#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from ... import TestUnitBase

from refinery.lib.crypto import BlockCipher, BlockCipherFactory, rotl16, rotr16, CIPHER_MODES
from refinery.units.crypto.cipher.rc2 import rc2, StandardBlockCipherUnit

import array


class RC2(BlockCipher):
    block_size = 8
    key_size = range(5, 128 + 1)
    _key: array.array

    @property
    def key(self):
        return self._key

    @key.setter
    def key(self, key):
        sbox = bytearray((
            0xD9, 0x78, 0xF9, 0xC4, 0x19, 0xDD, 0xB5, 0xED, 0x28, 0xE9, 0xFD, 0x79, 0x4A, 0xA0, 0xD8, 0x9D,
            0xC6, 0x7E, 0x37, 0x83, 0x2B, 0x76, 0x53, 0x8E, 0x62, 0x4C, 0x64, 0x88, 0x44, 0x8B, 0xFB, 0xA2,
            0x17, 0x9A, 0x59, 0xF5, 0x87, 0xB3, 0x4F, 0x13, 0x61, 0x45, 0x6D, 0x8D, 0x09, 0x81, 0x7D, 0x32,
            0xBD, 0x8F, 0x40, 0xEB, 0x86, 0xB7, 0x7B, 0x0B, 0xF0, 0x95, 0x21, 0x22, 0x5C, 0x6B, 0x4E, 0x82,
            0x54, 0xD6, 0x65, 0x93, 0xCE, 0x60, 0xB2, 0x1C, 0x73, 0x56, 0xC0, 0x14, 0xA7, 0x8C, 0xF1, 0xDC,
            0x12, 0x75, 0xCA, 0x1F, 0x3B, 0xBE, 0xE4, 0xD1, 0x42, 0x3D, 0xD4, 0x30, 0xA3, 0x3C, 0xB6, 0x26,
            0x6F, 0xBF, 0x0E, 0xDA, 0x46, 0x69, 0x07, 0x57, 0x27, 0xF2, 0x1D, 0x9B, 0xBC, 0x94, 0x43, 0x03,
            0xF8, 0x11, 0xC7, 0xF6, 0x90, 0xEF, 0x3E, 0xE7, 0x06, 0xC3, 0xD5, 0x2F, 0xC8, 0x66, 0x1E, 0xD7,
            0x08, 0xE8, 0xEA, 0xDE, 0x80, 0x52, 0xEE, 0xF7, 0x84, 0xAA, 0x72, 0xAC, 0x35, 0x4D, 0x6A, 0x2A,
            0x96, 0x1A, 0xD2, 0x71, 0x5A, 0x15, 0x49, 0x74, 0x4B, 0x9F, 0xD0, 0x5E, 0x04, 0x18, 0xA4, 0xEC,
            0xC2, 0xE0, 0x41, 0x6E, 0x0F, 0x51, 0xCB, 0xCC, 0x24, 0x91, 0xAF, 0x50, 0xA1, 0xF4, 0x70, 0x39,
            0x99, 0x7C, 0x3A, 0x85, 0x23, 0xB8, 0xB4, 0x7A, 0xFC, 0x02, 0x36, 0x5B, 0x25, 0x55, 0x97, 0x31,
            0x2D, 0x5D, 0xFA, 0x98, 0xE3, 0x8A, 0x92, 0xAE, 0x05, 0xDF, 0x29, 0x10, 0x67, 0x6C, 0xBA, 0xC9,
            0xD3, 0x00, 0xE6, 0xCF, 0xE1, 0x9E, 0xA8, 0x2C, 0x63, 0x16, 0x01, 0x3F, 0x58, 0xE2, 0x89, 0xA9,
            0x0D, 0x38, 0x34, 0x1B, 0xAB, 0x33, 0xFF, 0xB0, 0xBB, 0x48, 0x0C, 0x5F, 0xB9, 0xB1, 0xCD, 0x2E,
            0xC5, 0xF3, 0xDB, 0x47, 0xE5, 0xA5, 0x9C, 0x77, 0x0A, 0xA6, 0x20, 0x68, 0xFE, 0x7F, 0xC1, 0xAD,
        ))
        schedule = bytearray(128)
        for i in range(128):
            if len(key) > i:
                schedule[i] = key[i]
            else:
                schedule[i] = sbox[schedule[i - 1] + schedule[i - len(key)] & 0xFF]
        schedule[128 - len(key)] = sbox[schedule[128 - len(key)]]
        if len(key) < 128:
            for i in range(127 - len(key), -1, -1):
                xor = schedule[i + 1] ^ schedule[len(key) + i]
                schedule[i] = sbox[xor & 0xFF]
        self._key = array.array('H')
        self._key.frombytes(schedule)

