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copied!<p>In .Net, you can create your key pair like this:</p> <pre><code>public static Tuple<string, string> CreateKeyPair() { CspParameters cspParams = new CspParameters { ProviderType = 1 }; RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(1024, cspParams); string publicKey = Convert.ToBase64String(rsaProvider.ExportCspBlob(false)); string privateKey = Convert.ToBase64String(rsaProvider.ExportCspBlob(true)); return new Tuple<string, string>(privateKey, publicKey); } </code></pre> <p>You can then use your public key to encrypt a message like so:</p> <pre><code>public static byte[] Encrypt(string publicKey, string data) { CspParameters cspParams = new CspParameters { ProviderType = 1 }; RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(cspParams); rsaProvider.ImportCspBlob(Convert.FromBase64String(publicKey)); byte[] plainBytes = Encoding.UTF8.GetBytes(data); byte[] encryptedBytes = rsaProvider.Encrypt(plainBytes, false); return encryptedBytes; } </code></pre> <p>And use your private key to decrypt like this:</p> <pre><code>public static string Decrypt(string privateKey, byte[] encryptedBytes) { CspParameters cspParams = new CspParameters { ProviderType = 1 }; RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(cspParams); rsaProvider.ImportCspBlob(Convert.FromBase64String(privateKey)); byte[] plainBytes = rsaProvider.Decrypt(encryptedBytes, false); string plainText = Encoding.UTF8.GetString(plainBytes, 0, plainBytes.Length); return plainText; } </code></pre>

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