CryptoSwift/Tests/CryptoSwiftTests/BlowfishTests.swift

//
//  BlowfishTests.swift
//  CryptoSwift
//
//  Created by Marcin Krzyzanowski on 26/10/16.
//  Copyright © 2016 Marcin Krzyzanowski. All rights reserved.
//
// Test vector from http://www.schneier.com/code/vectors.txt
//

import XCTest
@testable import CryptoSwift

class BlowfishTests: XCTestCase {

    struct TestData {
        let key: Array<UInt8>
        let input: Array<UInt8>
        let output: Array<UInt8>
    }

    let tests = [
        TestData(key: [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
                 input: [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
                 output: [0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78]),
        TestData(key: [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
                 input: [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
                 output: [0x51, 0x86, 0x6F, 0xD5, 0xB8, 0x5E, 0xCB, 0x8A]),
        TestData(key: [0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
                 input: [0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01],
                 output: [0x7D, 0x85, 0x6F, 0x9A, 0x61, 0x30, 0x63, 0xF2]),
        TestData(key: [0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11],
                 input: [0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11],
                 output: [0x24, 0x66, 0xDD, 0x87, 0x8B, 0x96, 0x3C, 0x9D]),

        TestData(key:   [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
                 input: [0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11],
                 output:[0x61, 0xF9, 0xC3, 0x80, 0x22, 0x81, 0xB0, 0x96]),

        TestData(key:   [0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11],
                 input: [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
                 output:[0x7D, 0x0C, 0xC6, 0x30, 0xAF, 0xDA, 0x1E, 0xC7]),

        TestData(key:   [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
                 input: [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
                 output:[0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78]),

        TestData(key:   [0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10],
                 input: [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
                 output:[0x0A, 0xCE, 0xAB, 0x0F, 0xC6, 0xA0, 0xA2, 0x8D]),

        TestData(key:   [0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57],
                 input: [0x01, 0xA1, 0xD6, 0xD0, 0x39, 0x77, 0x67, 0x42],
                 output:[0x59, 0xC6, 0x82, 0x45, 0xEB, 0x05, 0x28, 0x2B]),

        TestData(key:   [0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E],
                 input: [0x5C, 0xD5, 0x4C, 0xA8, 0x3D, 0xEF, 0x57, 0xDA],
                 output:[0xB1, 0xB8, 0xCC, 0x0B, 0x25, 0x0F, 0x09, 0xA0]),

        TestData(key:   [0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86],
                 input: [0x02, 0x48, 0xD4, 0x38, 0x06, 0xF6, 0x71, 0x72],
                 output:[0x17, 0x30, 0xE5, 0x77, 0x8B, 0xEA, 0x1D, 0xA4]),

        TestData(key:   [0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E],
                 input: [0x51, 0x45, 0x4B, 0x58, 0x2D, 0xDF, 0x44, 0x0A],
                 output:[0xA2, 0x5E, 0x78, 0x56, 0xCF, 0x26, 0x51, 0xEB]),

        TestData(key:   [0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6],
                 input: [0x42, 0xFD, 0x44, 0x30, 0x59, 0x57, 0x7F, 0xA2],
                 output:[0x35, 0x38, 0x82, 0xB1, 0x09, 0xCE, 0x8F, 0x1A]),

        TestData(key:   [0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE],
                 input: [0x05, 0x9B, 0x5E, 0x08, 0x51, 0xCF, 0x14, 0x3A],
                 output:[0x48, 0xF4, 0xD0, 0x88, 0x4C, 0x37, 0x99, 0x18]),

        TestData(key:   [0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6],
                 input: [0x07, 0x56, 0xD8, 0xE0, 0x77, 0x47, 0x61, 0xD2],
                 output:[0x43, 0x21, 0x93, 0xB7, 0x89, 0x51, 0xFC, 0x98]),

        TestData(key:   [0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE],
                 input: [0x76, 0x25, 0x14, 0xB8, 0x29, 0xBF, 0x48, 0x6A],
                 output:[0x13, 0xF0, 0x41, 0x54, 0xD6, 0x9D, 0x1A, 0xE5]),

        TestData(key:   [0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16],
                 input: [0x3B, 0xDD, 0x11, 0x90, 0x49, 0x37, 0x28, 0x02],
                 output:[0x2E, 0xED, 0xDA, 0x93, 0xFF, 0xD3, 0x9C, 0x79]),

        TestData(key:   [0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F],
                 input: [0x26, 0x95, 0x5F, 0x68, 0x35, 0xAF, 0x60, 0x9A],
                 output:[0xD8, 0x87, 0xE0, 0x39, 0x3C, 0x2D, 0xA6, 0xE3]),

        TestData(key:   [0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46],
                 input: [0x16, 0x4D, 0x5E, 0x40, 0x4F, 0x27, 0x52, 0x32],
                 output:[0x5F, 0x99, 0xD0, 0x4F, 0x5B, 0x16, 0x39, 0x69]),

        TestData(key:   [0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E],
                 input: [0x6B, 0x05, 0x6E, 0x18, 0x75, 0x9F, 0x5C, 0xCA],
                 output:[0x4A, 0x05, 0x7A, 0x3B, 0x24, 0xD3, 0x97, 0x7B]),

