Public key infrastructure

Certification authority The authority (part of the public-key infrastructure) in a network that issues and manages security credentials and public key for message encryption and decryption from a certificate server (NARA). 

Masera P Chawdhry and M Wilikens. The first version of software tool was developed by M. Jarzebski as a part of his M.Sc. Thesis. The application of this approach to e-Health is supported by the EU 6FR Integrated Project PIPS (Contract 507019) and Polish Committee of Scientific Research (grant 155/E-359/SPB/6,PR UE/DIE 281). The application to public key infrastructure is supported by Polish Committee of Scientific Research (grant 6T112003C/06280). 

Six years ago, Public Key Infrastructure (PKI)—as any popular buzzword—seemed to be a remedy for (almost) every security problem and the electronic signature was supposed to be used by (almost) everyone very soon. Today, we are not much closer to the paperless world. Based on experience coming from a number of PKI projects, the author of this paper points out some obstacles preventing people from using the electronic signature and looks for solutions. 

E-mail over the Internet is not secure without Public Key Infrastructure (PKl). 

Where e-mail is routinely used to communicate authorization and approvals, regulatory authorities will expect to see evidence that the authorization and approval mechanism is secure and robust. In such cases Public Key Infrastructure (PKI) techniques and use of Digital Signatures will bring additional security necessary to ensure robustness and security of transfers. 

RFC 2527, Internet X.509 Public-Key Infrastructure, Certificate Policy, and Certification Practices Framework, http / /www. ietf. org/ ifc. html. 

Public key cryptography is fast becoming the foundation for on-line commerce and other applications that require security and authentication. The use of this kind of cryptography requires a public key infrastructure (PKI) to publish and manage public key values. To prepare the activities for the implementation of PKI features an evaluation of commercial hardware and software solutions is necessary. The implementation of PKI features generally can be divided into several steps ... 

Figure 6.1 Health informatics security infrastructure based on public key infrastructure...

The secure electronic data vault services described in the previous section exploit the public key infrastructure (PKI) based on the RSA cryptography,1 but in a nontraditional way using a new approach in the asymmetric cryptography. The concept of the RSA cryptography for secure exchange of an elec-... 

With public key cryptography, some of the key management problems are solved. However, in order for Alice s public key to be useful, it is important that others know that it is her key, and not someone else masquerading as her for the purpose of receiving her secret messages. Hence, it is important that the binding between a public key and an identity is authenticated. Wide-scale methods for doing this are called public key infrastructures, and are also described below. 

Public Key Infrastructure PKI, which aims to guide the structure of the trust of digital certificates. 

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