    def encrypt_mixup(self, K, x0, x1, x2, x3, r):
        r *= 4
        x0 = rotl16((x0 + (x2 & x3) + (~x3 & x1) + K[r + 0]) & 0xFFFF, 1)
        x1 = rotl16((x1 + (x3 & x0) + (~x0 & x2) + K[r + 1]) & 0xFFFF, 2)
        x2 = rotl16((x2 + (x0 & x1) + (~x1 & x3) + K[r + 2]) & 0xFFFF, 3)
        x3 = rotl16((x3 + (x1 & x2) + (~x2 & x0) + K[r + 3]) & 0xFFFF, 5)
        return x0, x1, x2, x3

    def decrypt_mixup(self, K, x0, x1, x2, x3, r):
        r = r * 4 + 3
        x3 = (rotr16(x3, 5) - (x1 & x2) - (~x2 & x0) - K[r - 0]) & 0xFFFF
        x2 = (rotr16(x2, 3) - (x0 & x1) - (~x1 & x3) - K[r - 1]) & 0xFFFF
        x1 = (rotr16(x1, 2) - (x3 & x0) - (~x0 & x2) - K[r - 2]) & 0xFFFF
        x0 = (rotr16(x0, 1) - (x2 & x3) - (~x3 & x1) - K[r - 3]) & 0xFFFF
        return x0, x1, x2, x3

    def encrypt_mash_(self, K, x0, x1, x2, x3):
        x0 = (x0 + K[x3 & 63]) & 0xFFFF
        x1 = (x1 + K[x0 & 63]) & 0xFFFF
        x2 = (x2 + K[x1 & 63]) & 0xFFFF
        x3 = (x3 + K[x2 & 63]) & 0xFFFF
        return x0, x1, x2, x3

    def decrypt_mash_(self, K, x0, x1, x2, x3):
        x3 = (x3 - K[x2 & 63]) & 0xFFFF
        x2 = (x2 - K[x1 & 63]) & 0xFFFF
        x1 = (x1 - K[x0 & 63]) & 0xFFFF
        x0 = (x0 - K[x3 & 63]) & 0xFFFF
        return x0, x1, x2, x3

    def block_encrypt(self, input_buffer):
        R = array.array('H')
        K = self._key
        R.frombytes(input_buffer)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x0)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x1)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x2)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x3)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x4)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x5)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x6)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x7)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x8)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x9)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xA)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xB)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xC)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xD)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xE)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xF)
        return R.tobytes()

    def block_decrypt(self, input_buffer):
        R = array.array('H')
        K = self._key
        R.frombytes(input_buffer)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xF)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xE)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xD)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xC)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xB)
        R[0], R[1], R[2], R[3] = self.decrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xA)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x9)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x8)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x7)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x6)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x5)
        R[0], R[1], R[2], R[3] = self.decrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x4)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x3)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x2)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x1)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x0)
        return R.tobytes()


class jc2(StandardBlockCipherUnit, cipher=BlockCipherFactory(RC2)):
    """
    Pure Python variant of the rc2 unit; used only for testing.
    """
    pass


class TestModesUsingRC2(TestUnitBase):

    def test_compatibility_decrypt(self):
        key = b'refinery/testing'
        for mode in CIPHER_MODES:
            try:
                E = -rc2(key, mode=mode, iv=B'refinery', raw=True)
                D = +jc2(key, mode=mode, iv=B'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                F'check failed for mode {mode}.')

    def test_compatibility_encrypt(self):
        key = b'testing/refinery'
        for mode in CIPHER_MODES:
            try:
                E = -jc2(key, mode=mode, iv=B'refinery', raw=True)
                D = +rc2(key, mode=mode, iv=B'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                F'check failed for mode {mode}.')

