The mystery isn't the word. The mystery is why someone would encrypt that . In the Pentagon and Fortune 500s, acronyms are born, live, and die. "DODIREP" sounds like a relic from a 1997 joint task force: Directorate of Digital Infrastructure & Reporting.
Or, more tantalizingly: "DODIREP" could be the result of a decryption. Feed a famous encrypted text (say, the last line of the Voynich manuscript or the Zodiac’s 340-cipher) through a simple Caesar shift of 3, and you might get gibberish. But shift it by minus 11 , and you get "DODIREP." What does it decode to? A single word: Or ROSWELL. Or your mother’s maiden name. dodirep
But break "dodirep" differently: