Re: md5Digest gives different results Mac vs Windows LC 9.5.1
Hi Bill
As Brian said LiveCode is not calculating different values on different
platforms. You can’t just look at the output in a text field and compare
though. The function returns binary data so needs to be hex encoded for cross
platform comparison. If you put it into a field then LiveCode will do its
normal binary data to string conversion which uses a different text encoding on
each platform so it will look different in the field.
To compare cross platform use:
get binaryDecode("h*", messageDigest(textEncode("My very large data", "UTF-8"),
"SHA3-256"), tHash); put tHash
Cheers
Monte
> On 20 Apr 2020, at 10:14 am, Bill Vlahos via use-livecode
> wrote:
>
> The LiveCode Dictionary states:
> When generating a messageDigest for a string, it is a good idea to encode it
> to binary data using the textEncode <> function. Otherwise, the messageDigest
> could be different, depending on the platform <> on which your application is
> running.
>
> However, I tried their example in the Dictionary but it still gives different
> values on Macintosh vs. Windows:
> put textEncode("My very large data", "UTF-8") into tOriginal
> put messageDigest(tOriginal, "SHA3-256") into tChecksum
>
> Why would the platform calculate the hashes differently?
> Why did older versions of LiveCode calculate it the same?
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Re: md5Digest gives different results Mac vs Windows LC 9.5.1
The LiveCode Dictionary states:
When generating a messageDigest for a string, it is a good idea to encode it to
binary data using the textEncode <> function. Otherwise, the messageDigest
could be different, depending on the platform <> on which your application is
running.
However, I tried their example in the Dictionary but it still gives different
values on Macintosh vs. Windows:
put textEncode("My very large data", "UTF-8") into tOriginal
put messageDigest(tOriginal, "SHA3-256") into tChecksum
Why would the platform calculate the hashes differently?
Why did older versions of LiveCode calculate it the same?
Regards,
Bill Vlahos
> On Apr 19, 2020, at 2:15 PM, Brian Milby via use-livecode
> wrote:
>
> Try this:
>
> put 0 into x;put binaryDecode("h32",the md5digest of "LiveCode",x);put x
>
> You will get the same on both platforms.
>
> On Sun, Apr 19, 2020 at 5:13 PM Bill Vlahos via use-livecode <
> use-livecode@lists.runrev.com> wrote:
>
>> Well earlier versions of LiveCode gave the same results on Mac and Windows.
>>
>> Bill
>>
>>> On Apr 19, 2020, at 1:51 PM, matthias rebbe via use-livecode <
>> use-livecode@lists.runrev.com> wrote:
>>>
>>> I think this is, because Mac uses Mac Roman and Windows ISO encoding.
>>>
>>> Or am i wrong?
>>>
>>> -
>>> Matthias Rebbe
>>> Life Is Too Short For Boring Code
>>>
Am 19.04.2020 um 22:34 schrieb Bill Vlahos via use-livecode <
>> use-livecode@lists.runrev.com>:
Before I report this as a bug, please confirm I’m not doing something
>> stupid.
LiveCode 9.5.1 Indy
In the message box put the following:
put the md5Digest of "LiveCode"
I get the expected result on Macintosh but a different result on
>> Windows.
Thank you,
Bill Vlahos
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>>>
>>>
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Re: md5Digest gives different results Mac vs Windows LC 9.5.1
Try this:
put 0 into x;put binaryDecode("h32",the md5digest of "LiveCode",x);put x
You will get the same on both platforms.
On Sun, Apr 19, 2020 at 5:13 PM Bill Vlahos via use-livecode <
use-livecode@lists.runrev.com> wrote:
> Well earlier versions of LiveCode gave the same results on Mac and Windows.
>
> Bill
>
> > On Apr 19, 2020, at 1:51 PM, matthias rebbe via use-livecode <
> use-livecode@lists.runrev.com> wrote:
> >
> > I think this is, because Mac uses Mac Roman and Windows ISO encoding.
> >
> > Or am i wrong?
> >
> > -
> > Matthias Rebbe
> > Life Is Too Short For Boring Code
> >
> >> Am 19.04.2020 um 22:34 schrieb Bill Vlahos via use-livecode <
> use-livecode@lists.runrev.com>:
> >>
> >> Before I report this as a bug, please confirm I’m not doing something
> stupid.
> >>
> >> LiveCode 9.5.1 Indy
> >>
> >> In the message box put the following:
> >> put the md5Digest of "LiveCode"
> >>
> >>
> >> I get the expected result on Macintosh but a different result on
> Windows.
> >>
> >> Thank you,
> >> Bill Vlahos
> >> ___
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> subscription preferences:
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> >
> >
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>
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Re: md5Digest gives different results Mac vs Windows LC 9.5.1
Well earlier versions of LiveCode gave the same results on Mac and Windows. Bill > On Apr 19, 2020, at 1:51 PM, matthias rebbe via use-livecode > wrote: > > I think this is, because Mac uses Mac Roman and Windows ISO encoding. > > Or am i wrong? > > - > Matthias Rebbe > Life Is Too Short For Boring Code > >> Am 19.04.2020 um 22:34 schrieb Bill Vlahos via use-livecode >> : >> >> Before I report this as a bug, please confirm I’m not doing something stupid. >> >> LiveCode 9.5.1 Indy >> >> In the message box put the following: >> put the md5Digest of "LiveCode" >> >> >> I get the expected result on Macintosh but a different result on Windows. >> >> Thank you, >> Bill Vlahos >> ___ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode > > > ___ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: md5Digest gives different results Mac vs Windows LC 9.5.1
I think this is, because Mac uses Mac Roman and Windows ISO encoding. Or am i wrong? - Matthias Rebbe Life Is Too Short For Boring Code > Am 19.04.2020 um 22:34 schrieb Bill Vlahos via use-livecode > : > > Before I report this as a bug, please confirm I’m not doing something stupid. > > LiveCode 9.5.1 Indy > > In the message box put the following: > put the md5Digest of "LiveCode" > > > I get the expected result on Macintosh but a different result on Windows. > > Thank you, > Bill Vlahos > ___ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
