use frequency analysis造句

The program should use frequency analysis to decode the text ( ie without any clues from the user ).
Once he had the proper pairings, he could then use frequency analysis to figure out the actual plaintext letters.
By itself, using a constant repeating key, a simple XOR cipher can trivially be broken using frequency analysis.
Breaking a message without using frequency analysis essentially required knowledge of the cipher used and perhaps of the key involved, thus making espionage, bribery, burglary, defection, etc ., more attractive approaches to the cryptanalytically uninformed.
In classical cryptography, one of the earliest encryption methods was the simple substitution cipher, where letters in a message were systematically replaced using some secret scheme . " Monoalphabetic " substitution ciphers used only a single replacement scheme & mdash; sometimes termed an " alphabet "; this could be easily broken, for example, by using frequency analysis.
It's difficult to find use frequency analysis in a sentence. 用use frequency analysis造句挺难的

Eve could use frequency analysis to help solve the message along the following lines : counts of the letters in the cryptogram show that I is the most common single letter, XL most common bigram, and XLI is the most common trigram . e is the most common letter in the English language, th is the most common bigram, and the the most common trigram.
By mixing material from Bioacoustics with extreme fringe material about using frequency analysis of the voice to diagnose disease and playing back sounds to treat the diseases found, and throwing in some fringe self-published internet " journals ", alongside respectable journals on the completely unrelated mainstream science, this article attempts to put the science of Bioacoustics, and the extreme fringe alternative medicine treatment it sets out to promote on the same footing.