What is a .P8 file?
P8 is a PKCS#8 private key, used by Apple developer services among others.
- Did you know
- PKCS#8 is a standard wrapper for storing a private key of any algorithm.
- Apple’s push-notification P8 keys hold an elliptic-curve key in a PKCS#8 wrapper, stored without a password.
- Apps use a P8 key to sign the JSON Web Tokens that authenticate them to Apple Push Notification service.
- What Analyser reads
- Inspect security and crypto files: PEM private/public keys (RSA/EC/Ed25519, PKCS#1 vs PKCS#8, encryption), OpenSSH .pub with SHA-256 fingerprint, PuTTY .ppk, PKCS#10 CSR, X.509 CRL, PKCS#7 bundles, OpenVPN/WireGuard configs, Java KeyStores, Apple .mobileconfig/.mobileprovision, Windows .reg (with autorun flagging), and pcap/pcapng captures - warning when a private key or secret is present.
- Depth of analysis
- .P8 is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .P8 file
- Drag a .P8 file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.