Android 密钥库 - 无法生成密钥对

如何解决Android 密钥库 - 无法生成密钥对

object SecureStorage{
    private val keyStore = KeyStore.getInstance("AndroidKeyStore").apply { load(null) }
    fun putKey(token: String) {
        /** simply stores the token without any encryption */
         val kpg = KeyPairGenerator.getInstance(KeyProperties.KEY_ALGORITHM_RSA,keyStore.provider)`enter code here`
         val kpgSpec = KeyGenParameterSpec.Builder(token,KeyProperties.PURPOSE_DECRYPT).build()
         kpg.initialize(kpgSpec)
         kpg.generateKeyPair()
         }
        }

最初运行良好，但目前在控制台中引发错误

无法生成密钥对

同时检查异常内置代码

if (errorCode != KeyStore.NO_ERROR) {
            if (errorCode == KeyStore.HARDWARE_TYPE_UNAVAILABLE) {
                throw new StrongBoxUnavailableException("Failed to generate key pair");
            } else {
                throw new ProviderException(
                        "Failed to generate key pair",KeyStore.getKeyStoreException(errorCode));
            }
        }

从这里抛出异常