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DC23 Tamper-Evident Contest

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  • #16
    Inside the box:
    1. plastic deposit bag - contained physical tamper locks. I am told one puzzle was to move the locks to the upper row in such a way that their values combined with the operators on the top row would come out to a specific value.
    2. 8.5 x 11 - Manila envelope sealed with tamper tape. Inside the envelope there were two sealed "security" envelopes( Think what you would use to mail a letter or check). One contained what I assume was a crypto puzzle, I wasn't able to solve it. The other envelope contained a piece of paper with a picture printed on it you had to change the face on. This envelope also had metallic flashing tape on the inside that trapped moisture as you tried to steam it open.
    3. A "security" envelope with a note inside wrapped in carbon paper (just plain evil) easy to mess up and leave carbon marks.