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