Expert Profile View

Specialisation:

Hardware Security, Design Automation, Cryptographic Engineering, Cryptography, VLSI

Major Professional Contributions:

Side Channel-Fault Attacks: 

• Exposed the record single fault attack on the word-wide standard cipher called AES.
• Developed the first fault template attack on crypto-systems.

Micro-architectural Attacks: 

• Demonstrated that branch-predictor based attacks to leak secret-keys from protected crypto-libraries. 
• Developed the first cache-timing attack on ciphers with small S-Boxes. 

Encrypted Computation: 

• Designed the first secured searchable encryption scheme for conjunctive queries using a novel idea of symmetric-key Hidden-Vector-Encryption.
• Designed the first forward and backward private searchable encryption schemes for conjunctive queries. 

Physically Unclonable Functions (PUFs): 

• Developed novel architectures for PUFs, a promising hardware security primitive, to resist powerful machine learning attacks.
• Designed the first PUF based authentication protocol without needing to store explicitly the challenge-response of PUFs. 

These works are being commercialized by several industrial collaborators.                   

Indigenous Cryptographic Implementations: 

• Developed indigenous ciphering algorithms with efficient implementations for various Indian laboratories and strategic applications.

The nominee has developed a state-of-the-art laboratory called Secured-Embedded-Architecture-Lab (SEAL) which is nationally and internationally recognized by domain experts. The students graduated with PhD from the lab are in key positions, in research and academia, in top positions, like Intel-Labs, IITs, BOSCH, etc. 

Consultancy Areas:

• Hardware Security
• Side Channel Analysis
• VLSI of Cryptosystems
• Post-quantum crypto
• Automotive and CPS Security
• Hardware Forensics
• Encrypted Computations
• Fully Homomorphic Encryption

Sector Associated With:

• Govt Labs, like DRDO, ISRO, HAL
• Industry, like Intel, Qualcom, BOSCH, WIPRO, NTT-Labs (Japan)
• DIT, DST

Sectors Interested to Offer Service:

• Defence and Telecommunications
• Automotive
• Healthcare

Professional Experience

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