    def test_ctr_mode(self):
        key = b'testing/refinery'
        E = -jc2(key, mode='ctr', iv=B'n0nc3', raw=True)
        D = +rc2(key, mode='ctr', iv=B'n0nc3', raw=True)
        M = self.generate_random_buffer(RC2.block_size * 20)
        self.assertEqual(M, M | E | D | memoryview)

    def test_kryptografie_de_rc2_example(self):
        data = B'BeispielklartextBeispielklartext'
        key = B'Schokoladentorte'
        wish = bytes.fromhex('0969F22A 6E5BF195 E788759E 876521AF 0969F22A 6E5BF195 E788759E 876521AF')
        self.assertEqual(bytes(data | -rc2(key, raw=True)), wish)
        self.assertEqual(bytes(wish | +jc2(key, raw=True)), data)

f2cd82b2380c850162f3c86ae78341074e28b2f0
<mask token>


class RC2(BlockCipher):
    <mask token>
    <mask token>
    _key: array.array
    <mask token>
    <mask token>
    <mask token>
    <mask token>
    <mask token>
    <mask token>
    <mask token>
    <mask token>


class jc2(StandardBlockCipherUnit, cipher=BlockCipherFactory(RC2)):
    """
    Pure Python variant of the rc2 unit; used only for testing.
    """
    pass


class TestModesUsingRC2(TestUnitBase):

    def test_compatibility_decrypt(self):
        key = b'refinery/testing'
        for mode in CIPHER_MODES:
            try:
                E = -rc2(key, mode=mode, iv=b'refinery', raw=True)
                D = +jc2(key, mode=mode, iv=b'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                f'check failed for mode {mode}.')

    def test_compatibility_encrypt(self):
        key = b'testing/refinery'
        for mode in CIPHER_MODES:
            try:
                E = -jc2(key, mode=mode, iv=b'refinery', raw=True)
                D = +rc2(key, mode=mode, iv=b'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                f'check failed for mode {mode}.')

    def test_ctr_mode(self):
        key = b'testing/refinery'
        E = -jc2(key, mode='ctr', iv=b'n0nc3', raw=True)
        D = +rc2(key, mode='ctr', iv=b'n0nc3', raw=True)
        M = self.generate_random_buffer(RC2.block_size * 20)
        self.assertEqual(M, M | E | D | memoryview)

    def test_kryptografie_de_rc2_example(self):
        data = b'BeispielklartextBeispielklartext'
        key = b'Schokoladentorte'
        wish = bytes.fromhex(
            '0969F22A 6E5BF195 E788759E 876521AF 0969F22A 6E5BF195 E788759E 876521AF'
            )
        self.assertEqual(bytes(data | -rc2(key, raw=True)), wish)
        self.assertEqual(bytes(wish | +jc2(key, raw=True)), data)

<mask token>


class RC2(BlockCipher):
    <mask token>
    <mask token>
    _key: array.array
    <mask token>
    <mask token>

    def encrypt_mixup(self, K, x0, x1, x2, x3, r):
        r *= 4
        x0 = rotl16(x0 + (x2 & x3) + (~x3 & x1) + K[r + 0] & 65535, 1)
        x1 = rotl16(x1 + (x3 & x0) + (~x0 & x2) + K[r + 1] & 65535, 2)
        x2 = rotl16(x2 + (x0 & x1) + (~x1 & x3) + K[r + 2] & 65535, 3)
        x3 = rotl16(x3 + (x1 & x2) + (~x2 & x0) + K[r + 3] & 65535, 5)
        return x0, x1, x2, x3
    <mask token>
    <mask token>
    <mask token>

    def block_encrypt(self, input_buffer):
        R = array.array('H')
        K = self._key
        R.frombytes(input_buffer)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 0)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 1)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 2)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 3)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 4)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 5)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 6)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 7)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 8)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 9)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 10)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 11)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 12)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 13)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 14)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 15)
        return R.tobytes()
    <mask token>


class jc2(StandardBlockCipherUnit, cipher=BlockCipherFactory(RC2)):
    """
    Pure Python variant of the rc2 unit; used only for testing.
    """
    pass


class TestModesUsingRC2(TestUnitBase):

    def test_compatibility_decrypt(self):
        key = b'refinery/testing'
        for mode in CIPHER_MODES:
            try:
                E = -rc2(key, mode=mode, iv=b'refinery', raw=True)
                D = +jc2(key, mode=mode, iv=b'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                f'check failed for mode {mode}.')

