Swift实现AES256加解密

计算摘要

let data = Data([0x01, 0x02, 0x03])

let hash = data.md5()
let hash = data.sha1()
let hash = data.sha224()
let hash = data.sha256()
let hash = data.sha384()
let hash = data.sha512()

AES256加解密

let password: [UInt8] = Array("xiaopeng".utf8)
let salt: [UInt8] = Array("wan".utf8)

/* Generate a key from a `password`. Optional if you already have a key */
let key = try PKCS5.PBKDF2(
    password: password,
    salt: salt,
    iterations: 4096,
    keyLength: 32, /* AES-256 */
    variant: .sha128
).calculate()

/* Generate random IV value. IV is public value. Either need to generate, or get it from elsewhere */
let iv = AES.randomIV(AES.blockSize)

/* AES cryptor instance */
let aes = try AES(key: key, blockMode: CBC(iv: iv), padding: .pkcs7)

/* Encrypt Data */
let inputData =  Data([0x01, 0x02, 0x03])
let encryptedBytes = try aes.encrypt(inputData.bytes)
let encryptedData = Data(encryptedBytes)

/* Decrypt Data */
let decryptedBytes = try aes.decrypt(encryptedData.bytes)
let decryptedData = Data(decryptedBytes)