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

package com.google.crypto.tink;

import java.security.GeneralSecurityException;
import com.google.crypto.tink.internal.OutputPrefixUtil;
import com.google.crypto.tink.proto.Keyset;

public final class CryptoFormat
{
    public static final int NON_RAW_PREFIX_SIZE = 5;
    public static final int LEGACY_PREFIX_SIZE = 5;
    public static final byte LEGACY_START_BYTE = 0;
    public static final int TINK_PREFIX_SIZE = 5;
    public static final byte TINK_START_BYTE = 1;
    public static final int RAW_PREFIX_SIZE = 0;
    public static final byte[] RAW_PREFIX;
    
    public static byte[] getOutputPrefix(final Keyset.Key key) throws GeneralSecurityException {
        switch (key.getOutputPrefixType()) {
            case LEGACY:
            case CRUNCHY: {
                return OutputPrefixUtil.getLegacyOutputPrefix(key.getKeyId()).toByteArray();
            }
            case TINK: {
                return OutputPrefixUtil.getTinkOutputPrefix(key.getKeyId()).toByteArray();
            }
            case RAW: {
                return CryptoFormat.RAW_PREFIX;
            }
            default: {
                throw new GeneralSecurityException("unknown output prefix type");
            }
        }
    }
    
    private CryptoFormat() {
    }
    
    static {
        RAW_PREFIX = new byte[0];
    }
}