Michael Novakhov retweeted:
Here’s a letter David Kahn, then president of the New York Cipher Society, wrote to the NSA. The New York cipher guys were getting feisty!
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Michael Novakhov retweeted: Here’s a letter David Kahn, then president of the New York Cipher Society, wrote to the NSA. The New York cipher guys were getting feisty!
Michael Novakhov retweeted:
Here’s a letter David Kahn, then president of the New York Cipher Society, wrote to the NSA. The New York cipher guys were getting feisty!