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Tool Factory

Cryptography & Ciphers

LS47 Encryption

Apply LS47 Encrypt with explicit key, format, and algorithm settings. Enter the data and key material, choose the parameters, then review the result.

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Apply LS47 Encrypt with explicit key, format, and algorithm settings. Enter the data and key material, choose the parameters, then review the result.

This tool runs open-source code from CyberChef by GCHQ (Apache License 2.0). See open-source credits.

LS47 Encryption uses 7-by-7 grid cipher encryption to process the supplied input. It expands the password into a grid key and encrypts the padded message using LS47.encryptPad.

It expands the password into a grid key and encrypts the padded message using LS47.encryptPad. Processing runs in the browser for this catalog category, so the result depends on the supplied bytes and settings. Processing runs in the browser.

This tool performs the selected algorithm locally; it does not provide application trust or key management.

Instructions

  1. Provide text or data for this tool.
  2. Keep input characters within the supported alphabet. This applies to LS47 Encryption.
  3. Save the password and padding setting separately for a disposable round-trip test. This applies to LS47 Encryption.

Example

Input: Use lowercase "hello", a disposable Password "test", Padding 10, and an empty Signature.

Settings: LS47 Encryption: The grid alphabet contains lowercase letters, digits, underscore, and the documented punctuation. Password, Padding, and Signature are distinct controls.

Result: It expands the password into a grid key and encrypts the padded message using LS47.encryptPad. Processing runs in the browser for this catalog category, so the result depends on the supplied bytes and settings.

Limits

  • LS47 Encryption: Uppercase text and unsupported symbols are not a universal Unicode input format.
  • LS47 Encryption: The Signature field is not a public-key digital signature or proof of identity.

Questions

What LS47 parameters must match?

Match Password and Padding with the source operation. LS47 has its own text alphabet and transformation convention. A generic block-cipher mode or IV setting does not apply here.

What does the LS47 Signature field mean?

The encrypt operation accepts a Signature value as part of its LS47 text workflow. That field is not a public-key digital-signature verification control. Do not infer a verified signer identity from its presence.

Why can LS47 reject or alter my text?

LS47 works with its defined character alphabet and padding convention. Test a supported short sample before using arbitrary Unicode text. A readable result alone does not prove the password or message source.