P. Zimmermann. PGP Source Code and Internals. The MIT Press, 1995.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....such a way that people can select and recombine the solutions most suitable to their needs. At the lowest level, SFS provides secure client server communication through the abstraction of self certifying hostnames. A self certifying hostname contains the hash of a server s public key (like a PGP [33] fingerprint) Given such a hash, an SFS client uses well known cryptographic techniques to establish a secure channel to the server, encrypting and authenticating all messages to protect them from network eavesdropping and tampering attacks. See Mazires et al. 16] for details. Unfortunately, ....

Philip Zimmermann. PGP: Source Code and Internals. MIT Press, 1995. 12

....trust model: This model is based almost entirely on users mutual exchange of keys prior to the initiation of the first communication. This means that trust exists only in bilateral assurance and it is not applicable for complex organisations. Pretty Good Privacy (PGP) is an example of this model [8]. Single trusted arbitrator: This model is based on the existence of a trusted arbitrator for each transaction. The Kerberos TTP authentication protocol [9] is an example of this type. A set of CAs: This model is based on CA receiving their trust from a broad user community, due to their ....

....that request access. If S does not possess a certificate, the system administrators of Hospital H must follow the same procedure to register and obtain a certificate for S. Assume that P attempts access to S, in order to obtain the patient record of G. The procedure, in detail, is the following : [8] P points his browser in client machine C, to S. 9] SSL handshake occurs and secure communication (SSL) commences between the two parties as soon as P enters his secret key password in order to unlock it. 10] S performs a secure lookup in the CA Directory. If P is a registered physician and ....

Zimmermann, P. (1995) PGP Source Code and Internals (Cambridge: MIT Press)

....for cross certification between CAs) existing implementations remain quite scarce. In our opinion, this is mainly due to the inherent complexity of its certification structure and to the practical difficulty to map existent CAs into a true hierarchical structure. Pretty Good Privacy (PGP [14] and PGP MIME [15] aims also at providing security enhancements to Internet E mail. For certificate issues, PGP relies on a transitive chain of trust between users (web of trust) and has gained significant popularity in the Internet community. This certificate structure offers considerable ....

P.R. Zimmermann. PGP Source Code and Internals. Boston: MIT Press 1995.

....science research, to protect the secrecy of users identities in the face of compromised servers, and to provide a robust email service people can rely on. We achieved the first goal, attracting users, by building on existing infrastructure. To use nym.alias.net, one only needs a copy of PGP [15], the most widely used encryption program. Moreover, nym.alias.net exploits a preexisting network of anonymous remailers servers that strip identifying information from mail and forward it, after optionally decrypting, encrypting, or delaying it. While a clean slate pseudonym server design would ....

Phil Zimmermann. PGP: Source Code and Internals. MIT Press, 1995.

....a collision resistant one way hash function. In accordance with international standardization, the term X Y AE is used to refer to a certificate that has been issued by X for Y s long term public key kY . This certificate may conform to any standard in use today, such as ITU T X. 509 [11] or PGP [12, 13]. In this paper, X typically represents an online university U i (i 1) and Y represents a professor, lecture, student, or service provider. In addition to the certificates mentioned above, the term Sm X;L ij is used to denote a registration certificate that has been issued by service ....

P. Zimmermann, PGP Source Code and Internals. Cambridge, MA: The MIT Press, 1995.

....hash function. In accordance with international standardization, the term X Y AE is used to refer to a certificate that has been issued by X for Y s long term public key k Y . This certificate may conform to any standard in use today, such as ITU T X. 509 (ITU T, 1987) or Pretty Good Privacy (Zimmermann, 1995). In this paper, X typically represents an online university U i (i 1) whereas Y represents a professor, lecture, student, or service provider. In addition to the certificates mentioned above, the term Sm X;L ij is used to denote a registration certificate that has been issued by service ....

Zimmermann, P. (1995) PGP Source Code and Internals. The MIT Press, Cambridge, MA.

....of security is becoming an important issue in the competition between TINA technology and other multi service networks, first of all the Internet. In the Internet world, several approaches on various layers, all based on cryptography, are currently discussed or already in use, e.g. 3] 10] 4] [26]. In order to be competitive, TINA networks must guarantee at least the same degree of security. An important field of application is electronic commerce. The Internet does not yet have a specific architecture for electronic commerce. On the other hand, TINA with its business model and service ....

P.R.Zimmermann. PGP Source Code and Internals. MIT Press, 1995.

....networks, such as the Internet, the need for security has been recognized when the use of global networks expanded from the academic field to business and home computing. Currently, several approaches on various layers, all based on cryptography, are discussed or already in use, e.g. 3] 6] 4] [15]. One systematic adoption of the object oriented programming paradigm in the field of telecommunications is the Telecommunications Information Networking Architecture (TINA) 13] EPFL DI LSE, CH 1015 Lausanne, fon: 41 21 693 5267, fax: 41 21 693 6770, e mail: staa lse.epfl.ch In TINA, ....

P.R.Zimmermann, "PGP Source Code and Internals", MIT Press, Boston, 1995.

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P. Zimmermann. PGP Source Code and Internals. The MIT Press, 1995.

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Philip Zimmermann. PGP: Source Code and Internals. MIT Press, 1995. 77

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Philip Zimmermann. PGP Source Code and Internals. The MIT

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Philip Zimmermann. PGP: Source Code and Internals. MIT Press, 1995.

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Philip Zimmermann. PGP: Source Code and Internals. MIT Press, 1995.

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P. Zimmermann. PGP Source Code and Internals. The MIT Press, 1995.

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P. R. Zimmermann. PGP: Source Code and Internals. MIT Press, 1995.

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P. Zimmermann. PGP Source Code and Internals. The MIT Press, 1995.

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Philip R. Zimmermann. PGP: Source Code and Internals. MIT Press, Cambridge,

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