--[[ (example) Legic-Prime Layout with 'Kaba Group Header' +----+----+----+----+----+----+----+----+ 0x00|MCD |MSN0|MSN1|MSN2|MCC | 60 | ea | 9f | +----+----+----+----+----+----+----+----+ 0x08| ff | 00 | 00 | 00 | 11 |Bck0|Bck1|Bck2| +----+----+----+----+----+----+----+----+ 0x10|Bck3|Bck4|Bck5|BCC | 00 | 00 |Seg0|Seg1| +----+----+----+----+----+----+----+----+ 0x18|Seg2|Seg3|SegC|Stp0|Stp1|Stp2|Stp3|UID0| +----+----+----+----+----+----+----+----+ 0x20|UID1|UID2|kghC| +----+----+----+ MCD = Manufacturer ID MSN = Manufacturer SerialNumber 60 ea = DCF Low + DCF high 9f = raw byte which holds the bits for OLE,WRP,WRC,RD ff = unknown but important 00 = unimportant 11 = unknown but important Bck = header-backup-area 00 00 = Year (00 = 2000) & Week (not important) Seg = Segment Header SegC = Crc8 over the Segment Header Stp = Stamp (could be more as 4 - up to 7) UID = dec User-ID for online-Mapping kghC = crc8 over MCD + MSN0..MSN2 + UID (example) Legic-Cash on MIM256/1024 tag' (37 bytes) +----+----+----+----+----+----+----+----+ 0x00|Seg0|Seg1|Seg2|Seg3|SegC|STP0|STP1|STP2| +----+----+----+----+----+----+----+----+ 0x08|STP3|STP4|STP5|STP6| 01 |CURh|CURl|LIMh| +----+----+----+----+----+----+----+----+ 0x10|LIMm|LIMl|CHKh|CHKl|BALh|BALm|BALl|LRBh| +----+----+----+----+----+----+----+----+ 0x18|LRBm|LRBl|CHKh|CHKl|SHDh|SHDm|SHDl|LRSh| +----+----+----+----+----+----+----+----+ 0x20|LRSm|LRSl| CV |CHKh|CHKl| +----+----+----+----+----+ STP = Stamp (seems to be always 7 bytes) 01 = unknown but important CUR = currency in HEX (ISO 4217) LIM = Cash-Limit CHK = crc16 over byte-addr 0x05..0x12 BAL = Balance LRB = ID of the reader that changed the balance CHK = crc16 over BAL + LRB SHD = shadow Balance LRS = ID of the reader that changed the shadow balance (?? should be always the same as LRB) CV = Counter value for transactions CHK = crc16 over SHD + LRS + CV --]] example = "script run legic" author = "Mosci" version = "1.0.1" desc = [[ This script helps you to read, create and modify Legic Prime Tags (MIM22, MIM256, MIM1024) it's kinda interactive with following commands in three categories: Data I/O Segment Manipulation Token-Data ----------------- -------------------- ----------------- rt => read Tag as => add Segment mt => make Token wt => write Tag es => edit Segment Header et => edit Token data ct => copy io Tag ed => edit Segment Data tk => toggle KGH-Flag tc => copy oi Tag rs => remove Segment cc => check Segment-CRC File I/O di => dump inTag ck => check KGH ----------------- do => dump outTag lf => load File ds => dump Segments sf => save File lc => dump Legic-Cash xf => xor to File d3p => dump 3rd Party Cash r3p => raw 3rd Party Cash rt: 'read tag' - reads a tag placed near to the PM3 wt: 'write tag' - writes the content of the 'virtual inTag' to a tag placed near to th PM3 without the need of changing anything - MCD,MSN,MCC will be read from the tag before and applied to the output. ct: 'copy tag' - copy the 'virtual Tag' to a second 'virtual TAG' - not usefull yet, but inernally needed tc: 'copy tag' - copy the 'second virtual Tag' to 'virtual TAG' - not usefull yet, but inernally needed di: 'dump inTag' - shows the current content of the 'virtual Tag' do: 'dump outTag' - shows the current content of the 'virtual outTag' ds: 'dump Segments' - will show the content of a selected Segment as: 'add Segment' - will add a 'empty' Segment to the inTag es: 'edit Segment' - edit the Segment-Header of a selected Segment (len, WRP, WRC, RD, valid) all other Segment-Header-Values are either calculated or not needed to edit (yet) ed: 'edit data' - edit the Data of a Segment (ADF-Aera / Stamp & Payload specific Data) et: 'edit Token' - edit Data of a Token (CDF-Area / SAM, SAM64, SAM63, IAM, GAM specific Data) mt: 'make Token' - create a Token 'from scratch' (guided) rs: 'remove segment' - removes a Segment (except Segment 00, but this can be set to valid=0 for Master-Token) cc: 'check Segment-CRC'- checks & calculates (if check failed) the Segment-CRC of all Segments ck: 'check KGH-CRC' - checks the and calculates a 'Kaba Group Header' if one was detected 'Kaba Group Header CRC calculation' tk: 'toggle KGH' - toglle the (script-internal) flag for kgh-calculation for a segment xc: 'etra c' - show string that was used to calculate the kgh-crc of a segment dlc: 'dump Legic-Cash' - show balance and checksums of a legic-Cash Segment d3p: 'dump 3rd Party' - show balance, history and checksums of a (yet) unknown 3rd Party Cash-Segment r3p: 'raw 3rd Party' - show balance, history and checksums of a (yet) unknown 3rd Party Cash-Segment e3p: 'edit 3rd Party' - edit Data in 3rd Party Cash Segment lf: 'load file' - load a (xored) file from the local Filesystem into the 'virtual inTag' sf: 'save file' - saves the 'virtual inTag' to the local Filesystem (xored with Tag-MCC) xf: 'xor file' - saves the 'virtual inTag' to the local Filesystem (xored with choosen MCC - use '00' for plain values) ]] currentTag="inTAG" --- -- requirements local utils = require('utils') local getopt = require('getopt') --- -- global variables / defines local bxor = bit32.bxor local bbit = bit32.extract local input = utils.input local confirm = utils.confirm --- -- curency-codes for Legic-Cash-Segments (ISO 4217) local currency = { ["03d2"]="EUR", ["0348"]="USD", ["033A"]="GBP", ["02F4"]="CHF" } --- -- This is only meant to be used when errors occur function oops(err) print("ERROR: ",err) return nil, err end --- -- Usage help function help() print(desc) print(version) print("Example usage") print(example) end --- -- table check helper function istable(t) return type(t) == 'table' end --- -- xor single byte function xorme(hex, xor, index) if ( index >= 23 ) then return ('%02x'):format(bxor( tonumber(hex,16) , tonumber(xor,16) )) else return hex end end --- -- (de)obfuscate bytes function xorBytes(inBytes, crc) local bytes = {} for index = 1, #inBytes do bytes[index] = xorme(inBytes[index], crc, index) end if (#inBytes == #bytes) then -- replace crc bytes[5] = string.sub(crc,-2) return bytes else print("error: byte-count missmatch") return false end end --- -- check availability of file function file_check(file_name) local file_found=io.open(file_name, "r") if file_found==nil then return false else return true end end --- -- read file into virtual-tag function readFile(filename) local bytes = {} local tag = {} if (file_check(filename)==false) then return oops("input file: "..filename.." not found") else bytes = getInputBytes(filename) if (bytes == false) then return oops('couldnt get input bytes') else -- make plain bytes bytes = xorBytes(bytes,bytes[5]) -- create Tag for plain bytes tag=createTagTable() -- load plain bytes to tag-table tag=bytesToTag(bytes, tag) end end return tag end --- -- write bytes to file function writeFile(bytes, filename) if (filename~='MylegicClone.hex') then if (file_check(filename)) then local answer = confirm("\nthe output-file "..filename.." alredy exists!