Skip to main content
Tool Factory

Cryptography & Ciphers

ROR13 Cipher Processor

Apply ROR13 with explicit key, format, and algorithm settings. Enter the data and key material, choose the parameters, then review the result.

Tool workspace

Your input stays in this browser.

Add the required input to continue.

Needs input

You can run the tool again after any change.

Your result appears here

Apply ROR13 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.

ROR13 Cipher Processor uses ROR13 Cipher to process the supplied input. The operation returns transformed text according to its selected alphabet or cipher convention. This record describes cipher processing for ROR13 Cipher Processor.

The operation returns transformed text according to its selected alphabet or cipher convention. This record describes cipher processing for ROR13 Cipher Processor. 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 classical cipher operation transforms text by a known rule; it does not provide modern confidentiality or integrity.

Instructions

  1. Provide text or data for this tool.
  2. Use HELLO as a safe public test value. This applies to ROR13 Cipher Processor.
  3. Record the alphabet and translation settings with the result. This applies to ROR13 Cipher Processor.
  4. Round-trip the output when a paired operation exists. This applies to ROR13 Cipher Processor.

Example

Input: Message "HELLO" with the operation defaults and a public sample key when required. Operation direction: cipher processing; algorithm: ROR13 Cipher Processor.

Settings: ROR13 Cipher Processor: Select the operation's documented alphabet, key, delimiter, or translation option. Use Text input and Text output for the readable fixture. Keep the same settings for the paired direction.

Result: The operation returns transformed text according to its selected alphabet or cipher convention. This record describes cipher processing for ROR13 Cipher Processor. Processing runs in the browser for this catalog category, so the result depends on the supplied bytes and settings.

Limits

  • ROR13 Cipher Processor: Classical substitution and transposition ciphers are not suitable for secret data.
  • ROR13 Cipher Processor: Alphabet, spacing, and case rules can change the result.
  • ROR13 Cipher Processor: A successful round trip does not prove security or message authenticity.

Questions

Is ROR13 the same as ROT13?

No. ROR13 computes a rotate-based hash used in API-name matching. ROT13 substitutes letters and is reversible. Select ROR13 only when the source uses that hashing convention.

Can I reverse a ROR13 result to the original name?

The result does not retain the original input. Several names can share a hash value. Compare candidate names under the same byte and case convention instead of treating the value as encrypted text.

Why does my ROR13 value differ from an API hash?

API-hashing implementations can differ in case conversion, included terminators, and module-name handling. Supply the exact expected bytes rather than only a visually similar name. Match the caller’s convention before comparing results.