Android 9 - KeyStore exception android.os.ServiceSpecificException

Question

If I run this code on Android 9, I receive the follow exception:

private static KeyStore.PrivateKeyEntry getPrivateKeyEntry(String alias) {
        try {
            


        

Answer 1

I had the same problem retrieving an asymmetricKey from AndroidKeyStore

My solution based on Dr Glass answer to get keys is the following: (aliasKey is your alias string)

PublicKey:

val keyStore = KeyStore.getInstance("AndroidKeyStore")
keyStore.load(null)

val asymmetricPublicKey = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
    keyStore.getCertificate(aliasKey).publicKey
} else {
    val asymmetricKey = keyStore.getEntry(aliasKey, null) as KeyStore.PrivateKeyEntry
    asymmetricKey.certificate.publicKey
}

PrivateKey:

val keyStore = KeyStore.getInstance("AndroidKeyStore")
keyStore.load(null)

val asymmetricPrivateKey = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
    keyStore.getKey(aliasKey, null) as PrivateKey
} else {
    val asymmetricKey = keyStore.getEntry(aliasKey, null) as KeyStore.PrivateKeyEntry
    asymmetricKey.privateKey
}

and with this code I have no warning in the emulator and/or device with Android P