    def test_compatibility_encrypt(self):
        key = b'testing/refinery'
        for mode in CIPHER_MODES:
            try:
                E = -jc2(key, mode=mode, iv=b'refinery', raw=True)
                D = +rc2(key, mode=mode, iv=b'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                f'check failed for mode {mode}.')

    def test_ctr_mode(self):
        key = b'testing/refinery'
        E = -jc2(key, mode='ctr', iv=b'n0nc3', raw=True)
        D = +rc2(key, mode='ctr', iv=b'n0nc3', raw=True)
        M = self.generate_random_buffer(RC2.block_size * 20)
        self.assertEqual(M, M | E | D | memoryview)

    def test_kryptografie_de_rc2_example(self):
        data = b'BeispielklartextBeispielklartext'
        key = b'Schokoladentorte'
        wish = bytes.fromhex(
            '0969F22A 6E5BF195 E788759E 876521AF 0969F22A 6E5BF195 E788759E 876521AF'
            )
        self.assertEqual(bytes(data | -rc2(key, raw=True)), wish)
        self.assertEqual(bytes(wish | +jc2(key, raw=True)), data)

<mask token>


class RC2(BlockCipher):
    <mask token>
    <mask token>
    _key: array.array
    <mask token>
    <mask token>

    def encrypt_mixup(self, K, x0, x1, x2, x3, r):
        r *= 4
        x0 = rotl16(x0 + (x2 & x3) + (~x3 & x1) + K[r + 0] & 65535, 1)
        x1 = rotl16(x1 + (x3 & x0) + (~x0 & x2) + K[r + 1] & 65535, 2)
        x2 = rotl16(x2 + (x0 & x1) + (~x1 & x3) + K[r + 2] & 65535, 3)
        x3 = rotl16(x3 + (x1 & x2) + (~x2 & x0) + K[r + 3] & 65535, 5)
        return x0, x1, x2, x3
    <mask token>

    def encrypt_mash_(self, K, x0, x1, x2, x3):
        x0 = x0 + K[x3 & 63] & 65535
        x1 = x1 + K[x0 & 63] & 65535
        x2 = x2 + K[x1 & 63] & 65535
        x3 = x3 + K[x2 & 63] & 65535
        return x0, x1, x2, x3
    <mask token>

    def block_encrypt(self, input_buffer):
        R = array.array('H')
        K = self._key
        R.frombytes(input_buffer)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 0)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 1)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 2)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 3)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 4)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 5)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 6)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 7)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 8)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 9)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 10)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 11)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 12)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 13)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 14)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 15)
        return R.tobytes()
    <mask token>


class jc2(StandardBlockCipherUnit, cipher=BlockCipherFactory(RC2)):
    """
    Pure Python variant of the rc2 unit; used only for testing.
    """
    pass


class TestModesUsingRC2(TestUnitBase):

    def test_compatibility_decrypt(self):
        key = b'refinery/testing'
        for mode in CIPHER_MODES:
            try:
                E = -rc2(key, mode=mode, iv=b'refinery', raw=True)
                D = +jc2(key, mode=mode, iv=b'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                f'check failed for mode {mode}.')

    def test_compatibility_encrypt(self):
        key = b'testing/refinery'
        for mode in CIPHER_MODES:
            try:
                E = -jc2(key, mode=mode, iv=b'refinery', raw=True)
                D = +rc2(key, mode=mode, iv=b'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                f'check failed for mode {mode}.')

    def test_ctr_mode(self):
        key = b'testing/refinery'
        E = -jc2(key, mode='ctr', iv=b'n0nc3', raw=True)
        D = +rc2(key, mode='ctr', iv=b'n0nc3', raw=True)
        M = self.generate_random_buffer(RC2.block_size * 20)
        self.assertEqual(M, M | E | D | memoryview)

    def test_kryptografie_de_rc2_example(self):
        data = b'BeispielklartextBeispielklartext'
        key = b'Schokoladentorte'
        wish = bytes.fromhex(
            '0969F22A 6E5BF195 E788759E 876521AF 0969F22A 6E5BF195 E788759E 876521AF'
            )
        self.assertEqual(bytes(data | -rc2(key, raw=True)), wish)
        self.assertEqual(bytes(wish | +jc2(key, raw=True)), data)

