] = map2[(o & 0xfff) + (e >> 12)]; } # Trivial Rotate function, which rotates letters in a word # by a given number of places (like 13 in case of ROT13). # Words which don't contain any letters (and thus wouldn't be changed # by this filter) are skipped, because these unchanged words probably # should have been tried before trying a mangled version. [List.External_base:Filter_Rotate] int rot; // The number of places to rotate each letter in a word void filter() { int i, j, c; i = 0; j = 0; // j counts the number of changed characters while (c = word[i]) { if (c >= 'a' && c <= 'z') { c = c - 26 + rot; if (c < 'a') c += 26; word[i] = c; j++; } else if (c >= 'A' && c <= 'Z' ) { c = c - 26 + rot; if (c < 'A') c += 26; word[i] = c; j++; } i++; } if (j == 0) // Noting changed. Reject this word. word = 0; } # ROT13 Example [List.External:Filter_ROT13] .include [List.External_base:Filter_Rotate] void init() { // Just in case someone wants to "rotate" by other values, // adjust the value of the rot variable // (may be in a copied external mode): // 13: "abcABCxyzXYZ" -> "nopNOPklmKLM" // 1: "abcABCxyzXYZ" -> "bcdBCDyzaYZA" // 25: "abcABCxyzXYZ" -> "zabZABwxyWXY" // -1: "abcABCxyzXYZ" -> "zabZABwxyWXY" // and so on // Allowed range: -25 <= rot <= -1, or 1 <= rot <= 25 rot = 13; // Don't change the following statement. // It is supposed to "sanitize" the value to be in the // range rot = (rot + 26) % 26; } # Trivial parallel processing example (obsoleted by the "--node" option) [List.External:Parallel] /* * This word filter makes John process some of the words only, for running * multiple instances on different CPUs. It can be used with any cracking * mode except for "single crack". Note: this is not a good solution, but * is just an example of what can be done with word filters. */ int node, total; // This node's number, and node count int number; // Current word number void init() { node = 1; total = 2; // Node 1 of 2, change as appropriate number = node - 1; // Speedup the filter a bit } void filter() { if (number++ % total) // Word for a different node? word = 0; // Yes, skip it } # Interrupt the cracking session after "max" words tried [List.External:AutoAbort] int max; // Maximum number of words to try int number; // Current word number void init() { max = 1000; number = 0; } void filter() { if (++number > max) abort = 1; // Interrupt the cracking session } # Print the status line after every "interval" words tried [List.External:AutoStatus] int interval; // How often to print the status int number; // Current word number void init() { interval = 1000; number = 0; } void filter() { if (number++ % interval) return; status = 1; // Print the status line } # End of john.conf file. # Keep this comment, and blank line above it, to make sure a john.local.conf # that does not end with \n is properly loaded.