The major of cryptography science and technology is a major under the engineering and computer disciplines

Cryptozoology is the study of protocols that can transmit information privately. It is a combination of mathematics and computer science. A crossover.

Cryptography is the study of secure communication technology, which must be able to effectively prevent potential attacks.

Its initial function was to protect the security of communications between both parties in an environment where malicious attackers existed. Now it is the core technology used to protect information security.

There are two main applications:

One is encrypted communication. The main task of this direction is to ensure that information will not be tampered with or eavesdropped during the transmission process. This is also a direction that we can easily think of.

The other is digital signature. Digital signatures are similar to paper-and-pencil signatures in the real world and can be used to authenticate the identity of the signer and prevent repudiation.