namespace Azure.Storage.Cryptography { internal interface IClientSideEncryptor { long ExpectedOutputContentLength(long plaintextLength); Task<(Stream Ciphertext, EncryptionData EncryptionData)> EncryptInternal(Stream plaintext, bool async, CancellationToken cancellationToken); Task<(byte[] Ciphertext, EncryptionData EncryptionData)> BufferedEncryptInternal(Stream plaintext, bool async, CancellationToken cancellationToken); Task<Stream> EncryptedOpenWriteInternal(Func<EncryptionData, bool, CancellationToken, Task<Stream>> openWriteInternal, bool async, CancellationToken cancellationToken); } }