\nthis will delete the previous content!\ncontinue?") if (answer==false) then return print("user abort") end end end local line local bcnt=0 local fho,err = io.open(filename, "w") if err then oops("OOps ... faild to open output-file ".. filename) end bytes=xorBytes(bytes, bytes[5]) for i = 1, #bytes do if (bcnt == 0) then line=bytes[i] elseif (bcnt <= 7) then line=line.." "..bytes[i] end if (bcnt == 7) then -- write line to new file fho:write(line.."\n") -- reset counter & line bcnt=-1 line="" end bcnt=bcnt+1 end fho:close() print("\nwrote ".. #bytes .." bytes to " .. filename) return true end --- -- put certain bytes into a new table function bytesToTable(bytes, bstart, bend) local t={} for i=0, (bend-bstart) do t[i]=bytes[bstart+i] end return t end --- -- read from pm3 into virtual-tag function readFromPM3() local tag, bytes, infile --if (confirm("is the Tag placed onto the Proxmak3 and ready for reading?")) then --print("reading Tag ...") --infile=input("input a name for the temp-file:", "legic.temp") --if (file_check(infile)) then -- local answer = confirm("\nthe output-file "..infile.." alredy exists!\nthis will delete the previous content!\ncontinue?") -- if (answer==false) then return print("user abort") end --end infile="legic.temp" core.console("hf legic reader") core.console("hf legic save "..infile) --print("read temp-file into virtual Tag ...") tag=readFile(infile) return tag --else return print("user abort"); end end --- -- write virtual Tag to real Tag function writeToTag(plainBytes, taglen, filename) local bytes if(utils.confirm("\nplace your empty tag onto the PM3 to read & write\n") == false) then return end -- write data to file if (taglen > 0) then WriteBytes = utils.input("enter number of bytes to write?", taglen) -- load file into pm3-buffer if (type(filename)~="string") then filename=input("filename to load to pm3-buffer?","legic.temp") end cmd = 'hf legic load '..filename core.console(cmd) -- write pm3-buffer to Tag for i=0, WriteBytes do if ( i<5 or i>6) then cmd = ('hf legic write 0x%02x 0x01'):format(i) core.console(cmd) --print(cmd) elseif (i == 6) then -- write DCF in reverse order (requires 'mosci-patch') cmd = 'hf legic write 0x05 0x02' core.console(cmd) --print(cmd) else print("skipping byte 0x05 - will be written next step") end utils.Sleep(0.2) end end end --- -- read file into table function getInputBytes(infile) local line local bytes = {} local fhi,err = io.open(infile) if err then oops("faild to read from file ".. infile); return false; end while true do line = fhi:read() if line == nil then break end for byte in line:gmatch("%w+") do table.insert(bytes, byte) end end fhi:close() print(#bytes .. " bytes from "..infile.." loaded") return bytes end --- -- create tag-table helper function createTagTable() local t={ ['MCD'] = '00', ['MSN0']= '11', ['MSN1']= '22', ['MSN2']= '33', ['MCC'] = 'cc', ['DCFl']= 'ff', ['DCFh']= 'ff', ['Type']= 'GAM', ['OLE'] = 0, ['Stamp_len']= 18, ['WRP'] = '00', ['WRC'] = '00', ['RD'] = '00', ['raw'] = '9f', ['SSC'] = 'ff', ['data']= {}, ['bck'] = {}, ['MTC'] = {}, ['SEG'] = {} } return t end --- -- put bytes into tag-table function bytesToTag(bytes, tag) if(istable(tag)) then tag.MCD =bytes[1]; tag.MSN0=bytes[2]; tag.MSN1=bytes[3]; tag.MSN2=bytes[4]; tag.MCC =bytes[5]; tag.DCFl=bytes[6]; tag.DCFh=bytes[7]; tag.raw =bytes[8]; tag.SSC =bytes[9]; tag.Type=getTokenType(tag.DCFl); tag.OLE=bbit("0x"..tag.DCFl,7,1) tag.WRP=("%d"):format(bbit("0x"..bytes[8],0,4)) tag.WRC=("%d"):format(bbit("0x"..bytes[8],4,3)) tag.RD=("%d"):format(bbit("0x"..bytes[8],7,1)) tag.Stamp_len=(tonumber(0xfc,10)-tonumber(bbit("0x"..tag.DCFh,0,8),10)) tag.data=bytesToTable(bytes, 10, 13) tag.Bck=bytesToTable(bytes, 14, 20) tag.MTC=bytesToTable(bytes, 21, 22) print("Tag-Type: ".. tag.Type) if (tag.Type=="SAM" and #bytes>23) then tag=segmentsToTag(bytes, tag) print((#tag.SEG+1).." Segment(s) found") -- unsegmented Master-Token -- only tag-data else for i=0, #tag.Bck do table.insert(tag.data, tag.Bck[i]) end tag.data[#tag.data]=tag.MTC[0] tag.Bck=nil --tag.MTC[0]=tag.MTC[1] --tag.MTC[1]=nil end print(#bytes.." bytes for Tag processed") return tag end return oops("tag is no table in: bytesToTag ("..type(tag)..")") end --- -- read Tag-Table in bytes-table function tagToBytes(tag) if (istable(tag)) then local bytes = {} local i, i2 -- main token-data table.insert(bytes, tag.MCD) table.insert(bytes, tag.MSN0) table.insert(bytes, tag.MSN1) table.insert(bytes, tag.MSN2) table.insert(bytes, tag.MCC) table.insert(bytes, tag.DCFl) table.insert(bytes, tag.DCFh) table.insert(bytes, tag.raw) table.insert(bytes, tag.SSC) -- raw token data for i=0, #tag.data do table.insert(bytes, tag.data[i]) end -- backup data if(istable(tag.Bck)) then for i=0, #tag.Bck do table.insert(bytes, tag.Bck[i]) end end -- token-create-time / master-token crc for i=0, #tag.MTC do table.insert(bytes, tag.MTC[i]) end -- process segments if (type(tag.SEG[0])=='table') then for i=0, #tag.SEG do for i2=1, #tag.SEG[i].raw+1 do table.insert(bytes, #bytes+1, tag.SEG[i].raw[i2]) end table.insert(bytes, #bytes+1, tag.SEG[i].crc) for i2=0, #tag.SEG[i].data-1 do table.insert(bytes, #bytes+1, tag.SEG[i].data[i2]) end end end -- fill with zeros for i=#bytes+1, 1024 do table.insert(bytes, i, '00') end print(#bytes.." bytes of Tag dumped") return bytes end return oops("tag is no table in tagToBytes ("..type(tag)..")") end --- -- make token function makeToken() local mt={ ['Type'] = {"SAM", "SAM63", "SAM64", "IAM", "GAM"}, ['DCF'] = {"60ea", "31fa", "30fa", "80fa", "f0fa"}, ['WRP'] = {"15", "2", "2", "2", "2"}, ['WRC'] = {"01", "02", "02", "00", "00"}, ['RD'] = {"01", "00", "00", "00", "00"}, ['Stamp'] = {"00", "00", "00", "00", "00"}, ['Segment'] = {"0d", "c0", "04", "00", "be", "01", "02", "03", "04", "01", "02", "03", "04"} } ttype="" for k, v in pairs(mt.Type) do ttype=ttype..k..") "..v.." " end mtq=tonumber(input("select number for Token-Type\n"..ttype, '1'), 10) if (type(mtq)~="number") then return print("selection invalid!") elseif (mtq>#mt.Type) then return print("selection invalid!") else print("Token-Type '"..mt.Type[mtq].."' selected") end local raw=calcHeaderRaw(mt.WRP[mtq], mt.WRC[mtq], mt.RD[mtq]) local mtCRC="00" bytes={"01", "02", "03", "04", "cb", string.sub(mt.DCF[mtq], 0, 2), string.sub(mt.DCF[mtq], 3), raw, "00", "00", "00", "00", "00", "00", "00", "00", "00", "00", "00", "00", "00", "00"} if (mtq==1) then for i=0, #mt.Segment do table.insert(bytes, mt.Segment[i]) end bytes[9]="ff" end -- fill bytes for i=#bytes, 1023 do table.insert(bytes, "00") end -- if Master-Token -> calc Master-Token-CRC if (mtq>1) then bytes[22]=calcMtCrc(bytes) end local tempTag=createTagTable() -- remove segment if MasterToken if (mtq>1) then tempTag.SEG[0]=nil end return bytesToTag(bytes, tempTag) end --- -- edit token-data function editTag(tag) -- for simulation it makes sense to edit everything local edit_sim="MCD MSN0 MSN1 MSN2 MCC DCFl DCFh WRP WRC RD" -- on real tags it makes only sense to edit DCF, WRP, WRC, RD local edit_real="DCFl DCFh WRP WRC RD" if (confirm("do you want to edit non-writeable values (e.g. for simulation)?")) then edit_tag=edit_sim else edit_tag=edit_real end if(istable(tag)) then for k,v in pairs(tag) do if(type(v)~="table" and type(v)~="boolean" and string.find(edit_tag, k)) then tag[k]=input("value for: "..k, v) end end if (tag.Type=="SAM") then ttype="Header"; else ttype="Stamp"; end if (confirm("do you want to edit "..ttype.." Data?")) then -- master-token specific if(istable(tag.Bck)==false) then -- stamp-data length=(0xfc-DCFh) -- on MT: SSC holds the Starting Stamp Character (Stamp0) tag.SSC=input(ttype.."0: ", tag.SSC) -- rest of stamp-bytes are in tag.data 0..n for i=0, (tonumber(0xfc ,10)-("%d"):format('0x'..tag.DCFh))-2 do tag.data[i]=input(ttype.. i+1 ..": ", tag.data[i]) end else --- on credentials byte7 should always be 9f and byte8 ff -- on Master-Token not (even on SAM63/64 not) -- tag.SSC=input(ttype.."0: ", tag.SSC) for i=0, #tag.data do tag.data[i]=input(ttype.. i ..": ", tag.data[i]) end end end bytes=tagToBytes(tag) --- check data-consistency (calculate tag.raw) bytes[8]=calcHeaderRaw(tag.WRP, tag.WRC, tag.RD) --- Master-Token specific -- should be triggered if a SAM was converted to a non-SAM (user-Token to Master-Token) -- or a Master-Token has being edited (also SAM64 & SAM63 - which are in fact Master-Token) if(tag.Type~="SAM" or bytes[6]..bytes[7]~="60ea") then -- calc new Master-Token crc bytes[22]=calcMtCrc(bytes) else -- ensure tag.SSC set to 'ff' on credential-token (SAM) bytes[9]='ff' -- if a Master-Token was converted to a Credential-Token -- lets unset the Time-Area to 00 00 (will contain Stamp-Data on MT) bytes[21]='00' bytes[22]='00' end tag=bytesToTag(bytes, tag) end end --- -- calculates header-byte (addr 0x07) function calcHeaderRaw(wrp, wrc, rd) local res wrp=("%02x"):format(tonumber(wrp, 10)) rd=tonumber(rd, 16) res=("%02x"):format(tonumber(wrp, 16)+tonumber(wrc.."0", 16)+((rd>0) and tonumber("8"..(rd-1), 16) or 0)) return res end --- -- dump virtual Tag-Data function dumpTag(tag) local i, i2 local res local dp=0 local raw="" -- sytstem area res ="\nCDF: System Area" res= res.."\n"..dumpCDF(tag) -- segments (user-token area) if(tag.Type=="SAM") then res = res.."\n\nADF: User Area" for i=0, #tag.SEG do res=res.."\n"..dumpSegment(tag, i).."\n" end end return res end --- -- get segmemnt-data from byte-table function getSegmentData(bytes, start, index) local segment={ ['index'] = '00', ['flag'] = 'c', ['valid'] = 0, ['last'] = 0, ['len'] = 13, ['raw'] = {'00', '00', '00', '00'}, ['WRP'] = 4, ['WRC'] = 0, ['RD'] = 0, ['crc'] = '00', ['data'] = {}, ['kgh'] = false } if (bytes[start]) then local i -- #index segment.index = index -- flag = high nibble of byte 1 segment.flag = string.sub(bytes[start+1],0,1) -- valid = bit 6 of byte 1 segment.valid = bbit("0x"..bytes[start+1],6,1) -- last = bit 7 of byte 1 segment.last = bbit("0x"..bytes[start+1],7,1) -- len = (byte 0)+(bit0-3 of byte 1) segment.len = tonumber(bbit("0x"..bytes[start+1],0,4)..bytes[start],16) -- raw segment header segment.raw = {bytes[start], bytes[start+1], bytes[start+2], bytes[start+3]} -- wrp (write proteted) = byte 2 segment.WRP = tonumber(bytes[start+2],16) -- wrc (write control) - bit 4-6 of byte 3 segment.WRC = tonumber(bbit("0x"..bytes[start+3],4,3),16) -- rd (read disabled) - bit 7 of byte 3 segment.RD = tonumber(bbit("0x"..bytes[start+3],7,1),16) -- crc byte 4 segment.crc = bytes[start+4] -- segment-data starts at segment.len - segment.header - segment.crc for i=0, (segment.len-5) do segment.data[i]=bytes[start+5+i] end return segment else return false; end end --- -- put segments from byte-table to tag-table function segmentsToTag(bytes, tag) if(#bytes>23) then local start=23 local i=-1 if (istable(tag)) then repeat i=i+1 tag.SEG[i]=getSegmentData(bytes, start, ("%02d"):format(i)) if (tag.Type=="SAM") then if (checkKghCrc(tag, i)) then tag.SEG[i].kgh=true end end start=start+tag.SEG[i].len until ((tag.SEG[i].valid==0) or tag.SEG[i].last==1 or i==126) return tag else return oops("tag is no table in: segmentsToTag ("..type(tag)..")") end else print("no Segments: must be a MIM22") end end --- -- regenerate segment-header (after edit) function regenSegmentHeader(segment) local seg=segment local raw = segment.raw local i -- len bit0..7 | len=12bit=low nibble of byte1..byte0 raw[1]=("%02x"):format(bbit("0x"..("%03x"):format(seg.len),0,8)) -- high nibble of len bit6=valid , bit7=last of byte 1 | ?what are bit 5+6 for? maybe kgh? raw[2]=("%02x"):format(bbit("0x"..("%03x"):format(seg.len),4.4)..bbit("0x"..("%02x"):format((seg.valid*64)+(seg.last*128)),0,8)) -- WRP raw[3]=("%02x"):format(bbit("0x"..("%02x"):format(seg.WRP),0,8)) -- WRC + RD raw[4]=("%02x"):format(bbit("0x"..("%03x"):format(seg.WRC),4,3)..bbit("0x"..("%02x"):format(seg.RD*128),0,8)) -- flag seg.flag=string.sub(raw[2],0,1) --print(raw[1].." "..raw[2].." "..raw[3].." "..raw[4]) if(#seg.data>(seg.len-5)) then print("current payload: ".. #seg.data .." - desired payload: ".. seg.len-5) print("Data-Length has being reduced: removing ".. #seg.data-(seg.len-5) .." bytes from Payload"); for i=(seg.len-5), #seg.data-1 do table.remove(seg.data) end elseif (#seg.data<(seg.len-5)) then print("current payload: ".. #seg.data .." - desired payload: ".. seg.len-5) print("Data-Length has being extended: adding "..