mirror of
https://github.com/MikaylaFischler/cc-mek-scada.git
synced 2024-08-30 18:22:34 +00:00
105 lines
3.0 KiB
Lua
105 lines
3.0 KiB
Lua
require("/initenv").init_env()
|
|
|
|
local pbkdf2 = require("lockbox.kdf.pbkdf2")
|
|
local AES128Cipher = require("lockbox.cipher.aes128")
|
|
local HMAC = require("lockbox.mac.hmac")
|
|
local SHA1 = require("lockbox.digest.sha1")
|
|
local SHA2_224 = require("lockbox.digest.sha2_224")
|
|
local SHA2_256 = require("lockbox.digest.sha2_256")
|
|
local Stream = require("lockbox.util.stream")
|
|
local Array = require("lockbox.util.array")
|
|
|
|
local CBCMode = require("lockbox.cipher.mode.cbc")
|
|
local CFBMode = require("lockbox.cipher.mode.cfb")
|
|
local OFBMode = require("lockbox.cipher.mode.ofb")
|
|
local CTRMode = require("lockbox.cipher.mode.ctr")
|
|
|
|
local ZeroPadding = require("lockbox.padding.zero")
|
|
|
|
local comms = require("scada-common.comms")
|
|
local util = require("scada-common.util")
|
|
|
|
local start = util.time()
|
|
|
|
local keyd = pbkdf2()
|
|
|
|
keyd.setPassword("mypassword")
|
|
keyd.setSalt("no_salt_thanks")
|
|
keyd.setIterations(16)
|
|
keyd.setBlockLen(4)
|
|
keyd.setDKeyLen(16)
|
|
keyd.setPRF(HMAC().setBlockSize(64).setDigest(SHA2_256))
|
|
keyd.finish()
|
|
|
|
util.println("pbkdf2: took " .. (util.time() - start) .. "ms")
|
|
util.println(keyd.asHex())
|
|
|
|
local pkt = comms.modbus_packet()
|
|
pkt.make(1, 2, 7, {0, 1, 2, 3, 4, 5, 6, 7, 8, 9})
|
|
local spkt = comms.scada_packet()
|
|
spkt.make(1, 1, pkt.raw_sendable())
|
|
|
|
start = util.time()
|
|
local data = textutils.serialize(spkt.raw_sendable(), { allow_repetitions = true, compact = true })
|
|
|
|
util.println("packet serialize: took " .. (util.time() - start) .. "ms")
|
|
util.println("message: " .. data)
|
|
|
|
start = util.time()
|
|
local v = {
|
|
cipher = CTRMode.Cipher,
|
|
decipher = CTRMode.Decipher,
|
|
iv = Array.fromHex("000102030405060708090A0B0C0D0E0F"),
|
|
key = Array.fromHex(keyd.asHex()),
|
|
padding = ZeroPadding
|
|
}
|
|
util.println("v init: took " .. (util.time() - start) .. "ms")
|
|
|
|
start = util.time()
|
|
local cipher = v.cipher()
|
|
.setKey(v.key)
|
|
.setBlockCipher(AES128Cipher)
|
|
.setPadding(v.padding);
|
|
util.println("cipher init: took " .. (util.time() - start) .. "ms")
|
|
|
|
start = util.time()
|
|
local cipherOutput = cipher
|
|
.init()
|
|
.update(Stream.fromArray(v.iv))
|
|
.update(Stream.fromString(data))
|
|
.asHex();
|
|
util.println("encrypt: took " .. (util.time() - start) .. "ms")
|
|
util.println("ciphertext: " .. cipherOutput)
|
|
|
|
start = util.time()
|
|
local decipher = v.decipher()
|
|
.setKey(v.key)
|
|
.setBlockCipher(AES128Cipher)
|
|
.setPadding(v.padding);
|
|
util.println("decipher init: took " .. (util.time() - start) .. "ms")
|
|
|
|
start = util.time()
|
|
local plainOutput = decipher
|
|
.init()
|
|
.update(Stream.fromArray(v.iv))
|
|
.update(Stream.fromHex(cipherOutput))
|
|
.asHex();
|
|
util.println("decrypt: took " .. (util.time() - start) .. "ms")
|
|
local a = Stream.fromHex(plainOutput)
|
|
local b = Stream.toString(a)
|
|
util.println("plaintext: " .. b)
|
|
|
|
local msg = "000102030405060708090A0B0C0D0E0F" .. cipherOutput
|
|
|
|
start = util.time()
|
|
local hash = HMAC()
|
|
.setBlockSize(64)
|
|
.setDigest(SHA1)
|
|
.setKey(keyd)
|
|
.init()
|
|
.update(Stream.fromHex(msg))
|
|
.finish()
|
|
.asHex();
|
|
util.println("hmac: took " .. (util.time() - start) .. "ms")
|
|
util.println("hash: " .. hash)
|