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A NON-REPUDIABLE BIASED BITSTRING COMMITMENT SCHEME ON A POST QUANTUM CRYPTOSYSTEM USING NON-ABELIAN GROUP

D.B.Ojha, Abhishek Dwivedi and Akhilesh Dwivedi

Commitment schemes are fundamental bricks for guaranteeing fairness in upper level cryptographic protocols. Most commitment schemes in the literature rely on hash functions, which should be strongly collision free for the scheme to be secure. We present a commitment scheme, which avoids hash functions by using a public-key cryptosystem based on braid root problem instead.