Offline RSA Key Generator & Message Cryptor – 4096-bit WebCrypto Workstation
Military-Grade OpenPGP Cryptography in Browser Sandboxes
Pretty Good Privacy (PGP) remains the gold standard for asymmetric email and document encryption. By leveraging Web Crypto API hardware acceleration, this workstation synthesizes 2048-bit and 4096-bit RSA keys and performs hybrid AES-256 envelope encryption entirely client-side.
Zero-Knowledge Privacy Architecture
Private keys never travel across networks. You can disconnect your internet connection or use this tool inside an air-gapped environment to sign, encrypt, and decrypt confidential engineering records.
Frequently asked questions
Are keys generated by this tool truly cryptographically secure?
Yes. Keys are synthesized via window.crypto.subtle and hardware CSPRNG, matching the security parameters of GnuPG.
Can third-party servers intercept my private keys?
No. The entire encryption and decryption process executes purely in volatile RAM inside your local browser tab.
Store your PGP master keys, FIDO2 credentials, and crypto seeds on physical tamper-resistant hardware.