Search results for “[Subject: security-cryptography-encryption]”

• Author(s): Laurence D. Smith • Publisher: Dover Publications • Publisher Imprint: Dover Publications • BISAC: General"Those who delight in puzzles can find much to ponder here." -- Science News Letter"Will be well received by anyone really inte...

• Author(s): Bud Johnson • Publisher: Dover Publications • Publisher Imprint: Dover Publications • BISAC: GeneralNo, it's not a message from outer space! Just read it backwards, starting from the bottom line, to discover what this specially coded...