public ThreefishEngine(int blocksizeBits)
{
//IL_00b8: Unknown result type (might be due to invalid IL or missing references)
blocksizeBytes = blocksizeBits / 8;
blocksizeWords = blocksizeBytes / 8;
currentBlock = new ulong[blocksizeWords];
kw = new ulong[2 * blocksizeWords + 1];
switch (blocksizeBits)
{
case 256:
cipher = new Threefish256Cipher(kw, t);
break;
case 512:
cipher = new Threefish512Cipher(kw, t);
break;
case 1024:
cipher = new Threefish1024Cipher(kw, t);
break;
default:
throw new ArgumentException("Invalid blocksize - Threefish is defined with block size of 256, 512, or 1024 bits");
}
}
/// <summary>
/// Constructs a new Threefish cipher, with a specified block size.
/// </summary>
/// <param name="blocksizeBits">the block size in bits, one of <see cref="BLOCKSIZE_256"/>, <see cref="BLOCKSIZE_512"/>,
/// <see cref="BLOCKSIZE_1024"/> .</param>
public ThreefishEngine(int blocksizeBits)
{
this.blocksizeBytes = (blocksizeBits / 8);
this.blocksizeWords = (this.blocksizeBytes / 8);
this.currentBlock = new ulong[blocksizeWords];
/*
* Provide room for original key words, extended key word and repeat of key words for modulo
* free lookup of key schedule words.
*/
this.kw = new ulong[2 * blocksizeWords + 1];
switch (blocksizeBits)
{
case BLOCKSIZE_256:
cipher = new Threefish256Cipher(kw, t);
break;
case BLOCKSIZE_512:
cipher = new Threefish512Cipher(kw, t);
break;
case BLOCKSIZE_1024:
cipher = new Threefish1024Cipher(kw, t);
break;
default:
throw new ArgumentException(
"Invalid blocksize - Threefish is defined with block size of 256, 512, or 1024 bits");
}
}
