Swift中带有SHA512的哈希字符串

有人知道如何在swift中重现PHP散列方法hash（'SHA512'，$value，true）？我尝试将CommonCrypto C库与以下代码一起使用：

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)
    }
}

但是我没有得到正确的输出

编辑：

我有一些PHP代码：

echo base64_encode(hash('sha512', '8yOrBmkd', true)); // output: rlltLWeWaQCrfNTYMa0CcIs0mfLoHGAynrd+d8H65+rGAzHS/BSWsumwSmcxF9aAG9TIzXx+HOjArPyLL3herg==

echo base64_encode(hash('sha512', '8yOrBmkd', false)); // output: YWU1OTZkMmQ2Nzk2NjkwMGFiN2NkNGQ4MzFhZDAyNzA4YjM0OTlmMmU4MWM2MDMyOWViNzdlNzdjMWZhZTdlYWM2MDMzMWQyZmMxNDk2YjJlOWIwNGE2NzMxMTdkNjgwMWJkNGM4Y2Q3YzdlMWNlOGMwYWNmYzhiMmY3ODVlYWU=

我希望我的swift代码输出相同的结果。Base64编码正常：

let utf8str = input.dataUsingEncoding(NSUTF8StringEncoding)!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))
                let base64Encoded = utf8str!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))
                print("Encoded:  \(base64Encoded)")

但散列部分返回的输出值与此PHP代码相同：

echo base64_encode(hash('sha512', '8yOrBmkd', true)); // output: rlltLWeWaQCrfNTYMa0CcIs0mfLoHGAynrd+d8H65+rGAzHS/BSWsumwSmcxF9aAG9TIzXx+HOjArPyLL3herg==

echo base64_encode(hash('sha512', '8yOrBmkd', false)); // output: YWU1OTZkMmQ2Nzk2NjkwMGFiN2NkNGQ4MzFhZDAyNzA4YjM0OTlmMmU4MWM2MDMyOWViNzdlNzdjMWZhZTdlYWM2MDMzMWQyZmMxNDk2YjJlOWIwNGE2NzMxMTdkNjgwMWJkNGM4Y2Q3YzdlMWNlOGMwYWNmYzhiMmY3ODVlYWU=

---

底部为Swift 3实现

代码不需要如此复杂或扩展：

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
}

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>

clearString: clearData0123456
clearData: <636c6561 72446174 61303132 33343536>

hashSHA256: <aabc766b 6b357564 e41f4f91 2d494bcc bfa16924 b574abbd ba9e3e9d a0c8920a>
hashMD5: <4df665f7 b94aea69 695b0e7b baf9e9d6>

海克斯文摘： AE596D2D6796900AB7CD4D831AD02708B349F2E81C60329EB77E77C1FAE7EAC60331D2FC1496B2E9B04A673117D6801BD4C8CD7C7E1CE8C0ACFC8B2F785EAE

只需返回字节数组：

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:\n\(digestRaw)")
print("hexadecimal:\n\(NSData(bytes:digestRaw, length:digestRaw.count).description)")

输出：

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、192、172、252、139、47、120、94、174]

十六进制：
AE596D2D6796900AB7CD4D831AD02708B349F2E81C60329EB77E77C1FAE7EAC60331D2FC1496B2E9B04A673117D6801BD4C8CD7C7E1CE8C0ACFC8B2F785EAE

Base64输出：

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([]))
}

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>

clearString: clearData0123456
clearData: <636c6561 72446174 61303132 33343536>

hashSHA256: <aabc766b 6b357564 e41f4f91 2d494bcc bfa16924 b574abbd ba9e3e9d a0c8920a>
hashMD5: <4df665f7 b94aea69 695b0e7b baf9e9d6>

Base64：

rlltlwaqcrftyma0ccis0mflohgaynrd+d8H65+rGAzHS/bswsumwsmcxf9aag9tizzx+HOjArPyLL3herg==

斯威夫特3

不推荐使用的文档部分中的示例： HMAC配备MD5、SHA1、SH224、SH256、SH384、SH512（Swift 3+）

这些函数将使用八种加密哈希算法之一对字符串或数据输入进行哈希

name参数将哈希函数名称指定为字符串 支持的函数有MD5、SHA1、SH224、SH256、SH384和SH512

此示例需要通用加密
有必要为项目设置桥接标题：

#导入

将Security.framework添加到项目中

这些函数采用散列名称、要散列的消息、键并返回摘要：

---

}

---

---

//例子

let 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)")

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>

clearString: clearData0123456
clearData: <636c6561 72446174 61303132 33343536>

hashSHA256: <aabc766b 6b357564 e41f4f91 2d494bcc bfa16924 b574abbd ba9e3e9d a0c8920a>
hashMD5: <4df665f7 b94aea69 695b0e7b baf9e9d6>

示例：

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)")

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>

clearString: clearData0123456
clearData: <636c6561 72446174 61303132 33343536>

hashSHA256: <aabc766b 6b357564 e41f4f91 2d494bcc bfa16924 b574abbd ba9e3e9d a0c8920a>
hashMD5: <4df665f7 b94aea69 695b0e7b baf9e9d6>

clearString:clearData0123456
clearData：
hashSHA256：
hashMD5：

使用swift 4更新此文件

func sha512Hex( string: String) -> String {
    var digest = [UInt8](repeating: 0, count: Int(CC_SHA512_DIGEST_LENGTH))
    if let data = string.data(using: String.Encoding.utf8) {
        let value =  data as NSData
        CC_SHA512(value.bytes, CC_LONG(data.count), &digest)

