DES Encrypt / Decrypt Online
DES加密DES解密CBCECB
Pure client-side DES per FIPS 46-3 with CBC/ECB modes and PKCS7 padding, 8-char keys, Base64 output, for legacy system compatibility, fully local.
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How to Use
- Enter plaintext and key, choose mode and padding
- Click Encrypt or Decrypt to execute
- Copy the result and keep your key safe
- All encoding/decoding runs locally; sensitive content never leaves your device
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FAQ
Is DES safe for production?
DES has an effective 56-bit key and has been brute-forced; use only for legacy compatibility, choose AES for new systems.
CBC vs ECB?
CBC chains blocks so identical plaintexts yield different ciphertexts; ECB processes blocks independently and leaks patterns.
Will my data be uploaded?
No, all operations run locally in your browser.