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Re: How do you check the equivalency of references?
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Re: How do you check the equivalency of references?

  • Subject: Re: How do you check the equivalency of references?
  • From: "Jason W. Bruce" <email@hidden>
  • Date: Thu, 09 Aug 2001 09:19:03 +0000
Jon,

What's a checksum?

Jason Bruce

> From: Jon Pugh <email@hidden>
> Subject: Re: How do you check the equivalency of references?
>
> At 11:57 AM -0700 8/8/2001, John W Baxter wrote:
>> "Anthony Adachi" <email@hidden> wrote:
>>> By the way, what is the MD5 scripting addition?
>>
>> I don't know whether we have one. I said "**IF** we have a handy MD5
>> scripting addition...". [emphasis added this time around]
>
> An MD5 of a file is also largely undefined on the Macintosh, since there are
> two forks to a file. Do you checksum the data fork, combine the two into a
> MacBinary file and hash that, do the Finder flags count, or what?
>
> Typically MD5 checksums are only used to determine if the contents of a file
> have changed. However, it would be pretty easy to write an MD5 scripting
> addition.
>
> The definition of MD5: http://www.ietf.org/rfc/rfc1321.txt
>
> Jon

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