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59 lines
2.3 KiB
C#

namespace Renci.SshNet.Security.Cryptography.Ciphers
{
/// <summary>
/// Base class for cipher padding implementations
/// </summary>
public abstract class CipherPadding
{
/// <summary>
/// Pads the specified input to match the block size.
/// </summary>
/// <param name="blockSize">Size of the block.</param>
/// <param name="input">The input.</param>
/// <returns>
/// Padded data array.
/// </returns>
public byte[] Pad(int blockSize, byte[] input)
{
return Pad(blockSize, input, 0, input.Length);
}
/// <summary>
/// Pads the specified input to match the block size.
/// </summary>
/// <param name="blockSize">Size of the block.</param>
/// <param name="input">The input.</param>
/// <param name="offset">The zero-based offset in <paramref name="input"/> at which the data to pad starts.</param>
/// <param name="length">The number of bytes in <paramref name="input"/> to take into account.</param>
/// <returns>
/// The padded data array.
/// </returns>
public abstract byte[] Pad(int blockSize, byte[] input, int offset, int length);
/// <summary>
/// Pads the specified input with a given number of bytes.
/// </summary>
/// <param name="input">The input.</param>
/// <param name="paddinglength">The number of bytes to pad the input with.</param>
/// <returns>
/// The padded data array.
/// </returns>
public byte[] Pad(byte[] input, int paddinglength)
{
return Pad(input, 0, input.Length, paddinglength);
}
/// <summary>
/// Pads the specified input with a given number of bytes.
/// </summary>
/// <param name="input">The input.</param>
/// <param name="offset">The zero-based offset in <paramref name="input"/> at which the data to pad starts.</param>
/// <param name="length">The number of bytes in <paramref name="input"/> to take into account.</param>
/// <param name="paddinglength">The number of bytes to pad the input with.</param>
/// <returns>
/// The padded data array.
/// </returns>
public abstract byte[] Pad(byte[] input, int offset, int length, int paddinglength);
}
}