t55_chk_lua

    Author: jareckib - created 02.02.2025
    version v1.00

    A simple script for searching the password for T5577. The script creates a
    dictionary starting from the entered starting year to the entered ending year.
    There are two search methods - DDMMYYYY or YYYYMMDD. Checking the entire year
    takes about 1 minute and 50 seconds. Date from 1900 to 2100. The script may be
    useful if the password is, for example, a date of birth.

    Usage:
    script run t55_chk [-s start_year] [-e end_year] [-d | -y]

    Options:
    -h                    Show this help message
    -s                    Starting year (required)
    -e                    Ending year (default: current year)
    -d                    Search method: DDMMYYYY
    -y                    Search method: YYYYMMDD

    Examples:
    script run t55_chk -s 1999 -d             - start from 1999, end year is current year, method 01011999
    script run t55_chk -s 1999 -y             - start from 1999, end year is current year, method 19990101
    script run t55_chk -s 1999 -e 2001 -y     - start from 1999, end year 2001, method 19990101
    script run t55_chk -s 1999 -e 2001 -d     - start from 1999, end year 2001, method 01011999

Signed-off-by: Jarek Barwinski <116510448+jareckib@users.noreply.github.com>

client/luascripts/t55_chk.lua

@@ -0,0 +1,122 @@
+local os = require("os")
+local ac = require('ansicolors')
+local getopt = require('getopt')
+local dir = os.getenv('HOME') .. '/proxmark3/client/dictionaries/'
+local dictionary_path = dir .. 'T5577date.dic'
+local cyan = ac.cyan
+local res = ac.reset
+
+author = '    Author: jareckib - created 02.02.2025'
+version = '    version v1.00'
+desc = [[  
+    A simple script for searching the password for T5577. The script creates a
+    dictionary starting from the entered starting year to the entered ending year.
+    There are two search methods - DDMMYYYY or YYYYMMDD. Checking the entire year
+    takes about 1 minute and 50 seconds. Date from 1900 to 2100. The script may be
+    useful if the password is, for example, a date of birth.
+]]
+
+usage = [[
+    script run t55_chk [-s start_year] [-e end_year] [-d | -y]
+]]
+options = [[
+    -h                    Show this help message
+    -s                    Starting year (required)
+    -e                    Ending year (default: current year)
+    -d                    Search method: DDMMYYYY
+    -y                    Search method: YYYYMMDD
+]]
+examples = [[
+    script run t55_chk -s 1999 -d             - start from 1999, end year is current year, method 01011999
+    script run t55_chk -s 1999 -y             - start from 1999, end year is current year, method 19990101
+    script run t55_chk -s 1999 -e 2001 -y     - start from 1999, end year 2001, method 19990101
+    script run t55_chk -s 1999 -e 2001 -d     - start from 1999, end year 2001, method 01011999
+]]
+
+local function help()
+    print(ac.green..author..res)
+    print(version)
+    print(desc)
+    print(cyan..'    Usage:'..res)
+    print(usage)
+    print(cyan..'    Options:'..res)
+    print(options)
+    print(cyan..'    Examples:'..res)
+    print(examples)
+end
+
+local function generate_dictionary(start_year, end_year, mode)
+    local file = io.open(dictionary_path, "w")
+    if not file then
+        print(ac.yellow .. '  ERROR: ' .. res .. 'Cannot create T5577date.dic')
+        return false
+    end
+
+    for year = start_year, end_year do
+        for month = 1, 12 do
+            for day = 1, 31 do
+                local entry = (mode == "y") and 
+                    (string.format("%04d%02d%02d", year, month, day)) or 
+                    (string.format("%02d%02d%04d", day, month, year))
+                file:write(entry .. "\n")
+            end
+        end
+    end
+
+    file:close()
+    return true
+end
+
+local function oops(err)
+    core.console('clear')
+    print( string.rep('--',39) )
+    print( string.rep('--',39) )
+    print(ac.red..'               ERROR:'..res.. err)
+    print( string.rep('--',39) )
+    print( string.rep('--',39) )
+    return nil, err
+end
+
+local function main(args)
+    if #args == 0 then return help() end
+
+    local start_year, end_year, mode = nil, nil, nil
+    local current_year = tonumber(os.date("%Y"))
+
+    for o, a in getopt.getopt(args, 'hs:e:dy') do
+        if o == 'h' then return help() end
+        if o == 's' then 
+            start_year = tonumber(a)
+            if not start_year then return oops('Invalid start year') end
+        end
+        if o == 'e' then 
+            end_year = tonumber(a)
+            if not end_year then return oops('Invalid end year (-e)') end
+        end
+        if o == 'd' then mode = "d" end
+        if o == 'y' then mode = "y" end
+    end
+
+    if not start_year then return oops('Starting year is required') end
+    if start_year < 1900 or start_year > 2100 then 
+        return oops('Start year must be between 1900 and 2100') 
+    end
+    if args[#args] == "-e" then return oops('Ending year cannot be empty') end
+    if not end_year then end_year = current_year end
+    if end_year < 1900 or end_year > 2100 then 
+        return oops('End year must be between 1900 and 2100') 
+    end
+
+    if end_year < start_year then return oops('End year cannot be earlier than start year') end
+    if not mode then return oops('You must select searching method'..cyan..' -d'..res.. ' or '..cyan.. '-y'..res) end
+
+    if generate_dictionary(start_year, end_year, mode) then
+        print(ac.green .. "  File created: " .. dictionary_path .. res)
+        print(cyan .. "  Starting password testing on T5577..." .. res)
+        core.console('lf t55 chk -f ' .. dictionary_path) 
+    else
+        return oops('Problem saving the file')
+    end
+end
+
+main(args)