public override void Update(BytesSegment bs)
{
bs.CheckAsParameter();
var pos = (uint)bs.Offset;
var end = pos + (uint)bs.Len;
fixed(Context *ctx = &this.ctx)
fixed(byte *bytes = bs.Bytes)
{
while (pos < end)
{
var remainningKeystream = KeystreamBufferSize - keystreamBufferPos;
if (remainningKeystream == 0)
{
keystreamBufferPos = 0;
remainningKeystream = KeystreamBufferSize;
NextKeystreamBuffer(ctx);
}
var count = end - pos;
count = count < remainningKeystream ? count : remainningKeystream;
NaiveUtils.XorBytesUnsafe(ctx->keyStreamBuffer + keystreamBufferPos, bytes + pos, count);
pos += count;
keystreamBufferPos += count;
}
}
}
public override void Update(BytesSegment bs)
{
bs.CheckAsParameter();
var pos = bs.Offset;
var end = pos + bs.Len;
while (pos < end)
{
var remainningFeed = toBeFeedBack.Length - feedingPos;
if (remainningFeed == 0)
{
feedingPos = 0;
remainningFeed = toBeFeedBack.Length;
EcbTransform.TransformBlock(toBeFeedBack, 0, toBeFeedBack.Length, feedingBack, 0);
}
var feedEnd = pos + remainningFeed;
var thisBlockEnd = (feedEnd < end) ? feedEnd : end;
var count = thisBlockEnd - pos;
if (IsEncrypting)
{
NaiveUtils.XorBytes(feedingBack, feedingPos, bs.Bytes, pos, (uint)count);
NaiveUtils.CopyBytes(bs.Bytes, pos, toBeFeedBack, feedingPos, count);
}
else
{
NaiveUtils.CopyBytes(bs.Bytes, pos, toBeFeedBack, feedingPos, count);
NaiveUtils.XorBytes(feedingBack, feedingPos, bs.Bytes, pos, (uint)count);
}
pos += count;
feedingPos += count;
}
}
public override void Update(BytesSegment bs)
{
bs.CheckAsParameter();
var pos = bs.Offset;
var end = pos + bs.Len;
var keyStreamBuf = this.keyStreamBuf;
fixed(byte *bytes = bs.Bytes)
{
while (pos < end)
{
var remainningKeystream = KeystreamBufferSize - keystreamBufferPos;
if (remainningKeystream == 0)
{
keystreamBufferPos = 0;
remainningKeystream = KeystreamBufferSize;
var ksb = keyStreamBuf;
for (int i = 0; i < KsBlockCount; i++)
{
ksb[i] = counter;
if (++counter.v1 == 0)
{
++counter.v0;
}
Cipher.encrypt_64_128(keys, &ksb[i]);
}
}
var count = end - pos;
count = count < remainningKeystream ? count : remainningKeystream;
NaiveUtils.XorBytesUnsafe((byte *)keyStreamBuf + keystreamBufferPos, bytes + pos, (uint32)count);
pos += count;
keystreamBufferPos += count;
}
}
}
public override void Update(BytesSegment bs)
{
bs.CheckAsParameter();
var pos = (uint)bs.Offset;
var len = (uint)bs.Len;
fixed(byte *bytes = &bs.Bytes[pos])
{
if (EnableMultiThreading && bs.Len >= 32 * 1024 && ThreadCount > 1)
{
UpdateMT(bytes, len, ThreadCount);
}
else
{
Update(bytes, len, keyStreamBuf, ref keystreamBufferPos, ref counter, keys);
}
}
}
