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CS555 (Hot Topics (Quantum Resistant Crypto (Lattice Based Cryptography…
CS555
Hot Topics
Quantum Resistant Crypto
All Public Key Encryptions are unsafe
Most of the Private key encryptions are secure
Hashed Based Signatures
Lamport Signatures and extensions
Lattice Based Cryptography (Public Crypto)
Ring-LWE
NTRU (Potential replacement of RSA)
Exchange a symmetric key! Then just AES.
HE
Homomorphic Encryption (FHE)
HELib (C++)
Always have
boot-straping
and Lattice
Partially HE Schemes
Mealiability
Partially HE schemes cannot be CCA-Secure.
Palliar and RSA
Program Obfuscation (Theoretical Cryptography)
A program with
nonce
that can only be run once by recording such nonce on blockchain and with Program Obfuscation.
Running the program and "learn nothing else"
Indistinguishability Obfuscation
SGX (Secure Hardware Module)
can be viewed as a way to accomplish this in practice
Must trust third party (e.g., Intel)