Comparison of Digital Ciphertext Text Based on Prior Information

The manual notification training of ciphertext requires error statistics and analysis of the reasons for the errors, in order to help trainees improve their training level. The comparison of encrypted digital text differs from typical text comparison. The comparison of ciphertext digital text requires determining correctness on an information by information basis, while also considering the tolerance of certain parameters. Based on prior information, this article first preprocesses the digital ciphertext by breaking sentences, then uses LD algorithm for text comparison within sentences, and finally performs correctness judgment and error analysis on a word by word basis, which can effectively and correctly obtain the comparison results of the digital ciphertext.