com.googlecode.d2j.signapk.TinySignImpl Maven / Gradle / Ivy

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package com.googlecode.d2j.signapk;

import java.io.IOException;
import java.io.OutputStream;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.PKCS8EncodedKeySpec;

/**
 * get from
 * https://code.google.com/p/tiny-sign/source/browse/src/main/java/pxb/android
 * /tinysign/TinySign.java
 * 
 * @author bob
 * 
 */
public final class TinySignImpl extends AbstractJarSign {

    private static PrivateKey buildPrivateKey() {

        PrivateKey privateKey;
        try {
            privateKey = KeyFactory.getInstance("RSA").generatePrivate(
                    new PKCS8EncodedKeySpec(Base64.decode(sPrivateKey,0)));
        } catch (InvalidKeySpecException | NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }
        return privateKey;
    }

    public TinySignImpl() {
        super(buildPrivateKey(), "SHA1", "SHA1withRSA");
    }

    private static final String sPrivateKey = "MIIBVgIBADANBgkqhkiG9w0BAQEFAASCAUAwggE8AgEAAkEAoiZSqWnFDHA5sXKoDiUUO9JuL7cm/2dCck5MKumVvv+WfSg0jsovnywsFN0pifmdRSLmOdUkh0d0J+tOnSgtsQIDAQABAkEAihag5u3Qhds9BsViIUmqhZebhr8vUuqZR8cuTo1GnbSoOHIPbAgD3J8TDbC/CVqae8NrgwLp325Pem1Tuof/0QIhAN1hqft1K307bsljgw3iYKopGVZBHRXsjRnNL4edV9QrAiEAu4F+XtS1wohGLz5QtfuMFsQNo4l31mCjt6WpBDmSi5MCIQCB++YijxmJ3mueM5+vd0vqnVcTHghF5y6yB5fwuKHpIQIgInnS1Hjj2prX3MPmby+LOHxfzZvvDtnCAHhTNVWonkUCIQCvV8l+SpL6Vh1nQ/2EKFJo2dbZB3wKG/BEYsFkPFbn9w==";
    private static final String sSigPrefix = "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";


    @Override
    protected void writeSignatureBlock(byte[] signature, OutputStream out) throws IOException {
        out.write(Base64.decode(sSigPrefix, 0));
        out.write(signature);
    }

}