So that's where Alice & Bob came from?
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No. I don't know which date this article was released, but according to Wikipedia, the RSA developers coined Alice and Bob in 1978:
The first mention of Alice and Bob in the context of cryptography was in Rivest, Shamir, and Adleman's 1978 article "A method for obtaining digital signatures and public-key cryptosystems." They wrote, "For our scenarios we suppose that A and B (also known as Alice and Bob) are two users of a public-key cryptosystem". Previous to this article, cryptographers typically referred to message senders and receivers as A and B, or other simple symbols. In fact, in the two previous articles by Rivest, Shamir, and Adleman, introducing the RSA cryptosystem, there is no mention of Alice and Bob. Possibly the choice of the first three names came from the film Bob & Carol & Ted & Alice.
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