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Chethan Kumar
As a young democracy grows out of adolescence, its rolling out reels and reels of tales. If the first post office or a telephone connection paints one colour, the Stamp of a s LESS
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Shafi Goldwasser is among the world’s top scientists and one of the only three women to have won the Turing Award. She has made fundamental contributions to cryptography and computational complexity and co-invented zero-knowledge proofs which are a key tool in the design of cryptographic protocols. During her visit to Bengaluru for the Infosys Science Prize awards last week, Goldwasser – who is also Director of the Simons Institute for the Theory of Computing and the C Lester Hogan Professor in Electrical Engineering and Computer Sciences, University of California, Berkeley – spoke with Chethan Kumar on cryptography, cyber security, quantum computers and more.
Can you underline some key technologies resulting from innovations in cryptography?
The first, probably the most famous one, is public-key cryptography which enables identifying yourself using digital signatures or identification mechanisms over the internet without actually meeting people in advance, plus sending secret messages between people who’ve never met. So that’s public encryption and digital signatures. The second technology is zero-knowledge proof, which is a way to prove essentially that the theoretical mathematical claims are correct without actually revealing the proof. In terms of applications, there is proving your identity without revealing information that will enable someone to posture as you in the future. Or, in the context of blockchain, proving that a particular smart contract has been executed correctly.
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Views expressed above are the author’s own.
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