https://github.com/synthwaveblues/rsa-signer

RSA Signer with TRNG Key Generator
https://github.com/synthwaveblues/rsa-signer

Last synced: about 1 year ago
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RSA Signer with TRNG Key Generator

• Host: GitHub
• URL: https://github.com/synthwaveblues/rsa-signer
• Owner: synthwaveblues
• Created: 2025-06-03T23:30:16.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-06-04T00:08:10.000Z (about 1 year ago)
• Last Synced: 2025-06-04T07:14:11.852Z (about 1 year ago)
• Language: Python
• Homepage:
• Size: 23.4 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# **RSA Signer with TRNG-based Key Generation**

This project is a command-line Python application that demonstrates secure digital signature workflows powered by a True Random Number Generator (TRNG). The randomness source is based on chaotic logistic maps and image entropy. The tool allows you to:

    - Generate RSA key pairs using TRNG

    - Digitally sign text-based messages

    - Verify digital signatures

    - Test signature integrity using different public keys

## **Requirements**

    Python 3.8 or higher

## **Install dependencies**

    pip install pycryptodome

## **How to Use**

### TRNG Generator Setup

For the TRNG (True Random Number Generator) to work properly, make sure a folder named `images` contains at least one image file (e.g., .png, .jpg).

### **After running the script, a menu will appear:**

**1. Generate Keys**

    Choose option 1.

    The program will generate an RSA key pair and save them as:

        - private_YYYYMMDD_HHMMSS.pem

        - public_YYYYMMDD_HHMMSS.pem

**2. Sign a File**

    - Choose option 2.

    - Enter the path to the file you want to sign (e.g., document.pdf).

    - Select a private key from the list.

    - The program will create a signature file:

        document.pdf.sig

**3. Verify a Signature**

```

- Choose option 3.

- Enter the path to the original file (e.g., document.pdf).

- Enter the path to the signature file (e.g., document.pdf.sig).

- Select a public key from the list.

- The program will display whether the signature is valid or invalid.

```

## Output Example

```

- private_20250604_101530.pem - private RSA key

- public_20250604_101530.pem - public RSA key

- document.pdf.sig - Signed document

```

## Notes

    - Make sure to keep your private key secure.

    - The public key can be shared freely for signature verification.