Package com.itextpdf.text.pdf.qrcode
Class GF256
- java.lang.Object
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- com.itextpdf.text.pdf.qrcode.GF256
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public final class GF256 extends java.lang.Object
This class contains utility methods for performing mathematical operations over the Galois Field GF(256). Operations use a given primitive polynomial in calculations.
Throughout this package, elements of GF(256) are represented as an
int
for convenience and speed (but at the cost of memory). Only the bottom 8 bits are really used.- Since:
- 5.0.2
- Author:
- Sean Owen
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-
Field Summary
Fields Modifier and Type Field Description static GF256
DATA_MATRIX_FIELD
static GF256
QR_CODE_FIELD
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