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在 C# 中實(shí)現(xiàn)圖像加密與解密可以使用以下步驟:
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
public static void EncryptImage(string inputImageFile, string outputImageFile, string key)
{
Bitmap originalImage = new Bitmap(inputImageFile);
for (int i = 0; i < originalImage.Width; i++)
{
for (int j = 0; j < originalImage.Height; j++)
{
Color pixel = originalImage.GetPixel(i, j);
int red = pixel.R ^ key.GetHashCode();
int green = pixel.G ^ key.GetHashCode();
int blue = pixel.B ^ key.GetHashCode();
Color encryptedPixel = Color.FromArgb(red, green, blue);
originalImage.SetPixel(i, j, encryptedPixel);
}
}
originalImage.Save(outputImageFile, ImageFormat.Png);
}
public static void DecryptImage(string inputImageFile, string outputImageFile, string key)
{
Bitmap encryptedImage = new Bitmap(inputImageFile);
for (int i = 0; i < encryptedImage.Width; i++)
{
for (int j = 0; j < encryptedImage.Height; j++)
{
Color pixel = encryptedImage.GetPixel(i, j);
int red = pixel.R ^ key.GetHashCode();
int green = pixel.G ^ key.GetHashCode();
int blue = pixel.B ^ key.GetHashCode();
Color decryptedPixel = Color.FromArgb(red, green, blue);
encryptedImage.SetPixel(i, j, decryptedPixel);
}
}
encryptedImage.Save(outputImageFile, ImageFormat.Png);
}
string inputImageFile = "inputImage.png";
string outputEncryptedImageFile = "encryptedImage.png";
string outputDecryptedImageFile = "decryptedImage.png";
string key = "secretKey";
EncryptImage(inputImageFile, outputEncryptedImageFile, key);
DecryptImage(outputEncryptedImageFile, outputDecryptedImageFile, key);
通過(guò)以上步驟,您可以在 C# 中實(shí)現(xiàn)簡(jiǎn)單的圖像加密和解密技朽。請(qǐng)注意,此處使用的加密算法較為簡(jiǎn)單,您也可以選擇更加復(fù)雜的加密算法來(lái)提高安全性。
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