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1.1.1.6 ! root 1: Pretty Good Privacy version 2.6 - READ ME FIRST ! 2: Notes by Perry Metzger ! 3: Edited for 2.3a by Colin Plumb ! 4: ! 5: ! 6: You are looking at the README file for PGP release 2.6. PGP, short for ! 7: Pretty Good Privacy, is a public key encryption package; with it, you ! 8: can secure messages you transmit against unauthorized reading and ! 9: digitally sign them so that people receiving them can be sure they ! 10: come from you. ! 11: ! 12: The files pgpdoc1.txt and pgpdoc2.txt contain documentation for the ! 13: system. Before using PGP, PLEASE READ THE DOCUMENTATION. This tends ! 14: to get neglected with most computer software, but cryptography software ! 15: is easy to misuse, and if you don't use it properly much of the security ! 16: you could gain by using it will be lost! ! 17: ! 18: Security is only as strong as the weakest link, and while the algorithms ! 19: in PGP are some of the strongest known in the civilian world, there are ! 20: things outside the program's control which can weaken your security as ! 21: assuredly as forgetting to lock a vault door. Even if you are already ! 22: familiar with public key cryptography, it is important that you ! 23: understand the various security issues associated with using PGP. ! 24: ! 25: There are four archives in the PGP 2.6 release. You will usually only ! 26: need one of them. They are: ! 27: - pgp26.zip This is the MS-DOS executable release, which includes ! 28: the executable, support files, and basic documentation. ! 29: Note: This archive contains an inner zip file named ! 30: pgp26i.zip. This internal zip file contains the actual ! 31: PGP release. pgp26.zip contains it and pgp26i.asc which ! 32: is a detached signature generated by [email protected] for ! 33: pgp26i.zip. In this fashtion you can verify that the ! 34: release you received is authentic. Other signatures ! 35: will be included in the future. ! 36: - pgp26src.zip This is a source code release, which includes all the source ! 37: code needed to compile PGP and examples of usage. This ! 38: contains everything in pgp26.zip except the pgp.exe binary. ! 39: Note: It also contains a signature and an internal ZIP ! 40: file so you can verify the integrity of the release you ! 41: have. ! 42: - pgp26src.tar.gz This contains exactly the same files as pgp26src.zip, except ! 43: that they use Unix rather than MS-DOS line end conventions. ! 44: Note: It also contains a signature and an internal tar ! 45: file so you can verify the integrity of the release you ! 46: have. ! 47: - pgp26src.tar.Z This is a UNIX compress version of pgp26src.tar.gz. ! 48: - pgp26doc.zip This is the documentation for PGP only. This can be freely ! 49: exported and is useful to tell people what PGP does. ! 50: Note: It also contains a signature and an internal ZIP ! 51: file so you can verify the integrity of the releaseyou ! 52: have. ! 53: ! 54: While we welcome ports to other platforms, if you make your own archive ! 55: for distribution, PLEASE INCLUDE THE MANUAL. It covers important ! 56: security and legal issues which a new user must know. ! 57: ! 58: Assuming you have a code (non-documentation) release, the file SETUP.DOC ! 59: contains information on how to install PGP on your system; this document ! 60: is broken up into several sections, each dealing with a different ! 61: operating system: PGP2.6 is known to run on MS-DOS and UNIX. It should ! 62: also run on VMS and OS/2, but these have not been tested yet. Part of ! 63: the information in SETUP.DOC might make more sense if you have already ! 64: read the manuals. ! 65: ! 66: PGP2.6 is freeware; you are welcome to copy and distribute it provided that ! 67: you do not export it from the U.S. and you follow the terms and conditions ! 68: of the included RSAREF license. ! 69: ! 70: For details on what has changed since release 2.3a, see doc/newfor24.doc, ! 71: doc/newfor25.doc and doc/newfor26.doc. Release 2.4 was given to ! 72: ViaCrypt only, and fixed a few minor bugs. ! 73: ! 74: MANIFEST for PGP 2.5 MSDOS executable release ! 75: --------------------------------------------- ! 76: ! 77: Here is a list of files included in the PGP 2.6 MSDOS executable release ! 78: file PGP26I.ZIP... ! 79: ! 80: README.DOC - This file you are reading ! 81: PGP.EXE - PGP executable program ! 82: CONFIG.TXT - User configuration parameter file for PGP ! 83: LANGUAGE.TXT - Sample language file for French and Spanish ! 84: PGP.HLP - Online help file for PGP ! 85: ES.HLP - Online help file in Spanish ! 86: FR.HLP - Online help file in French ! 87: KEYS.ASC - Sample public keys you should add to your keyring ! 88: DOC\SETUP.DOC - Installation guide ! 89: DOC\PGPDOC1.DOC - PGP User's Guide, Vol I: Essential Topics ! 90: DOC\PGPDOC2.DOC - PGP User's Guide, Vol II: Special Topics ! 91: DOC\BLURB.TXT - Brief description of PGP, for BBS indexes ! 92: DOC\POLITIC.DOC - Computer-related political groups ! 93: DOC\NEWFOR22.TXT - Differences between PGP 2.2 and PGP 2.1 ! 94: DOC\NEWFOR23.TXT - Differences between PGP 2.3 and PGP 2.2 ! 95: DOC\NEWFOR24.TXT - Differences between PGP 2.4 and PGP 2.3 ! 96: DOC\NEWFOR25.TXT - Differences between PGP 2.5 and PGP 2.4 ! 97: DOC\NEWFOR26.TXT - Differences between PGP 2.6 and PGP 2.5 ! 98: DOC\RSALICEN.TXT - RSAREF license ! 99: DOC\MITLICEN.TXT - PGP 2.6 License from MIT ! 100: DOC\KEYSERV.DOC - Information (maybe out of date) on PGP Keyservers ! 101: ! 102: For Clinical Paranoia Sufferers Only ! 103: ------------------------------------ ! 104: ! 105: It is always possible that the PGP you have received has been tampered ! 106: with in some way. This is a risk because PGP is used as a system to ! 107: assure security, so those wishing to breach your security could likely ! 108: do it by making sure that your copy of PGP has been tampered with. Of ! 109: course, if you receive PGP in a binary distribution, it makes sense to ! 110: check it for viruses, and if you receive PGP as source code, looking ! 111: for signs of obvious tampering might be a good idea. However, it is ! 112: very difficult to actually determine if the code has no subtle bugs ! 113: that have been introduced and that the executable you are using has ! 114: not been tampered with in any way. ! 115: ! 116: If you have a previous version of PGP which you already trust, the ! 117: cryptographic signature on the executable will assure you that it has ! 118: not been tampered with (with the possible exception of a "stealth virus" ! 119: already existing on your system). If you are a really paranoid person, ! 120: try getting a cryptographically signed copy of the software from someone ! 121: you trust to have a good copy. It would also likely be good for you to ! 122: pay special attention to the sections of the manual on "Vulnerabilities." ! 123: You are going to read the manual, aren't you?
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