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#import <CommonCrypto/CommonHMAC.h> |
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//HMAC.swiftimport Foundationenum CryptoAlgorithm { case MD5, SHA1, SHA224, SHA256, SHA384, SHA512 var HMACAlgorithm: CCHmacAlgorithm { var result: Int = 0 switch self { case .MD5: result = kCCHmacAlgMD5 case .SHA1: result = kCCHmacAlgSHA1 case .SHA224: result = kCCHmacAlgSHA224 case .SHA256: result = kCCHmacAlgSHA256 case .SHA384: result = kCCHmacAlgSHA384 case .SHA512: result = kCCHmacAlgSHA512 } return CCHmacAlgorithm(result) } var digestLength: Int { var result: Int32 = 0 switch self { case .MD5: result = CC_MD5_DIGEST_LENGTH case .SHA1: result = CC_SHA1_DIGEST_LENGTH case .SHA224: result = CC_SHA224_DIGEST_LENGTH case .SHA256: result = CC_SHA256_DIGEST_LENGTH case .SHA384: result = CC_SHA384_DIGEST_LENGTH case .SHA512: result = CC_SHA512_DIGEST_LENGTH } return Int(result) }}extension String { func hmac(algorithm: CryptoAlgorithm, key: String) -> String { let str = self.cStringUsingEncoding(NSUTF8StringEncoding) let strLen = Int(self.lengthOfBytesUsingEncoding(NSUTF8StringEncoding)) let digestLen = algorithm.digestLength let result = UnsafeMutablePointer<CUnsignedChar>.alloc(digestLen) let keyStr = key.cStringUsingEncoding(NSUTF8StringEncoding) let keyLen = Int(key.lengthOfBytesUsingEncoding(NSUTF8StringEncoding)) CCHmac(algorithm.HMACAlgorithm, keyStr!, keyLen, str!, strLen, result) let digest = stringFromResult(result, length: digestLen) result.dealloc(digestLen) return digest } private func stringFromResult(result: UnsafeMutablePointer<CUnsignedChar>, length: Int) -> String { let hash = NSMutableString() for i in 0..<length { hash.appendFormat("%02x", result[i]) } return String(hash) }} |
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let str = "welcome to hangge.com"let key = "67FG"let hmacStr = str.hmac(.SHA1, key: key) print("原始字符串：\(str)")print("key：\(key)")print("HMAC运算结果：\(hmacStr)") /**** 输出 ******原始字符串：welcome to hangge.comkey：67FGHMAC运算结果：79a5f5b138b5646289a9648de035c80e9c5c14c7*****/ |
原文：http://www.cnblogs.com/Free-Thinker/p/4858361.html