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Spongy Castle is a package-rename (org.bouncycastle.* to org.spongycastle.*) of Bouncy Castle
intended for the Android platform. Android unfortunately ships with a stripped-down version of
Bouncy Castle, which prevents easy upgrades - Spongy Castle overcomes this and provides a full,
up-to-date version of the Bouncy Castle cryptographic libs.
package org.spongycastle.bcpg;
public class CRC24
{
private static final int CRC24_INIT = 0x0b704ce;
private static final int CRC24_POLY = 0x1864cfb;
private int crc = CRC24_INIT;
public CRC24()
{
}
public void update(
int b)
{
crc ^= b << 16;
for (int i = 0; i < 8; i++)
{
crc <<= 1;
if ((crc & 0x1000000) != 0)
{
crc ^= CRC24_POLY;
}
}
}
public int getValue()
{
return crc;
}
public void reset()
{
crc = CRC24_INIT;
}
}