Re: [PHP] Mcrypt: Blowfish or Twofish or no fish? Part 2

On Wed, 22 May 2002, Jimmy Lantz wrote: > Thanx for the suggestions! > Someone mentioned that I could use MD5 and then encrypt the hash, > how would I ever decrypt that? Is'nt MD5 a 1-way thing only? > > Another question? > Should I go for bigger keylength or bigger blocksize or both? What makes

RE: [PHP] Mcrypt: Blowfish or Twofish or no fish? Part 2

:[EMAIL PROTECTED]] Sent: Wednesday, May 22, 2002 12:58 AM To: [EMAIL PROTECTED] Subject: [PHP] Mcrypt: Blowfish or Twofish or no fish? Part 2 Thanx for the suggestions! Someone mentioned that I could use MD5 and then encrypt the hash, how would I ever decrypt that? Is'nt MD5 a 1-way thing

Re: [PHP] Mcrypt: Blowfish or Twofish or no fish? Part 2

Yes Jimmy, you are correct. MD5 is a one-way hash. Its used for getting a unique fingerprint of some data (like files / passwords etc) so that it can be compared with another MD5 hash. Thats the point of a hashing algorithm like MD5 and SHA1 - you should never need to decrypt the data. Refe

[PHP] Mcrypt: Blowfish or Twofish or no fish? Part 2

Thanx for the suggestions! Someone mentioned that I could use MD5 and then encrypt the hash, how would I ever decrypt that? Is'nt MD5 a 1-way thing only? Another question? Should I go for bigger keylength or bigger blocksize or both? What makes for the best encryption? / Jim (and before someon