Rohit Khera

About Rohit Khera

I’m an engineer with a background in applied cryptography, protocols and software engineering. I started my career in numerical physics at a semiconductor CAD firm. I’ve worked with secure hardware, lattice/module lattice cryptography and fully homomorphic encryption. Worked extensively in the semiconductor industry on cryptologic and physics codes. Worked at 2 large cloud computing firms in the platform space. Worked on implementing Fully Homomorphic Encryption schemes (BGV, CKKS, encoding/decoding for approximate arithmetic, LPR encryption, Number Theoretic Transforms, rescaling/re-linearization of tensored ciphertexts, key switching, ciphered permutations with Galois Groups). Worked on Module-Lattice based algorithms (ML-KEM, ML-DSA). Worked on Multi-Party Computation Protocols and Threshold Cryptography (threshold ECDSA / Gennaro Goldfeder, 3 Party Yao / Lindell). Worked on layer 1 consensus protocols and cryptologic bits for Byzantine Agreements w/ honest majority (threshold cryptography/MPC, random beacons, VRFs). Worked with Succinct Zero Knowledge (libSNARK, R1CS, Quadratic Arithmetic Programs). Cloud HSM design and architecture. Cryptography standards & review work with the IETF and NIST.CORE COMPETENCIESCryptography and Protocols: Fully Homomorphic Encryption (BGV, CKKS) • Lattice / Module-Lattice Cryptography (Ring-LWE, ML-KEM, ML-DSA) • Number Theoretic Transforms (NTT) • Finite Field Arithmetic • Elliptic Curve Cryptography • Zero Knowledge Proofs (libSNARK, R1CS, QAP) • Multi-Party Computation (MPC) • Threshold Cryptography (threshold ECDSA, threshold BLS) • FIPS 140-3Secure Hardware: Cloud HSMs • NXP A7 Secure Elements • Infineon SLE • Renesas SCE • STM32 • Silicon Labs EFR32 • ARM Cortex-M • Secure Boot / Secure Firmware Update • Root of Trust (RoT)Languages & Tools: C/C++ • SageMath • NTL (Number Theory Library) • HElib • Mathematica • JavaDomains: Post-Quantum Cryptography • Privacy-Enhancing Technologies (PETs) • Cloud Security Infrastructure • Embedded Security • Numerical Physics SimulationPUBLICATIONS & INVITED TALKS• Open Compute Project (2025) — “Privacy for AI from NP-Hard IIT (2025) — 3-part seminar series to CS faculty: “Lattices and Fully Homomorphic Talk: “Fully Homomorphic Encryption”: https://youtu.be/fN5-aFV0v5g• IETF/CFRG Draft: “Post-Quantum Key Exchange from Learning With Errors Over

Experience

1. Applied Cryptography and Protocol Engineer

   Ringcipher

   Apr 2021 — Present · San Francisco, CA, US

   https://RingCipher.com - Lattice Cryptography / Multi-Party Computation / Threshold Cryptography / Crypto Consulting.Keep.network - Verified impl. of distributed key generation (DKG) method for a threshold cryptography discrete log based signing scheme (BLS). Audited Binance impl. of {t,n}-threshold ECDSA based on Gennaro and Goldfeder 2018, including zero knowledge range proofs.Taxa.network - Designed consensus method for nodes on a network to agree on a hash value using threshold BLS as a VRF (Verifiably Random Function). Basic succinct zero knowledge in libSnark.Consulting on projects focused on applications of ideal lattice cryptography and learning with errors over rings (RLWE). Built fully homomorphic encryption (FHE) prototypes with HElib. FHE BGV variant (Brakerski, Gentry, Vaikuntanathan) Axon - Secure Boot / Secure Firmware Update (SB/SFU) and Root of Trust functions (RoT) on STM32 and Silicon Labs EFR32 SoCs. Crypto Services with STM32 CryptoLib + mbedTLS

Education

• Harvard University

  No Degree Granted, Grad Classes in Computer Science

• Boston University

  BS, Physics

Skills

• Cryptography
• Java
• Computer Security
• Embedded Systems
• Architecture
• Algorithms
• Architectures
• Cryptographic Hardware
• Wireless
• Linux
• Unix
• Tcp/Ip
• Ssl
• Network Security
• Operating Systems
• Security
• Tls
• Public Key Cryptography
• Software Engineering
• Networking
• Secure Elements
• Security Protocols
• Ipsec
• C++
• Software Development
• Python
• Distributed Systems
• C
• Programming
• Network Programming
• Smart Cards
• Integration
• Cloud Computing