<mask token>


class RC2(BlockCipher):
    <mask token>
    <mask token>
    _key: array.array

    @property
    def key(self):
        return self._key
    <mask token>

    def encrypt_mixup(self, K, x0, x1, x2, x3, r):
        r *= 4
        x0 = rotl16(x0 + (x2 & x3) + (~x3 & x1) + K[r + 0] & 65535, 1)
        x1 = rotl16(x1 + (x3 & x0) + (~x0 & x2) + K[r + 1] & 65535, 2)
        x2 = rotl16(x2 + (x0 & x1) + (~x1 & x3) + K[r + 2] & 65535, 3)
        x3 = rotl16(x3 + (x1 & x2) + (~x2 & x0) + K[r + 3] & 65535, 5)
        return x0, x1, x2, x3
    <mask token>

    def encrypt_mash_(self, K, x0, x1, x2, x3):
        x0 = x0 + K[x3 & 63] & 65535
        x1 = x1 + K[x0 & 63] & 65535
        x2 = x2 + K[x1 & 63] & 65535
        x3 = x3 + K[x2 & 63] & 65535
        return x0, x1, x2, x3
    <mask token>

    def block_encrypt(self, input_buffer):
        R = array.array('H')
        K = self._key
        R.frombytes(input_buffer)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 0)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 1)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 2)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 3)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 4)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 5)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 6)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 7)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 8)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 9)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 10)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 11)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 12)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 13)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 14)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[
            3], 15)
        return R.tobytes()
    <mask token>


class jc2(StandardBlockCipherUnit, cipher=BlockCipherFactory(RC2)):
    """
    Pure Python variant of the rc2 unit; used only for testing.
    """
    pass


class TestModesUsingRC2(TestUnitBase):

    def test_compatibility_decrypt(self):
        key = b'refinery/testing'
        for mode in CIPHER_MODES:
            try:
                E = -rc2(key, mode=mode, iv=b'refinery', raw=True)
                D = +jc2(key, mode=mode, iv=b'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                f'check failed for mode {mode}.')

    def test_compatibility_encrypt(self):
        key = b'testing/refinery'
        for mode in CIPHER_MODES:
            try:
                E = -jc2(key, mode=mode, iv=b'refinery', raw=True)
                D = +rc2(key, mode=mode, iv=b'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                f'check failed for mode {mode}.')

    def test_ctr_mode(self):
        key = b'testing/refinery'
        E = -jc2(key, mode='ctr', iv=b'n0nc3', raw=True)
        D = +rc2(key, mode='ctr', iv=b'n0nc3', raw=True)
        M = self.generate_random_buffer(RC2.block_size * 20)
        self.assertEqual(M, M | E | D | memoryview)

    def test_kryptografie_de_rc2_example(self):
        data = b'BeispielklartextBeispielklartext'
        key = b'Schokoladentorte'
        wish = bytes.fromhex(
            '0969F22A 6E5BF195 E788759E 876521AF 0969F22A 6E5BF195 E788759E 876521AF'
            )
        self.assertEqual(bytes(data | -rc2(key, raw=True)), wish)
        self.assertEqual(bytes(wish | +jc2(key, raw=True)), data)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from ... import TestUnitBase

from refinery.lib.crypto import BlockCipher, BlockCipherFactory, rotl16, rotr16, CIPHER_MODES
from refinery.units.crypto.cipher.rc2 import rc2, StandardBlockCipherUnit

import array


class RC2(BlockCipher):
    block_size = 8
    key_size = range(5, 128 + 1)
    _key: array.array

