Algorithm算法代写代考

R. Mukundan Department of Computer Science and Software Engineering University of Canterbury, . Local Illumination Model Copyright By PowCoder代写 加微信 powcoder  A local illumination model considers only light travelling from a light source to a surface and then reflected off the surface to the eye.  Requires only the light source coordinates, local surface […]

NIST Special Publication 800-207 Zero Trust Architecture Scott publication is available free of charge from: https://doi.org/10.6028/NIST.SP.800-207 COMPUTER SECURITY Copyright By PowCoder代写 加微信 powcoder NIST Special Publication 800-207 Zero Trust Architecture Scott Network Technologies Division Information Technology Laboratory Stu2Labs Stafford, VA Sean & Infrastructure Security Agency Department of Homeland Security This publication is available free of

Cryptography Basics – Key exchange Review Integrity: prevent Mallory from tampering v’ == MACk(m’) k Bob k Bob p := Dk(c) ◦ Message Authentication Code ◦ Hashes -> HMAC ◦ Use: SHA2, SHA3 k m, v:= MAC (m) k m’, v’ Confidentiality: prevent eavesdropper (Eve) from learning the (plaintext) message ◦ Streamciphers ◦ AES-CTR, ChaCha20

Cryptography basics – Integrity: Hashes and MACs ECEN 4133 Jan 19, 2021 Alice and Bob Alice wants to send message m to Bob ◦ Can’t fully trust the messenger or network carrying the message ◦ Want to be sure what Bob receives is actually what Alice sent ✉✉ Alice Mallory Bob Threat model: ◦ Mallory