Best use
Use it for a focused DES Migration Checklist task when a quick browser workbench is appropriate.
DES Migration Checklist
A reference-only checklist for inventorying DES dependencies and recording the parameters needed to migrate historical ciphertext.
- Use DES only to reproduce or inspect legacy formats.
- DES Migration Checklist: Paste non-sensitive sample data first; do not paste secrets, tokens, customer data, or production keys.
- DES Migration Checklist: For new security-sensitive work, use a reviewed modern cryptographic design outside this compatibility helper.
Inventory before migration
DES execution is disabled. Before moving historical data, identify where DES is used and record every parameter that affects decryption.
- Mode: ECB, CBC, CFB, OFB, or another implementation-specific choice.
- IV source and length, padding rule, ciphertext encoding, and character encoding.
- Key bytes or key derivation procedure, including truncation and parity behavior.
- A non-sensitive known-answer fixture with expected plaintext.
Migration sequence
Keep the old decryptor isolated, decrypt a controlled batch, validate the plaintext, then re-encrypt with a reviewed authenticated scheme such as AES-GCM. Do not create new DES ciphertext during the transition.
Usage boundaries and result checks
DES Migration Checklist is for this task: Record the old DES mode, IV, padding, encoding, and test vectors; runtime execution is disabled. It runs in the browser; start with a short, non-sensitive sample and confirm the behavior before processing more data.
Input
text, an encoded string, or the data format named by the tool
Output
an encoded, decoded, or compatibility-check result
Before reuse
For DES Migration Checklist: Confirm the character set, byte boundary, and target protocol. Encoding is not encryption. See the test method.