Is the issue with md5sums in ROS-1 fixed in ROS-2?

asked 2021-10-14 02:44:18 -0500

vorzawk gravatar image

There is a known issue with ROS-1 that that algo to generate the md5-sums for messages does not consider array lengths. This means that message types which only differ in the length of an array member will have the same md5-sum. Does ROS-2 fix this?

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Unless something changed recently, ROS 2 does not use MD5 hashes in any way in this part of the infrastructure. I'm not sure whether that qualifies as "the issue is fixed" though.

gvdhoorn gravatar image gvdhoorn  ( 2021-10-14 02:59:09 -0500 )edit

Not using md5 hashes seems like a sure-shot way to fix this issue :D

vorzawk gravatar image vorzawk  ( 2021-10-15 01:13:40 -0500 )edit
1

well .. technically it isn't I believe. It just completely side-steps it.

gvdhoorn gravatar image gvdhoorn  ( 2021-10-15 02:11:39 -0500 )edit

Some related discussion: ros2/ros2#1159.

gvdhoorn gravatar image gvdhoorn  ( 2022-05-17 11:56:50 -0500 )edit
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