MD5 3DES加密Swift [英] MD5 3DES encryption Swift
问题描述
我有一个应用程序，必须发送先由MD5然后由3DES加密的登录凭据.
I have an app that must send login credentials that have been encrypted first by MD5 and then by 3DES.
我设法使用CryptoSwift通过MD5加密字符串. 但是我找不到任何可以在Swift上通过3DES加密的东西.
I have managed to use CryptoSwift to encrypt the string by MD5. However I cannot find anything to encrypt by 3DES on Swift.
我尝试过CommonCrypto.据我所知，这是用C语言编写的，但可以通过桥接标头导入到Objective C中.
I have tried CommonCrypto. As far as I can tell this is in C but could be imported into Objective C with a bridging header.
我发现了一些文章和教程，它们告诉我如何通过桥接标头(警告它不适用于框架)或Model.map将CommonCrypto导入Swift.但是，两者都不起作用.我不确定这是否是最新版本的iOS或Xcode中的限制.
I have found a few articles and tutorials that tell me how to import CommonCrypto into Swift, either by a bridging header(with the warning it will not work with frameworks) or by Model.map. However neither are working. Im not sure if this is a limitation in the latest versions of iOS or Xcode.
有人可以建议替代方法吗?
Could someone please advise an alternative?
谢谢
已编辑
您好，请参阅我已执行的以下步骤
Hi, please see the below steps I have taken
- 好的，所以我创建了一个名为newEncrypt的新项目.
- 我选择不使用标头选项，因为说明说这仅限于非Framework应用程序/
- 我在newEncrypt内创建了一个名为CommonCrypto的文件夹，其中包含module.map文件.其内容为:module CommonCrypto [system] { 标头"/usr/include/CommonCrypto/CommonCrypto.h" 出口 * }
- 添加了$ {SRCROOT}/CommonCrypto，以加快编译器搜索路径导入路径.调试并发布.
- 这是指示停止的地方.我假设我需要将CommonCrypto导入到我的班级中.出现无法建立目标C模块'CommonCrypto'的错误. 我还假设我应该在"/usr/include/CommonCrypto/CommonCrypto.h"或"/newEncrypt/CommonCrypto/CommonCrypto.h"中拥有CommonCrypto库文件(来自CommonCryto的"include"文件夹)? 我已经尝试过了，但是却遇到了同样的错误.
- 然后我尝试使用#import广告头文件，并将-lfoo添加到其他链接器标志中进行调试和释放(尽管这可能不是正确的)，以防万一仍然需要这样做.但是我仍然得到同样的无法建立客观c错误的信息. 我确定我做错了那很明显
- Ok so I created a new project called newEncrypt.
- I chose not to use the header option as the instructions say this is limited to non Framework apps/
- I created a folder inside newEncrypt called CommonCrypto, with a module.map file inside. the contents of which are: module CommonCrypto [system] { header "/usr/include/CommonCrypto/CommonCrypto.h" export * }
- added ${SRCROOT}/CommonCrypto to swift compiler-search paths-import paths. Debug and release.
- This is where the instructions sort of stop. I assume I need to import CommonCrypto into my class. This error with "could not build objective C module ‘CommonCrypto’. Im also assuming I should have the CommonCrypto library files (from the CommonCryto ‘include’ folder) in "/usr/include/CommonCrypto/CommonCrypto.h" or "/newEncrypt/CommonCrypto/CommonCrypto.h"? I have tried this, but I just get the same errors.
- I have then tried to ad a header file with #import and added -lfoo to other linker flags debug and release (although this may not be the correct one) ust in case this could still be required. But I still get the same could not build objective c error. Im sure I am doing something wrong thats obvious
推荐答案
因此，事实证明，我完全使这一过程复杂化了.
So it turns out I was completely overcomplicating this.
已经有一篇非常有用的文章 http ://www.stackoverflow.dluat.com/questions/31004609/how-to-convert-common-crypto-code-from-objective-c-to-swift
There is a really useful article already http://www.stackoverflow.dluat.com/questions/31004609/how-to-convert-common-crypto-code-from-objective-c-to-swift
我不需要导入任何外部库或SDK，我所需要的只是一个桥接标头，并连接到#import <CommonCrypto/CommonCrypto.h>
I didn't need to import any external libraries or SDKs, all I needed was a bridging header and to #import <CommonCrypto/CommonCrypto.h>
override func viewDidLoad() {
super.viewDidLoad()
myEncrypt("my string to encrypt")
}
func myEncrypt(encryptData:String) -> NSData?{
var myKeyData : NSData = ("myEncryptionKey" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!
var myRawData : NSData = encryptData.dataUsingEncoding(NSUTF8StringEncoding)!
var iv : [UInt8] = [56, 101, 63, 23, 96, 182, 209, 205] // I didn't use
var buffer_size : size_t = myRawData.length + kCCBlockSize3DES
var buffer = UnsafeMutablePointer<NSData>.alloc(buffer_size)
var num_bytes_encrypted : size_t = 0
let operation: CCOperation = UInt32(kCCEncrypt)
let algoritm: CCAlgorithm = UInt32(kCCAlgorithm3DES)
let options: CCOptions = UInt32(kCCOptionECBMode + kCCOptionPKCS7Padding)
let keyLength = size_t(kCCKeySize3DES)
var Crypto_status: CCCryptorStatus = CCCrypt(operation, algoritm, options, myKeyData.bytes, keyLength, nil, myRawData.bytes, myRawData.length, buffer, buffer_size, &num_bytes_encrypted)
if UInt32(Crypto_status) == UInt32(kCCSuccess){
var myResult: NSData = NSData(bytes: buffer, length: num_bytes_encrypted)
free(buffer)
println("my result \(myResult)") //This just prints the data
let keyData: NSData = myResult
let hexString = keyData.toHexString()
println("hex result \(hexString)") // I needed a hex string output
myDecrypt(myResult) // sent straight to the decryption function to test the data output is the same
return myResult
}else{
free(buffer)
return nil
}
}
func myDecrypt(decryptData : NSData) -> NSData?{
var mydata_len : Int = decryptData.length
var keyData : NSData = ("myEncryptionKey" as NSString).dataUsingEncoding(NSUTF8StringEncoding)!
var buffer_size : size_t = mydata_len+kCCBlockSizeAES128
var buffer = UnsafeMutablePointer<NSData>.alloc(buffer_size)
var num_bytes_encrypted : size_t = 0
var iv : [UInt8] = [56, 101, 63, 23, 96, 182, 209, 205] // I didn't use
let operation: CCOperation = UInt32(kCCDecrypt)
let algoritm: CCAlgorithm = UInt32(kCCAlgorithm3DES)
let options: CCOptions = UInt32(kCCOptionECBMode + kCCOptionPKCS7Padding)
let keyLength = size_t(kCCKeySize3DES)
var decrypt_status : CCCryptorStatus = CCCrypt(operation, algoritm, options, keyData.bytes, keyLength, nil, decryptData.bytes, mydata_len, buffer, buffer_size, &num_bytes_encrypted)
if UInt32(decrypt_status) == UInt32(kCCSuccess){
var myResult : NSData = NSData(bytes: buffer, length: num_bytes_encrypted)
free(buffer)
println("decrypt \(myResult)")
var stringResult = NSString(data: myResult, encoding:NSUTF8StringEncoding)
println("my decrypt string \(stringResult!)")
return myResult
}else{
free(buffer)
return nil
}
}
我希望这对某人有帮助.
I hope this helps someone.
这篇关于MD5 3DES加密Swift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IT屋！
