To solve the problems of unified identity authentication between heterogeneous application systems that emerged in the procedure of informatization construction. The paper presents a 3-tier architecture solution that contains user tier, unified authentication tier and application system tier to realize unified identity authentication between legacy system and new application system. For legacy systems, the paper presents a method of double authentication that users firstly log on unified identity authentication system for unified identity validation, then securely transmit authenticated unified identity information and simulate the authentication progress via the authentication mechanism of legacy systems for permission distributing. For new application systems, the paper presents a method of centralized authentication through a relatively independent Role Based Access Control (RBAC) identity authentication model that consists of organization, user, role and permission entries to realize the logical separation of users and access permission, then designs a Directory Information Tree (DIT) structure based on the RBAC model for permissions distributing and access controlling

Unified Identity Authentication between Heterogeneous Systems Based on LDAP and RBAC

About the schemes for authenticating origin autonomous systems, related documents think it is appropriate to authenticate address attestations and related public keys only using the information of update messages. However, this approach is infeasible in existing schemes because update messages are limited in length to 4096 bytes and thus are too small to carry the necessary public key certificates. For realizing this approach, in this paper, we make full use of specific characteristics of a variation of ELGamal signature and thus present a method for fast and lazy authenticating origin ASs. In the process of hierarchical issuing keys of proposed method, an efficient formula of computing public keys is achieved. For authenticating public keys, it is not necessary for a verifier to check a series of certificates existing in certification path from the owner of advertised prefix to the IANA (Internet Assigned Numbers Authority). Thus the lazy authentication of origin ASs is achieved because a verifier can authenticate address attestations and related public keys only using the information of update messages. The path validation from IANA to the owner of advertised prefix, where signatures can only be verified separately in existing asymmetric cryptography based solutions of IP prefix hijacking, can be replaced with efficient computing of only a single formula, which can bring about fast authentication of origin ASs. To the best of our knowledge, it is the first work for authenticating origin autonomous systems by using ELGamal signature to achieve a fast scheme that can authenticate address attestations and related public keys only using the information of update messages.

Using a Variation of Elgamal Signature to Support Fast and Lazy Authenticating Origin Autonomous Systems

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Using a Variation of Elgamal Signature to Support Fast and Lazy Authenticating Origin Autonomous Systems