Encrypt / Decrypt 텍스트
「Encrypt / Decrypt 텍스트」는 코드, 데이터 및 QR 작업을 위한 브라우저 도구입니다. 입력과 결과는 일반적으로 이 기기에서 처리되며 가입이 필요하지 않습니다.
사용 방법
사용 방법
- Choose Encrypt or Decrypt and enter the text plus password.
- Run the local AES-GCM operation and review the result.
- Copy the result and keep the password separate from the encrypted text.
Auditable browser cryptography
The page derives a 256-bit AES-GCM key from your password with PBKDF2 using SHA-256 and 150,000 iterations. A fresh 16-byte salt and 12-byte IV are generated for every encryption. The PTX1 output contains only the version marker, salt, IV, and authenticated ciphertext.
Keep the boundaries clear
The password is never included in the encrypted value and cannot be recovered from it. Keep the password separate, and treat the PTX1 text as sensitive because anyone with the encrypted text can attempt offline password guesses.
Local and ephemeral
Text and passwords are processed in this browser tab. The page does not upload, store, or log the input; clearing the form removes the visible values.
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Can I decrypt without the password?
No. AES-GCM authentication rejects the value when the password is missing or incorrect.
What is PTX1?
PTX1 is this tool’s versioned text format: a marker followed by URL-safe Base64 salt, IV, and ciphertext segments separated by periods.
Is this suitable for a password manager or legal archive?
Use a purpose-built audited encryption system for high-value or long-term secrets. This page is a local utility and does not provide key recovery, sharing, or backup.
Does the tool send my text anywhere?
No. Web Crypto performs the operation locally in your browser, and the page has no upload step.