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Add debug logging to verify public key derivation

This commit is contained in:
James (ClawdBot) 2026-01-28 18:57:50 +00:00
parent 94f1da3ff1
commit 661a668169
1 changed files with 10 additions and 1 deletions
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11
app/src/main/java/com/inou/clawdnode/security/DeviceIdentity.kt
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@ -97,10 +97,19 @@ class DeviceIdentity(context: Context) {
?: throw IllegalStateException("No private key available") ?: throw IllegalStateException("No private key available")
val privateKeyBytes = base64UrlDecode(privateKeyBase64) val privateKeyBytes = base64UrlDecode(privateKeyBase64)
// Create EdDSA private key // Create EdDSA private key from seed
val privateKeySpec = EdDSAPrivateKeySpec(privateKeyBytes, ed25519Spec) val privateKeySpec = EdDSAPrivateKeySpec(privateKeyBytes, ed25519Spec)
val privateKey = EdDSAPrivateKey(privateKeySpec) val privateKey = EdDSAPrivateKey(privateKeySpec)
// Verify the derived public key matches stored public key
val derivedPubKey = privateKey.abyte
val storedPubKeyBase64 = prefs.getString(keyPublic, null)
val storedPubKey = storedPubKeyBase64?.let { base64UrlDecode(it) }
Log.d(tag, "Stored pubkey: ${storedPubKeyBase64?.take(20)}...")
Log.d(tag, "Derived pubkey: ${base64UrlEncode(derivedPubKey).take(20)}...")
Log.d(tag, "Keys match: ${derivedPubKey.contentEquals(storedPubKey)}")
// Sign the payload using standard Ed25519 (not prehashed Ed25519ph) // Sign the payload using standard Ed25519 (not prehashed Ed25519ph)
val signature = EdDSAEngine().apply { val signature = EdDSAEngine().apply {
initSign(privateKey) initSign(privateKey)