goglholdings.blogg.se

1. CRYPTEXT FOR WINDOWS INSTALL
2. CRYPTEXT FOR WINDOWS ZIP FILE
3. CRYPTEXT FOR WINDOWS UPDATE
4. CRYPTEXT FOR WINDOWS SOFTWARE
5. CRYPTEXT FOR WINDOWS PASSWORD

The file is then encrypted in 16Kb blocks. This step is taken to ensure that no two files are encrypted with the same keystream.Ĥ. For each file selected, it then concatenates the key from step 2 with a salt value generated from (a) the number of 100-nanosecond intervals since January 1, 1601, and (b) a 32-bit random number, and hashes this concatenation with SHA-1 to produce the key which is used for the encryption. When you encrypt a file, Cryptext takes your passphrase and uses the SHA-1 one-way hash function to generate a 160-bit key.ģ.

CRYPTEXT FOR WINDOWS INSTALL

When you install Cryptext it adds "Encrypt" and "Decrypt" items to the context menu you get when right-clicking on files or directories in Explorer.Ģ. BBS, web or ftp sites, shareware dealers, and shareware CDs.ġ. Select the "Cryptext (Remove only)" entry.Ĭryptext may be distributed by any means: eg. From the Start menu, select Settings, then Control Panel, then Add/Remove Programs.Ģ.

CRYPTEXT FOR WINDOWS UPDATE

This is because only an Administrator has update rights to the part of the registry where shell extensions are registered.ġ. To install Cryptext on Windows NT you must be logged in as Administrator or a user who is a member of the Administrators group.

CRYPTEXT FOR WINDOWS ZIP FILE

Unzip the installation executable CRYPT320.EXE from the ZIP file and run it. If you have a previous version of Cryptext older than v2.30 installed, decrypt any encrypted files.Ģ. The encryption/decryption progress bar now uses the smooth progress style available with COMCT元2.DLL v4.70 and later.ġ. If you are presently using Cryptext v1.x, you *must* decrypt all encrypted files before installing the new version of Cryptext, or you will have no way of decrypting previously encrypted files.Īdded Portugese version of Cryptext.

CRYPTEXT FOR WINDOWS PASSWORD

However, DECRYPT.EXE can only decrypt a single file at a time, and makes no check that you are using the same password for decryption as you used when encrypting the file. If you do not, you will not be able to decrypt these files without un-installing the new version and re-installing the previous version.Īlternatively, you can use the console application DECRYPT.EXE, which is included in the ZIP file, to decrypt any file encrypted with Cryptext version 2.0 or later. If you have files you have encrypted with a version of Cryptext older than v2.30, you must decrypt them before installing this new version. **IMPORTANT** This version of Cryptext implements a checksum to prevent accidental decryption of a file with the wrong password, and is *not* compatible with any version of Cryptext prior to v2.30. THE USER MUST ASSUME THE ENTIRE RISK OF USING THE PROGRAM.Īny product or brand names mentioned in this document are trademarks or registered trademarks of their respective owners. GOOD DATA PROCESSING PROCEDURE DICTATES THAT ANY PROGRAM BE THOROUGHLY TESTED WITH NON-CRITICAL DATA BEFORE RELYING ON IT.

CRYPTEXT FOR WINDOWS SOFTWARE

BECAUSE OF THE VARIOUS HARDWARE AND SOFTWARE ENVIRONMENTS INTO WHICH THIS PROGRAM MAY BE PUT, NO WARRANTY OF FITNESS FOR PARTICULAR PURPOSE IS OFFERED. THIS SOFTWARE AND DOCUMENTATION ARE PROVIDED "AS IS" AND WITHOUT WARRANTIES AS TO PERFORMANCE OF MERCHANTABILITY OR ANY OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED. Copyright restrictions do not remove "technology" or "software" from being "in the public domain". This means "technology" or "software" which has been made available without restrictions upon its further dissemination. The Lists do not control "software" which is either: The 'General Software Note' adds the following: The Wassenaar list of dual-use technologies says, in its 'General Technology Note':Ĭontrols do not apply to "technology" "in the public domain", to "basic scientific research" or to the minimum necessary information for patent applications." Verify that you are allowed to use or distribute Cryptext before doing so. Note that Cryptext contains strong cryptographic routines upon which some countries place distribution and/or use restrictions (but see below, it does not appear to be covered by the Wassenaar agreement). The readme file and help file are still English language for all versions.Ĭryptext is public domain software, and may be used in any way, for any purpose, at no cost. Only the Cryptext program itself is language specific. The ZIP file for the English version is CRYPTEXT.ZIP, for the French version CRYPTFRA.ZIP, for the German version CRYPTDEU.ZIP, for the Spanish version CRYPTESP.ZIP, and for the Portugese version CRYPTPOR.ZIP. This version of Cryptext is available in English, French, German, Spanish, and Portugese language versions. The current versions of Cryptext can always be found on my home page at, and are mirrored to the ftp site /pub/crypt/utilities/file. It uses a combination of SHA-1 and RC4 to encrypt files using a 160-bit key. Cryptext is a public domain Windows 95 / NT4 shell extension that performs strong file encryption.