【发布时间】:2020-07-02 15:13:12
【问题描述】:
我正在创建一个 KeyPair 并尝试使用它创建一个 X509Certificate(在 Android 上使用 BouncyCastle),但遇到以下错误:
java.lang.IllegalArgumentException: cannot produce certificate signature
at org.bouncycastle.cert.X509v3CertificateBuilder.build(Unknown Source:57)
这是我创建 KeyPair 的方式:
val kpg = KeyPairGenerator.getInstance(
KeyProperties.KEY_ALGORITHM_RSA, "AndroidKeyStore")
kpg.initialize(KeyGenParameterSpec.Builder(
"alias",
KeyProperties.PURPOSE_SIGN or KeyProperties.PURPOSE_VERIFY)
.setDigests(KeyProperties.DIGEST_SHA256,
KeyProperties.DIGEST_SHA512,
KeyProperties.DIGEST_NONE)
.setSignaturePaddings(KeyProperties.SIGNATURE_PADDING_RSA_PKCS1)
.setUserAuthenticationRequired(true)
.build())
return kpg.generateKeyPair()
以及我是如何尝试生成证书的:
// replace the default BC implementation, and use: implementation 'org.bouncycastle:bcpkix-jdk15on:1.64'
Security.removeProvider("BC")
val bc = BouncyCastleProvider()
Security.insertProviderAt(bc, 1)
val builder = JcaContentSignerBuilder("SHA256WithRSA")
builder.setProvider("AndroidKeyStoreBCWorkaround")
val certGen: X509v3CertificateBuilder = JcaX509v3CertificateBuilder(X500Name("name removed"),
BigInteger.valueOf(SecureRandom().nextLong()),
Date(),
Date(System.currentTimeMillis() + 365 * 24 * 60 * 60 * 1000),
X500Name("Name removed"),
keyPair.public)
val contentSigner: ContentSigner = builder.build(keyPair.private)
val certHolder = certGen.build(contentSigner) <- THE ERROR OCCURS HERE
val cert = JcaX509CertificateConverter().getCertificate(certHolder)
调用X509v3CertificateBuilder'build()方法时出现错误,但错误信息并没有真正的帮助。
编辑:这是完整的堆栈跟踪:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.app, PID: 31547
java.lang.IllegalArgumentException: cannot produce certificate signature
at org.bouncycastle.cert.X509v3CertificateBuilder.build(Unknown Source:57)
at com.example.app.Helper$Companion.createX509Certificate(Helper.kt:104)
at com.example.app.Presenter.getLocalKeyPair(Presenter.kt:123)
at com.example.app.Presenter$getKey$1.onComplete(Presenter.kt:109)
at com.example.app.Manager$getKey$1.onResponse(Manager.kt:30)
at retrofit2.DefaultCallAdapterFactory$ExecutorCallbackCall$1$1.run(DefaultCallAdapterFactory.java:83)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6626)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:811)
【问题讨论】:
-
发布完整的异常堆栈跟踪。
-
@PresidentJamesMoveonPolk 刚刚提交了包含完整堆栈跟踪的编辑。
-
您对错误消息感到失望是对的。出于某种原因,Bouncycastle 捕获了 IOException 并将其作为 IllegalArgumentException 重新抛出。我不反对将已检查的异常更改为未检查的异常,但至少用新异常包装原始异常。不幸的是,我不知道是什么导致了 ContentSigner 中的 IOException。我很想重新编译 Bouncycastle PKIX 库并通过包装底层 IOException 来改进此时抛出的异常。
标签: android kotlin bouncycastle key-pair