If you target iOS 13.0+ or macOS 10.15+, use Apple’s CryptoKit import CryptoKit let secretString = “my-secret” let key = SymmetricKey(data: Data(secretString.utf8)) let string = “An apple a day keeps anyone away, if you throw it hard enough” let signature = HMAC<SHA256>.authenticationCode(for: Data(string.utf8), using: key) print(Data(signature).map { String(format: “%02hhx”, $0) }.joined()) // 1c161b971ab68e7acdb0b45cca7ae92d574613b77fca4bc7d5c4effab89dab67
CryptoSwift Example Updated to Swift 2 import Foundation import CryptoSwift extension String { func aesEncrypt(key: String, iv: String) throws -> String{ let data = self.dataUsingEncoding(NSUTF8StringEncoding) let enc = try AES(key: key, iv: iv, blockMode:.CBC).encrypt(data!.arrayOfBytes(), padding: PKCS7()) let encData = NSData(bytes: enc, length: Int(enc.count)) let base64String: String = encData.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0)); let result = String(base64String) return result … Read more