Asymmetric encryption

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Asymmetric encryption attempts to solve a problem with symmetric encryption — both parties must know the same key. With asymmetric encryption, each party derives a public key and a private key. The public key is freely distributed. The private key is kept secret.

Slides from class

Code files for today:

diffie_helman.c
rsa.c
rsa_key_gen.py
rsa_encrypt.py
rsa_decrypt.py
rsa_sign.py
rsa_verify.py

Note: all code examples are based heavily on (or copied exactly from) code originally developed by SEED Labs.