// 
// Decompiled by Procyon v0.6.0
// 

package org.bouncycastle.jcajce.spec;

import org.bouncycastle.util.Arrays;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
import java.security.PublicKey;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import java.security.spec.AlgorithmParameterSpec;

public class KEMGenerateSpec extends KEMKDFSpec implements AlgorithmParameterSpec
{
    private static final byte[] EMPTY_OTHER_INFO;
    private static AlgorithmIdentifier DefKdf;
    private final PublicKey publicKey;
    
    private KEMGenerateSpec(final PublicKey publicKey, final String s, final int n, final AlgorithmIdentifier algorithmIdentifier, final byte[] array) {
        super(algorithmIdentifier, array, s, n);
        this.publicKey = publicKey;
    }
    
    public KEMGenerateSpec(final PublicKey publicKey, final String s) {
        this(publicKey, s, 256, KEMGenerateSpec.DefKdf, KEMGenerateSpec.EMPTY_OTHER_INFO);
    }
    
    public KEMGenerateSpec(final PublicKey publicKey, final String s, final int n) {
        this(publicKey, s, n, KEMGenerateSpec.DefKdf, KEMGenerateSpec.EMPTY_OTHER_INFO);
    }
    
    public PublicKey getPublicKey() {
        return this.publicKey;
    }
    
    static {
        EMPTY_OTHER_INFO = new byte[0];
        KEMGenerateSpec.DefKdf = new AlgorithmIdentifier(X9ObjectIdentifiers.id_kdf_kdf3, new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256));
    }
    
    public static final class Builder
    {
        private final PublicKey publicKey;
        private final String algorithmName;
        private final int keySizeInBits;
        private AlgorithmIdentifier kdfAlgorithm;
        private byte[] otherInfo;
        
        public Builder(final PublicKey publicKey, final String algorithmName, final int keySizeInBits) {
            this.publicKey = publicKey;
            this.algorithmName = algorithmName;
            this.keySizeInBits = keySizeInBits;
            this.kdfAlgorithm = new AlgorithmIdentifier(X9ObjectIdentifiers.id_kdf_kdf3, new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256));
            this.otherInfo = KEMGenerateSpec.EMPTY_OTHER_INFO;
        }
        
        public Builder withNoKdf() {
            this.kdfAlgorithm = null;
            return this;
        }
        
        public Builder withKdfAlgorithm(final AlgorithmIdentifier kdfAlgorithm) {
            this.kdfAlgorithm = kdfAlgorithm;
            return this;
        }
        
        public Builder withOtherInfo(final byte[] array) {
            this.otherInfo = ((array == null) ? KEMGenerateSpec.EMPTY_OTHER_INFO : Arrays.clone(array));
            return this;
        }
        
        public KEMGenerateSpec build() {
            return new KEMGenerateSpec(this.publicKey, this.algorithmName, this.keySizeInBits, this.kdfAlgorithm, this.otherInfo, null);
        }
    }
}