RSA algorithm is a public key cryptosystem, which was proposed by Ronald Rivest, adi shamir and Leonard Aderman in 1978. It has a history of more than 40 years and is widely used in digital signature, encryption and decryption. Its security is based on the mathematical problem of large prime number decomposition, and it is considered as one of the safest public key algorithms at present. Besides RSA, there are many other classical cryptographic algorithms, such as des, AES and RC4.

Advantages of RSA algorithm

1, RSA algorithm is an international standard algorithm, which belongs to one of the mainstream algorithms and will be more popular. If you need to know the specific theory in this field, RSA algorithm is the algorithm you must learn. Because it will be more extensive in the process of application, and it is not easy to be limited by other problems.

2.RSA algorithm has wide compatibility and can be applied to various systems. Compared with some new algorithms today, the compatibility of RSA algorithm makes it more convenient in the process of real use without various restrictions.

3, widely used, encryption key and decryption key are different, the general encryption key is called private key. The decryption key is called the public key. After the private key is encrypted, it can only be decrypted with the public key. Of course, it can also be encrypted with public key and decrypted with private key.