AES-GCM is.
If you're in a situation where you can have multiple keys (i.e. group messaging), you can send two plaintexts that encrypt to the same (ciphertext, tag).
https://github.com/soatok/gcm-exploit
Soatok Dreamseeker /
npub1wf…vw2m9
2024-05-17 16:25:49
in reply to nevent1q…mcnj
Author Public Key
npub1wfp0azvqh9n27j7zgnej54cr9xjs5x2efztwzurjdpj34ea5vw9qdvw2m9Published at
2024-05-17 16:25:49Event JSON
{
"id": "bc18c62ce40787321e2f855e2491ea7607451d2038ff9ea1adf9ff9e1c89cc4a",
"pubkey": "7242fe8980b966af4bc244f32a570329a50a19594896e1707268651ae7b4638a",
"created_at": 1715963149,
"kind": 1,
"tags": [
[
"e",
"5454e95cbe4aeceaf5561069099f1c329682bfe54d87648eead101a737b920bb",
"",
"root"
],
[
"proxy",
"https://furry.engineer/@soatok/112457360998067216",
"web"
],
[
"p",
"7242fe8980b966af4bc244f32a570329a50a19594896e1707268651ae7b4638a"
],
[
"p",
"fa2151f367b7a79bbd16adcc24cd9adc17b703d25d56c33211b349f755802e79"
],
[
"p",
"d41a7666ebcef50bb1b20943b5fea0e8147b4a035977ef4524049e5690ae735e"
],
[
"e",
"2342e2edd171259610a5dbad46d0650603e1846e3ba0d25d5b09d4ca5f69c266",
"",
"reply"
],
[
"p",
"44393ff8ca21edda8e7e510a2d8aef91e6b71ff38969a69b356215bfb42bac19"
],
[
"proxy",
"https://furry.engineer/users/soatok/statuses/112457360998067216",
"activitypub"
],
[
"L",
"pink.momostr"
],
[
"l",
"pink.momostr.activitypub:https://furry.engineer/users/soatok/statuses/112457360998067216",
"pink.momostr"
]
],
"content": "AES-GCM is.\n\nIf you're in a situation where you can have multiple keys (i.e. group messaging), you can send two plaintexts that encrypt to the same (ciphertext, tag).\n\nhttps://github.com/soatok/gcm-exploit",
"sig": "4409b7a6f5166b30254baa0c7b3a605376b48b915db1d5e98b25370bea6bfefd602db41a1677bc83311e14fb9e5c2a721ddea79948ffd8fb3f4aae80735c6c86"
}