(seg.len-5)-#seg.data.." bytes to Payload"); for i=#seg.data, (seg.len-5)-1 do table.insert(seg.data, '00') end end return seg end --- -- determine TagType (bits 0..6 of DCFlow) function getTokenType(DCFl) --[[ 0x00–0x2f IAM 0x30–0x6f SAM 0x70–0x7f GAM ]]-- local tt = tonumber(bbit("0x"..DCFl,0,7),10) if (tt >= 0 and tt <= 47) then tt = "IAM" elseif (tt == 49) then tt = "SAM63" elseif (tt == 48) then tt = "SAM64" elseif (tt >= 50 and tt <= 111) then tt = "SAM" elseif (tt >= 112 and tt <= 127) then tt = "GAM" else tt = "???" end return tt end --- -- dump tag-system area function dumpCDF(tag) local res="" local i=0 local raw="" local bytes if (istable(tag)) then res = res.."MCD: "..tag.MCD..", MSN: "..tag.MSN0.." "..tag.MSN1.." "..tag.MSN2..", MCC: "..tag.MCC.."\n" res = res.."DCF: "..tag.DCFl.." "..tag.DCFh..", Token_Type="..tag.Type.." (OLE="..tag.OLE.."), Stamp_len="..tag.Stamp_len.."\n" res = res.."WRP="..tag.WRP..", WRC="..tag.WRC..", RD="..tag.RD..", raw="..tag.raw..((tag.raw=='9f') and (", SSC="..tag.SSC.."\n") or "\n") -- credential (end-user tag) if (tag.Type=="SAM") then res = res.."Remaining Header Area\n" for i=0, (#tag.data) do res = res..tag.data[i].." " end res = res.."\nBackup Area\n" for i=0, (#tag.Bck) do res = res..tag.Bck[i].." " end res = res.."\nTime Area\n" for i=0, (#tag.MTC) do res = res..tag.MTC[i].." " end -- Master Token specific else res = res .."Master-Token Area\nStamp: " res= res..tag.SSC.." " for i=0, tag.Stamp_len-2 do res = res..tag.data[i].." " end res=res.."\nunused payload\n" for i=0, (#tag.data-tag.Stamp_len-1) do res = res..tag.data[i].." " end bytes=tagToBytes(tag) local mtcrc=calcMtCrc(bytes) res=res.."\nMaster-Token CRC: " res = res ..tag.MTC[1].." ("..((tag.MTC[1]==mtcrc) and "valid" or "error")..")" end return res else print("no valid Tag in dumpCDF") end end --- -- dump single segment function dumpSegment(tag, index) local i=index local i2 local dp=0 --data-position in table local res="" --result local raw="" --raw-header -- segment if ( (istable(tag.SEG[i])) and tag.Type=="SAM") then if (istable(tag.SEG[i].raw)) then for k,v in pairs(tag.SEG[i].raw) do raw=raw..v.." " end end -- segment header res = res.."Segment "..("%02d"):format(tag.SEG[i].index)..": " res = res .."raw header:"..string.sub(raw,0,-2)..", flag="..tag.SEG[i].flag..", (valid="..("%x"):format(tag.SEG[i].valid)..", last="..("%x"):format(tag.SEG[i].last).."), " res = res .."len="..("%04d"):format(tag.SEG[i].len)..", WRP="..("%02x"):format(tag.SEG[i].WRP)..", WRC="..("%02x"):format(tag.SEG[i].WRC)..", " res = res .."RD="..("%02x"):format(tag.SEG[i].RD)..", CRC="..tag.SEG[i].crc.." " res = res .."("..(checkSegmentCrc(tag, i) and "valid" or "error")..")" raw="" -- WRC protected if (tag.SEG[i].WRC>0) then res = res .."\nWRC protected area:\n" for i2=dp, tag.SEG[i].WRC-1 do res = res..tag.SEG[i].data[dp].." " dp=dp+1 end end -- WRP mprotected if ((tag.SEG[i].WRP-tag.SEG[i].WRC)>0) then res = res .."\nRemaining write protected area:\n" for i2=dp, (tag.SEG[i].WRP-tag.SEG[i].WRC)-1 do res = res..tag.SEG[i].data[dp].." " dp=dp+1 end end -- payload if (#tag.SEG[i].data-dp>0) then res = res .."\nRemaining segment payload:\n" for i2=dp, #tag.SEG[i].data-2 do res = res..tag.SEG[i].data[dp].." " dp=dp+1 end if (tag.SEG[i].kgh) then res = res..tag.SEG[i].data[dp].." (KGH: "..(checkKghCrc(tag, i) and "valid" or "error")..")" else res = res..tag.SEG[i].data[dp] end end dp=0 return res else return print("Segment not found") end end --- -- edit segment helper function editSegment(tag, index) local k,v local edit_possible="valid len RD WRP WRC Stamp Payload" if (istable(tag.SEG[index])) then for k,v in pairs(tag.SEG[index]) do if(string.find(edit_possible,k)) then tag.SEG[index][k]=tonumber(input(k..": ", v),10) end end else print("Segment with Index: "..("%02d"):format(index).." not found in Tag") return false end regenSegmentHeader(tag.SEG[index]) print("\n"..dumpSegment(tag, index).."\n") return tag end --- -- edit Segment Data function editSegmentData(data) local lc=check4LegicCash(data) io.write("\n") if (istable(data)) then for i=0, #data-1 do data[i]=input("Data"..i..": ", data[i]) end if (lc) then data=fixLegicCash(data) end return data else print("no Segment-Data found") end end --- -- list available segmets in virtual tag function segmentList(tag) local i local res = "" if (istable(tag.SEG[0])) then for i=0, #tag.SEG do res = res .. tag.SEG[i].index .. " " end return res else print("no Segments found in Tag") return false end end --- -- helper to selecting a segment function selectSegment(tag) local sel if (istable(tag.SEG[0])) then print("availabe Segments:\n"..segmentList(tag)) sel=input("select Segment: ", '00') sel=tonumber(sel,10) if (sel) then return sel else return '0' end else print("\nno Segments found") return false end end --- -- add segment function addSegment(tag) local i local segment={ ['index'] = '00', ['flag'] = 'c', ['valid'] = 1, ['last'] = 1, ['len'] = 13, ['raw'] = {'0d', '40', '04', '00'}, ['WRP'] = 4, ['WRC'] = 0, ['RD'] = 0, ['crc'] = '00', ['data'] = {}, ['kgh'] = false } if (istable(tag.SEG[0])) then tag.SEG[#tag.SEG].last=0 table.insert(tag.SEG, segment) for i=0, 8 do tag.SEG[#tag.SEG].data[i]=("%02x"):format(i) end tag.SEG[#tag.SEG].index=("%02d"):format(#tag.SEG) return tag else print("no Segment-Table found") end end --- -- delete segment (except segment 00) function delSegment(tag, index) if (istable(tag.SEG[0])) then local i if (type(index)=="string") then index=tonumber(index,10) end if (index > 0) then table.remove(tag.SEG, index) for i=0, #tag.SEG do tag.SEG[i].index=("%02d"):format(i) end end if(istable(tag.SEG[#tag.SEG])) then tag.SEG[#tag.SEG].last=1 end return tag end end --- -- return bytes 'sstrat' to 'send' from a table function dumpTable(tab, header, tstart, tend) res="" for i=tstart, tend do res=res..tab[i].." " end if (string.len(header)==0) then return res else return (header.." #"..(tend-tstart+1).."\n"..res) end end function dump3rdPartyCash1(tag , seg) local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2 local stamp=tag.SEG[seg].data[0].." "..tag.SEG[seg].data[1].." "..tag.SEG[seg].data[2] local datastamp=tag.SEG[seg].data[20].." "..tag.SEG[seg].data[21].." "..tag.SEG[seg].data[22] local balance=tonumber(tag.SEG[seg].data[32]..tag.SEG[seg].data[33] ,16) local balancecrc=utils.Crc8Legic(uid..tag.SEG[seg].data[32]..tag.SEG[seg].data[33]) local mirror=tonumber(tag.SEG[seg].data[35]..tag.SEG[seg].data[36] ,16) local mirrorcrc=utils.Crc8Legic(uid..tag.SEG[seg].data[35]..tag.SEG[seg].data[36]) local lastbal0=tonumber(tag.SEG[seg].data[39]..tag.SEG[seg].data[40] ,16) local lastbal1=tonumber(tag.SEG[seg].data[41]..tag.SEG[seg].data[42] ,16) local lastbal2=tonumber(tag.SEG[seg].data[43]..tag.SEG[seg].data[44] ,16) test="" -- display decoded/known stuff print("\n------------------------------") print("Tag-ID:\t\t "..uid) print("Stamp:\t\t "..stamp) print("UID-Mapping: \t\t"..