KeyPairGenerator.kt

KeyPairGenerator.kt

KeyPairGenerator.getInstance(KeyProperties.KEY_ALGORITHM_RSA, "AndroidKeyStore").apply {
    val certBuilder = KeyGenParameterSpec.Builder(alias, KeyProperties.PURPOSE_ENCRYPT)
        .setKeyValidityStart(keyValidityStart)
        .setKeyValidityEnd(keyValidityEnd)
        .setCertificateSerialNumber(BigInteger.valueOf(1L))
        .setCertificateSubject(X500Principal("CN=MyCompany"))
        .setUserAuthenticationRequired(true)
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
        initialize(
            certBuilder
                .setIsStrongBoxBacked(true) 
                .build()
        )
    } else {
        initialize(certBuilder.build())
    }
}.also {
    val keyPair = it.generateKeyPair()
    //Continue here
}