Use SHA256 instead of SHA1 for ipmi server connection algorithm#655
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nick-child-ibm wants to merge 1 commit intoopen-power:masterfrom
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Use SHA256 instead of SHA1 for ipmi server connection algorithm#655nick-child-ibm wants to merge 1 commit intoopen-power:masterfrom
nick-child-ibm wants to merge 1 commit intoopen-power:masterfrom
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When using ipmitool, the default server encryption algorithm for lanplus connections use SHA1. openBMC has dropped support for SHA1. This will result in ipmi connection errors due to "invalid authentication algorithm". Fortunately, a more trusted algorithm, like SHA256, can be used with the ipmitool option `-C <ciphersuite>`. This commit uses `-C 17` in all ipmitool commands to ensure that SHA256 is used instead of the deprecated SHA1. Signed-off-by: Nick Child <nick.child@ibm.com>
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Hello,
I was having trouble running tests due to all
ipmitoolcommands returning "invalid authentication algorithm". Apparently,ipmitooldefaults to algorithms that use SHA1. It seems that openBMC has recently stopped supporting SHA1 . I was able to fix my issue by using-C 17(AES with HMAC-SHA256) in myipmitoolcommands. I figure it is worth implementing across allipmitoolcommands since I cannot think of anyone who would rather use a different cipher-suite. If I am wrong, then I can work on making it a config option. Until then, I propose using HMAC-SHA256 for all ipmi connections. It looks likeipmitoolwill be changing their behavior in the coming release. In the meantime, I believe this issue will persist as more BMC's are updated to drop support for SHA1.Please let me know if there is anything I am missing or if I should take any further actions.
Thanks!