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outline.yml
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/
outline.yml
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greetings
who I am
what I do
math nerdery
as little math as possible
caveats
rules of crypto
no security through obscurity
security in the key, not the algorithm
sidechannels - why it's hard
cryptographers are people - heartbleed
what is crypto
purposes of crypto
confidentiality
authenticity
integrity
non-repudiation
history
scytale
caesar cipher
vigenere cipher
modular arithmetic
one-time pads
polyalphabetic ciphers - turing & enigma
modern methods
hashing
hard to find a message that generates a given hash
hard to find two messages that generate the same hash - birthday paradox
hard to change a message without changing the hash
attacks and salting
symmetric ciphers
XOR - example
PRNGs - example
stream ciphers - example
block ciphers - example
modes
ECB
CBC
CTR
asymmetric ciphers
merkel puzzles
diffie-hellman
RSA