Key management method, key encryption method, data encryption method and related equipment

Abstract

The embodiment of the invention provides a key management method, a key encryption method, a data encryption method and related equipment, and the key management method is applied to a built-in cryptographic module of a processor, and comprises the steps: receiving a key management request used for requesting to manage a target key, and the key management request comprises key management demand information; the target key is at least used for encrypting an application key, and the application key is a key key for the virtual private network to realize data security transmission; generating a target key ciphertext corresponding to the target key by using the root key; storing the target key ciphertext and the target key identification information in a special memory; the storage content of the special memory is managed by the password module, and when the storage content is used, the storage content is loaded into the secure memory; and returning index information used for indexing the target key ciphertext and the storage position of the target key authentication information. According to the technical scheme provided by the embodiment of the invention, the security of the execution result of the encryption and decryption program can be improved.