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Shaded BouncyCastle for Gatling Recorder
package io.gatling.recorder.internal.bouncycastle.jcajce.provider.asymmetric.gost;
import java.math.BigInteger;
import io.gatling.recorder.internal.bouncycastle.crypto.params.GOST3410Parameters;
import io.gatling.recorder.internal.bouncycastle.util.Arrays;
import io.gatling.recorder.internal.bouncycastle.util.Fingerprint;
import io.gatling.recorder.internal.bouncycastle.util.Strings;
class GOSTUtil
{
static String privateKeyToString(String algorithm, BigInteger x, GOST3410Parameters gostParams)
{
StringBuffer buf = new StringBuffer();
String nl = Strings.lineSeparator();
BigInteger y = gostParams.getA().modPow(x, gostParams.getP());
buf.append(algorithm);
buf.append(" Private Key [").append(generateKeyFingerprint(y, gostParams)).append("]").append(nl);
buf.append(" Y: ").append(y.toString(16)).append(nl);
return buf.toString();
}
static String publicKeyToString(String algorithm, BigInteger y, GOST3410Parameters gostParams)
{
StringBuffer buf = new StringBuffer();
String nl = Strings.lineSeparator();
buf.append(algorithm);
buf.append(" Public Key [").append(generateKeyFingerprint(y, gostParams)).append("]").append(nl);
buf.append(" Y: ").append(y.toString(16)).append(nl);
return buf.toString();
}
private static String generateKeyFingerprint(BigInteger y, GOST3410Parameters dhParams)
{
return new Fingerprint(
Arrays.concatenate(
y.toByteArray(),
dhParams.getP().toByteArray(), dhParams.getA().toByteArray())).toString();
}
}