Advanced Encryption Standard is a block encryption standard. AES has the advantages of simple design, fast key installation, less memory space, good performance on all platforms, parallel processing support and resistance to all known attacks, and is widely used all over the world. AES is an iterative cipher with symmetric key packets, which can use 128, 192, and 256-bit keys, and encrypt and decrypt data with 128-bit packets. A perfect encryption algorithm is theoretically indecipherable unless an exhaustive method is used. At present, there are organizations in the world studying how to break the thick wall of AES. However, due to the long cracking time, AES encryption technology cannot be cracked at present. AES encryption algorithm has been widely used in financial, military, government, and other fields, so as to strictly guard against data security. The Raysync file acceleration transmission software fully responds to the call of national data transmission compliance and is based on SSL encryption transmission protocol and financial grade AES-256 encryption transmission technology to ensure data security. To provide users with a high-speed, safe, and convenient file transfer acceleration platform.