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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.
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package org.bouncycastle.pqc.crypto.mlkem;
import org.bouncycastle.crypto.EncapsulatedSecretExtractor;
public class MLKEMExtractor
implements EncapsulatedSecretExtractor
{
private final MLKEMPrivateKeyParameters privateKey;
private final MLKEMEngine engine;
public MLKEMExtractor(MLKEMPrivateKeyParameters privateKey)
{
if (privateKey == null)
{
throw new NullPointerException("'privateKey' cannot be null");
}
this.privateKey = privateKey;
this.engine = privateKey.getParameters().getEngine();
}
public byte[] extractSecret(byte[] encapsulation)
{
return engine.kemDecrypt(privateKey.getEncoded(), encapsulation);
}
public int getEncapsulationLength()
{
return engine.getCryptoCipherTextBytes();
}
}
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