/// <inheritdoc/>
public virtual async Task <byte[]> EncryptSecretAsync(byte[] plaintextBytes, string encryptionKeyId, Dictionary <string, string> encryptionContext)
=> (await KmsClient.EncryptAsync(new EncryptRequest {
KeyId = encryptionKeyId,
Plaintext = new MemoryStream(plaintextBytes),
EncryptionContext = encryptionContext
})).CiphertextBlob.ToArray();