public void CreateKey()
{
// Removes key if it already exists, no change otherwise
DeleteKey();
// Generate AES key
var keyGenerator = KeyGenerator.GetInstance("AES");
keyGenerator.Init(KEY_SIZE);
var secretKey = keyGenerator.GenerateKey();
// Push into the secureStorage
_storageHelper.StoreItem <byte[]>(_keyAlias, secretKey.GetEncoded());
}
//public CertificateEncrypter(string certificateAlias)
//{
// var certificate = _storageHelper.GetItem<byte[]>(certificateAlias);
// var stream = new System.IO.MemoryStream(certificate, 0, certificate.Length);
// _cert = CertificateFactory.GetInstance("X509").GenerateCertificate(stream);
//}
public CertificateEncrypter(string certificateAlias, byte[] serializedCertificate)
{
_storageHelper.StoreItem <byte[]>(certificateAlias, serializedCertificate);
var stream = new System.IO.MemoryStream(serializedCertificate, 0, serializedCertificate.Length);
var certificate = CertificateFactory.GetInstance("X509").GenerateCertificate(stream);
_cert = certificate;
}
public void CreateKey(string password, string userEmail)
{
// Remove key to overwrite, otherwise nothing
DeleteKey();
// Make password based key with many iterations, a salt, and user-related value (email?)
var spec = new PBEKeySpec((password + userEmail).ToCharArray(), SALT, ITERATIONS, KEY_SIZE);
var keyGenerator = SecretKeyFactory.GetInstance("PBEWithHmacSHA256AndAES_256");
var key = keyGenerator.GenerateSecret(spec);
_storageHelper.StoreItem <byte[]>(_keyAlias, key.GetEncoded());
}