UWP：AES加密和解密 [英] UWP: AES encryption and decryption
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问题描述
我尝试使用 Windows.Security.Cryptography.Core ，但我完全卡住了。
这是我用于Windows Phone 8的原始类。我必须在互联网上找到它。
使用System.Security.Cryptography;
命名空间TestGame
{
public class AesEnDecryption
{
private string AES_Key =MYLiSQ864FhDevJOeMs9EVp5RmfC7OuH;
私人字符串AES_IV =FoL5Tyd9sZclVn5A;
public string AES_encrypt（string Input）
{
var aes = new AesManaged（）;
aes.KeySize = 128;
aes.BlockSize = 128;
aes.Key = Convert.FromBase64String（AES_Key）;
aes.IV = Encoding.UTF8.GetBytes（AES_IV）;
var encrypt = aes.CreateEncryptor（aes.Key，aes.IV）;
byte [] xBuff = null;
使用（var ms = new MemoryStream（））
{
using（var cs = new CryptoStream（ms，encrypt，CryptoStreamMode.Write））
{
byte [] xXml = Encoding.UTF8.GetBytes（Input）;
cs.Write（xXml，0，xXml.Length）;
}
xBuff = ms.ToArray（）;
}
string Output = Convert.ToBase64String（xBuff）;
return输出;
}
public string AES_decrypt（string Input）
{
var aes = new AesManaged（）;
aes.KeySize = 128;
aes.BlockSize = 128;
aes.Key = Convert.FromBase64String（AES_Key）;
aes.IV = Encoding.UTF8.GetBytes（AES_IV）;
var decrypt = aes.CreateDecryptor（）;
byte [] xBuff = null;
使用（var ms = new MemoryStream（））
{
using（var cs = new CryptoStream（ms，decrypt，CryptoStreamMode.Write））
{
byte [] xXml = Convert.FromBase64String（Input）;
cs.Write（xXml，0，xXml.Length）;
}
xBuff = ms.ToArray（）;
}
string输出= Encoding.UTF8.GetString（xBuff，0，xBuff.Length）;
return输出;
}
}
}
有人知道如何翻译这对于UWP Windows 10应用程序？
谢谢！
解决方案
需要阅读有关 SymmetricAlgorithmProvider 和 CryptographicEngine。
我在这里有一个例子，如何一起使用：
使用系统;
使用System.Linq;
使用System.Runtime.InteropServices.WindowsRuntime;
使用System.Text;
使用Windows.Security.Cryptography;
使用Windows.Security.Cryptography.Core;
使用Windows.Storage.Streams;
命名空间CryptTest
{
public class AesEnDecryption
{
//键256和IV，16个长度
private string AES_Key =Y + 3xQDLPWalRKK3U / JuabsJNnuEO91zRiOH5gjgOqck =;
私有字符串AES_IV =15CV1 / ZOnVI3rY4wk4INBg ==;
private IBuffer m_iv = null;
private CryptographicKey m_key;
public AesEnDecryption（）
{
IBuffer key = Convert.FromBase64String（AES_Key）.AsBuffer（）;
m_iv = Convert.FromBase64String（AES_IV）.AsBuffer（）;
SymmetricKeyAlgorithmProvider provider = SymmetricKeyAlgorithmProvider.OpenAlgorithm（SymmetricAlgorithmNames.AesCbcPkcs7）;
m_key = provider.CreateSymmetricKey（key）;
}
public byte [] Encrypt（byte [] input）
{
IBuffer bufferMsg = CryptographicBuffer.ConvertStringToBinary（Encoding.ASCII.GetString（输入），BinaryStringEncoding.Utf8）;
IBuffer bufferEncrypt = CryptographicEngine.Encrypt（m_key，bufferMsg，m_iv）;
return bufferEncrypt.ToArray（）;
}
public byte [] Decrypt（byte [] input）
{
IBuffer bufferDecrypt = CryptographicEngine.Decrypt（m_key，input.AsBuffer（），m_iv） ;
return bufferDecrypt.ToArray（）;
}
}
}
当您想使用其他算法然后 AesCbcPkcs7 ，那么你必须更改 SymmetricAlgorithmName
I had a simple class to do some basic local encryption for Windows Phone 8. I wanted to use the class again in a new UWP Windows 10 app for the Windows Store. Unfortunately I cannot use the AesManaged class anymore.
