static async Task MainAsync(string[] args)
{
var keyClient = new KeyVaultClient((authority, resource, scope) =>
{
var adCredential = new ClientCredential(applicationId, applicationSecret);
var authenticationContext = new AuthenticationContext(authority, null);
return authenticationContext.AcquireToken(resource, adCredential).AccessToken;
});
// Get the key details
var keyIdentifier = "https://testvaultrahul.vault.azure.net/keys/rahulkey/0f653b06c1d94159bc7090596bbf7784";
var key = await keyClient.GetKeyAsync(keyIdentifier);
var publicKey = Convert.ToBase64String(key.Key.N);
using (var rsa = new RSACryptoServiceProvider())
{
var p = new RSAParameters() { Modulus = key.Key.N, Exponent = key.Key.E };
rsa.ImportParameters(p);
var byteData = Encoding.Unicode.GetBytes(textToEncrypt);
// Encrypt and Decrypt
var encryptedText = rsa.Encrypt(byteData, true);
var decryptedData = await keyClient.DecryptDataAsync(keyIdentifier, "RSA_OAEP", encryptedText);
var decryptedText = Encoding.Unicode.GetString(decryptedData.Result);
// Sign and Verify
var hasher = new SHA256CryptoServiceProvider();
var digest = hasher.ComputeHash(byteData);
var signature = await keyClient.SignAsync(keyIdentifier, "RS256", digest);
var isVerified = rsa.VerifyHash(digest, "Sha256", signature.Result);
}
}
/// <summary>
/// Decrypts a single block of encrypted data.
/// </summary>
/// <param name="keyBundle">The key to use for decryption</param>
/// <param name="algorithm">The encryption algorithm. For more information on possible algorithm types, see JsonWebKeyEncryptionAlgorithm.</param>
/// <param name="cipherText">The encrypted data</param>
/// <returns></returns>
public static async Task <KeyOperationResult> DecryptDataAsync(this KeyVaultClient client, KeyBundle keyBundle, string algorithm, byte[] cipherText)
{
if (keyBundle == null)
{
throw new ArgumentNullException("keyBundle");
}
return(await client.DecryptDataAsync(keyBundle.Key, algorithm, cipherText).ConfigureAwait(false));
}
static async Task MainAsync(string[] args)
{
var keyClient = new KeyVaultClient((authority, resource, scope) =>
{
var adCredential = new ClientCredential(applicationId, applicationSecret);
var authenticationContext = new AuthenticationContext(authority, null);
return(authenticationContext.AcquireToken(resource, adCredential).AccessToken);
});
// Get the key details
var keyIdentifier = "https://testvaultrahul.vault.azure.net/keys/rahulkey/0f653b06c1d94159bc7090596bbf7784";
var key = await keyClient.GetKeyAsync(keyIdentifier);
var publicKey = Convert.ToBase64String(key.Key.N);
using (var rsa = new RSACryptoServiceProvider())
{
var p = new RSAParameters()
{
Modulus = key.Key.N, Exponent = key.Key.E
};
rsa.ImportParameters(p);
var byteData = Encoding.Unicode.GetBytes(textToEncrypt);
// Encrypt and Decrypt
var encryptedText = rsa.Encrypt(byteData, true);
var decryptedData = await keyClient.DecryptDataAsync(keyIdentifier, "RSA_OAEP", encryptedText);
var decryptedText = Encoding.Unicode.GetString(decryptedData.Result);
// Sign and Verify
var hasher = new SHA256CryptoServiceProvider();
var digest = hasher.ComputeHash(byteData);
var signature = await keyClient.SignAsync(keyIdentifier, "RS256", digest);
var isVerified = rsa.VerifyHash(digest, "Sha256", signature.Result);
}
}
