By Team Hypomnema · Privacy & security
Lock a private message in an authenticated password-encrypted envelope.
Use the guide alongside the working tool.
Open Private Text Encryption →Worked example
The same message encrypted twice produces different ciphertext because each operation uses a new salt and nonce.Lock a private message in an authenticated password-encrypted envelope.
Prepare your input
Enter a message or paste an encrypted envelope.
Choose Encrypt or Decrypt and provide the password.
Review and export
Copy or download the result separately from the password.
The same message encrypted twice produces different ciphertext because each operation uses a new salt and nonce.
Scope and privacy
Uses the same versioned AES-256-GCM envelope as File Encryption. Up to 100,000 text characters. Never share the password beside the envelope.
Inputs are processed in this browser. Nothing is uploaded by this tool. Save an export or draft before closing the tab if you need to retain your work.
Ready to apply this workflow?
Try Private Text Encryption →Explore a related workflow
- File Encryption: a practical guide
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- Text Hash Generator: a practical guide
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- Checksum Manifest Verifier: workflow, verification and limits
Match multiple local files against a SHA-256 checksum manifest.
Keep your original files and review the result. Found unclear instructions? Contact Team Hypomnema.