Answer protection method and device for network questions

The invention relates to an answer protection method and device for network questions, belongs to the technical field of network security, and solves the problem that answers of existing network questions are cracked due to possible leakage of secret keys. The answer protection method for the network questions comprises the steps: converting the network questions into numerical values of a set ofdigit systems through a server side; calculating the numerical value of the set of digit systems through an agreed algorithm to obtain a first result value; confusing a part of digits of the first result value with a digit system value corresponding to a correct answer to obtain an answer calculation value, the digit system of the network question being consistent with the digit system of the correct answer; and taking the answer calculation value as an answer and transmitting the answer and the network question to a client. By confusing the answers, a person cracking the answers can mistakenly obtain the correct answ