ICipher.cs

using System;

namespace Aleph1.Security.Contracts
{
	/// <summary>A common interface for Encryption / Decryption of data</summary>
	public interface ICipher
	{
		/// <summary>Encrypts the specified data for a specific user in a specific application.</summary>
		/// <typeparam name="T">Any</typeparam>
		/// <param name="appPrefix">The application prefix.</param>
		/// <param name="userUniqueID">The user unique identifier.</param>
		/// <param name="data">The data to encrypt</param>
		/// <param name="timeSpan">the duration of the ticket generated</param>
		/// <returns>the encrypted data</returns>
		string Encrypt<T>(string appPrefix, string userUniqueID, T data, TimeSpan? timeSpan = null);


		/// <summary>Decrypts the specified data for a specific user in a specific application.</summary>
		/// <typeparam name="T">Any</typeparam>
		/// <param name="appPrefix">The application prefix.</param>
		/// <param name="userUniqueID">The user unique identifier.</param>
		/// <param name="encryptedData">The encrypted data.</param>
		/// <returns>the decrypted data</returns>
		T Decrypt<T>(string appPrefix, string userUniqueID, string encryptedData);
	}
}