org.bouncycastle.pqc.crypto.qtesla.IntSlicer Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcprov-ext-jdk15on Show documentation

The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8. Note: this package includes the NTRU encryption algorithms.

There is a newer version: 1.70

Show newest version

package org.bouncycastle.pqc.crypto.qtesla;

/**
 * Simulates pointer arithmetic.
 * A utility for porting C to Java where C code makes heavy use of pointer arithmetic.
 *
 * @Deprecated Remove when Post-Quantum Standardization project has finished and standard is published.
 */
final class IntSlicer
{
    private final int[] values;
    private int base;

    IntSlicer(int[] values, int base)
    {
        this.values = values;
        this.base = base;
    }

    final int at(int index)
    {
        return values[base + index];
    }

    final int at(int index, int value)
    {
        return values[base + index] = value;
    }


    final int at(int index, long value)
    {
        return values[base + index] = (int)value;
    }

    final IntSlicer from(int o)
    {
        return new IntSlicer(values, base + o);
    }

    final void incBase(int paramM)
    {
        base += paramM;

    }

    final IntSlicer copy()
    {
        return new IntSlicer(values, base);
    }

}