| 2020-08-21 15:08:23 |
Dave Ford |
description |
Generating a version 3 uuid on Ubuntu appears to be producing inconsistent output compared to online checkers and versions of this tool compiled on different OSs. E.g.
On U18.04.5
uuidgen --namespace @dns --name 'foo' -m (version 3 using md5)
3f46ae03-c654-36b0-855d-cd0aa042c9f2
uuidgen --namespace @dns --name 'foo' -s (version 5 with sha1)
b84ed8ed-a7b1-502f-83f6-90132e68adef
On Gentoo,
uuidgen --namespace @dns --name 'foo' -m
3f46ae03-c654-36b0-a55d-cd0aa042c9f2 (note a55a rather than 855d)
uuidgen --namespace @dns --name 'foo' -s
b84ed8ed-a7b1-502f-83f6-90132e68adef
On raspbian
uuidgen --namespace @dns --name 'foo' -m
3f46ae03-c654-36b0-a55d-cd0aa042c9f2 (note a55a same as on gentoo)
uuidgen --namespace @dns --name 'foo' -s
b84ed8ed-a7b1-502f-83f6-90132e68adef
Looking at this https://github.com/karelzak/util-linux/issues/683
gave me pause to see if I could replicate this similar problem
On Ubuntu, using the python library I get
python -c "import uuid ; print(uuid.uuid3(uuid.UUID('6ba7b810-9dad-11d1-80b4-00c04fd430c8'), 'foo'))"
3f46ae03-c654-36b0-a55d-cd0aa042c9f2
The same result is returned on raspbian and Gentoo.
This makes me wonder if there's a problem with the uuidgen tool, as python is giving me consistent results on all three OS's and agrees with the uuidgen tool in Gentoo and Raspbian and also agrees with the output of this webtool
https://uuidonline.com/
and this
https://www.uuidtools.com/v3
Ubuntu is producing a different result. |
Generating a version 3 uuid on Ubuntu appears to be producing inconsistent output compared to online checkers and versions of this tool compiled on different OSs. E.g.
On U18.04.5
uuidgen --namespace @dns --name 'foo' -m (version 3 using md5)
3f46ae03-c654-36b0-855d-cd0aa042c9f2
uuidgen --namespace @dns --name 'foo' -s (version 5 with sha1)
b84ed8ed-a7b1-502f-83f6-90132e68adef
On Gentoo,
uuidgen --namespace @dns --name 'foo' -m
3f46ae03-c654-36b0-a55d-cd0aa042c9f2 (note a55d rather than 855d)
uuidgen --namespace @dns --name 'foo' -s
b84ed8ed-a7b1-502f-83f6-90132e68adef
On raspbian
uuidgen --namespace @dns --name 'foo' -m
3f46ae03-c654-36b0-a55d-cd0aa042c9f2 (note a55d same as on gentoo)
uuidgen --namespace @dns --name 'foo' -s
b84ed8ed-a7b1-502f-83f6-90132e68adef
Looking at this https://github.com/karelzak/util-linux/issues/683
gave me pause to see if I could replicate this similar problem
On Ubuntu, using the python library I get
python -c "import uuid ; print(uuid.uuid3(uuid.UUID('6ba7b810-9dad-11d1-80b4-00c04fd430c8'), 'foo'))"
3f46ae03-c654-36b0-a55d-cd0aa042c9f2
The same result is returned on raspbian and Gentoo.
This makes me wonder if there's a problem with the uuidgen tool, as python is giving me consistent results on all three OS's and agrees with the uuidgen tool in Gentoo and Raspbian and also agrees with the output of this webtool
https://uuidonline.com/
and this
https://www.uuidtools.com/v3
Ubuntu is producing a different result. |
|
