如何在swift XCODE上对字符串进行AES 128加密并将其作为POST发送到服务器？

Question

如何对swift XCODE上的字符串进行AES 128加密并将其作为POST发送给服务器？... 我是XCODE的新手，正在学习对字符串数据进行加密并希望发送到HTTP服务器。这是一个基本的iOS应用程序发送设备的经度和纬度。

Answer 1

添加#import <CommonCrypto/CommonCryptor.h>到您的桥接报头，然后使用以下命令：

func encryptAES128(data: NSData, key: NSString, iv: NSString) -> NSData? { 
    let keyPtr = UnsafeMutablePointer<CChar>.allocate(capacity: Int(kCCKeySizeAES128) + 1) 

    defer { 
     keyPtr.deallocate(capacity: Int(kCCKeySizeAES128) + 1) 
    } 

    let ivPtr = iv.utf8String 
    bzero(keyPtr, 0) 
    key.getCString(keyPtr, maxLength: Int(kCCKeySizeAES128) + 1, encoding: String.Encoding.utf8.rawValue) 

    let bufferSize = data.length + kCCBlockSizeAES128 
    let buffer = UnsafeMutableRawPointer.allocate(bytes: bufferSize, alignedTo: MemoryLayout.alignment(ofValue: CChar.self)) 

    var numBytesEncrypted = 0 

    let cryptStatus = CCCrypt(CCOperation(kCCEncrypt), CCAlgorithm(kCCAlgorithmAES128), CCOptions(kCCOptionPKCS7Padding), keyPtr, kCCKeySizeAES128, ivPtr, data.bytes, data.length, buffer, bufferSize, &numBytesEncrypted) 

    if cryptStatus == kCCSuccess { 
     return NSData(bytesNoCopy: buffer, length: numBytesEncrypted, freeWhenDone: true) 
    } 

    buffer.deallocate(bytes: bufferSize, alignedTo: MemoryLayout.alignment(ofValue: CChar.self)) 
    return nil 
} 

将其发送到服务器，基于64位编码的结果，并发送。然后在服务器端，base64解码结果并解密。基于从实例

Answer 2

：https://github.com/krzyzanowskim/CryptoSwift

要使用加密字符串CryptoSwift：

func encrypt(text: String) -> String? { 
    if let aes = try? AES(key: "passwordpassword", iv: "drowssapdrowssap"), 
     let encrypted = try? aes.encrypt(Array(text.utf8)) { 
     return encrypted.toHexString() 
    } 
    return nil 
} 

要解密：

func decrypt(hexString: String) -> String? { 
    if let aes = try? AES(key: "passwordpassword", iv: "drowssapdrowssap"), 
     let decrypted = try? aes.decrypt(Array<UInt8>(hex: hexString)) { 
     return String(data: Data(bytes: decrypted), encoding: .utf8) 
    } 
    return nil 
} 

要发送的值的服务器查询： HTTP Request in Swift with POST method或数千个帖子中的任何一个如何将数据发送到服务器。