mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-20 15:26:13 +08:00
91 lines
2.4 KiB
Lua
91 lines
2.4 KiB
Lua
local getopt = require('getopt')
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local utils = require('utils')
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copyright = ''
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author = 'Iceman'
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version = 'v1.0.1'
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desc = [[
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This script calculates many checksums (CRC) over the provided hex input.
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]]
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example = [[
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script run e -b 010203040506070809
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script run e -b 010203040506070809 -w 16
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]]
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usage = [[
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Arguments:
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-b data in hex
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-w bitwidth of the CRC family of algorithm. <optional> defaults to all known CRC presets.
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]]
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---
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-- A debug printout-function
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local function dbg(args)
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if not DEBUG then return end
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if type(args) == 'table' then
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local i = 1
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while args[i] do
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dbg(args[i])
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i = i+1
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end
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else
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print('###', args)
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end
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end
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---
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-- This is only meant to be used when errors occur
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local function oops(err)
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print('ERROR:', err)
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core.clearCommandBuffer()
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return nil, err
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end
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---
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-- Usage help
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local function help()
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print(copyright)
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print(author)
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print(version)
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print(desc)
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print('Example usage')
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print(example)
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print(usage)
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end
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---
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-- The main entry point
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function main(args)
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local data
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local width = 0
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-- Read the parameters
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for o, a in getopt.getopt(args, 'hb:w:') do
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if o == 'h' then return help() end
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if o == 'b' then data = a end
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if o == 'w' then width = a end
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end
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data = data or '01020304'
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width = width or 0
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print( string.rep('-',60) )
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print('Bit width of CRC | '..width)
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print('Bytes | '..data)
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print('')
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print( ('%-20s| %-16s| %s'):format('Model','CRC', 'CRC reverse','bigEnd', 'bigEnd','little','little'))
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print( string.rep('-',60) )
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local lists, err = core.reveng_models(width)
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if lists == nil then return oops(err) end
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for _,i in pairs(lists) do
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if string.len(i) > 1 then
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local a1 = core.reveng_runmodel(i, data, false, '0')
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local a2 = core.reveng_runmodel(i, data, true, '0')
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local a3 = core.reveng_runmodel(i, data, false, 'b')
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local a4 = core.reveng_runmodel(i, data, false, 'B')
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local a5 = core.reveng_runmodel(i, data, false, 'l')
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local a6 = core.reveng_runmodel(i, data, false, 'L')
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print( ('%-20s| %-16s| %-16s| %-16s| %-16s| %-16s| %-16s'):format(i, a1:upper(), a2:upper(),a3:upper(),a4:upper(),a5:upper(),a6:upper() ) )
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end
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end
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end
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main(args)
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