/// <summary>
/// Encrypts and encodes the private key.
/// </summary>
/// <param name="key">The private key.</param>
/// <param name="passPhrase">The pass phrase to encrypt the private key.</param>
/// <returns>The encrypted private key.</returns>
public static string ToEncryptedPrivateKeyString(AsymmetricKeyParameter key, string passPhrase)
{
var salt = new byte[16];
var secureRandom = SecureRandom.GetInstance("SHA256PRNG");
secureRandom.SetSeed(SecureRandom.GetSeed(16)); //See Bug #135
secureRandom.NextBytes(salt);
return(Convert.ToBase64String(PrivateKeyFactory.EncryptKey(keyEncryptionAlgorithm, passPhrase.ToCharArray(), salt, 10, key)));
}
public virtual byte[] Encrypt(string password, byte[] salt, int iterationCount, byte[] content)
{
AsymmetricKeyParameter asymmetricKey = PrivateKeyFactory.CreateKey(content);
byte[] encryptedContent = PrivateKeyFactory.EncryptKey(BCObjectIdentifiers.bc_pbe_sha256_pkcs12_aes256_cbc, password.ToCharArray(), salt, iterationCount, asymmetricKey);
var encryptedKeyPrimitives = (DerSequence)Asn1Object.FromByteArray(encryptedContent);
var derPrimitives = new[]
{
new DerSequence(new DerObjectIdentifier(BCObjectIdentifiers.bc_pbe_sha256_pkcs12_aes256_cbc.Id),
((DerSequence)encryptedKeyPrimitives[0])[1]),
encryptedKeyPrimitives[1]
};
var keySequence = new DerSequence(derPrimitives);
return(keySequence.GetDerEncoded());
}
public virtual byte[] Encrypt(string password, byte[] salt, int iterationCount, byte[] content)
{
AsymmetricKeyParameter asymmetricKey = PrivateKeyFactory.CreateKey(content);
return(PrivateKeyFactory.EncryptKey(PkcsObjectIdentifiers.PbeWithShaAnd3KeyTripleDesCbc, password.ToCharArray(), salt, iterationCount, asymmetricKey));
}