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bitchat/bitchatTests/Nostr/Fixtures/AndroidLegacyPrivateEnvelopeB7f0b33dGenerator.patch.txt
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jackandGitHub e9275cb3d8 Relabel private Nostr envelopes honestly in docs; harden legacy envelope validation (#1480)
Split-out safe half of #1437 (the kind-1402 wire migration stays held for Android coordination). Docs (README/WHITEPAPER/PRIVACY_POLICY/privacy-assessment) now describe the actual proprietary DM construction — kind 1059 gift wrap carrying XChaCha20-Poly1305 with a 24-byte nonce, base64url v2: framing, and an HKDF that borrows the nip44-v2 info label but is not the NIP-44 key schedule — instead of claiming NIP-17/44/59.

Hardens the existing legacy inbound path: 64 KiB ciphertext cap before decode (~46x the largest producible legacy envelope), outer kind/recipient-tag/signature binding, tagless kind-13 seal binding, unsigned kind-14 inner binding, inner tags restricted to the two shapes deployed clients emit (verified against every historical iOS release and a fixture frozen from Android production), SecRandomCopyBytes failure now throws, non-UTF-8 plaintext now throws instead of returning empty. Adds frozen cross-platform fixtures with hash-pinned generators; interop-reviewed with no rejection surface for deployed clients.
2026-07-26 12:50:17 +02:00

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diff --git a/app/src/test/kotlin/com/bitchat/android/nostr/NostrProtocolTest.kt b/app/src/test/kotlin/com/bitchat/android/nostr/NostrProtocolTest.kt
index a5bd956..544a29b 100644
--- a/app/src/test/kotlin/com/bitchat/android/nostr/NostrProtocolTest.kt
+++ b/app/src/test/kotlin/com/bitchat/android/nostr/NostrProtocolTest.kt
@@ -10,0 +11,21 @@ class NostrProtocolTest {
+ @Test
+ fun emitCrossPlatformFixtures() {
+ val sender = NostrIdentity.fromPrivateKey(
+ "0000000000000000000000000000000000000000000000000000000000000001"
+ )
+ val recipient = NostrIdentity.fromPrivateKey(
+ "0000000000000000000000000000000000000000000000000000000000000002"
+ )
+ val giftWrap = NostrProtocol.createPrivateMessage(
+ content = "legacy fixture from Android b7f0b33d",
+ recipientPubkey = recipient.publicKeyHex,
+ senderIdentity = sender
+ ).single()
+
+ assertEquals(NostrKind.GIFT_WRAP, giftWrap.kind)
+ assertEquals(listOf(listOf("p", recipient.publicKeyHex)), giftWrap.tags)
+ println("BITCHAT_FIXTURE_EVENT=${gson.toJson(giftWrap)}")
+ println("BITCHAT_FIXTURE_RECIPIENT_PRIVATE_KEY=${recipient.privateKeyHex}")
+ println("BITCHAT_FIXTURE_SENDER_PUBLIC_KEY=${sender.publicKeyHex}")
+ }
+
@Test
fun decryptPrivateMessage_acceptsAuthenticatedSeal() {
val sender = NostrIdentity.generate()