    @property
    def key(self):
        return self._key

    @key.setter
    def key(self, key):
        sbox = bytearray((
            0xD9, 0x78, 0xF9, 0xC4, 0x19, 0xDD, 0xB5, 0xED, 0x28, 0xE9, 0xFD, 0x79, 0x4A, 0xA0, 0xD8, 0x9D,
            0xC6, 0x7E, 0x37, 0x83, 0x2B, 0x76, 0x53, 0x8E, 0x62, 0x4C, 0x64, 0x88, 0x44, 0x8B, 0xFB, 0xA2,
            0x17, 0x9A, 0x59, 0xF5, 0x87, 0xB3, 0x4F, 0x13, 0x61, 0x45, 0x6D, 0x8D, 0x09, 0x81, 0x7D, 0x32,
            0xBD, 0x8F, 0x40, 0xEB, 0x86, 0xB7, 0x7B, 0x0B, 0xF0, 0x95, 0x21, 0x22, 0x5C, 0x6B, 0x4E, 0x82,
            0x54, 0xD6, 0x65, 0x93, 0xCE, 0x60, 0xB2, 0x1C, 0x73, 0x56, 0xC0, 0x14, 0xA7, 0x8C, 0xF1, 0xDC,
            0x12, 0x75, 0xCA, 0x1F, 0x3B, 0xBE, 0xE4, 0xD1, 0x42, 0x3D, 0xD4, 0x30, 0xA3, 0x3C, 0xB6, 0x26,
            0x6F, 0xBF, 0x0E, 0xDA, 0x46, 0x69, 0x07, 0x57, 0x27, 0xF2, 0x1D, 0x9B, 0xBC, 0x94, 0x43, 0x03,
            0xF8, 0x11, 0xC7, 0xF6, 0x90, 0xEF, 0x3E, 0xE7, 0x06, 0xC3, 0xD5, 0x2F, 0xC8, 0x66, 0x1E, 0xD7,
            0x08, 0xE8, 0xEA, 0xDE, 0x80, 0x52, 0xEE, 0xF7, 0x84, 0xAA, 0x72, 0xAC, 0x35, 0x4D, 0x6A, 0x2A,
            0x96, 0x1A, 0xD2, 0x71, 0x5A, 0x15, 0x49, 0x74, 0x4B, 0x9F, 0xD0, 0x5E, 0x04, 0x18, 0xA4, 0xEC,
            0xC2, 0xE0, 0x41, 0x6E, 0x0F, 0x51, 0xCB, 0xCC, 0x24, 0x91, 0xAF, 0x50, 0xA1, 0xF4, 0x70, 0x39,
            0x99, 0x7C, 0x3A, 0x85, 0x23, 0xB8, 0xB4, 0x7A, 0xFC, 0x02, 0x36, 0x5B, 0x25, 0x55, 0x97, 0x31,
            0x2D, 0x5D, 0xFA, 0x98, 0xE3, 0x8A, 0x92, 0xAE, 0x05, 0xDF, 0x29, 0x10, 0x67, 0x6C, 0xBA, 0xC9,
            0xD3, 0x00, 0xE6, 0xCF, 0xE1, 0x9E, 0xA8, 0x2C, 0x63, 0x16, 0x01, 0x3F, 0x58, 0xE2, 0x89, 0xA9,
            0x0D, 0x38, 0x34, 0x1B, 0xAB, 0x33, 0xFF, 0xB0, 0xBB, 0x48, 0x0C, 0x5F, 0xB9, 0xB1, 0xCD, 0x2E,
            0xC5, 0xF3, 0xDB, 0x47, 0xE5, 0xA5, 0x9C, 0x77, 0x0A, 0xA6, 0x20, 0x68, 0xFE, 0x7F, 0xC1, 0xAD,
        ))
        schedule = bytearray(128)
        for i in range(128):
            if len(key) > i:
                schedule[i] = key[i]
            else:
                schedule[i] = sbox[schedule[i - 1] + schedule[i - len(key)] & 0xFF]
        schedule[128 - len(key)] = sbox[schedule[128 - len(key)]]
        if len(key) < 128:
            for i in range(127 - len(key), -1, -1):
                xor = schedule[i + 1] ^ schedule[len(key) + i]
                schedule[i] = sbox[xor & 0xFF]
        self._key = array.array('H')
        self._key.frombytes(schedule)

    def encrypt_mixup(self, K, x0, x1, x2, x3, r):
        r *= 4
        x0 = rotl16((x0 + (x2 & x3) + (~x3 & x1) + K[r + 0]) & 0xFFFF, 1)
        x1 = rotl16((x1 + (x3 & x0) + (~x0 & x2) + K[r + 1]) & 0xFFFF, 2)
        x2 = rotl16((x2 + (x0 & x1) + (~x1 & x3) + K[r + 2]) & 0xFFFF, 3)
        x3 = rotl16((x3 + (x1 & x2) + (~x2 & x0) + K[r + 3]) & 0xFFFF, 5)
        return x0, x1, x2, x3

