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This is the coolest way I have seen someone write their email and avoid email harvesting bots: For inquiries related to this book, use x@joyofcryptography.com, where x is the author's first name. - Nearly everyone with a high school education can “crack” that puzzle and figure out his email and yet most bots will fail.
> All the sensible textbook titles were already taken. Actual joy not guaranteed. Like a lot of people (I imagine) I made it through a CS bachelors program not really ‘getting’ the discrete math combinatorics part. Crypto is an area where those concepts really really matter. It’s great to see this resource available!
Related question: when using Block Cipher Mode, how does Alice and Bob exchange the IV?
Related question: when using Block Cipher Mode, how does Alice and Bob exchange the IV?
Someone please correct me if I'm wrong.
[1] https://github.com/signalapp/libsignal-protocol-java/blob/ma...
[2] https://signal.org/docs/specifications/doubleratchet/Set0_1....
This is the coolest way I have seen someone write their email and avoid email harvesting bots: For inquiries related to this book, use x@joyofcryptography.com, where x is the author's first name. - Nearly everyone with a high school education can “crack” that puzzle and figure out his email and yet most bots will fail.
i always thought the hotness would be to encrypt the address in source text and render/decrypt it client side in javascript, but i suppose scrapers these days use full blown headless browsers complete with javascript runtimes.
> All the sensible textbook titles were already taken. Actual joy not guaranteed. Like a lot of people (I imagine) I made it through a CS bachelors program not really ‘getting’ the discrete math combinatorics part. Crypto is an area where those concepts really really matter. It’s great to see this resource available!
Somehow discrete math was the only math I understood in CS. Calculus, on the other hand, completely eluded me.
This is the coolest way I have seen someone write their email and avoid email harvesting bots: For inquiries related to this book, use x@joyofcryptography.com, where x is the author's first name. - Nearly everyone with a high school education can “crack” that puzzle and figure out his email and yet most bots will fail.
RFC 5321 requires compliant domains to have both a "postmaster" and an "abuse" email address (e.g. postmaster@joyofcryptography.com). This technique will not stop a flood of spam emails to x@joyofcryptography.com, which will end up in the postmaster inbox.
Mail to the literal 'x@joyofcryptography.com' address would just be dropped. There's no expectation that mail to a nonexistent address would be placed in the postmaster mailbox.
