Proyectos de Subversion Iphone Microlearning - Nuevo Interface

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//
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//  HeaderSecurity.swift
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//  twogetskills
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//
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//  Created by Efrain Yanez Recanatini on 5/6/22.
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//
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import Foundation
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import var CommonCrypto.CC_MD5_DIGEST_LENGTH
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import func CommonCrypto.CC_MD5
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import typealias CommonCrypto.CC_LONG
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class HeaderSecurity
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{
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    public let created : Int
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    public let rand : Int
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    public var secret : String = ""
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    private let appData = AppData.sharedInstance
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    init()
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    {
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        created = Int(round(Date().timeIntervalSince1970))
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        rand = Int.random(in: 0..<8999) + 1000
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        let md5Data = MD5(string: "\(appData.password)" + ":" + "\(created)" + ":" + "\(rand)")
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        secret =  md5Data.map {
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            String(format: "%02hhx", $0)
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        }.joined()
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    }
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    func MD5(string: String) -> Data {
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        let length = Int(CC_MD5_DIGEST_LENGTH)
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        let messageData = string.data(using:.utf8)!
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        var digestData = Data(count: length)
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        _ = digestData.withUnsafeMutableBytes { digestBytes -> UInt8 in
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        messageData.withUnsafeBytes { messageBytes -> UInt8 in
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        if let messageBytesBaseAddress = messageBytes.baseAddress, let digestBytesBlindMemory = digestBytes.bindMemory(to: UInt8.self).baseAddress {
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                let messageLength = CC_LONG(messageData.count)
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                    CC_MD5(messageBytesBaseAddress, messageLength, digestBytesBlindMemory)
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                }
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            return 0
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            }
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        }
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        return digestData
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    }
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}