    def decrypt_mixup(self, K, x0, x1, x2, x3, r):
        r = r * 4 + 3
        x3 = (rotr16(x3, 5) - (x1 & x2) - (~x2 & x0) - K[r - 0]) & 0xFFFF
        x2 = (rotr16(x2, 3) - (x0 & x1) - (~x1 & x3) - K[r - 1]) & 0xFFFF
        x1 = (rotr16(x1, 2) - (x3 & x0) - (~x0 & x2) - K[r - 2]) & 0xFFFF
        x0 = (rotr16(x0, 1) - (x2 & x3) - (~x3 & x1) - K[r - 3]) & 0xFFFF
        return x0, x1, x2, x3

    def encrypt_mash_(self, K, x0, x1, x2, x3):
        x0 = (x0 + K[x3 & 63]) & 0xFFFF
        x1 = (x1 + K[x0 & 63]) & 0xFFFF
        x2 = (x2 + K[x1 & 63]) & 0xFFFF
        x3 = (x3 + K[x2 & 63]) & 0xFFFF
        return x0, x1, x2, x3

    def decrypt_mash_(self, K, x0, x1, x2, x3):
        x3 = (x3 - K[x2 & 63]) & 0xFFFF
        x2 = (x2 - K[x1 & 63]) & 0xFFFF
        x1 = (x1 - K[x0 & 63]) & 0xFFFF
        x0 = (x0 - K[x3 & 63]) & 0xFFFF
        return x0, x1, x2, x3

    def block_encrypt(self, input_buffer):
        R = array.array('H')
        K = self._key
        R.frombytes(input_buffer)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x0)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x1)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x2)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x3)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x4)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x5)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x6)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x7)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x8)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0x9)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xA)
        R[0], R[1], R[2], R[3] = self.encrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xB)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xC)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xD)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xE)
        R[0], R[1], R[2], R[3] = self.encrypt_mixup(K, R[0], R[1], R[2], R[3], 0xF)
        return R.tobytes()

    def block_decrypt(self, input_buffer):
        R = array.array('H')
        K = self._key
        R.frombytes(input_buffer)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xF)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xE)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xD)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xC)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xB)
        R[0], R[1], R[2], R[3] = self.decrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0xA)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x9)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x8)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x7)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x6)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x5)
        R[0], R[1], R[2], R[3] = self.decrypt_mash_(K, R[0], R[1], R[2], R[3])
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x4)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x3)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x2)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x1)
        R[0], R[1], R[2], R[3] = self.decrypt_mixup(K, R[0], R[1], R[2], R[3], 0x0)
        return R.tobytes()


class jc2(StandardBlockCipherUnit, cipher=BlockCipherFactory(RC2)):
    """
    Pure Python variant of the rc2 unit; used only for testing.
    """
    pass


class TestModesUsingRC2(TestUnitBase):

    def test_compatibility_decrypt(self):
        key = b'refinery/testing'
        for mode in CIPHER_MODES:
            try:
                E = -rc2(key, mode=mode, iv=B'refinery', raw=True)
                D = +jc2(key, mode=mode, iv=B'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                F'check failed for mode {mode}.')

    def test_compatibility_encrypt(self):
        key = b'testing/refinery'
        for mode in CIPHER_MODES:
            try:
                E = -jc2(key, mode=mode, iv=B'refinery', raw=True)
                D = +rc2(key, mode=mode, iv=B'refinery', raw=True)
            except ValueError:
                continue
            M = self.generate_random_buffer(RC2.block_size * 20)
            self.assertEqual(M, M | E | D | memoryview,
                F'check failed for mode {mode}.')

    def test_ctr_mode(self):
        key = b'testing/refinery'
        E = -jc2(key, mode='ctr', iv=B'n0nc3', raw=True)
        D = +rc2(key, mode='ctr', iv=B'n0nc3', raw=True)
        M = self.generate_random_buffer(RC2.block_size * 20)
        self.assertEqual(M, M | E | D | memoryview)

    def test_kryptografie_de_rc2_example(self):
        data = B'BeispielklartextBeispielklartext'
        key = B'Schokoladentorte'
        wish = bytes.fromhex('0969F22A 6E5BF195 E788759E 876521AF 0969F22A 6E5BF195 E788759E 876521AF')
        self.assertEqual(bytes(data | -rc2(key, raw=True)), wish)
        self.assertEqual(bytes(wish | +jc2(key, raw=True)), data)
