Cybersecurity architecture
The explanation of the cybersecurity architecture includes the cybersecurity technology system, the cybersecurity management system, and the cybersecurity legal system. The cybersecurity technology system encompasses various security technologies such as encryption technology, authentication technology, and access control technology; the cybersecurity management system includes aspects like security management systems, personnel management, and security audits; the cybersecurity legal system provides legal protection and regulations for cybersecurity.
Encryption technology
Principle: A detailed explanation of the principle of symmetric encryption, which uses the same key for encryption and decryption. Taking the DES (Data Encryption Standard) algorithm as an example, the encryption process is introduced. The plaintext is divided into 64-bit groups and undergoes a series of permutations, substitutions, etc., using a 56-bit key to encrypt the plaintext.
Features: Analysis of the characteristics of symmetric encryption, such as fast encryption speed and suitability for encrypting large amounts of data. However, key management is relatively complex because both communication parties need to share the same key. If the key is leaked, the information will be cracked.