From 72896ce723f559fcc1774669b4643ffa6d42b110 Mon Sep 17 00:00:00 2001
From: Taras Smakula <tarassmakula@gmail.com>
Date: Fri, 17 May 2024 15:58:23 +0300
Subject: [PATCH] Create key store provider
---
.../circles/core/provider/KeyStoreProvider.kt | 37 +++++++++++++++++++
1 file changed, 37 insertions(+)
create mode 100644 core/src/main/java/org/futo/circles/core/provider/KeyStoreProvider.kt
diff --git a/core/src/main/java/org/futo/circles/core/provider/KeyStoreProvider.kt b/core/src/main/java/org/futo/circles/core/provider/KeyStoreProvider.kt
new file mode 100644
index 000000000..9582fa141
--- /dev/null
+++ b/core/src/main/java/org/futo/circles/core/provider/KeyStoreProvider.kt
@@ -0,0 +1,37 @@
+package org.futo.circles.core.provider
+
+import org.matrix.android.sdk.api.extensions.tryOrNull
+import java.security.KeyStore
+import javax.crypto.SecretKey
+import javax.crypto.spec.SecretKeySpec
+import javax.inject.Inject
+
+class KeyStoreProvider @Inject constructor() {
+
+ private val keyStore = KeyStore.getInstance("AndroidKeyStore")
+
+ fun storeBsSpekePrivateKey(keyBytes: ByteArray, keyId: String) {
+ storeKey(keyBytes, "$ORG_FUTO_SSSS_KEY_PREFIX.$keyId")
+ }
+
+ fun getBsSpekePrivateKey(keyId: String): ByteArray? = getKey("$ORG_FUTO_SSSS_KEY_PREFIX.$keyId")
+
+ private fun storeKey(keyBytes: ByteArray, alias: String) = tryOrNull {
+ val secretKey: SecretKey = SecretKeySpec(keyBytes, "AES")
+ keyStore.load(null)
+ val protectionParameter = KeyStore.PasswordProtection(null)
+ val secretKeyEntry = KeyStore.SecretKeyEntry(secretKey)
+ keyStore.setEntry(alias, secretKeyEntry, protectionParameter)
+ }
+
+
+ private fun getKey(alias: String): ByteArray? = tryOrNull {
+ keyStore.load(null)
+ val secretKey = keyStore.getKey(alias, null) as SecretKey
+ secretKey.encoded
+ }
+
+ companion object {
+ private const val ORG_FUTO_SSSS_KEY_PREFIX = "org.futo.ssss.key"
+ }
+}
--
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