public IEnumerable <byte> GetData(IEnumerable <IEnumerable <byte> > blocks, IPaddingStandard lastBlockTransformer)
{
IEnumerable <byte> previousBlock = null;
foreach (var block in blocks)
{
if (previousBlock != null)
{
foreach (var b in previousBlock)
{
yield return(b);
}
}
previousBlock = block;
}
if (previousBlock == null)
{
yield break;
}
foreach (var b in lastBlockTransformer.GetData(previousBlock, blockSize))
{
yield return(b);
}
}
public IEnumerable <IEnumerable <byte> > GetBlocks(IEnumerable <byte> data, IPaddingStandard lastBlockPadding)
{
IEnumerable <byte> previousBlock = null;
var previousBlokcsCount = 0;
foreach (var block in data.Batch(blockSize))
{
if (previousBlock != null)
{
previousBlokcsCount++;
yield return(previousBlock);
}
previousBlock = block;
}
if (previousBlock == null)
{
yield break;
}
foreach (var block in lastBlockPadding.GetAlignedBlocks(previousBlock, blockSize, previousBlokcsCount))
{
yield return(block);
}
}
