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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Simple Matrix Scheme for Encryption
verfasst von : Chengdong Tao, Adama Diene, Shaohua Tang, Jintai Ding
Erschienen in: Post-Quantum Cryptography
Verlag: Springer Berlin Heidelberg
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There are several attempts to build asymmetric pubic key encryption schemes based on multivariate polynomials of degree two over a finite field. However, most of them are insecure. The common defect in many of them comes from the fact that certain quadratic forms associated with their central maps have low rank, which makes them vulnerable to the MinRank attack. We propose a new simple and efficient multivariate pubic key encryption scheme based on matrix multiplication, which does not have such a low rank property. The new scheme will be called Simple Matrix Scheme or ABC in short. We also propose some parameters for practical and secure implementation.