    }
    var digestHex = ""
    for index in 0..<Int(CC_SHA512_DIGEST_LENGTH) {
        digestHex += String(format: "%02x", digest[index])
    }

    return digestHex
}


func sha512(string: String) -> [UInt8] {
    var digest = [UInt8](repeating: 0, count: Int(CC_SHA512_DIGEST_LENGTH))
    let data = string.data(using: String.Encoding.utf8 , allowLossyConversion: true)
    let value =  data! as NSData
    CC_SHA512(value.bytes, CC_LONG(value.length), &digest)

    return digest
}

func sha512Base64(string: String) -> String {
    let digest = NSMutableData(length: Int(CC_SHA512_DIGEST_LENGTH))!
    if let data = string.data(using: String.Encoding.utf8) {

        let value =  data as NSData
        let uint8Pointer = UnsafeMutablePointer<UInt8>.allocate(capacity: digest.length)
        CC_SHA512(value.bytes, CC_LONG(data.count), uint8Pointer)

    }
    return digest.base64EncodedString(options: NSData.Base64EncodingOptions([]))
}

---

通过在iOS13中添加

CryptoKit

，我们现在有了本机Swift API：

<代码>导入基础 导入加密套件 //CryptoKit.Digest utils 扩展摘要{ 变量字节：[UInt8]{Array（makeIterator（））} 变量数据：数据{data（字节）} var-hextr:String{ bytes.map{String（格式：'%02X'，$0）}.joined（） } } func示例（）{ guard let data=“hello world”。数据（使用：.utf8）else{return} let digest=SHA512.hash（数据：数据） 打印（摘要.数据）//64字节 打印（digest.hexStr）//309ECC489C12D6EB4C40F50C902F2B4D0ED77EE511A7C7A9BCD3CA86D4CD86F989DD35BC5FF499670DA34255B45B0CFD830E81F605DCF7DC5542E93AE9CD76F }

---

请展示一个完整的、可复制的示例，其中包含输入数据、实际输出和预期输出。您需要解释问题，请使用更多，似乎存在编码问题，即您如何在Swift中使用哈希。原始输出不是可打印的；e/displayable string，它是一个8位字节的数组，其中一些字节在某些编码中不可显示，甚至不合法，这就是为什么在必须以可视格式表示时使用十六进制和/或Base64。我这里的问题是php中的最终输出（Base64编码）与swift中的最终输出（也是Base64编码）不匹配，但如果我使用php hash（）方法并将其第三个参数设置为false（不是原始二进制值），则它们确实匹配。我无法控制这个php脚本，这就是为什么我试图在swift代码中获得原始值。此外，当我在php中显示非base64编码的输出时，它会显示一个带有不可识别字符的字符串，而在swift中，它是一个字节数组（显然）。这是一个输出编码问题和/或二进制（原始）输出的显示问题。二进制通常以十六进制显示。这看起来不错，但php方法对于原始输出设置为true，我如何在swift中实现这一点？什么是“原始输出”？跳过十六进制转换？见补充的sha512。根据要求，提供所需的示例输入和输出。我在问题中添加了一个示例，第三个php参数用于定义输出：原始二进制值或十六进制。我尝试用SWIFT获取原始二进制值。输出是Base64编码的，示例添加到了答案中。添加了原始字节数组的测试输出。sha512Base64似乎是bork

func hash(name:String, string:String) -> Data? {
    let data = string.data(using:.utf8)!
    return hash(name:name, data:data)
}

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)")

clearString: clearData0123456
clearData: <636c6561 72446174 61303132 33343536>

hashSHA256: <aabc766b 6b357564 e41f4f91 2d494bcc bfa16924 b574abbd ba9e3e9d a0c8920a>
hashMD5: <4df665f7 b94aea69 695b0e7b baf9e9d6>

func sha512Hex( string: String) -> String {
    var digest = [UInt8](repeating: 0, count: Int(CC_SHA512_DIGEST_LENGTH))
    if let data = string.data(using: String.Encoding.utf8) {
        let value =  data as NSData
        CC_SHA512(value.bytes, CC_LONG(data.count), &digest)

    }
    var digestHex = ""
    for index in 0..<Int(CC_SHA512_DIGEST_LENGTH) {
        digestHex += String(format: "%02x", digest[index])
    }

    return digestHex
}


func sha512(string: String) -> [UInt8] {
    var digest = [UInt8](repeating: 0, count: Int(CC_SHA512_DIGEST_LENGTH))
    let data = string.data(using: String.Encoding.utf8 , allowLossyConversion: true)
    let value =  data! as NSData
    CC_SHA512(value.bytes, CC_LONG(value.length), &digest)

    return digest
}

func sha512Base64(string: String) -> String {
    let digest = NSMutableData(length: Int(CC_SHA512_DIGEST_LENGTH))!
    if let data = string.data(using: String.Encoding.utf8) {

        let value =  data as NSData
        let uint8Pointer = UnsafeMutablePointer<UInt8>.allocate(capacity: digest.length)
        CC_SHA512(value.bytes, CC_LONG(data.count), uint8Pointer)

    }
    return digest.base64EncodedString(options: NSData.Base64EncodingOptions([]))
}

    let vad = sha512Hex(string: "8yOrBmkd")
    print(vad)

    let digestRaw = sha512(string:"8yOrBmkd")
    print("decimal array:\n\(digestRaw)")
    print("hexadecimal:\n\(NSData(bytes:digestRaw, length:digestRaw.count).description)")

    let digestBase64 = sha512Base64(string:"8yOrBmkd")
    print("Base64:\n\(digestBase64)")