رمزنگاری متن
رمزنگاری متن چیست؟
رمزنگاری متن فرآیند تبدیل متن خوانا (متن ساده) به قالب غیرقابل خواندن (متن رمزگذاریشده) برای محافظت از محرمانگی آن است. فقط کسانی که کلید رمزگشایی صحیح را دارند میتوانند پیام اصلی را بخوانند.
Supported Algorithms:
Symmetric Encryption (AES):
- AES-GCM (Recommended): Provides authenticated encryption with associated data (AEAD). Most secure for general use.
- AES-CBC: Traditional block cipher mode. Requires padding.
- AES-CTR: Counter mode. Converts block cipher to stream cipher.
Asymmetric Encryption (RSA):
- RSA-OAEP: Uses public key for encryption. Limited to ~190 characters due to key size constraints. Use for encrypting small data or symmetric keys.
Output Format:
For AES algorithms: JSON with base64-encoded components
{"iv": "base64_encoded_iv", "data": "base64_encoded_ciphertext"}
For RSA: Base64-encoded ciphertext only (no IV needed)
base64_encoded_ciphertext
This format is compatible with most encryption/decryption tools and libraries.
چگونه از ابزار رمزنگاری متن استفاده کنیم
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متنی که میخواهید رمزنگاری کنید را وارد کنید.
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یک رمز عبور ارائه دهید.
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روی "رمزنگاری" کلیک کنید.
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متن رمزشده را کپی کنید و به صورت ایمن ذخیره کنید.
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Copy the encrypted result and keep your secret key safe - you'll need it to decrypt the data later.
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Use the eye icon to show/hide your secret key for security.
Additional Tips:
- For AES: The secret key is auto-generated or you can provide your own (minimum 32 characters)
- For RSA: You need a public key in PEM format. Generate one using the Key Generator tool or OpenSSL
- RSA limitations: Can only encrypt short text (~190 characters). For longer texts, use AES algorithms
- Output encoding: Base64 is used for compatibility with other encryption tools and libraries
Security Notes
This tool uses the browser's native Web Crypto API for strong encryption. AES-GCM provides authenticated encryption with associated data (AEAD), making it the recommended choice for most applications. AES-CBC provides traditional block cipher encryption. Always keep your secret key secure and never share it publicly. The encrypted output includes both the initialization vector (IV) and encrypted data in JSON format.
Important Notes:
- All encryption happens locally in your browser using the Web Crypto API
- The IV (Initialization Vector) is automatically generated for each encryption and must be saved with the ciphertext
- For RSA encryption, you encrypt with a public key; decryption requires the corresponding private key
- Store your secret keys securely - if lost, encrypted data cannot be recovered
- Base64 encoding makes the output portable and compatible with most tools and programming languages
رمزنگاری متن به صورت ایمن با AES-256-GCM مستقیماً در مرورگر. هیچ دادهای به سرورها ارسال نمیشود.
Keywords: رمزنگاری متن، AES-256، رمزنگاری پیام، رمزنگاری امن