("%06d"):format(tonumber(tag.SEG[seg].data[46]..tag.SEG[seg].data[47]..tag.SEG[seg].data[48], 16))) print("------------------------------") print("checksum 1:\t\t "..tag.SEG[seg].data[31].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 19, 30)), tag.SEG[seg].data[31])..")") print("checksum 2:\t\t "..tag.SEG[seg].data[34].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 32, 33)), tag.SEG[seg].data[34])..")") print("checksum 3:\t\t "..tag.SEG[seg].data[37].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 35, 36)), tag.SEG[seg].data[37])..")") print("checksum 4:\t\t "..tag.SEG[seg].data[55].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 46, 54)), tag.SEG[seg].data[55])..")") print("checksum 5:\t\t "..tag.SEG[seg].data[62].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 56, 61)), tag.SEG[seg].data[62])..")") print("checksum 6:\t\t "..tag.SEG[seg].data[73].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 63, 72)), tag.SEG[seg].data[73])..")") print("checksum 7:\t\t "..tag.SEG[seg].data[89].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 74, 88)), tag.SEG[seg].data[89])..")") print("------------------------------") print(string.format("Balance:\t\t %3.2f", balance/100).." ".."("..compareCrc(balancecrc, tag.SEG[seg].data[34])..")") print(string.format("Shadow:\t\t\t %3.2f", mirror/100).." ".."("..compareCrc(balancecrc, tag.SEG[seg].data[37])..")") print("------------------------------") print(string.format("History 1:\t\t %3.2f", lastbal0/100)) print(string.format("History 2:\t\t %3.2f", lastbal1/100)) print(string.format("History 3:\t\t %3.2f", lastbal2/100)) print("------------------------------\n") end --- -- compare two bytes function compareCrc(calc, guess) calc=("%02x"):format(calc) if (calc==guess) then return "valid" else return "error "..calc.."!="..guess end end --- -- compare 4 bytes function compareCrc16(calc, guess) calc=("%04x"):format(calc) if (calc==guess) then return "valid" else return "error "..calc.."!="..guess end end --- -- repair / fix (yet known) crc's of a '3rd Party Cash-Segment' -- not all bytes know until yet !! function fix3rdPartyCash1(uid, data) if(#data==95) then -- checksum 1 data[31]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 19, 30))) -- checksum 2 data[34]=("%02x"):format(utils.Crc8Legic(uid..data[32]..data[33])) -- checksum 3 data[37]=("%02x"):format(utils.Crc8Legic(uid..data[35]..data[36])) -- checksum 4 data[55]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 46, 54))) -- checksum 5 data[62]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 56, 61))) -- checksum 6 data[73]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 63, 72))) -- checksum 7 data[89]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 74, 88))) return data end end --- -- edit uid 3rd party cash function edit3rdUid(mapid, uid, data) mapid=("%06x"):format(tonumber(mapid, 10)) data[46]=string.sub(mapid, 0 ,2) data[47]=string.sub(mapid, 3 ,4) data[48]=string.sub(mapid, 5 ,6) return fix3rdPartyCash1(uid, data) end --- -- edit balance 3rd party cash function edit3rdCash(new_cash, uid, data) new_cash=("%04x"):format(new_cash) data[32]=string.sub(new_cash, 0,2) data[33]=string.sub(new_cash, 3,4) data[34]=("%02x"):format(utils.Crc8Legic(uid..new_cash)) data[35]=string.sub(new_cash, 0,2) data[36]=string.sub(new_cash, 3,4) data[37]=("%02x"):format(utils.Crc8Legic(uid..new_cash)) data[39]=string.sub(new_cash, 0,2) data[40]=string.sub(new_cash, 3,4) data[41]='00' data[42]='00' data[43]='00' data[44]='00' return fix3rdPartyCash1(uid, data) end --- -- repair / fix crc's of a 'Legic-Cash-Segment' function fixLegicCash(data) if(#data==32 and data[7]=="01") then local crc1, crc2, crc3 crc1=("%04x"):format(utils.Crc16(dumpTable(data, "", 0, 12))) crc2=("%04x"):format(utils.Crc16(dumpTable(data, "", 15, 20))) crc3=("%04x"):format(utils.Crc16(dumpTable(data, "", 23, 29))) data[13]=string.sub(crc1, 0, 2) data[14]=string.sub(crc1, 3, 4) data[21]=string.sub(crc2, 0, 2) data[22]=string.sub(crc2, 3, 4) data[30]=string.sub(crc3, 0, 2) data[31]=string.sub(crc3, 3, 4) return data end end --- -- chack for signature of a '3rd Party Cash-Segment' -- not all bytes know until yet !! function check43rdPartyCash1(uid, data) if(#data==95) then -- too explicit checking will avoid fixing ;-) if (compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 19, 30)), data[31])=="valid") then --if (compareCrc(utils.Crc8Legic(uid..data[32]..data[33]), data[34])=="valid") then --if (compareCrc(utils.Crc8Legic(uid..data[35]..data[36]), data[37])=="valid") then --if (compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 56, 61)), data[62])=="valid") then --if (compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 74, 88)), data[89])=="valid") then io.write("3rd Party Cash-Segment detected ") return true --end --end --end --end end end return false end --- -- chack for signature of a 'Legic-Cash-Segment' function check4LegicCash(data) if(#data==32) then local stamp_len=(#data-25) local stamp="" for i=0, stamp_len-1 do stamp=stamp..data[i].." " end if (data[7]=="01") then if (("%04x"):format(utils.Crc16(dumpTable(data, "", 0, 12))) == data[13]..data[14]) then if (("%04x"):format(utils.Crc16(dumpTable(data, "", 15, 20))) == data[21]..data[22]) then if (("%04x"):format(utils.Crc16(dumpTable(data, "", 23, 29))) == data[30]..data[31]) then io.write("Legic-Cash Segment detected ") return true end end end end end return false end --- -- calculate Master-Token crc function calcMtCrc(bytes) --print(#bytes) local cmd=bytes[1]..bytes[2]..bytes[3]..bytes[4]..bytes[7]..bytes[6]..bytes[8] local len=(tonumber(0xfc ,10)-("%d"):format('0x'..bytes[7])) for i=1, len do cmd=cmd..bytes[8+i] end local res=("%02x"):format(utils.Crc8Legic(cmd)) return res end --- -- check all segmnet-crc function checkAllSegCrc(tag) if (istable(tag.SEG[0])) then for i=0, #tag.SEG do crc=calcSegmentCrc(tag, i) tag.SEG[i].crc=crc end else return print("Matser-Token / unsegmented Tag") end end --- -- check all segmnet-crc function checkAllKghCrc(tag) if (istable(tag.SEG[0])) then for i=0, #tag.SEG do crc=calcKghCrc(tag, i) if (tag.SEG[i].kgh) then tag.SEG[i].data[#tag.SEG[i].data-1]=crc end end end end --- -- build kghCrc credentials function kghCrcCredentials(tag, segid) if (istable(tag) and istable(tag.SEG[0])) then local x='00' if (type(segid)=="string") then segid=tonumber(segid,10) end if (segid>0) then x='93' end local cred = tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2..