ProtectedKey ProtectKey(byte[] decryptedKey, DataProtectionScope protectionScope)
{
ProtectedKey key = ProtectedKey.CreateFromPlaintextKey(decryptedKey, protectionScope);
CryptographyUtility.ZeroOutBytes(decryptedKey);
return(key);
}
ProtectedKey GenerateKey(KeyedHashAlgorithm algorithm, DataProtectionScope dataProtectionScope)
{
using (algorithm)
{
return(ProtectedKey.CreateFromPlaintextKey(algorithm.Key, dataProtectionScope));
}
}
ProtectedKey GenerateKey(SymmetricAlgorithm algorithm, DataProtectionScope dataProtectionScope)
{
ProtectedKey key;
byte[] plaintextKey = this.GenerateUnprotectedKey(algorithm);
try
{
key = ProtectedKey.CreateFromPlaintextKey(plaintextKey, dataProtectionScope);
}
finally
{
if (plaintextKey != null)
{
CryptographyUtility.ZeroOutBytes(plaintextKey);
}
}
return(key);
}
