public override byte[] UnwrapKey(string encryptionKeyId, KeyEncryptionKeyAlgorithm algorithm, byte[] encryptedKey)
{
// since we do not expose GetOrCreateDataEncryptionKey we first look up the cache.
// Cache miss results in call to UnWrapCore which updates the cache after UnwrapKeyAsync is called.
return(this.GetOrCreateDataEncryptionKey(encryptedKey.ToHexString(), UnWrapKeyCore));
// delegate that is called by GetOrCreateDataEncryptionKey, which unwraps the key and updates the cache in case of cache miss.
byte[] UnWrapKeyCore()
{
return(this.keyEncryptionKeyResolver
.Resolve(encryptionKeyId)
.UnwrapKey(EncryptionKeyStoreProviderImpl.GetNameForKeyEncryptionKeyAlgorithm(algorithm), encryptedKey));
}
}
public override byte[] WrapKey(string encryptionKeyId, KeyEncryptionKeyAlgorithm algorithm, byte[] key)
{
return(this.keyEncryptionKeyResolver
.Resolve(encryptionKeyId)
.WrapKey(EncryptionKeyStoreProviderImpl.GetNameForKeyEncryptionKeyAlgorithm(algorithm), key));
}