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- Shuqin Fan, Wenbao Han
- Applicable Algebra in Engineering, Communication…
- 2003

Let F q be a finite field of characteristic two. We prove that for any given element a F q , there exists a primitive polynomial of degree n over F q with the m-th (0<m<n) coefficient Σ m =a when n≥7, n is odd.

- Guang Zeng, Wenbao Han, Kaicheng He
- 2007

We introduce a new kind of word-oriented linear feedback shift register called σ−LFSR which is constructed with the instructions of the modern processor and have fast software implementation. We offer an algorithm to search for good primitive σ−LFSR. In particular, we give two examples HHZ-1 and HHZ-2 and compare their efficiency and security with those of… (More)

- Gang Yu, Xiaoxiao Ma, Yong Shen, Wenbao Han
- Theor. Comput. Sci.
- 2010

According to actual needs, generalized signcryption scheme can flexibly work as an encryption scheme, a signature scheme or a signcryption scheme. In this paper, firstly, we give a security model for identity based generalized signcryption which is more complete than existing model. Secondly, we propose an identity based generalized signcryption scheme.… (More)

- Guangsong Li, Wenbao Han
- ICN
- 2005

- Huifang Ji, Wenbao Han, Long Zhao
- IACR Cryptology ePrint Archive
- 2010

Generalized Signcryption is a fresh cryptographic primitive that not only can obtain encryption and signature in a single operation, but also provives encryption or signature alone when needed. This paper gives a formal definition of certificateless generalized signcryption and its security model is present. A concrete certificateless generalized… (More)

In this paper, we investigate the Hansen-Mullen conjecture with the help of some formal series similar to the Artin-Hasse exponential series over p-adic number fields and the estimates of character sums over Galois rings. Given n we prove, for large enough q, the Hansen-Mullen conjecture that there exists a primitive polynomial f(x) = xn − a1xn−1 + · · ·+… (More)

- Huifang Ji, Wenbao Han, Long Zhao, Yongjuan Wang
- 2009 WASE International Conference on Information…
- 2009

Currently, ID-based PKC has attracted much attention and got manyachievements. Proxy signature allows an original signer to delegatehis private key to a proxy signer to sign some message on behalf ofthe original signer. We present a ID-based proxy signature in thispaper. The scheme is relatively efficient as there is no pairingcomputation during the… (More)

- Shuqin Fan, Wenbao Han
- Finite Fields and Their Applications
- 2004

- Shuaiting Qiao, Wenbao Han, Yifa Li, Luyao Jiao
- I. J. Network Security
- 2016

Based on the ideas: “invertible cycle”, “tame transformation” and “special oil and vinegar”, three different nonlinear invertible transformations were constructed separately. Then making use of the idea of the extended multivariate public key cryptosystem, and combining the nonlinear invertible transformations above with Matsumoto-Imai (MI) scheme, three… (More)

- Xue Zhang, Guangsong Li, Wenbao Han
- Wireless Personal Communications
- 2015