The recipient can calculate the encryption key for kind13 using their own private key and the sender's public key.
They only need to disclose this encryption key, not their own private key, to prove that the message was written by the sender, right?
I'm not a cryptography expert, so I'm not 100% certain.
keychat / Keychat
npub1h0…srwx8
2024-07-25 19:53:01
in reply to nevent1q…05qa
Author Public Key
npub1h0uj825jgcr9lzxyp37ehasuenq070707pj63je07n8mkcsg3u0qnsrwx8Published at
2024-07-25 19:53:01Event JSON
{
"id": "73c710c60630a2f4a4901cc08fbf261f0b997031d4840867b0d96f169a1800d1",
"pubkey": "bbf923aa9246065f88c40c7d9bf61cccc0ff3fcff065a8cb2ff4cfbb62088f1e",
"created_at": 1721929981,
"kind": 1,
"tags": [
[
"e",
"5dd49be932f9f1f37c49897a94c5d7451b86cb757d58a15f70e3a465d90ebe25",
"",
"root"
],
[
"e",
"78aaa8b5561e34c98b32e0b8f858195783bdb6c7ade2b314d0e07ebb1e2350fc",
"",
"reply"
],
[
"p",
"ca44013219b42914a54ad33b9219ecc3d1d02ab5c4677b798c1aa14067a203c9"
],
[
"p",
"04c915daefee38317fa734444acee390a8269fe5810b2241e5e6dd343dfbecc9"
],
[
"p",
"3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d"
],
[
"p",
"7adb520c3ac7cb6dc8253508df0ce1d975da49fefda9b5c956744a049d230ace"
]
],
"content": "The recipient can calculate the encryption key for kind13 using their own private key and the sender's public key. \n\nThey only need to disclose this encryption key, not their own private key, to prove that the message was written by the sender, right?\n\nI'm not a cryptography expert, so I'm not 100% certain.",
"sig": "2e1ec3defe5548679813bae9687273cb8239e3f719e9456374ccef57803a7bbde3d10fc1ac4a4701923bfbb2fd0e8768d65a71acca2ffca49c0744fb08b40354"
}