Gradle

cryptography = { module ="com.runetopic.cryptography:cryptography", version.ref"1.2.0-SNAPSHOT" }

XTEA

Decryption

val bytes= byteArrayOf(0,1,2,3,4,5,6,7)val decrypted= bytes.fromXTEA(rounds=32, keys=IntArray(4))val expected="[-22, 56, -103, 36, 1, 86, -95, 47]"assertEquals(expected, decrypted.contentToString())

Encryption

val bytes= byteArrayOf(0,1,2,3,4,5,6,7)val encrypted= bytes.toXTEA(rounds=32, keys=IntArray(4))val expected="[66, 17, 12, 6, 43, 119, -47, 120]"assertEquals(expected, encrypted.contentToString())

Whirlpool

Hashing

val input="The quick brown fox jumps over the lazy dog"val hash= input.toByteArray().toWhirlpool(rounds=10, size=64)val expected="B97DE512E91E3828B40D2B0FDCE9CEB3C4A71F9BEA8D88E75C4FA854DF36725FD2B52EB6544EDCACD6F8BEDDFEA403CB55AE31F03AD62A5EF54E42EE82C3FB35"assertEquals(expected, hash.joinToString("") {"%02X".format(it) })

ISAAC

val seed=IntArray(4)val isaac= seed.toISAAC()val random= isaac.getNext()val expected=405143795assertEquals(expected, random)

Huffman

Input

val input="A_DEAD_DAD_CEDED_A_BAD_BABE_A_BEADED_ABACA_BED"// The sizes below can be loaded from: index(indexId = 10).group(groupName = "huffman").file(0).dataval sizes= byteArrayOf(22,22,22,22,22,22,21,22,22,20,22,22,22,21,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,3,8,22,16,22,16,17,7,13,13,13,16,7,10,6,16,10,11,12,12,12,12,13,13,14,14,11,14,19,15,17,8,11,9,10,10,10,10,11,10,9,7,12,11,10,10,9,10,10,12,10,9,8,12,12,9,14,8,12,17,16,17,22,13,21,4,7,6,5,3,6,6,5,4,10,7,5,6,4,4,6,10,5,4,4,5,7,6,10,6,10,22,19,22,14,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,21,22,21,22,22,22,21,22,22)

Compression

val huffman=Huffman(sizes= sizes)val compressed=ByteArray(256)val offset= input.compressHuffman(huffman, compressed)assertEquals(60, offset)

Decompression

val decompressedString= compressed.decompressHuffman(huffman, input.length)assertEquals(input, decompressedString)