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Merge 7f17f1fafa into 8f9bb4dc5b

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Stanislav Dmitrenko 2025-06-27 17:32:26 +00:00 • committed by GitHub
commit 8cfb9bb698
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1 changed files with 20 additions and 9 deletions
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29
apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/platform/Cryptor.android.kt
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@ -1,8 +1,8 @@
package chat.simplex.common.platform
import android.annotation.SuppressLint
import android.security.keystore.KeyGenParameterSpec
import android.security.keystore.KeyProperties
import android.os.Build
import android.security.keystore.*
import chat.simplex.common.views.helpers.AlertManager
import chat.simplex.common.views.helpers.generalGetString
import chat.simplex.res.MR
@ -71,13 +71,24 @@ internal class Cryptor: CryptorInterface {
private fun createSecretKey(alias: String): SecretKey? {
if (keyStore.containsAlias(alias)) return getSecretKey(alias)
val keyGenerator: KeyGenerator = KeyGenerator.getInstance(KEY_ALGORITHM, "AndroidKeyStore")
keyGenerator.init(
KeyGenParameterSpec.Builder(alias, KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT)
.setBlockModes(BLOCK_MODE)
.setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE)
.build()
)
return keyGenerator.generateKey()
val builder = KeyGenParameterSpec.Builder(alias, KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT)
.setBlockModes(BLOCK_MODE)
.setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE)
return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
try {
keyGenerator.init(builder.setIsStrongBoxBacked(true).build())
val key = keyGenerator.generateKey()
Log.w(TAG, "StrongBox support is present")
key
} catch (e: StrongBoxUnavailableException) {
Log.w(TAG, "No StrongBox support")
keyGenerator.init(builder.setIsStrongBoxBacked(false).build())
keyGenerator.generateKey()
}
} else {
keyGenerator.init(builder.build())
keyGenerator.generateKey()
}
}
private fun getSecretKey(alias: String): SecretKey? {