[fpc-pascal] encryption
Hi all, Does anyone have a routine with example to encrypt/decrypt text files? Thanks in avance Fabrício F. Kammer ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] encryption
There are two hash in: fpcsrc/packages/base/hash There is, for example, Blowfish (a ciphers for actual encryption/decryption) in: fpcsrc/fcl/incblowfish.pp Blowfish is very good by the way (as is fast). There are many others; I also saw a a kit of many ciphers in Delphi which could certainly work on FPC. See http://www.efg2.com/Lab/Library/Delphi/MathFunctions/Cryptography.htm for many of them. I used that one http://www.cityinthesky.co.uk/cryptography.html in a project once, but it was under Delphi. It should work under FPC I think... It's up to you to try. Regards. -- Alexandre Leclerc ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] encryption
Alexandre Leclerc wrote: There are two hash in: fpcsrc/packages/base/hash There is, for example, Blowfish (a ciphers for actual encryption/decryption) in: fpcsrc/fcl/incblowfish.pp Blowfish is very good by the way (as is fast). There are many others; I also saw a a kit of many ciphers in Delphi which could certainly work on FPC. See http://www.efg2.com/Lab/Library/Delphi/MathFunctions/Cryptography.htm for many of them. I used that one http://www.cityinthesky.co.uk/cryptography.html in a project once, but it was under Delphi. It should work under FPC I think... It's up to you to try. It has been ported to fpc/lazarus: http://wiki.lazarus.freepascal.org/index.php/DCPcrypt Vincent ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] encryption
Thanks Alexandre and Vincent but I need of a bit more help with this. I'm working in a software to protect my main software. Look how I want to make: - This software will be a TCP Server (I'm calling it of Authentication software). - This software must run in the console, then I can't have graphical application for it. I want to make this software runs az daemon on the future. - I'll have some informations of the server (hardware information that I get on /proc) and the number of stations that can use my main software together storaged in a crypted file. - I need to read this crypted file, decrypt it and compare with the informations of /proc again. Then I need of a form to encrypt/decrypt the file to compare with the actual information. If I use md5 I can't decrypt the text. In yours opnion what's the indicate algorithm do make this? Thanks again Fabrício F. Kammer Conchal/SP/Brazil Vincent Snijders escreveu: Alexandre Leclerc wrote: There are two hash in: fpcsrc/packages/base/hash There is, for example, Blowfish (a ciphers for actual encryption/decryption) in: fpcsrc/fcl/incblowfish.pp Blowfish is very good by the way (as is fast). There are many others; I also saw a a kit of many ciphers in Delphi which could certainly work on FPC. See http://www.efg2.com/Lab/Library/Delphi/MathFunctions/Cryptography.htm for many of them. I used that one http://www.cityinthesky.co.uk/cryptography.html in a project once, but it was under Delphi. It should work under FPC I think... It's up to you to try. It has been ported to fpc/lazarus: http://wiki.lazarus.freepascal.org/index.php/DCPcrypt Vincent ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] encryption
2006/8/25, "Fabrício F. Kammer" <[EMAIL PROTECTED]>: If I use md5 I can't decrypt the text. In yours opnion what's the indicate algorithm do make this? Hi Fabrício, Exact, (as stated in my first email) all "hash" algo like md5 can't be decoded. These are... hash! All "cipher" algo like blowfish/twofish, etc. can be encoded, stored, and later decoded provided you have the key. Any cipher algo will serve your needs. Since DCPCrypt has been ported (thank you Vincent, I did not know), all cipher (in DCPciphers tab) will do what you need. Pick the one(s) that fit your needs. See http://wiki.lazarus.freepascal.org/index.php/DCPcrypt as given by Vincent. Best regards. -- Alexandre Leclerc ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] encryption
Thanks Alexandre, I'll see it. Regards Fabrício Alexandre Leclerc escreveu: 2006/8/25, "Fabrício F. Kammer" <[EMAIL PROTECTED]>: If I use md5 I can't decrypt the text. In yours opnion what's the indicate algorithm do make this? Hi Fabrício, Exact, (as stated in my first email) all "hash" algo like md5 can't be decoded. These are... hash! All "cipher" algo like blowfish/twofish, etc. can be encoded, stored, and later decoded provided you have the key. Any cipher algo will serve your needs. Since DCPCrypt has been ported (thank you Vincent, I did not know), all cipher (in DCPciphers tab) will do what you need. Pick the one(s) that fit your needs. See http://wiki.lazarus.freepascal.org/index.php/DCPcrypt as given by Vincent. Best regards. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] encryption
Alexandre, Do you know how can I use the DCP just in freepascal for prompt compilation? I'm not using Lazarus. Thanks again Fabrício F. Kammer escreveu: Thanks Alexandre, I'll see it. Regards Fabrício Alexandre Leclerc escreveu: 2006/8/25, "Fabrício F. Kammer" <[EMAIL PROTECTED]>: If I use md5 I can't decrypt the text. In yours opnion what's the indicate algorithm do make this? Hi Fabrício, Exact, (as stated in my first email) all "hash" algo like md5 can't be decoded. These are... hash! All "cipher" algo like blowfish/twofish, etc. can be encoded, stored, and later decoded provided you have the key. Any cipher algo will serve your needs. Since DCPCrypt has been ported (thank you Vincent, I did not know), all cipher (in DCPciphers tab) will do what you need. Pick the one(s) that fit your needs. See http://wiki.lazarus.freepascal.org/index.php/DCPcrypt as given by Vincent. Best regards. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] encryption
Alexandre, I could use the DCP on fpc... I compiled all units. Thanks Fabrício Fabrício F. Kammer escreveu: Alexandre, Do you know how can I use the DCP just in freepascal for prompt compilation? I'm not using Lazarus. Thanks again Fabrício F. Kammer escreveu: Thanks Alexandre, I'll see it. Regards Fabrício Alexandre Leclerc escreveu: 2006/8/25, "Fabrício F. Kammer" <[EMAIL PROTECTED]>: If I use md5 I can't decrypt the text. In yours opnion what's the indicate algorithm do make this? Hi Fabrício, Exact, (as stated in my first email) all "hash" algo like md5 can't be decoded. These are... hash! All "cipher" algo like blowfish/twofish, etc. can be encoded, stored, and later decoded provided you have the key. Any cipher algo will serve your needs. Since DCPCrypt has been ported (thank you Vincent, I did not know), all cipher (in DCPciphers tab) will do what you need. Pick the one(s) that fit your needs. See http://wiki.lazarus.freepascal.org/index.php/DCPcrypt as given by Vincent. Best regards. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: encryption [fpc-pascal]
Hello!
You ("Fabricio F. Kammer" [mailto:[EMAIL PROTECTED])
wrote about "[fpc-pascal] encryption" on 08/25/2006 at 17:56:
"F> Does anyone have a routine with example to encrypt/decrypt text files?
What exactly do you want to achieve by encryption? Security implemented
wrong is worse than no security at all.
SecureBlackbox (http://www.eldos.com/sbb/) is available for FPC btw
Sincerely yours,
Eugene Mayevski
___
fpc-pascal maillist - fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-pascal