("%02x"):format(tag.SEG[segid].WRP) cred = cred..("%02x"):format(tag.SEG[segid].WRC)..("%02x"):format(tag.SEG[segid].RD)..x for i=0, #tag.SEG[segid].data-2 do cred = cred..tag.SEG[segid].data[i] end return cred end end --- -- validate kghCRC to segment in tag-table function checkKghCrc(tag, segid) if (type(tag.SEG[segid])=='table') then if (tag.data[3]=="11" and tag.raw=="9f" and tag.SSC=="ff") then local data=kghCrcCredentials(tag, segid) if (("%02x"):format(utils.Crc8Legic(data))==tag.SEG[segid].data[tag.SEG[segid].len-5-1]) then return true; end else return false; end else oops("'Kaba Group header' detected but no Segment-Data found") end end --- -- calcuate kghCRC for a given segment function calcKghCrc(tag, segid) if (istable(tag.SEG[0])) then -- check if a 'Kaber Group Header' exists local i local data=kghCrcCredentials(tag, segid) return ("%02x"):format(utils.Crc8Legic(data)) end end --- -- build segmentCrc credentials function segmentCrcCredentials(tag, segid) if (istable(tag.SEG[0])) then local cred = tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2 cred = cred ..tag.SEG[segid].raw[1]..tag.SEG[segid].raw[2]..tag.SEG[segid].raw[3]..tag.SEG[segid].raw[4] return cred else return print("Master-Token / unsegmented Tag!") end end --- -- validate segmentCRC for a given segment function checkSegmentCrc(tag, segid) local data=segmentCrcCredentials(tag, segid) if (("%02x"):format(utils.Crc8Legic(data))==tag.SEG[segid].crc) then return true end return false end --- -- calculate segmentCRC for a given segment function calcSegmentCrc(tag, segid) if (istable(tag.SEG[0])) then -- check if a 'Kaber Group Header' exists local data=segmentCrcCredentials(tag, segid) return ("%02x"):format(utils.Crc8Legic(data)) end end --- -- helptext for modify-mode function modifyHelp() local t=[[ Data I/O Segment Manipulation Token-Data ----------------- -------------------- ----------------- rt => read Tag as => add Segment mt => make Token wt => write Tag es => edit Segment Header et => edit Token data ct => copy io Tag ed => edit Segment Data tk => toggle KGH-Flag tc => copy oi Tag rs => remove Segment tt => toggle Tag cc => check Segment-CRC File I/O di => dump inTag ck => check KGH ----------------- do => dump outTag e3p => edit 3rd Party Cash lf => load File ds => dump Segment sf => save File dlc => dump Legic-Cash xf => xor to File d3p => dump 3rd Party Cash r3p => raw 3rd Party Cash q => quit ]] return t end --- -- modify Tag (interactive) function modifyMode() local i, backupTAG, outTAG, inTAG, outfile, infile, sel, segment, bytes, outbytes actions = { ["h"] = function(x) print(" Version: "..version); print(modifyHelp().."\n".."tags im Memory: "..(istable(inTAG) and ((currentTag=='inTAG') and "*mainTAG" or "mainTAG") or "").." "..(istable(backupTAG) and ((currentTag=='backupTAG') and "*backupTAG" or "backupTAG") or "")) end, ["rt"] = function(x) inTAG=readFromPM3(); --actions.di() end, ["wt"] = function(x) if(istable(inTAG.SEG)) then local taglen=22 if (istable(inTAG.Bck)) then for i=0, #inTAG.SEG do taglen=taglen+inTAG.SEG[i].len+5 end end local uid_old=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 -- read new tag (output tag) outTAG=readFromPM3() outbytes=tagToBytes(outTAG) -- copy 'inputbuffer' to 'outputbuffer' inTAG.MCD = outbytes[1] inTAG.MSN0 = outbytes[2] inTAG.MSN1 = outbytes[3] inTAG.MSN2 = outbytes[4] inTAG.MCC = outbytes[5] -- recheck all segments-crc/kghcrc (only on a credential) if(istable(inTAG.Bck)) then checkAllSegCrc(inTAG) checkAllKghCrc(inTAG) local uid_new=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 for i=0, #inTAG.SEG do if (check43rdPartyCash1(uid_old, inTAG.SEG[i].data)) then io.write(" - fixing known checksums ... ") inTAG.SEG[i].data=fix3rdPartyCash1(uid_new, inTAG.SEG[i].data) io.write(" done\n") end end end --get bytes from ready outTAG bytes=tagToBytes(inTAG) -- mater-token-crc if (inTAG.Type~="SAM") then bytes[22]=calcMtCrc(bytes) end if (bytes) then writeFile(bytes, 'MylegicClone.hex') writeToTag(bytes, taglen, 'MylegicClone.hex') actions.rt('') end end end, --- -- switich and copy virtual tags ["ct"] = function(x) print("copy mainTAG to backupTAG") outTAG=deepCopy(inTAG) backupTAG=deepCopy(inTAG) end, ["tc"] = function(x) print("copy backupTAG to mainTAG") inTAG=deepCopy(backupTAG) end, ["tt"] = function(x) print("toggle to "..((currentTag=='inTAG') and "backupTAG" or "mainTAG")) if(currentTag=="inTAG") then outTAG=deepCopy(inTAG) inTAG=deepCopy(backupTAG) currentTag='backupTAG' else inTAG=deepCopy(outTAG) currentTag='inTAG' end end, ["lf"] = function(x) if (file_check(x)) then filename=x else filename=input("enter filename: ", "legic.temp") end inTAG=readFile(filename) end, ["sf"] = function(x) if(istable(inTAG)) then outfile=input("enter filename:", "legic.temp") bytes=tagToBytes(inTAG) --bytes=xorBytes(bytes, inTAG.MCC) if (bytes) then writeFile(bytes, outfile) end end end, ["xf"] = function(x) if(istable(inTAG)) then outfile=input("enter filename:", "legic.temp") crc=input("enter new crc: ('00' for a plain dump)", inTAG.MCC) print("obfuscate witth: "..crc) bytes=tagToBytes(inTAG) bytes[5]=crc if (bytes) then writeFile(bytes, outfile) end end end, ["di"] = function(x) if (istable(inTAG)) then local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 if(istable(inTAG.SEG[0])) then for i=0, #inTAG.SEG do if(check43rdPartyCash1(uid, inTAG.SEG[i].data)) then io.write("in Segment index: "..inTAG.SEG[i].index.."\n") elseif(check4LegicCash(inTAG.SEG[i].data)) then io.write("in Segment index: "..inTAG.SEG[i].index.."\n") lc=true; lci=inTAG.SEG[i].index; end end end print("\n"..dumpTag(inTAG).."\n") if (lc) then actions["dlc"](lci) end end end, ["do"] = function(x) if (istable(backupTAG)) then print("\n"..dumpTag(backupTAG).."\n") end end, ["ds"] = function(x) if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10) else sel=selectSegment(inTAG) end if (sel) then print("\n"..(dumpSegment(inTAG, sel) or "no Segments available").."