Cryptolib

Description:

This python library gathers all the cryptographic attacks that I present on my website vozec.fr Most of the scripts are taken from my articles, so it is advisable to read them to better understand how they work!

Installation:

git clone https://github.com/Vozec/Cryptolib.git
cd Cryptolib
nano first_test.py
... enjoy !

Examples / test

You can retrieve test for all attacks in the examples folder.
The file test.py runs all tests in this folder.

Documentation:

RSA:

• Create a RSA-Object with secure parameters

  sys = rsa_init()

• Create a RSA-Object with custom parameters

  sys = rsa_init(
    e=65537,
    n=...
  )

• Show info on known variables

  sys.info()

  output:

  --- Status ---
    E: known
    P: unknown
    Q: unknown
    N: known
    D: unknown
  PHI: unknown
  --------------

• Encrypt Message: (e,n) have to be set

  c = sys.encrypt(b'Hello Vozec')

• Decrypt Message: (e,n,d) have to be set

  m = sys.decrypt(c)

• Remove a value:

  sys.pop('p')

• Add a value:

  sys.add('n',7617...7187)

• Get Public Key (.pub)

  sys.public_key()

• Get Private Key (.pem)

  sys.private_key()

Attacks

• FactorDb Factorization

  sys.factordb()
  m = sys.decrypt(c)

• Fermat Factorization

  sys.fermat()
  m = sys.decrypt(c)

• Wiener Factorization

  sys.wiener()
  m = sys.decrypt(c)

• Common Prime Factorization

  sys.common_prime()
  m = sys.decrypt(c)

• Small m decoder

  m = sys.small_m()

• Common Modulus decoder

  m = sys.common_modulus()

• Hastad Broadcast attack

  m = sys.hastad()

• MultiPrimes decoder

  primes = [..,..,..]
  sys.multi_primes()
  m = sys.decrypt(c)

• Franklin Reiter attack

  sys.add('c',c1)
    sys.add('c',c2)
    m2 = sys.franklin_reiter(a=a,b=b)
  #m2 = a*m1+b