/Python-Security

Encryption & Cryptography functions implemented in Python

Primary LanguagePythonMIT LicenseMIT

Encryption Methods

✅ Caesar Cipher or ROT13

  • ROT13 aka "Rotate by 13"
  • Why 13? Because of 13 being mid of 26 alphabets and hence easy to encrypt and decrypt. Similarly for ROT5 for 0-9 numeric characters
  • Very simple and easily crackable via frequency analysis

✅ AES Encryption

  • Requirement: Crypto.Cipher module
  • Remark: Key & Message both must be 16, 24 or 32 bit long.

Example: 
Key = '0123456789012345'
Message = 'Dhairya Rockstar'

✅ Hashing

  • Requirement: Hashlib module
  • NOTE: Message to be encrypted should be entered in byte format, example: md5.update(b'Sample Text')
  • Two important functions:
    1. digest() : Encrypt in byte format
    2. hexdigest() : Encrypt in hexadecimal format. More secured than digest()

✅ SHA

  • Different types SHA
  • Increasing complexities -> sha1 < sha256 < sha512

✅ Blocksize & Digestsize

block_size and digest_size functions

✅ Shake Algo.

  • Important to specify .digest(value)

✅ Salting

  • Done so as to avoid brute force crack and done to provide more security

✅ RIPEMD_160

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