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Avoid sending To/CC headers in verified groups #1032

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hpk42 opened this issue Dec 14, 2019 · 2 comments
Closed

Avoid sending To/CC headers in verified groups #1032

hpk42 opened this issue Dec 14, 2019 · 2 comments

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@hpk42
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@hpk42 hpk42 commented Dec 14, 2019

As verified groups are always e2e-encrypted, we should be easily able to avoid unencrypted To/CC headers and just put them into the encrypted section. Single mail providers would then not get a complete list of all e-mail addresses in a group.

@hpk42 hpk42 added the security label Dec 14, 2019
@link2xt link2xt added this to step 1️⃣: finished. in protect chats 🛡️ via automation May 1, 2021
@link2xt link2xt moved this from step 1️⃣: finished. to step 2️⃣: to be done. in protect chats 🛡️ May 1, 2021
@r10s
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@r10s r10s commented Sep 5, 2021

sidenote: there is now download-on-demand, #2631, that relies at least partly on these headers to assign messages to the correct group when only downloading the headers (and not decrypting at all as the body is not downloaded).

so, when altering/removing headers, we should make sure, assignment of messages to correct chats is still working somehow.

maybe we should not see that as a requirement for "protect chats project", at least not as a initial implementation.

@r10s r10s removed this from step 2️⃣: to be done. in protect chats 🛡️ Oct 29, 2021
@r10s r10s added this to Closed PRs and Issues in Project Resurrection via automation Mar 7, 2022
@r10s
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@r10s r10s commented Mar 7, 2022

moving stale issue to resurrection due to march2022 cleanup.

@r10s r10s closed this as completed Mar 7, 2022
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