TheCodeBreakers
his remarks that they so promptly replaced their existing keys.
Meanwhile, Philip had learned, from his own interceptions of French
letters, that Viete had broken a cipher that the Spanish—who apparently
knew little about cryptanaly-sis—had thought unbreakable. It irritated
him, and thinking that he would cause trouble for the French at no cost
to himself, told the pope that Henry could have read his ciphers only by
black magic. But the tactic boomeranged. The pope, cognizant of the
ability of his own cryptologist, Giovanni Batista Argenti, and perhaps
even aware that papal cryptanalysts had themselves solved one of
Philip's ciphers 30 years before, did nothing about the Spaniard's
complaint; all Philip got for his effort was the ridicule and derision of
everyone who heard about it.
At about the same time, England's first great cryptanalyst helped to
execute a sentence of death on that most romantic and tragic of royal