Meituan Technology Team

Jan 13, 2017 · Mobile Development

Fast Channel Package Generation for Android APK Signature Scheme v2

By exploiting the unprotected portion of Android’s APK Signature Scheme v2 signing block, the article introduces a fast, secure channel‑package generation technique—implemented in the open‑source Walle tool—that embeds custom IDs without re‑signing, enabling thousands of channels to be added in milliseconds per APK.