android - cipher.doFinal 上的 AEADBadTagException

Question

我按照此指南（ https://developer.android.com/codelabs/biometric-login#2 ）集成了生物识别身份验证。问题是我收到了这个错误

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:502)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
     Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930) 
     Caused by: javax.crypto.AEADBadTagException
        at android.security.keystore.AndroidKeyStoreCipherSpiBase.engineDoFinal(AndroidKeyStoreCipherSpiBase.java:517)
        at javax.crypto.Cipher.doFinal(Cipher.java:2055)
        at com.myApp.myAppName.service.CryptographyManagerImpl.decryptData(CryptographyManager.kt:89)

CryptographyManager 第 89 行是

override fun decryptData(ciphertext: ByteArray, cipher: Cipher): String {
        val plaintext = cipher.doFinal(ciphertext)
        return String(plaintext, Charset.forName("UTF-8"))
    }

我加密数据的方式是

 override fun encryptData(plaintext: String, cipher: Cipher): CiphertextWrapper {
        val ciphertext = cipher.doFinal(plaintext.toByteArray(Charset.forName("UTF-8")))
        return CiphertextWrapper(ciphertext, cipher.iv)
    }

Cipher是这样初始化的

private val ENCRYPTION_BLOCK_MODE = KeyProperties.BLOCK_MODE_GCM
private val ENCRYPTION_PADDING = KeyProperties.ENCRYPTION_PADDING_NONE
private val ENCRYPTION_ALGORITHM = KeyProperties.KEY_ALGORITHM_AES

private fun getCipher(): Cipher {
       val transformation = "$ENCRYPTION_ALGORITHM/$ENCRYPTION_BLOCK_MODE/$ENCRYPTION_PADDING"
       return Cipher.getInstance(transformation)
   }

我该如何解决这个问题？

标签： androidkotlinencryptionandroid-biometric-prompt