Hello radio friends.
If you own an Anytone D878UVII DMR radio (because it supports AES encryption in DMR mode but don't do that because FCC says so), you need to check your firmware and update it to v3.03 if it isn't already.
Previous versions used a zero-value IV at the start of all transmissions. I don't know the precise mode of AES used by Anytone, Motorola, et al (not specified, though soon I'll be digging), but having a predictable IV is never a good thing.
Matt Hamilton /
npub1gx…74lmh
2024-05-12 02:06:11
Author Public Key
npub1gx2gqstph00y56zgeshhme8dyt4kk4tgt0dypqdk49qwravk37jse74lmhPublished at
2024-05-12 02:06:11Event JSON
{
"id": "958b53a36a6e759f3cc21f705ad6a9bc181063c2a863409b43ec9d0a9a09311c",
"pubkey": "4194804161bbde4a6848cc2f7de4ed22eb6b55685bda4081b6a940e1f5968fa5",
"created_at": 1715479571,
"kind": 1,
"tags": [
[
"proxy",
"https://noauthority.social/@eriner/112425669207022257",
"web"
],
[
"proxy",
"https://noauthority.social/users/eriner/statuses/112425669207022257",
"activitypub"
],
[
"L",
"pink.momostr"
],
[
"l",
"pink.momostr.activitypub:https://noauthority.social/users/eriner/statuses/112425669207022257",
"pink.momostr"
]
],
"content": "Hello radio friends.\n\nIf you own an Anytone D878UVII DMR radio (because it supports AES encryption in DMR mode but don't do that because FCC says so), you need to check your firmware and update it to v3.03 if it isn't already.\n\nPrevious versions used a zero-value IV at the start of all transmissions. I don't know the precise mode of AES used by Anytone, Motorola, et al (not specified, though soon I'll be digging), but having a predictable IV is never a good thing.",
"sig": "717c9374d6d38b37b3985d533fe50eb14453c4e513453226d2b287b2ac00540c719b7ebd88da5a47e608106d1e56caf876d80df45f68e8d07283c033eeabd01d"
}