Java AndroidKeyStore KeyPairGenerator在少量设备上崩溃

我的应用程序只针对Android 6.0+。在我的应用程序中，我在

AndroidKeyStore

中生成一个RSA密钥，其中包含以下内容：

KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "AndroidKeyStore");
kpg.initialize(new KeyGenParameterSpec.Builder(
    "myKey", KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
    .setCertificateSubject(new X500Principal("CN=myKey"))
    .setDigests("SHA-1")
    .setEncryptionPaddings("OAEPPadding")
    .build());

KeyPair kp = kpg.generateKeyPair();

java.security.ProviderException: Failed to load generated key pair from keystore
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:518)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.generateKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:470)
at java.security.KeyPairGenerator$Delegate.generateKeyPair(KeyPairGenerator.java:699)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.n_onCreate(Native Method)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.onCreate(MainApplication.java:34)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1025)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5448)
at android.app.ActivityThread.-wrap2(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1564)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6186)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
Caused by: java.security.UnrecoverableKeyException: Failed to obtain X.509 form of public key
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:230)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(AndroidKeyStoreProvider.java:259)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:509)
... 14 more
Caused by: android.security.KeyStoreException: -22
at android.security.KeyStore.getKeyStoreException(KeyStore.java:676)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:231)
... 16 more


java.security.UnrecoverableKeyException: Failed to obtain X.509 form of public key
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:230)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(AndroidKeyStoreProvider.java:259)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:509)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.generateKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:470)
at java.security.KeyPairGenerator$Delegate.generateKeyPair(KeyPairGenerator.java:699)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.n_onCreate(Native Method)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.onCreate(MainApplication.java:34)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1025)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5448)
at android.app.ActivityThread.-wrap2(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1564)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6186)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
Caused by: android.security.KeyStoreException: -22
at android.security.KeyStore.getKeyStoreException(KeyStore.java:676)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:231)
... 16 more


android.security.KeyStoreException: -22
at android.security.KeyStore.getKeyStoreException(KeyStore.java:676)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:231)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(AndroidKeyStoreProvider.java:259)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:509)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.generateKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:470)
at java.security.KeyPairGenerator$Delegate.generateKeyPair(KeyPairGenerator.java:699)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.n_onCreate(Native Method)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.onCreate(MainApplication.java:34)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1025)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5448)
at android.app.ActivityThread.-wrap2(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1564)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6186)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)

这在我们测试过的20多台设备和近100%的用户上运行良好

但是，当执行

kpg.generateKeyPair（）

时，该应用程序会因少数用户而崩溃：

KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "AndroidKeyStore");
kpg.initialize(new KeyGenParameterSpec.Builder(
    "myKey", KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
    .setCertificateSubject(new X500Principal("CN=myKey"))
    .setDigests("SHA-1")
    .setEncryptionPaddings("OAEPPadding")
    .build());

KeyPair kp = kpg.generateKeyPair();

java.security.ProviderException: Failed to load generated key pair from keystore
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:518)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.generateKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:470)
at java.security.KeyPairGenerator$Delegate.generateKeyPair(KeyPairGenerator.java:699)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.n_onCreate(Native Method)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.onCreate(MainApplication.java:34)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1025)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5448)
at android.app.ActivityThread.-wrap2(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1564)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6186)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
Caused by: java.security.UnrecoverableKeyException: Failed to obtain X.509 form of public key
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:230)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(AndroidKeyStoreProvider.java:259)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:509)
... 14 more
Caused by: android.security.KeyStoreException: -22
at android.security.KeyStore.getKeyStoreException(KeyStore.java:676)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:231)
... 16 more


java.security.UnrecoverableKeyException: Failed to obtain X.509 form of public key
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:230)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(AndroidKeyStoreProvider.java:259)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:509)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.generateKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:470)
at java.security.KeyPairGenerator$Delegate.generateKeyPair(KeyPairGenerator.java:699)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.n_onCreate(Native Method)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.onCreate(MainApplication.java:34)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1025)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5448)
at android.app.ActivityThread.-wrap2(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1564)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6186)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
Caused by: android.security.KeyStoreException: -22
at android.security.KeyStore.getKeyStoreException(KeyStore.java:676)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:231)
... 16 more


android.security.KeyStoreException: -22
at android.security.KeyStore.getKeyStoreException(KeyStore.java:676)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStorePublicKeyFromKeystore(AndroidKeyStoreProvider.java:231)
at android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(AndroidKeyStoreProvider.java:259)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.loadKeystoreKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:509)
at android.security.keystore.AndroidKeyStoreKeyPairGeneratorSpi.generateKeyPair(AndroidKeyStoreKeyPairGeneratorSpi.java:470)
at java.security.KeyPairGenerator$Delegate.generateKeyPair(KeyPairGenerator.java:699)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.n_onCreate(Native Method)
at md5fb78b69c5ddbc157f4db38fd738139a6.MainApplication.onCreate(MainApplication.java:34)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1025)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5448)
at android.app.ActivityThread.-wrap2(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1564)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6186)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)

关于这个

未能获得X.509形式的公钥

错误，我在互联网上只能找到一些没有真正解决方案的文章。见：

我们收到的少数报告来自安卓7.1上使用OnePlus设备的用户，安卓7.1也是上述文章中提到的设备之一，但肯定还有其他设备受到影响

• 为什么会这样
• 有什么解决办法吗

---

我认为-22对应于KeyMasterDefsAny中的“KM\u ERROR\u KEY\u EXPORT\u OPTIONS\u INVALID=-22”，关于如何解决这个问题，我有很多想法？似乎源于这句话：@kspearrin我实际上是受影响的用户之一，运行一加二。我的TP链接应用程序“Kasa”崩溃在我身上，这正是堆栈跟踪。APK的反编译指向看起来像您的代码。你有什么新消息吗？@Fredeff不幸的是，我一直没能解决这个问题。我放弃了。我的解决方案是放弃使用非对称密钥对，转而使用对称密钥（在Android 6.0+上）。幸运的是，我的解决方案考虑到了这一点，但我意识到大多数情况下情况并非如此。