Diffie Whitfield : Breaking teleprinter ciphers at Bletchley Park : general report on Tunny with emphasis on statistical methods (1945) / an edition of I.J. Good, D. Michie and G. Timms ; edited and with introductions and notes by James A. Reeds, Whitfield Diffie and J.V. Field.
Diffie Whitfield 1944 : Privacy on the line : the politics of wiretapping and encryption / Whitfield Diffie, Susan Landau.
Digby Everard Sir 1518 1606 : The Gunpowder-treason : with a discourse of the manner of its discovery, and a perfect relation of the proceedings against those horrid conspirators, wherein is contained their examinations, tryals, and condemnations : likewise King James's speech to both houses of Parliament on that occasion, now reprinted : a preface touching that horrid conspiracy, by the Right Reverend Father in God, Thomas, Lord Bishop of Lincoln : and by the way of appendix, several papers or letters of Sir Everard Digby, chiefly relating to the gunpowder-plot, never before printed.
Digby Francis : Kyrou paideia, or, The institution and life of Cyrus the Great / written by that famous philosopher and general, Xenophon of Athens, and from the original Greek made English, the first four books by Francis Digby ..., the four last by John Norris.
Digby John : Miracles not ceas'd : to His Grace George Duke of Buckingham &c., of his miraculous cure and of the rest of all the most wonderfull and glorious miracles and cures wrought by a Roman Catholick priest in and about the cities of London and Westminister, in the moneths of Iune and Iuly 1663, in confirmation of the holy Roman Catholick faith / by A.S.
Digby John Sir 1605 1645 : Sir John Digby's letter to Colonel Kerr Governour of Plymouth, : perswading him to betray his trust, and deliver up the town and forts of Plymouth, to the Kings party. Together with Col. Kerrs answer. Wherein is exprest his faithfull resolution in keeping the trust he hath undertaken.