本文介绍了快速使用SHA512哈希字符串的处理方法,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 29岁程序员,3月因学历无情被辞! 任何人都知道如何在swift中重现PHP哈希方法散列('SHA512',$ value,true)?我尝试使用这个代码使用CommonCrypto C库: 扩展字符串{ func digest(长度:Int32,gen :(数据:UnsafePointer< Void>,len:CC_LONG,md:UnsafeMutablePointer< UInt8>) - > UnsafeMutablePointer< UInt8>) - >字符串{ var cStr = [UInt8](self.utf8) var result = [UInt8](count:Int(length),repeatedValue:0) gen(data:& cStr ,len:CC_LONG(cStr.count),md:& result) let output = NSMutableString(capacity:Int(length)) for result in result { output.appendFormat( %02x,r)} return String(输出)} } 并像这样使用它: var digest = salted.digest(CC_SHA512_DIGEST_LENGTH,gen:在CC_SHA512(data,len,md)})中,{没有得到正确的输出 编辑: 我有一些PHP code: echo base64_encode(hash('sha512','8yOrBmkd',true)); //输出:rlltLWeWaQCrfNTYMa0CcIs0mfLoHGAynrd + d8H65 + rGAzHS / BSWsumwSmcxF9aAG9TIzXx + HOjArPyLL3herg == 我希望我的swift代码输出相同。 Base64编码正常: let utf8str = input.dataUsingEncoding(NSUTF8StringEncoding)!. base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue:0)) let base64Encoded = utf8str!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue:0)) print(Encoded:\(base64Encoded)) 但是哈希部分返回的输出与此PHP代码的输出相同: echo base64_encode(hash('sha512','8yOrBmkd',false)); //输出:YWU1OTZkMmQ2Nzk2NjkwMGFiN2NkNGQ4MzFhZDAyNzA4YjM0OTlmMmU4MWM2MDMyOWViNzdlNzdjMWZhZTdlYWM2MDMzMWQyZmMxNDk2YjJlOWIwNGE2NzMxMTdkNjgwMWJkNGM4Y2Q3YzdlMWNlOGMwYWNmYzhiMmY3ODVlYWU = 解决方案 夫特3在底部implementatiomn 。 代码不需要太复杂或是扩展名: func sha512Hex(string string:String) - > String { var digest = [UInt8](count:Int(CC_SHA512_DIGEST_LENGTH),repeatedValue:0) if data = string.dataUsingEncoding(NSUTF8StringEncoding){ CC_SHA512(data.bytes,CC_LONG (data.length),& digest)} var digestHex = for index in 0 ..< Int(CC_SHA512_DIGEST_LENGTH){ digestHex + = String(format:%02x,digest [index])} return digestHex } $ b //测试: let hexDigest = sha512Hex(string: 8yOrBmkd) print(hexDigest:\\\\(hexDigest)) $ b $ func sha512(string string:String) - > [UInt8] { var digest = [UInt8](count:Int(CC_SHA512_DIGEST_LENGTH),repeatedValue:0) let data = string.dataUsingEncoding(NSUTF8StringEncoding)! CC_SHA512(data.bytes,CC_LONG(data.length),& digest) return digest } //测试: let digestRaw = sha512(string: 8yOrBmkd) print(decimal array:\\\\(digestRaw)) print(hexadecimal:\\\\(NSData(bytes:digestRaw,length:digestRaw.count )。) $ b $输出: $ b blockquote> 十进制数组: [174,89,109,45,103,150,105,0,171,124,212,216,49,173,2,112,139 ,52,153,242,232,28,96,50,158,183,126,119,193,250,231,234,198,3,49,210,252,20,150,178,233,176 ,74,103,49,23,214,128,27,212,200,205,124,126,28,232,192,172,252,139,47,120,94,174] 十六进制: ae596d2d67966900ab7cd4d831ad02708b3499f2e81c60329eb77e77c1fae7eac60331d2fc1496b2e9b04a673117d6801bd4c8cd7c7e1ce8c0acfc8b2f785eae Base64输出: func sha512Base64(string string:String) - > String { let digest = NSMutableData(length:Int(CC_SHA512_DIGEST_LENGTH))! if data = string.dataUsingEncoding(NSUTF8StringEncoding){ CC_SHA512(data.bytes,CC_LONG(data.length),UnsafeMutablePointer< UInt8>(digest.mutableBytes))} 返回digest.base64EncodedStringWithOptions(NSDataBase64EncodingOptions([]))} //测试: let digestBase64 = sha512Base64(string:8yOrBmkd) print(Base64:\\\\( digestBase64)) 输出: Base64: rlltLWeWaQCrfNTYMa0CcIs0mfLoHGAynrd + d8H65 + rGAzHS / BSWsumwSmcxF9aAG9TIzXx + HOjArPyLL3herg == func hashSHA512(data:Data) - >串? { var hashData = Data(count:Int(CC_SHA512_DIGEST_LENGTH)) _ = hashData.withUnsafeMutableBytes {digestBytes in data.withUnsafeBytes {messageBytes in CC_SHA512(messageBytes ,CC_LONG(data.count),digestBytes)} } //对于十六进制输出:返回hashData.map {String(format:%02hhx ,$ 0)} .joined() //对于Base64输出,使用这个代替上述代码: //返回data.base64EncodedString()} 不赞成使用的文档部分的示例: HMAC with MD5,SHA1 ,SHA224,SHA256,SHA384,SHA512(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 这个项目需要一个桥接头: #import< CommonCrypto / CommonCrypto.h> 将Security.framework添加到项目中。 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> MD2,MD4,MD5,SHA1,SHA224,SHA256,SHA384,SHA512(Swift 3 +) name参数将散列函数名称指定为字符串 支持的函数是MD2,MD4,MD5,SHA1,SHA224,SHA256 ,SHA384和SHA512 a 这个例子需要Common Crypto 这个项目需要一个桥接头: #导入< CommonCrypto / CommonCrypto.h> 将Security.framework添加到项目中。 这个函数接受散列名和字符串被散列并返回a数据: 名称:作为字符串的散列函数的名称字符串:要散列的字符串返回:散列结果作为数据 func hash(name:String,string:String) - >数据? { let data = string.data(using:.utf8)! return hash(name:name,data:data)} 示例: 让clearString =clearData0123456让clearData = clearString.data(使用:.utf8)! print(clearString:\(clearString)) print(clearData:\(clearData as NSData)) let hashSHA256 = hash(name: SHA256,string:clearString) print(hashSHA256:\(hashSHA256!as NSData)) let hashMD5 = hash(name:MD5,data:clearData) print(hashMD5:\(hashMD5!as NSData)) 输出: clearString:clearData0123456 clearData:< 636c6561 72446174 61303132 33343536> hashSHA256:< aabc766b 6b357564 e41f4f91 2d494bcc bfa16924 b574abbd ba9e3e9d a0c8920a> hashMD5:< 4df665f7 b94aea69 695b0e7b baf9e9d6> Anyone knows how to reproduce PHP hashing method hash(‘SHA512’, $value, true) in swift ? I tried to use CommonCrypto C library with this code :extension String { func digest(length:Int32, gen:(data: UnsafePointer<Void>, len: CC_LONG, md: UnsafeMutablePointer<UInt8>) -> UnsafeMutablePointer<UInt8>) -> String { var cStr = [UInt8](self.utf8) var result = [UInt8](count:Int(length), repeatedValue:0) gen(data: &cStr, len: CC_LONG(cStr.count), md: &result) let output = NSMutableString(capacity:Int(length)) for r in result { output.appendFormat("%02x", r) } return String(output) }}and used it like this :var digest = salted.digest(CC_SHA512_DIGEST_LENGTH, gen: {(data, len, md) in CC_SHA512(data,len,md)})But I don't get the right outputEDIT :I have some PHP code :echo base64_encode(hash('sha512', '8yOrBmkd', true)); // output: rlltLWeWaQCrfNTYMa0CcIs0mfLoHGAynrd+d8H65+rGAzHS/BSWsumwSmcxF9aAG9TIzXx+HOjArPyLL3herg==And I want my swift code to output the same. The Base64 encoding is ok :let utf8str = input.dataUsingEncoding(NSUTF8StringEncoding)!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0)) let base64Encoded = utf8str!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0)) print("Encoded: \(base64Encoded)")But the hashing part return an output the same value as this PHP code :echo base64_encode(hash('sha512', '8yOrBmkd', false)); // output: YWU1OTZkMmQ2Nzk2NjkwMGFiN2NkNGQ4MzFhZDAyNzA4YjM0OTlmMmU4MWM2MDMyOWViNzdlNzdjMWZhZTdlYWM2MDMzMWQyZmMxNDk2YjJlOWIwNGE2NzMxMTdkNjgwMWJkNGM4Y2Q3YzdlMWNlOGMwYWNmYzhiMmY3ODVlYWU= 解决方案 Swift 3 implementatiomn at bottom.The code does not need to be so complex or an extension:func sha512Hex(string string: String) -> String { var digest = [UInt8](count: Int(CC_SHA512_DIGEST_LENGTH), repeatedValue: 0) if let data = string.dataUsingEncoding(NSUTF8StringEncoding) { CC_SHA512(data.bytes, CC_LONG(data.length), &digest) } var digestHex = "" for index in 0..<Int(CC_SHA512_DIGEST_LENGTH) { digestHex += String(format: "%02x", digest[index]) } return digestHex}//Test: let hexDigest = sha512Hex(string:"8yOrBmkd")print("hexDigest:\n\(hexDigest)")Output:Just returing the byte array:func sha512(string string: String) -> [UInt8] { var digest = [UInt8](count: Int(CC_SHA512_DIGEST_LENGTH), repeatedValue: 0) let data = string.dataUsingEncoding(NSUTF8StringEncoding)! CC_SHA512(data.bytes, CC_LONG(data.length), &digest) return digest}//Test:let digestRaw = sha512(string:"8yOrBmkd")print("decimal array:\n\(digestRaw)")print("hexadecimal:\n\(NSData(bytes:digestRaw, length:digestRaw.count).description)")Output: Base64 output:func sha512Base64(string string: String) -> String { let digest = NSMutableData(length: Int(CC_SHA512_DIGEST_LENGTH))! if let data = string.dataUsingEncoding(NSUTF8StringEncoding) { CC_SHA512(data.bytes, CC_LONG(data.length), UnsafeMutablePointer<UInt8>(digest.mutableBytes)) } return digest.base64EncodedStringWithOptions(NSDataBase64EncodingOptions([]))}//Test: let digestBase64 = sha512Base64(string:"8yOrBmkd")print("Base64:\n\(digestBase64)")Output:Base64:rlltLWeWaQCrfNTYMa0CcIs0mfLoHGAynrd+d8H65+rGAzHS/BSWsumwSmcxF9aAG9TIzXx+HOjArPyLL3herg==func hashSHA512(data:Data) -> String? { var hashData = Data(count: Int(CC_SHA512_DIGEST_LENGTH)) _ = hashData.withUnsafeMutableBytes {digestBytes in data.withUnsafeBytes {messageBytes in CC_SHA512(messageBytes, CC_LONG(data.count), digestBytes) } } // For hexadecimal output: return hashData.map { String(format: "%02hhx", $0) }.joined() // For Base64 output use this instead of the above: // return data.base64EncodedString()}Example from deprecated documentation section: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>MD2, MD4, MD5, SHA1, SHA224, SHA256, SHA384, SHA512 (Swift 3+)The name parameter specifies the hash function name as a StringSupported functions are MD2, MD4, MD5, SHA1, SHA224, SHA256, SHA384 and SHA512aThis 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.This function takes a hash name and String to be hashed and returns a Data:name: A name of a hash function as a Stringstring: The String to be hashedreturns: the hashed result as Datafunc hash(name:String, string:String) -> Data? { let data = string.data(using:.utf8)! return hash(name:name, data:data)}Examples:let clearString = "clearData0123456"let clearData = clearString.data(using:.utf8)!print("clearString: \(clearString)")print("clearData: \(clearData as NSData)")let hashSHA256 = hash(name:"SHA256", string:clearString)print("hashSHA256: \(hashSHA256! as NSData)")let hashMD5 = hash(name:"MD5", data:clearData)print("hashMD5: \(hashMD5! as NSData)")Output:clearString: clearData0123456clearData: <636c6561 72446174 61303132 33343536>hashSHA256: <aabc766b 6b357564 e41f4f91 2d494bcc bfa16924 b574abbd ba9e3e9d a0c8920a>hashMD5: <4df665f7 b94aea69 695b0e7b baf9e9d6> 这篇关于快速使用SHA512哈希字符串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! 上岸,阿里云! 08-24 18:58