Minichan

Topic: Have you ever used a modified handshake?

Anonymous A started this discussion 11 years ago #40,794

Someone once showed me one where you rest the thumb on the webbing between their thumb and index finger.

Someone else once shook with a weird knuckle thing going on, I wondered if they might be in a secret society.

Do you know any modified handshakes? Do you yourself ever deviate from a standard right-handed grip? If so, why?

Anonymous B joined in and replied with this 11 years ago, 10 minutes later[^] [v] #543,130

@OP
Not sure.

Green joined in and replied with this 11 years ago, 50 seconds later, 11 minutes after the original post[^] [v] #543,131

It's been a long time since I've shaken hands, but I am extremely opposed to it. If the man hasn't washed his hands after using the loo, you are essentially shaking his penis too.

Anonymous D joined in and replied with this 11 years ago, 48 seconds later, 11 minutes after the original post[^] [v] #543,132

I always press down *hard* on the webbing between thumb and index finger.

Anonymous E joined in and replied with this 11 years ago, 50 minutes later, 1 hour after the original post[^] [v] #543,137

This thread is so much less hacker-y than I had hoped for coming in.

Anonymous D replied with this 11 years ago, 9 minutes later, 1 hour after the original post[^] [v] #543,139

@previous (E)
One time i intercepted the handshake between a game and its server and changed it to set the communicated encryption key to 0, which was later used to xor the bytes. Setting the key to zero caused the xorring to have no effect and made further reversing easier (and not having to write a stream decoder for the manual reversing).

Fun fact, the author of the original encryption algorithm had (likely) made a mistake, since the input to xor the first byte of each packet was the encryption key, however every subsequent byte used the unencrypted previous byte, which was the packet type byte which could be guessed easily. As such, the encryption had no real effect whatsoever. Any passive observer could decrypt every single packet without having needed to capture the handshake. Besides, passive observers could still observe the handshake and use that to de/re-encrypt the rest of the stream, which is what i wound up doing when writing my proxy.

(Edited 44 seconds later.)

Anonymous E replied with this 11 years ago, 42 minutes later, 1 hour after the original post[^] [v] #543,145

@previous (D)
Thank you I feel better now.

@543,132 (D)
Sup Postmortem?
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