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It's Time To Pop The Post-Quantum Crypto Bubble

For business leaders and executives to tackle this challenge head-on, we need to rethink the approach and solutions at hand. ....

Forbes Technology Council , National Quantum Strategy , Vice President , Post Quantum Security , Shifting Focus From , Silicon Valley , National Quantum , Technology Council , Kevin Bocek ,

Rambus Inc. (NASDAQ:RMBS) Q4 2023 Earnings Call Transcript

Operator: Welcome to the Rambus Fourth Quarter and Fiscal Year 2023 Earnings Conference Call. At this time all participants in a listen-only mode. ....

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"A lattice-based public key encryption scheme with delegated equality t" by Kaifeng Xiao, Xinjian Chen et al.

When data security is facing growing threats, ordinary encryption techniques cannot meet the needs of comparing, sharing, and classifying data hidden in ciphertexts. At the same time, the advent of the quantum computing era has brought unprecedented challenges to traditional cryptography. Fortunately, a lattice-based PKEET scheme can solve the above problems. In this paper, we design a lattice-based PKE-DET scheme that can support the delegated tester function with satisfying anti-quantum computing security and resisting OMRA attacks. To the best of our knowledge, this is the first PKE-DET scheme that has both kinds of security at the same time. Under the standard model, we prove the security of the scheme based on the LWE hardness assumption. Compared with existing schemes, our scheme has many advantages, such as high security, delegated tester authorization, and small storage space. ....

Equality Test , Learning With Errors , Ffline Message Recovery Attack , Post Quantum Security , Public Key Encryption ,

"Post-quantum secure group signature with verifier local revocation and" by Shuaining Gao, Xinjian Chen et al.

Group signature supports users to generate signatures on behalf of the group. Verifier local revocation (VLR) is an important method to revoke a misbehaving user in group signature, which has attracted many researchers’ attention. However, the existing lattice-based group signature schemes with VLR either achieve only selfless anonymity, have revocation list of size linear with the number of revoked users, or suffer from the issue that signatures generated by revoked users could easily be linked by an adversary. Additionally, the development of quantum computing technology threatens the security of traditional cryptosystems. Therefore, in this paper we propose a new lattice-based group signature scheme, which makes use of the complete tree technique to combine the timestamp with VLR. It enjoys post-quantum security and satisfies almost full anonymity and traceability if the LWE and SIS problems are hard. Compared with previous schemes, our scheme achieves backward unlinkability addit ....

Backward Unlinkability , Group Signature , Post Quantum Security , Erifier Local Revocation ,

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