What is AES:

  • AES is an Advanced Encryption Standard algorithm. It is a type of symmetric, block cipher encryption and decryption algorithm. It works with key sizes 128, 192, and 256 bits. It uses a valid and similar secret key for both encryption and decryption. In AES, the block cipher is used. It means that the data to be encrypted is converted into blocks for encryption. The original data value is encrypted using different bits of padding such as 128, 192, or 256 bits.

What is AES used for:

  • The Advanced Encryption Standard (AES) is a symmetric block cipher chosen by the U.S. government to protect classified information. AES is implemented in software and hardware throughout the world to encrypt sensitive data. It is essential for government computer security, cybersecurity, and electronic data protection.

Operation of AES Algorithm:

  1. Electronic code book
  2. Cipher blocking chain
  3. Cipher feedback
  4. Output feedback
  5. Counter
  6. Galois/Counter Mode

AES Encryption and Decryption:

Advantages of AES:

  • The encrypted data cannot be decrypted without a valid secret key.
  • AES is the most common security algorithm used worldwide for various purposes like wireless communication, financial transactions, encrypted data storage, etc.
  • The companies who want to transfer their data safely and without breaking it can always use the AES algorithm.
  • Many enterprises can now use it to keep hackers away from scrambling the information.

Disadvantages of AES:

  • Each block is encrypted using a similar kind of encryption.
  • AES can be difficult to implement with the software.