TY - GEN

T1 - A signcryption scheme based on integer factorization

AU - Steinfeld, Ron

AU - Zheng, Yuliang

PY - 2000

Y1 - 2000

N2 - Signcryption is a public-key cryptographic primitive introduced by Zheng, which achieves both message confidentiality and non-repudiatable origin authenticity, at a lower computational and communication overhead cost than the conventional `sign-then-encrypt' approach. We propose a new signcryption scheme which gives a partial solution to an open problem posed by Zheng, namely to find a signcryption scheme based on the integer factorization problem. In particular, we prove that our scheme is existentially unforgeable, in the random oracle model, subject to the assumption that factoring an RSA modulus N = pq (with p and q prime) is hard even when given the additional pair (g; S), where is an asymmetric basis of large order less than a bound.

AB - Signcryption is a public-key cryptographic primitive introduced by Zheng, which achieves both message confidentiality and non-repudiatable origin authenticity, at a lower computational and communication overhead cost than the conventional `sign-then-encrypt' approach. We propose a new signcryption scheme which gives a partial solution to an open problem posed by Zheng, namely to find a signcryption scheme based on the integer factorization problem. In particular, we prove that our scheme is existentially unforgeable, in the random oracle model, subject to the assumption that factoring an RSA modulus N = pq (with p and q prime) is hard even when given the additional pair (g; S), where is an asymmetric basis of large order less than a bound.

UR - http://www.scopus.com/inward/record.url?scp=84944242785&partnerID=8YFLogxK

M3 - Conference proceeding contribution

SN - 3540414169

SN - 9783540414162

VL - 1975

T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

SP - 308

EP - 322

BT - Information Security - 3rd International Workshop, ISW 2000, Proceedings

PB - Springer, Springer Nature

CY - Berlin; Heidelberg

ER -