\n") end end, ["es"] = function(x) if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10) else sel=selectSegment(inTAG) end if (sel) then if(istable(inTAG.SEG[0])) then inTAG=editSegment(inTAG, sel) inTAG.SEG[sel]=regenSegmentHeader(inTAG.SEG[sel]) else print("no Segments in Tag") end end end, ["as"] = function(x) if (istable(inTAG.SEG[0])) then inTAG=addSegment(inTAG) inTAG.SEG[#inTAG.SEG-1]=regenSegmentHeader(inTAG.SEG[#inTAG.SEG-1]) inTAG.SEG[#inTAG.SEG]=regenSegmentHeader(inTAG.SEG[#inTAG.SEG]) else print("Master-Token / unsegmented Tag!") end end, ["rs"] = function(x) if (istable(inTAG.SEG[0])) then if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10) else sel=selectSegment(inTAG) end inTAG=delSegment(inTAG, sel) for i=0, #inTAG.SEG do inTAG.SEG[i]=regenSegmentHeader(inTAG.SEG[i]) end end end, ["ed"] = function(x) if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10) else sel=selectSegment(inTAG) end if (sel) then inTAG.SEG[sel].data=editSegmentData(inTAG.SEG[sel].data) end end, ["et"] = function(x) if (istable(inTAG)) then editTag(inTAG) end end, ["mt"] = function(x) inTAG=makeToken(); actions.di() end, ["ts"] = function(x) if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10) else sel=selectSegment(inTAG) end regenSegmentHeader(inTAG.SEG[sel]) end, ["tk"] = function(x) if (istable(inTAG) and istable(inTAG.SEG[0])) then if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10) else sel=selectSegment(inTAG) end if(inTAG.SEG[sel].kgh) then inTAG.SEG[sel].kgh=false else inTAG.SEG[sel].kgh=true end end end, ["k"] = function(x) if (type(x)=="string" and string.len(x)>0) then print(("%02x"):format(utils.Crc8Legic(x))) end end, ["xb"] = function(x) end, ["xc"] = function(x) if (istable(inTAG) and istable(inTAG.SEG[0])) then if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10) else sel=selectSegment(inTAG) end print("k "..kghCrcCredentials(inTAG, sel)) end end, ["dlc"] = function(x) local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 -- if segment index was user defined if (type(x)=="string" and string.len(x)>0) then x=tonumber(x,10) print(string.format("User-Selected Index %02d", x)) -- or try to find match else x=autoSelectSegment(inTAG, "legiccash") end local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 if (istable(inTAG.SEG[x])) then io.write("in Segment "..inTAG.SEG[x].index.." :\n") print("--------------------------------\n\tLegic-Cash Values\n--------------------------------") local limit, curr, balance, rid, tcv -- currency of balance & limit curr=currency[inTAG.SEG[x].data[8]..inTAG.SEG[x].data[9]] -- maximum balance limit=string.format("%4.2f", tonumber(inTAG.SEG[x].data[10]..inTAG.SEG[x].data[11]..inTAG.SEG[x].data[12], 16)/100) -- current balance balance=string.format("%4.2f", tonumber(inTAG.SEG[x].data[15]..inTAG.SEG[x].data[16]..inTAG.SEG[x].data[17], 16)/100) -- reader-id who wrote last transaction rid=tonumber(inTAG.SEG[x].data[18]..inTAG.SEG[x].data[19]..inTAG.SEG[x].data[20], 16) -- transaction counter value tcv=tonumber(inTAG.SEG[x].data[29], 16) print("Currency:\t\t "..curr) print("Limit:\t\t\t "..limit) print("Balance:\t\t "..balance) print("Transaction Counter:\t "..tcv) print("Reader-ID:\t\t "..rid.."\n--------------------------------\n") end --end end, ["df"] = function(x) actions["lf"](x) res="" for i=0, #inTAG.SEG[1].data do res=res..inTAG.SEG[1].data[i] end print(res) end, ["d3p"] = function(x) local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 -- if segment index was user defined if (type(x)=="string" and string.len(x)>0) then x=tonumber(x,10) print(string.format("User-Selected Index %02d", x)) -- or try to find match else x=autoSelectSegment(inTAG, "3rdparty") end if (istable(inTAG) and istable(inTAG.SEG[x]) and inTAG.SEG[x].len == 100) then uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 if (check43rdPartyCash1(uid, inTAG.SEG[x].data)) then dump3rdPartyCash1(inTAG, x) end end end, ["r3p"] = function(x) local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 -- if segment index was user defined if (type(x)=="string" and string.len(x)>0) then x=tonumber(x,10) print(string.format("User-Selected Index %02d", x)) -- or try to find match else x=autoSelectSegment(inTAG, "3rdparty") end local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 if (istable(inTAG.SEG[x])) then print("\n\t\tStamp : "..dumpTable(inTAG.SEG[x].data, "", 0 , 2)) print("\t\tBlock 0: "..dumpTable(inTAG.SEG[x].data, "", 3 , 18)) print() print("\t\tBlock 1: "..dumpTable(inTAG.SEG[x].data, "", 19, 30)) print("checksum 1: Tag-ID .. Block 1 => LegicCrc8 = "..inTAG.SEG[x].data[31].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(inTAG.SEG[x].data, "", 19, 30)), inTAG.SEG[x].data[31])..")") print() print("\t\tBlock 2: "..dumpTable(inTAG.SEG[x].data, "", 32, 33)) print("checksum 2: Block 2 => LegicCrc8 = "..inTAG.SEG[x].data[34].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(inTAG.SEG[x].data, "", 32, 33)), inTAG.SEG[x].data[34])..")") print() print("\t\tBlock 3: "..dumpTable(inTAG.SEG[x].data, "", 35, 36)) print("checksum 3: Block 3 => LegicCrc8 = "..inTAG.SEG[x].data[37].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(inTAG.SEG[x].data, "", 35, 36)), inTAG.SEG[x].data[37])..")") print() print("\t\tyet unknown: "..inTAG.SEG[x].data[38]) print() print("\t\tHisatory 1: "..dumpTable(inTAG.SEG[x].data, "", 39, 40)) print("\t\tHisatory 2: "..dumpTable(inTAG.SEG[x].data, "", 41, 42)) print("\t\tHisatory 3: "..dumpTable(inTAG.SEG[x].data, "", 43, 44)) print() print("\t\tyet unknown: "..inTAG.SEG[x].data[45]) print() print("\t\tKGH-UID HEX: "..dumpTable(inTAG.SEG[x].data, "", 46, 48)) print("\t\tBlock 4: "..dumpTable(inTAG.SEG[x].data, "", 49, 54)) print("checksum 4: Tag-ID .. KGH-UID .. Block 4 => LegicCrc8 = "..inTAG.SEG[x].data[55].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(inTAG.SEG[x].data, "", 46, 54)), inTAG.SEG[x].data[55])..")") print() print("\t\tBlock 5: "..dumpTable(inTAG.SEG[x].data, "", 56, 61)) print("checksum 5: Tag-ID .. Block 5 => LegicCrc8 = "..inTAG.SEG[x].data[62].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(inTAG.SEG[x].data, "", 56, 61)), inTAG.SEG[x].data[62])..")") print() print("\t\tBlock 6: "..dumpTable(inTAG.SEG[x].data, "", 63, 72)) print("checksum 6: Tag-ID .. Block 6 => LegicCrc8 = "..inTAG.SEG[x].data[73].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(inTAG.SEG[x].data, "", 63, 72)), inTAG.SEG[x].data[73])..")") print() print("\t\tBlock 7: "..dumpTable(inTAG.SEG[x].data, "", 74, 88)) print("checksum 7: Tag-ID .. Block 7 => LegicCrc8 = "..inTAG.SEG[x].data[89].