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) }} 并像这样使用它：
var digest = salted.digest(CC_SHA512_DIGEST_LENGTH,gen: {(data,len,md) in CC_SHA512(data,md)}) 但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== 我希望我的快速代码能够输出相同的代码. Base64编码没问题：
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与此PHP代码的值相同：
echo base64_encode(hash('sha512',false)); // output: YWU1OTZkMmQ2Nzk2NjkwMGFiN2NkNGQ4MzFhZDAyNzA4YjM0OTlmMmU4MWM2MDMyOWViNzdlNzdjMWZhZTdlYWM2MDMzMWQyZmMxNDk2YjJlOWIwNGE2NzMxMTdkNjgwMWJkNGM4Y2Q3YzdlMWNlOGMwYWNmYzhiMmY3ODVlYWU= Swift 3在底部实现. 代码不需要那么复杂或扩展：
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} //测试：
let hexDigest = sha512Hex(string:"8yOrBmkd")print("hexDigest:\n\(hexDigest)") 输出：
hexDigest:
ae596d2d67966900ab7cd4d831ad02708b3499f2e81c60329eb77e77c1fae7eac60331d2fc1496b2e9b04a673117d6801bd4c8cd7c7e1ce8c0acfc8b2f785eae
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,&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：
decimal array:
[174,89,109,45,103,150,105,171,124,212,216,49,173,2,112,139,52,153,242,232,28,96,50,158,183,126,119,193,250,231,234,198,3,210,252,20,178,233,176,74,23,214,128,27,200,205,192,172,47,120,94,174]hexadecimal:
ae596d2d67966900ab7cd4d831ad02708b3499f2e81c60329eb77e77c1fae7eac60331d2fc1496b2e9b04a673117d6801bd4c8cd7c7e1ce8c0acfc8b2f785eae
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,UnsafeMutablePointer<UInt8>(digest.mutableBytes)) } return digest.base64EncodedStringWithOptions(NSDataBase64EnCodingOptions([]))} //测试：
let digestBase64 = sha512Base64(string:"8yOrBmkd")print("Base64:\n\(digestBase64)") 输出：
Base64编码：
rlltLWetLWeWaQCrfNTYMa0CcIs0mfLoHGAynrd d8H65 rGAzHS / BSWsumwSmcxF9aAG9TIzXx HOjArPyLL3herg ==
Swift 3
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",hashname: name of a hash function as String message: message as Data key: key as Data returns: digest as Data
) }.joined() // For Base64 output use this instead of the above: // return data.base64EncodedString()} 不推荐使用的文档部分示例：
HMAC与MD5,SHA1,SHA224,SHA256,SHA384,SHA512(Swift 3)
These functions will hash either String or Data input with one of eight cryptographic hash algorithms.
name参数将散列函数名称指定为String
支持的功能有MD5,SHA384和SHA512
此示例需要Common Crypto
有必要为项目建立一个桥接头：
#import< CommonCrypto / CommonCrypto.h>
将Security.framework添加到项目中.
这些函数采用哈希名称,要散列的消息,密钥并返回摘要：
func 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 Data
}
func 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 String message: message as String key: key as Data returns: digest as Data
func hmac(hashname:String,key:Data) -> Data? { let messageData = message.data(using:.utf8)! return hmac(hashname:hashname,key:key)} 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",key:keyData)print("hmacdata3: \(hmacdata3! as NSData)") // 例子
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>
输出：
name: A name of a hash function as a String string: The String to be hashed returns: the hashed result as Data
MD2,MD4,MD5,SHA512(Swift 3)
These functions will hash either String or Data input with one of eight cryptographic hash algorithms.
name参数将散列函数名称指定为String
支持的功能有MD2,SHA384和SHA512
一个
此示例需要Common Crypto
有必要为项目建立一个桥接头：
#import< CommonCrypto / CommonCrypto.h>
将Security.framework添加到项目中.
此函数将哈希名称和字符串进行哈希处理并返回一个数据：
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)") 例子：
clearString: clearData0123456clearData: <636c6561 72446174 61303132 33343536>hashSHA256: <aabc766b 6b357564 e41f4f91 2d494bcc bfa16924 b574abbd ba9e3e9d a0c8920a>hashMD5: <4df665f7 b94aea69 695b0e7b baf9e9d6>
输出：
总结以上是内存溢出为你收集整理的在swift中使用SHA512哈希字符串全部内容，希望文章能够帮你解决在swift中使用SHA512哈希字符串所遇到的程序开发问题。
如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。
欢迎分享，转载请注明来源：内存溢出
微信扫一扫
支付宝扫一扫
评论列表（0条）