RSA Deniable Encryption

This project create a RSA cryptosystem with deniability. Three scripts was created:

• Generates RSA key pair
• Encrypt/Decrypt a message
• Find a new secret key that can decrypt a given message from a given cipher generated using a given secret key

Example:

m1 = message 1
m2 = message 2
c = cipher
pk = public key
sk1 = secret key 1
sk2 = secret key 2
E() = encryption algorithm
D() = decryption algorithm
NSK() = new secret key algorithm

c = E(m1, pk)
m1 = D(c, sk1)
sk2 = NSK(c, sk1, m2)
m2 = D(c, sk2)

Contents

• 1   Quickstart
• 2   How to use
• 3   Dependencies
• 4   Contact
• 5   ReadTheDocs

1   Quickstart

make init to install all Python dependencies

make build to build the project

(or just use make to install all Python dependencies and build the project)

2   How to use

deniablekeys [-p KEY_PATH] to generate a RSA key pair in PEM format, saving in publickey.pem and secretkey.pem.

deniablersa [-e | -d] key_path to encrypt -e or decrypt -d a given stdin input. To encrypt use a public key and to decrypt use a secret key.

deniablecollision cipher_path message_path secretkey_path to get a collision secret key of given message, using a given cipher and secret key.

3   Dependencies

python3 use the official website to download python3

python3-pip use the official website or the command:apt-get install python3-pip

4   Contact

To contact the author, create a issue or see the setup.py file.

5   ReadTheDocs

Coming soon...