Most of the public key algorithms used in the exchange of information for power data transmission protocols are RSA. The core of the key part of this kind of algorithm system has not been announced. For the domestic s...Most of the public key algorithms used in the exchange of information for power data transmission protocols are RSA. The core of the key part of this kind of algorithm system has not been announced. For the domestic sensitive information data field, there are threats such as preset backdoors and security vulnerabilities. In response to the above problems, the article introduces a secure communication protocol based on the optimized Secret SM2 algorithm, which uses socket programming to achieve two-way encrypted communication between clients and services, and is able to complete the security protection of data encryption transmission, authentication, data tampering, etc., and proves through experiments that the security protocol is more secure than traditional methods, can effectively identify each other, carry out stable and controllable data encryption transmission, and has good applicability.展开更多
We introduce in this paper cryptographic protocols which use combinatorial group theory. Based on a combinatorial distribution of shares we present secret sharing schemes and cryptosystems using Nielsen transformation...We introduce in this paper cryptographic protocols which use combinatorial group theory. Based on a combinatorial distribution of shares we present secret sharing schemes and cryptosystems using Nielsen transformations. Nielsen transformations are a linear technique to study free groups and general infinite groups. In addition the group of all automorphisms of a free group F, denoted by AUT (F), is generated by a regular Nielsen transformation between two basis of F, and each regular Nielsen transformation between two basis of F defines an automorphism of F.展开更多
By using Pedersen's verifiable secret sharing scheme and the theory of crossvalidation, we propose an a-nonymous payment protocol which have following features: protecting theconfidentiality of sensitive payment i...By using Pedersen's verifiable secret sharing scheme and the theory of crossvalidation, we propose an a-nonymous payment protocol which have following features: protecting theconfidentiality of sensitive payment information from spying by malicioushosts; using a trustedthird party in a minimal way; verifying the validity of the share by the merchant; allowing agent toverify that the product which it is a-bout to receive is the one it is paying for; keeping thecustomer anonymous.展开更多
文摘Most of the public key algorithms used in the exchange of information for power data transmission protocols are RSA. The core of the key part of this kind of algorithm system has not been announced. For the domestic sensitive information data field, there are threats such as preset backdoors and security vulnerabilities. In response to the above problems, the article introduces a secure communication protocol based on the optimized Secret SM2 algorithm, which uses socket programming to achieve two-way encrypted communication between clients and services, and is able to complete the security protection of data encryption transmission, authentication, data tampering, etc., and proves through experiments that the security protocol is more secure than traditional methods, can effectively identify each other, carry out stable and controllable data encryption transmission, and has good applicability.
文摘We introduce in this paper cryptographic protocols which use combinatorial group theory. Based on a combinatorial distribution of shares we present secret sharing schemes and cryptosystems using Nielsen transformations. Nielsen transformations are a linear technique to study free groups and general infinite groups. In addition the group of all automorphisms of a free group F, denoted by AUT (F), is generated by a regular Nielsen transformation between two basis of F, and each regular Nielsen transformation between two basis of F defines an automorphism of F.
文摘By using Pedersen's verifiable secret sharing scheme and the theory of crossvalidation, we propose an a-nonymous payment protocol which have following features: protecting theconfidentiality of sensitive payment information from spying by malicioushosts; using a trustedthird party in a minimal way; verifying the validity of the share by the merchant; allowing agent toverify that the product which it is a-bout to receive is the one it is paying for; keeping thecustomer anonymous.
基金国家重点基础研究发展规划(973)(the National Grand Fundamental Research 973 Program of China under Grant No.2003CB317003)国家自然科学基金(the National Natural Science Foundation of China under Grant No.60503007)国家教育部新世纪人才支持计划(the Program for New Century Excellent Talent from MOE of China)
