如何在Swift 4中复制hash_hmac（'sha256'，$ key，$ secret_key）函数？

本文介绍了如何在Swift 4中复制hash_hmac（'sha256'，$ key，$ secret_key）函数？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 限时删除！！ 在使用像CommonCrypto，CryptoSwift这样的库之后，我尝试了在Swift 4中生成相当于hash_hmac（'sha256'，$ key，$ secret_key）的php函数，但没有成功。我需要这些函数进行API认证，使用Alamofire库，这是一个很棒的库。因为我使用Swift 4，所以与其他Swift库的兼容性不太好。即使CryptoSwift具有Swift 4的最新版本（0.7.1），我仍然会遇到很多兼容错误，比如 解决方案 b $ b 具有MD5，SHA1，SHA224，SHA256，SHA384，SHA512的HMAC（Swift 3） name参数将散列函数名称指定为字符串支持的函数是MD5，SHA1，SHA224，SHA256，SHA384和SHA512 这个例子需要Common Crypto 必须有该项目的桥接头： #import< CommonCrypto / CommonCrypto.h> 将Security.framework添加到该项目。 这些函数需要一个散列名，消息被散列，一个键并返回一个摘要： hashName：作为字符串的散列函数的名称 message：作为数据的消息 key：作为数据的返回：摘要为数据 func hmac（hashName：String，message：Data，key：Data） - >数据？ { let algos = [SHA1：（kCCHmacAlgSHA1，CC_SHA1_DIGEST_LENGTH），MD5：（kCCHmacAlgMD5，CC_MD5_DIGEST_LENGTH），SHA224:( kCCHmacAlgSHA224，CC_SHA224_DIGEST_LENGTH），SHA256：（kCCHmacAlgSHA256，CC_SHA256_DIGEST_LENGTH），SHA384：（kCCHmacAlgSHA384，CC_SHA384_DIGEST_LENGTH），SHA512：（kCCHmacAlgSHA512，CC_SHA512_DIGEST_LENGTH）] guard let（hashAlgorithm，length） = algos [hashName] else {return nil} var macData = Data（count：Int（length）） macData.withUnsafeMutableBytes {macBytes in message.withUnsafeBytes {messageBytes in key.withUnsafeBytes {keyBytes in CCHmac（CCHmacAlgorithm（hashAlgorithm）， keyBytes，key.count， messageBytes，message.count， macBytes）} } } return macData } hashName：作为字符串的散列函数的名称消息：作为字符串的消息 key：作为字符串的键返回：作为数据的摘要 func hmac（hashName：String，message：String，key：String） - >数据？ { let messageData = message.data（使用：.utf8）！ let keyData = key.data（使用：.utf8）！ 返回hmac（hashName：hashName，message：messageData，key：keyData）} hashName：作为字符串的散列函数的名称消息：消息作为字符串 key：键作为数据返回：摘要为数据 func hmac（hashName：String，message：String，key ：Data） - >数据？ { let messageData = message.data（使用：.utf8）！ 返回hmac（hashName：hashName，message：messageData，key：key）} //示例 let clearString =clearData0123456让keyString =keyData8901234562让clearData = clearString.data（使用：.utf8）！ let keyData = keyString.data（使用：.utf8）！ print（clearString：\（clearString）） print（keyString：\（keyString）） print（clearData：\（clearData as NSData）） print（keyData：\（keyData as NSData）） let hmacData1 = hmac（hashName：SHA1，message：clearData，key：keyData） print （hmacData1：\（hmacData1！as NSData）） let hmacData2 = hmac（hashName：SHA1，message：clearString，key：keyString） print（hmacData2： \（hmacData2！as NSData）） let hmacData3 = hmac（hashName：SHA1，message：clearString，key：keyData） print（hmacData3：\（hmacData3 ！）作为NSData）） 输出： clearString：clearData0123456 keyString：keyData8901234562 clearData：< 636c6561 72446174 61303132 33343536> keyData：< 6b657944 61746138 39303132 33343536 32> hmacData1：< bb358f41 79b68c08 8e93191a da7dabbc 138f2ae6> hmacData2：< bb358f41 79b68c08 8e93191a da7dabbc 138f2ae6> hmacData3：< bb358f41 79b68c08 8e93191a da7dabbc 138f2ae6> I've tried generating the hash_hmac('sha256', $key, $secret_key) php function equivalent in Swift 4 without success, after using libraries like CommonCrypto, CryptoSwift. I need these function for API authentication, using Alamofire library, which is a great library. Since i use Swift 4 the compatibility with other Swift libraries is not so