| Subject | Re: hash.cc |
| From | Lee Grant <camilee@nospam.comcast.net> |
| Date | Thu, 22 Feb 2024 08:42:13 -0500 |
| Newsgroups | dbase.getting-started |
Marc, So you're saying that hash can't be used more than one time? :) <g,d,r> Lee On 2/22/2024 6:01 AM, Marc VdB wrote: > Hi Charlie, > >> Hi.. Has anyone used hash.cc from the duflp? Is there something >> wrong with it? I ask this only because a couple of weeks ago I was >> looking for something like this and no one mentioned it! Thanks for >> any feedback. > > there is a fundamental difference between hashing and encryption! If you > want to encrypt something, you also want to decrypt it: it is a > two-way-thing. Hashing on the other side is a one-way algorithm. > If you have a hash-string, there is no way you can get back the original > string that was hashed. > So you can use the hashing to provide some security, you could also use > it for indexing, because a hash has always the same length, no matter > the length of the original value (equal length indexes are a good thing) > (although you could get the same hash for different input values (a > veeery rare situation)). But you can't use it for encryption/decryption... > > HTH, > Marc | |