zip-signer

API and app for signing Zip, Apk, and/or Jar files onboard Android devices. Details This project is divided into several sub-projects. * zipio-lib, an alternate API to java.util.zip for reading and writing zip files. This library allows entries to be copied directly from the input to output without de-compressing and re-compressing. It also zip-aligns to 4 byte boundaries by default. * zipsigner-lib - a file signing library with a simple API and built-in default certificate. As Java code it should work anywhere, but its specifically targeted at Android application developers. Licensed under Apache 2.0. * zipsigner-lib-optional - which contains the code required to create a properly formatted CMS/PKCS#7 signature block file from scratch. This JAR is typically required in order to sign with private keys or create self-signed certificates for publishing apps. If you include this file in your project, then you will also need to include the SpongyCastle JARS (sc-l