149 research outputs found

    Security Issues of the Digital Certificates within Public Key Infrastructures

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    The paper presents the basic byte level interpretation of an X.509 v3 digital certificate according to ASN.1 DER/BER encoding. The reasons for byte level analysis are various and important. For instance, a research paper has mentioned how a PKI security may be violated by MD5 collision over information from the certificates. In order to develop further studies on the topic a serious knowledge about certificate structure is necessary.digital certificates, certificates authority, ASN.1 DER/BER, PKI

    Characteristics of the Audit Processes for Distributed Informatics Systems

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    The paper contains issues regarding: main characteristics and examples of the distributed informatics systems and main difference categories among them, concepts, principles, techniques and fields for auditing the distributed informatics systems, concepts and classes of the standard term, characteristics of this one, examples of standards, guidelines, procedures and controls for auditing the distributed informatics systems. The distributed informatics systems are characterized by the following issues: development process, resources, implemented functionalities, architectures, system classes, particularities. The audit framework has two sides: the audit process and auditors. The audit process must be led in accordance with the standard specifications in the IT&C field. The auditors must meet the ethical principles and they must have a high-level of professional skills and competence in IT&C field.informatics audit, characteristic, distributed informatics system, standard

    E-Commerce Project Management Implementation

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    The term eBusiness and eCommerce have many definition in IT fields. One of them is that the eBusiness is the integration of a company's business including products, procedures, and services over the Internet [ANIT00]. Ussualy and in practice a company turns its business into an eBusiness when it integrates the marketing, sales, accounting, manufacturing, and operations with web site activities. An eBusiness uses the Internet as a resource for all business activities.e-commerce, e-business, accounting, sales, manufacturing

    E-Commerce Project Management Implementation

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    It is defined the informatics application interface concept and it is presented the role of this one in software using. There are pointed out the interface characteristics and the factors which lead to their efficiency. The software interfaces are classified on the base of many criteria. There are defined evaluation indicators for interface complexity that build the picture regarding operation facility of informatics application and their adaptation to new problem requirements.complexity, interface, entity

    Specific Mathematical Aspects of Dynamics Generated by Coherence Functions

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    This study presents specific aspects of dynamics generated by the coherence function (acting in an integral manner). It is considered that an oscillating system starting to work from initial nonzero conditions is commanded by the coherence function between the output of the system and an alternating function of a certain frequency. For different initial conditions, the evolution of the system is analyzed. The equivalence between integrodifferential equations and integral equations implying the same number of state variables is investigated; it is shown that integro-differential equations of second order are far more restrictive regarding the initial conditions for the state variables. Then, the analysis is extended to equations of evolution where the coherence function is acting under the form of a multiple integral. It is shown that for the coherence function represented under the form of an nth integral, some specific aspects as multiscale behaviour suitable for modelling transitions in complex systems (e.g., quantum physics) could be noticed when n equals 4, 5, or 6
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