Lecture 11: E-Mail Security
Date
: October 21, 2013
Homework due
: Nov. 1 at 5:00pm
Web identity
Cryptographic Key Infrastructure
Certificates (X.509, PGP)
State and cookies
E-mail
Structure of a letter: header fields, body, attachments
How mail moves through the Internet: UAs, MTAs
Mail addresses: MX records
E-mail and encryption
Basic idea
Interchange keys
Data encryption key
Doing the encryption
Building the letter
Decrypting the letter and verifying the signature
Mail relays
Cypherpunk type 1 remailers
Cypherpunk type 2 (mixmaster) remailers
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Version of October 20, 2013 at 3:31PM