Cybersecurity Fundamentals and Encryption Techniques
Explore the basics of cybersecurity and encryption methodologies through lecture notes by Rodrigo Foncesa, Scott Shenker, and Mike Freedman. Topics include eavesdropping, perpetrators, masquerading, plaintext encryption, and more.
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Presentation Transcript
Based on lecture notes by Rodrigo Foncesa, Scott Shenker and Mike Freedman
FaceBook index If(in cache) Get from cache Else Get from FB server Cache FaceBook icon Your Code
Plaintext Plaintext Internet Encrypt with secret key Decrypt with secret key Ciphertext
Plaintext Plaintext Internet Encrypt with public key Decrypt with private key Ciphertext
Plaintext Plaintext Internet Decrypt with public key Encrypt with private key Ciphertext
corrupted msg Plaintext Plaintext NO = digest Internet Digest (MD5) Digest (MD5) digest
Browser Amazon HTTPS
HTTPS Browser Amazon K K
