About QuRAC
The Quantum-Resilient Applied Cryptography (QuRAC) Research Group operates within the School of Data Science at the Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), under the leadership of Dr. Laltu Sardar, starting from 2026. We design, analyze, and deploy cryptographic protocols that withstand quantum adversaries. Our work covers theoretical foundations, including post-quantum cryptographic constructions, and extends to rigorous engineering of systems for real-world cloud infrastructures.
We emphasize both provable security and applied security. Our research tackles searchable encryption, privacy-preserving computation, secure cloud computing, and encrypted graph analytics. We combine strong theoretical guarantees with practical prototype implementations. We deliver short-term applied results and pursue long-term fundamental advances, while maintaining open-source implementations for the broader cryptographic research community.
Research Highlights
Post-Quantum Cryptography
Lattice-based, code-based, and hash-based primitives addressing NIST PQC standardization and beyond.
Learn more →Applied Cryptography
Searchable encryption, privacy-preserving computation, and encrypted data analytics.
Learn more →Secure Cloud Computing
Secure outsourced computation, verifiable queries, and privacy-preserving cloud services.
Learn more →Consensus & Blockchain Security
Post-quantum blockchain, Ethereum Layer-2 security, VDFs, and distributed consensus protocols.
Learn more →Quantum Cryptography
Quantum key distribution, quantum-secure protocols, and security in quantum adversary models.
Learn more →Latest News
- Paper "Efficient and Post-Quantum Conjunctive Dynamic SSE with Strong Privacy Guarantees" accepted at PKC 2026.
- Invited talk on "Mitigating Randao Manipulation: Is VDF the Missing Link?" at Crypto Winter School 2025, IIT Bhilai.
- Talk on "From Classical to Quantum Cryptography: The Next Leap in Secure Communication" at Tathva'25, NIT Calicut.
- Member of Program Committee , 1st Workshop on Decentralized Immutable Secure Tamper-Resistant Encrypted Searchable Storage, (DISTRESS 2026).
- PhD positions open in Applied Cryptography, Blockchain & Layer-2 Technologies. Candidates with CSIR/UGC NET or INSPIRE fellowships may apply directly.
- Dr. Laltu Sardar served as Co-organiser of the AI for Science Pre-Summit Event (IndiaAI Mission), IISER TVM, 2025.
Sometimes it is the people no one can imagine anything of who do the things no one can imagine.