        TestData(key:   [0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76],
                 input: [0x00, 0x4B, 0xD6, 0xEF, 0x09, 0x17, 0x60, 0x62],
                 output:[0x45, 0x20, 0x31, 0xC1, 0xE4, 0xFA, 0xDA, 0x8E]),

        TestData(key:   [0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07],
                 input: [0x48, 0x0D, 0x39, 0x00, 0x6E, 0xE7, 0x62, 0xF2],
                 output:[0x75, 0x55, 0xAE, 0x39, 0xF5, 0x9B, 0x87, 0xBD]),

        TestData(key:   [0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F],
                 input: [0x43, 0x75, 0x40, 0xC8, 0x69, 0x8F, 0x3C, 0xFA],
                 output:[0x53, 0xC5, 0x5F, 0x9C, 0xB4, 0x9F, 0xC0, 0x19]),

        TestData(key:   [0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7],
                 input: [0x07, 0x2D, 0x43, 0xA0, 0x77, 0x07, 0x52, 0x92],
                 output:[0x7A, 0x8E, 0x7B, 0xFA, 0x93, 0x7E, 0x89, 0xA3]),

        TestData(key:   [0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF],
                 input: [0x02, 0xFE, 0x55, 0x77, 0x81, 0x17, 0xF1, 0x2A],
                 output:[0xCF, 0x9C, 0x5D, 0x7A, 0x49, 0x86, 0xAD, 0xB5]),

        TestData(key:   [0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6],
                 input: [0x1D, 0x9D, 0x5C, 0x50, 0x18, 0xF7, 0x28, 0xC2],
                 output:[0xD1, 0xAB, 0xB2, 0x90, 0x65, 0x8B, 0xC7, 0x78]),

        TestData(key:   [0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF],
                 input: [0x30, 0x55, 0x32, 0x28, 0x6D, 0x6F, 0x29, 0x5A],
                 output:[0x55, 0xCB, 0x37, 0x74, 0xD1, 0x3E, 0xF2, 0x01]),

        TestData(key:   [0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01],
                 input: [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
                 output:[0xFA, 0x34, 0xEC, 0x48, 0x47, 0xB2, 0x68, 0xB2]),

        TestData(key:   [0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E],
                 input: [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
                 output:[0xA7, 0x90, 0x79, 0x51, 0x08, 0xEA, 0x3C, 0xAE]),

        TestData(key:   [0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE],
                 input: [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
                 output:[0xC3, 0x9E, 0x07, 0x2D, 0x9F, 0xAC, 0x63, 0x1D]),

        TestData(key:   [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
                 input: [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
                 output:[0x01, 0x49, 0x33, 0xE0, 0xCD, 0xAF, 0xF6, 0xE4]),

        TestData(key:   [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
                 input: [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
                 output:[0xF2, 0x1E, 0x9A, 0x77, 0xB7, 0x1C, 0x49, 0xBC]),

        TestData(key:   [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF],
                 input: [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
                 output:[0x24, 0x59, 0x46, 0x88, 0x57, 0x54, 0x36, 0x9A]),

        TestData(key:   [0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10],
                 input: [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
                 output:[0x6B, 0x5C, 0x5A, 0x9C, 0x5D, 0x9E, 0x0A, 0x5A]),
        ]

    func testEncrypt() {
        for test in self.tests {
            XCTAssertEqual(try Blowfish(key: test.key, blockMode: .ECB, padding: NoPadding()).encrypt(test.input), test.output)
        }
    }

    func testDecrypt() {
        for test in self.tests {
            XCTAssertEqual(try Blowfish(key: test.key, blockMode: .ECB, padding: NoPadding()).decrypt(test.output), test.input)
        }
    }

    func testCBCZeroPadding() {
        let key = Array<UInt8>.init(hex: "0123456789ABCDEFF0E1D2C3B4A59687")
        let iv = Array<UInt8>.init(hex: "FEDCBA9876543210")
        let input = Array<UInt8>.init(hex: "37363534333231204E6F77206973207468652074696D6520666F722000")
        XCTAssertEqual(try Blowfish(key: key, iv: iv, blockMode: .CBC, padding: ZeroPadding()).encrypt(input), Array<UInt8>(hex: "6B77B4D63006DEE605B156E27403979358DEB9E7154616D959F1652BD5FF92CC"))
    }

    func testEncryptDecrypt() {
        let key = Array<UInt8>.init(hex: "0123456789ABCDEFF0E1D2C3B4A59687")
        let iv = Array<UInt8>.init(hex: "FEDCBA9876543210")
        let input = Array<UInt8>.init(hex: "37363534333231204E6F77206973207468652074696D6520666F722000")

        do {
            let cipher = try Blowfish(key: key, iv: iv, blockMode: .CBC, padding: PKCS7())
            let ciphertext = try cipher.encrypt(input)
            let plaintext = try cipher.decrypt(ciphertext)
            XCTAssertEqual(plaintext, input)
        } catch {
            XCTFail(error.localizedDescription)
        }
    }
}

extension BlowfishTests {

    static func allTests() -> [(String, (BlowfishTests) -> () -> Void)] {
        let tests = [
            ("testEncrypt", testEncrypt),
            ("testDecrypt", testDecrypt),
            ("testCBCZeroPadding", testCBCZeroPadding),
            ("testEncryptDecrypt", testEncryptDecrypt)
        ]
        return tests
    }
}