On 2019-03-11, Nelson Bolyard <nboly...@silverspringnet.com> wrote: > NTPv3 supported MD5 and SHA1 Message Authentication Code (MACs) of > length 16 and 20 bytes respectively. RFC 5906 says that NTP V4 > supports any MAC, but offers no advice about how to send MACs that are > longer than 20 bytes, such as SHA256 MACs. > > Are longer MACs sent in their entirety? > Are they truncated to 20 bytes? or to 16 bytes?
The digests are truncated to 20 bytes in order to follow RFC 7822. -- Miroslav Lichvar _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
