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Switch key pair generation mechanism

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This commit is contained in:
nielsandriesse 2020-10-26 11:53:08 +11:00
parent 53a58acbd5
commit 43121607d0
2 changed files with 18 additions and 11 deletions
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2
build.gradle
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@ -145,6 +145,8 @@ dependencies {
implementation "org.whispersystems:signal-service-android:2.13.2" // Run ./gradlew install from session-android-service to install
implementation "org.whispersystems:curve25519-java:0.5.0"
// Remote:
implementation "com.goterl.lazycode:lazysodium-java:4.3.0"
implementation "net.java.dev.jna:jna:5.6.0"
implementation "com.google.protobuf:protobuf-java:2.5.0"
implementation "com.fasterxml.jackson.core:jackson-databind:2.9.8"
implementation "com.squareup.okhttp3:okhttp:3.12.1"

27
src/org/thoughtcrime/securesms/loki/activities/RegisterActivity.kt
View File

@ -15,6 +15,9 @@ import android.text.style.ClickableSpan
import android.text.style.StyleSpan
import android.view.View
import android.widget.Toast
import com.goterl.lazycode.lazysodium.LazySodiumJava
import com.goterl.lazycode.lazysodium.SodiumJava
import com.goterl.lazycode.lazysodium.utils.KeyPair
import kotlinx.android.synthetic.main.activity_register.*
import network.loki.messenger.R
import org.thoughtcrime.securesms.BaseActionBarActivity
@ -28,16 +31,15 @@ import org.thoughtcrime.securesms.util.Base64
import org.thoughtcrime.securesms.util.Hex
import org.thoughtcrime.securesms.util.TextSecurePreferences
import org.whispersystems.curve25519.Curve25519
import org.whispersystems.libsignal.ecc.Curve
import org.whispersystems.libsignal.ecc.ECKeyPair
import org.whispersystems.libsignal.ecc.*
import org.whispersystems.libsignal.util.KeyHelper
import org.whispersystems.signalservice.loki.utilities.hexEncodedPublicKey
import java.io.File
import java.io.FileOutputStream
class RegisterActivity : BaseActionBarActivity() {
private val sodium = LazySodiumJava(SodiumJava())
private var seed: ByteArray? = null
private var keyPair: ECKeyPair? = null
private var ed25519KeyPair: KeyPair? = null
private var x25519KeyPair: ECKeyPair? = null
set(value) { field = value; updatePublicKeyTextView() }
// region Lifecycle
@ -72,7 +74,10 @@ class RegisterActivity : BaseActionBarActivity() {
private fun updateKeyPair() {
val seedCandidate = Curve25519.getInstance(Curve25519.BEST).generateSeed(16)
try {
this.keyPair = Curve.generateKeyPair(seedCandidate + seedCandidate) // Validate the seed
val padding = ByteArray(16) { 0 }
ed25519KeyPair = sodium.cryptoSignSeedKeypair(seedCandidate + padding)
val x25519KeyPair = sodium.convertKeyPairEd25519ToCurve25519(ed25519KeyPair)
this.x25519KeyPair = ECKeyPair(DjbECPublicKey(x25519KeyPair.publicKey.asBytes), DjbECPrivateKey(x25519KeyPair.secretKey.asBytes))
} catch (exception: Exception) {
return updateKeyPair()
}
@ -80,7 +85,7 @@ class RegisterActivity : BaseActionBarActivity() {
}
private fun updatePublicKeyTextView() {
val hexEncodedPublicKey = keyPair!!.hexEncodedPublicKey
val hexEncodedPublicKey = x25519KeyPair!!.hexEncodedPublicKey
val characterCount = hexEncodedPublicKey.count()
var count = 0
val limit = 32
@ -112,9 +117,9 @@ class RegisterActivity : BaseActionBarActivity() {
// region Interaction
private fun register() {
IdentityKeyUtil.save(this, IdentityKeyUtil.lokiSeedKey, Hex.toStringCondensed(seed))
IdentityKeyUtil.save(this, IdentityKeyUtil.IDENTITY_PUBLIC_KEY_PREF, Base64.encodeBytes(keyPair!!.publicKey.serialize()))
IdentityKeyUtil.save(this, IdentityKeyUtil.IDENTITY_PRIVATE_KEY_PREF, Base64.encodeBytes(keyPair!!.privateKey.serialize()))
val userHexEncodedPublicKey = keyPair!!.hexEncodedPublicKey
IdentityKeyUtil.save(this, IdentityKeyUtil.IDENTITY_PUBLIC_KEY_PREF, Base64.encodeBytes(x25519KeyPair!!.publicKey.serialize()))
IdentityKeyUtil.save(this, IdentityKeyUtil.IDENTITY_PRIVATE_KEY_PREF, Base64.encodeBytes(x25519KeyPair!!.privateKey.serialize()))
val userHexEncodedPublicKey = x25519KeyPair!!.hexEncodedPublicKey
val registrationID = KeyHelper.generateRegistrationId(false)
TextSecurePreferences.setLocalRegistrationId(this, registrationID)
DatabaseFactory.getIdentityDatabase(this).saveIdentity(Address.fromSerialized(userHexEncodedPublicKey),
@ -129,7 +134,7 @@ class RegisterActivity : BaseActionBarActivity() {
private fun copyPublicKey() {
val clipboard = getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
val clip = ClipData.newPlainText("Session ID", keyPair!!.hexEncodedPublicKey)
val clip = ClipData.newPlainText("Session ID", x25519KeyPair!!.hexEncodedPublicKey)
clipboard.setPrimaryClip(clip)
Toast.makeText(this, R.string.copied_to_clipboard, Toast.LENGTH_SHORT).show()
}