org.bouncycastle.crypto.ec.ECUtil Maven / Gradle / Ivy
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A GWT cryptography library ported from Legion of the Bouncy Castle.
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package org.bouncycastle.crypto.ec;
import java.math.BigInteger;
import java.security.SecureRandom;
import org.bouncycastle.math.ec.ECConstants;
class ECUtil
{
static BigInteger generateK(BigInteger n, SecureRandom random)
{
int nBitLength = n.bitLength();
BigInteger k;
do
{
k = new BigInteger(nBitLength, random);
}
while (k.equals(ECConstants.ZERO) || (k.compareTo(n) >= 0));
return k;
}
}