Symmetric ciphers

All parties use the same key, for both decrypting and encrypting data, typically very fast and can process very large amount of data.

AES(Advanced Encryption Standard)

AES is included in the ISO/IEC 18033-3 standard. AES became effective as a U.S. federal government standard on May 26, 2002, after approval by the U.S. Secretary of Commerce. AES is available in many different encryption packages, and is the first (and only) publicly accessible cipher approved by the U.S. National Security Agency (NSA) for top secret information when used in an NSA approved cryptographic module.