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(inTAG.SEG[x].data, "", 74, 88)), inTAG.SEG[x].data[89])..")") print() print("\t\tBlock 8: "..dumpTable(inTAG.SEG[x].data, "", 90, 94)) end end, ["e3p"] = function(x) local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 -- if segment index was user defined if (type(x)=="string" and string.len(x)>0) then x=tonumber(x,10) print(string.format("User-Selected Index %02d", x)) -- or try to find match else x=autoSelectSegment(inTAG, "3rdparty") end if (istable(inTAG) and istable(inTAG.SEG[x]) and inTAG.SEG[x].len == 100) then --if (check43rdPartyCash1(uid, inTAG.SEG[x].data)) then -- change Balance if (confirm("\nedit Balance?")) then local new_cash=input("enter new Balance without comma or currency", "100") inTAG.SEG[x].data=edit3rdCash(new_cash, uid, inTAG.SEG[x].data) end -- change User-ID (used for online-account-mapping) if (confirm("\nedit UserID-Mapping?")) then local new_mapid=input("enter new UserID (6-digit value)", "012345") inTAG.SEG[x].data=edit3rdUid(new_mapid, uid, inTAG.SEG[x].data) end if (confirm("\nedit Stamp?")) then local new_stamp=input("enter new Stamp", getSegmentStamp(inTAG.SEG[x])) inTAG.SEG[x].data=editStamp(new_stamp, uid, inTAG.SEG[x].data) new_stamp=getSegmentStamp(inTAG.SEG[x], 'true') print("stamp_bytes: "..#new_stamp) -- replace stamp in 'block 1' also io.write("editing stamp in Block 1 also ") for i=20, (20+#new_stamp-1) do inTAG.SEG[x].data[i]=new_stamp[i-19] io.write("."); end print(" done") -- fix known checksums inTAG.SEG[x].data=fix3rdPartyCash1(uid, inTAG.SEG[x].data) end -- print out new settings dump3rdPartyCash1(inTAG, x) --end end end, ["gs"] = function(x) if(type(x)=="string" and string.len(x)>=2) then x=tonumber(x, 10) else x=selectSegment(inTAG) end local stamp=getSegmentStamp(inTAG.SEG[x]) print("Stamp : "..stamp) stamp=str2bytes(stamp) print("lenght: "..#stamp) end, ["c6"] = function(x) local crc16=string.format("%4.04x", utils.Crc16(x)) print(string.sub(crc16, 0,2).." "..string.sub(crc16, 3,4)) end, ["cc"] = function(x) if (istable(inTAG)) then checkAllSegCrc(inTAG) end end, ["cb"] = function(x) if (istable(inTAG)) then print("purge BackupArea") inTAG=clearBackupArea(inTAG) end end, ["f3p"] = function(x) if(type(x)=="string" and string.len(x)>=2) then x=tonumber(x, 10) else x=selectSegment(inTAG) end if (istable(inTAG.SEG[x])) then local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2 inTAG.SEG[x].data=fix3rdPartyCash1(uid, inTAG.SEG[x].data) end end, ["ck"] = function(x) if (istable(inTAG)) then checkAllKghCrc(inTAG) end end, } print("modify-modus! enter 'h' for help or 'q' to quit") repeat ic=input("Legic command? ('h' for help - 'q' for quit)", "h") -- command actions if (type(actions[string.lower(string.sub(ic,0,3))])=='function') then actions[string.lower(string.sub(ic,0,3))](string.sub(ic,5)) elseif (type(actions[string.lower(string.sub(ic,0,2))])=='function') then actions[string.lower(string.sub(ic,0,2))](string.sub(ic,4)) elseif (type(actions[string.lower(string.sub(ic,0,1))])=='function') then actions[string.lower(string.sub(ic,0,1))](string.sub(ic,3)) else actions.h('') end until (string.sub(ic,0,1)=="q") end function clearBackupArea(tag) for i=1, #tag.Bck do tag.Bck[i]='00' end return tag end function getSegmentStamp(seg, bytes) local stamp="" local stamp_len=7 --- the 'real' stamp on MIM is not really easy to tell for me since the 'data-block' covers stamp0..stampn+data0..datan -- there a no stamps longer than 7 bytes & they are write-protected by default , and I have not seen user-credntials -- with stamps smaller 3 bytes (except: Master-Token) -- WRP -> Read/Write Protection -- WRC -> Read/Write Condition -- RD depends on WRC - if WRC > 0 and RD=1: only reader with matching #WRC of Stamp-bytes in thier Database have Read-Access to the Tag if (seg.WRP<7) then stamp_len=(seg.WRP) end for i=1, (stamp_len) do stamp=stamp..seg.data[i-1] end if (bytes) then stamp=str2bytes(stamp) return stamp else return stamp end end function str2bytes(s) local res={} if (string.len(s)%2~=0) then return print("stamp should be a even hexstring e.g.: deadbeef or 0badc0de") end for i=1, string.len(s), 2 do table.insert(res, string.sub(s,i,(i+1))) end return res end function editStamp(new_stamp, uid, data) local stamp=str2bytes(new_stamp) for i=0, #stamp-1 do data[i]=stamp[i+1] end -- now fill in stamp for i=0, (string.len(new_stamp)/2)-1 do data[i]=stamp[i+1] end return fix3rdPartyCash1(uid, data) end function autoSelectSegment(tag, s) local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2 local x=#tag.SEG+1 local res = false io.write("autoSelect ") --- search for desired segment-type -- 3rd Party Segment if (s=="3rdparty") then repeat io.write(". ") x=x-1 res=check43rdPartyCash1(uid, tag.SEG[x].data) until ( res or x==0 ) end -- Legic-Cash Segment if (s=="legiccash") then repeat io.write(". ") x=x-1 res=check4LegicCash(tag.SEG[x].data) until ( res or x==0 ) end --- -- segment found if (res) then io.write("\nautoselected Index: "..string.format("%02d", x).."\n") return x end --- -- nothing found io.write("no Segment found\n") return -1 end --- main function function main(args) if (#args == 0 ) then modifyMode() end --- variables local inTAG, backupTAG, outTAG, outfile, interactive, crc, ofs, cfs, dfs -- just a spacer for better readability print() --- parse arguments for o, a in getopt.getopt(args, 'hrmi:do:c:') do -- display help if o == "h" then return help(); end -- read tag from PM3 if o == "r" then inTAG=readFromPM3() end -- input file if o == "i" then inTAG=readFile(a) end -- dump virtual-Tag if o == "d" then dfs=true end -- interacive modifying if o == "m" then interactive=true; modifyMode() end -- xor (e.g. for clone or plain file) if o == "c" then cfs=true; crc=a end -- output file if o == "o" then outfile=a; ofs=true end end -- file conversion (output to file) if (ofs) then -- dump infile / tag-read if (dfs) then print("-----------------------------------------") print(dumpTag(inTAG)) end bytes=tagToBytes(inTAG) if (cfs) then -- xor willl be done in function writeFile -- with the value of byte[5] bytes[5]=crc end -- write to outfile if (bytes) then writeFile(bytes, outfile) --- read real tag into virtual tag -- inTAG=readFromPM3() end --- or simply use the bytes that where wriiten inTAG=bytesToTag(bytes, inTAG) -- show new content if (dfs) then print("-----------------------------------------") print(dumpTag(inTAG)) end end end end -- Creates a complete/deep copy of the data function deepCopy(object) local lookup_table = {} local function _copy(object) if type(object) ~= "table" then return object elseif lookup_table[object] then return lookup_table[object] end local new_table = {} lookup_table[object] = new_table for index, value in pairs(object) do new_table[_copy(index)] = _copy(value) end return setmetatable(new_table, getmetatable(object)) end return _copy(object) end --- start main(args)