Re: Need and algorithm to converse characters to unique and permanent Serials

It seems to me you want a simple digest hash of the input string. Depending on your needs, Digest::CRC, Digest::MD4, Digest::MD5 or Digest::SHA1 might be interesting for you.

Comment on Re: Need and algorithm to converse characters to unique and permanent Serials

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Re^2: Need and algorithm to converse characters to unique and permanent Serials by salva (Canon) on Jan 29, 2009 at 10:07 UTC
The OP asked for unique serials, and those algorithms can not guaranteed that, they just make repetitions unlikely (...I know, the requirements are quite vague). If uniquesness is a hard requirement, I think that there are only two possible solutions: Track used serials in a file or database (using DB_File or SQLite, for instance). Make the serials transforming the originals in a way so that no information is lost (an injective transformation). For instance, if the data has some structure, use that knowledge to compress it, and then convert it to a human-friendly format.	[reply]
Re^3: Need and algorithm to converse characters to unique and permanent Serials by Limbic~Region (Chancellor) on Jan 29, 2009 at 18:07 UTC
salva, Using the DB approach would allow the use of Data::UUID. If input string exists, return key If not, generate new one, store it, return it Cheers - L~R	[reply]