I tried to use Windows.Security.Cryptography.Core, but I'm completely stuck.
This is the original class I used for Windows Phone 8. I must have found it somewhere on the internet back then.
using System.Security.Cryptography;
namespace TestGame
{
public class AesEnDecryption
{
private string AES_Key = "MYLiSQ864FhDevJOeMs9EVp5RmfC7OuH";
private string AES_IV = "FoL5Tyd9sZclVn5A";
public string AES_encrypt(string Input)
{
var aes = new AesManaged();
aes.KeySize = 128;
aes.BlockSize = 128;
aes.Key = Convert.FromBase64String(AES_Key);
aes.IV = Encoding.UTF8.GetBytes(AES_IV);
var encrypt = aes.CreateEncryptor(aes.Key, aes.IV);
byte[] xBuff = null;
using (var ms = new MemoryStream())
{
using (var cs = new CryptoStream(ms, encrypt, CryptoStreamMode.Write))
{
byte[] xXml = Encoding.UTF8.GetBytes(Input);
cs.Write(xXml, 0, xXml.Length);
}
xBuff = ms.ToArray();
}
string Output = Convert.ToBase64String(xBuff);
return Output;
}
public string AES_decrypt(string Input)
{
var aes = new AesManaged();
aes.KeySize = 128;
aes.BlockSize = 128;
aes.Key = Convert.FromBase64String(AES_Key);
aes.IV = Encoding.UTF8.GetBytes(AES_IV);
var decrypt = aes.CreateDecryptor();
byte[] xBuff = null;
using (var ms = new MemoryStream())
{
using (var cs = new CryptoStream(ms, decrypt, CryptoStreamMode.Write))
{
byte[] xXml = Convert.FromBase64String(Input);
cs.Write(xXml, 0, xXml.Length);
}
xBuff = ms.ToArray();
}
string Output = Encoding.UTF8.GetString(xBuff, 0, xBuff.Length);
return Output;
}
}
}
Does someone knows how to translate this for UWP Windows 10 apps?
Thanks!
解决方案
You need to read the Documentation about SymmetricAlgorithmProvider and CryptographicEngine.
I have here a little example, how to use these together:
using System;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using System.Text;
using Windows.Security.Cryptography;
using Windows.Security.Cryptography.Core;
using Windows.Storage.Streams;
namespace CryptTest
{
public class AesEnDecryption
{
// Key with 256 and IV with 16 length
private string AES_Key = "Y+3xQDLPWalRKK3U/JuabsJNnuEO91zRiOH5gjgOqck=";
private string AES_IV = "15CV1/ZOnVI3rY4wk4INBg==";
private IBuffer m_iv = null;
private CryptographicKey m_key;
public AesEnDecryption()
{
IBuffer key = Convert.FromBase64String(AES_Key).AsBuffer();
m_iv = Convert.FromBase64String(AES_IV).AsBuffer();
SymmetricKeyAlgorithmProvider provider = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7);
m_key = provider.CreateSymmetricKey(key);
}
public byte[] Encrypt(byte[] input)
{
IBuffer bufferMsg = CryptographicBuffer.ConvertStringToBinary(Encoding.ASCII.GetString(input), BinaryStringEncoding.Utf8);
IBuffer bufferEncrypt = CryptographicEngine.Encrypt(m_key, bufferMsg, m_iv);
return bufferEncrypt.ToArray();
}
public byte[] Decrypt(byte[] input)
{
IBuffer bufferDecrypt = CryptographicEngine.Decrypt(m_key, input.AsBuffer(), m_iv);
return bufferDecrypt.ToArray();
}
}
}
When you want to use another Algorithm then AesCbcPkcs7, then you have to change the SymmetricAlgorithmName
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