good. Even with CryptoSwift which has the latest version(0.7.1) for Swift 4 i still get a lot of compatibility errors likesenter image description here 解决方案 Swift 3/4:HMAC with MD5, SHA1, SHA224, SHA256, SHA384, SHA512 (Swift 3)The name parameter specifies the hash function name as a StringSupported functions are MD5, SHA1, SHA224, SHA256, SHA384 and SHA512This example requires Common CryptoIt is necessary to have a bridging header to the project:#import <CommonCrypto/CommonCrypto.h>Add the Security.framework to the project.These functions takes a hash name, message to be hashed, a key and return a digest:hashName: name of a hash function as Stringmessage: message as Datakey: key as Datareturns: digest as Datafunc hmac(hashName:String, message:Data, key:Data) -> Data? { let algos = ["SHA1": (kCCHmacAlgSHA1, CC_SHA1_DIGEST_LENGTH), "MD5": (kCCHmacAlgMD5, CC_MD5_DIGEST_LENGTH), "SHA224": (kCCHmacAlgSHA224, CC_SHA224_DIGEST_LENGTH), "SHA256": (kCCHmacAlgSHA256, CC_SHA256_DIGEST_LENGTH), "SHA384": (kCCHmacAlgSHA384, CC_SHA384_DIGEST_LENGTH), "SHA512": (kCCHmacAlgSHA512, CC_SHA512_DIGEST_LENGTH)] guard let (hashAlgorithm, length) = algos[hashName] else { return nil } var macData = Data(count: Int(length)) macData.withUnsafeMutableBytes {macBytes in message.withUnsafeBytes {messageBytes in key.withUnsafeBytes {keyBytes in CCHmac(CCHmacAlgorithm(hashAlgorithm), keyBytes, key.count, messageBytes, message.count, macBytes) } } } return macData }hashName: name of a hash function as Stringmessage: message as Stringkey: key as Stringreturns: digest as Datafunc hmac(hashName:String, message:String, key:String) -> Data? { let messageData = message.data(using:.utf8)! let keyData = key.data(using:.utf8)! return hmac(hashName:hashName, message:messageData, key:keyData)}hashName: name of a hash function as Stringmessage: message as Stringkey: key as Datareturns: digest as Datafunc hmac(hashName:String, message:String, key:Data) -> Data? { let messageData = message.data(using:.utf8)! return hmac(hashName:hashName, message:messageData, key:key)}// Exampleslet clearString = "clearData0123456"let keyString = "keyData8901234562"let clearData = clearString.data(using:.utf8)!let keyData = keyString.data(using:.utf8)!print("clearString: \(clearString)")print("keyString: \(keyString)")print("clearData: \(clearData as NSData)")print("keyData: \(keyData as NSData)")let hmacData1 = hmac(hashName:"SHA1", message:clearData, key:keyData)print("hmacData1: \(hmacData1! as NSData)")let hmacData2 = hmac(hashName:"SHA1", message:clearString, key:keyString)print("hmacData2: \(hmacData2! as NSData)")let hmacData3 = hmac(hashName:"SHA1", message:clearString, key:keyData)print("hmacData3: \(hmacData3! as NSData)")Output:clearString: clearData0123456keyString: keyData8901234562clearData: <636c6561 72446174 61303132 33343536>keyData: <6b657944 61746138 39303132 33343536 32>hmacData1: <bb358f41 79b68c08 8e93191a da7dabbc 138f2ae6>hmacData2: <bb358f41 79b68c08 8e93191a da7dabbc 138f2ae6>hmacData3: <bb358f41 79b68c08 8e93191a da7dabbc 138f2ae6> 这篇关于如何在Swift 4中复制hash_hmac（'sha256'，$ key，$ secret_key）函数？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 1403页，肝出来的..