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Post-quantum Key Exchange - A New Hope
TLDR
New parameters and a better suited error distribution are proposed, the scheme's hardness against attacks by quantum computers is analyzed in a conservative way, a new and more efficient error-reconciliation mechanism is introduced, and a defense against backdoors and all-for-the-price-of-one attacks is proposed.
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High-speed high-security signatures
This paper shows that a $390 mass-market quad-core 2.4GHz Intel Westmere (Xeon E5620) CPU can create 109000 signatures per second and verify 71000 signatures per second on an elliptic curve at a 2128…
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CRYSTALS - Kyber: A CCA-Secure Module-Lattice-Based KEM
TLDR
This paper introduces Kyber, a portfolio of post-quantum cryptographic primitives built around a key-encapsulation mechanism (KEM), based on hardness assumptions over module lattices, and introduces a CPA-secure public-key encryption scheme and eventually construct, in a black-box manner, CCA-secure encryption, key exchange, and authenticated-key-exchange schemes.
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SPHINCS: Practical Stateless Hash-Based Signatures
TLDR
A high-security post-quantum stateless hash-based signature scheme that signs hundreds of messages per second on a modern 4-core 3.5GHz Intel CPU, allowing it to be a drop-in replacement for current signature schemes.
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Faster and Timing-Attack Resistant AES-GCM
TLDR
A bitsliced implementation of AES encryption in counter mode for 64-bit Intel processors, up to 25% faster than previous implementations, while simultaneously offering protection against timing attacks, and is the only cache-timing-attack resistant implementation offering competitive speeds for stream as well as for packet encryption.
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CRYSTALS-Dilithium: A Lattice-Based Digital Signature Scheme
In this paper, we present the lattice-based signature scheme Dilithium, which is a component of the CRYSTALS (Cryptographic Suite for Algebraic Lattices) suite that was submitted to NIST’s call for…
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CRYSTALS-Kyber Algorithm Specifications And Supporting Documentation
NewHope without reconciliation
TLDR
NewHope-Simple, a variant of the NewHope RingLWE-based key exchange that is using a straight-forward transformation from Ring-LWE encryption to a passively secure KEM (or key-exchange scheme), is introduced.
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High-speed key encapsulation from NTRU
TLDR
This paper presents software demonstrating that the 20-year-old NTRU cryptos system is competitive with more recent lattice-based cryptosystems in terms of speed, key size, and ciphertext size and is, to the best of the authors' knowledge, the first N TRU software with full protection against timing attacks.
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The Security Impact of a New Cryptographic Library
This paper introduces a new cryptographic library, NaCl, and explains how the design and implementation of the library avoid various types of cryptographic disasters suffered by previous…
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