找不到签名SHA256WITHECDSA实现
我在一个项目上工作，创建一个PKI来获得一个Android的证书申请。
现在我正在使用海绵城堡，它在安卓5和更高版本上工作，但在4.X上它向我展示了这一点：
Signature SHA256WITHECDSA implementation not found
java.security.NoSuchAlgorithmException: Signature SHA256WITHECDSA implementation not found
at org.apache.harmony.security.fortress.Engine.notFound(Engine.java:177)
at org.apache.harmony.security.fortress.Engine.getInstance(Engine.java:170)
at java.security.Signature.getSignatureInstance(Signature.java:178)
at java.security.Signature.getInstance(Signature.java:146)
at org.spongycastle.jce.PKCS10CertificationRequest.<init>(PKCS10CertificationRequest.java:363)
at org.spongycastle.jce.PKCS10CertificationRequest.<init>(PKCS10CertificationRequest.java:248)
at com.unipagos.app.enrollmentprocess.EnrollmentStep5FragmentActivity.createPKI(EnrollmentStep5FragmentActivity.java:199)
at com.unipagos.app.enrollmentprocess.EnrollmentStep5FragmentActivity.onPostCreate(EnrollmentStep5FragmentActivity.java:145)
at android.app.Instrumentation.callActivityOnPostCreate(Instrumentation.java:1157)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2075)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2117)
at android.app.ActivityThread.access$700(ActivityThread.java:134)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1218)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4867)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1007)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:774)
at dalvik.system.NativeStart.main(Native Method)创建证书请求的代码如下：
public String createPKI(String mdnString) {
try {
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("EC");
//KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("ECDSA", "SC");
ECGenParameterSpec ecGenSpec = new ECGenParameterSpec("prime256v1");
keyPairGenerator.initialize(ecGenSpec, new SecureRandom());
KeyPair kp = keyPairGenerator.generateKeyPair();
publicKey = kp.getPublic();
privateKey = kp.getPrivate();
PKCS10CertificationRequest kpGen = new PKCS10CertificationRequest("SHA256WITHECDSA", new X509Name(String.format("UID=%s", mdnString)), publicKey, null, privateKey);
String certRequest = Base64.encodeToString(kpGen.getEncoded(), Base64.DEFAULT);
certRequest = certRequest.replace("\n", "");
return certRequest;
} catch(Exception e) {
if (Constants.DEBUG) {
Log.v("Exception", e.getMessage());
}
e.printStackTrace();
return null;
}
}我使用的海绵城堡版本是: sc-light-jdk15on-1.47.0.2.jar和scprov-jdk15on-1.47.0.2.jar
对此有什么想法吗？
回答 2
Stack Overflow用户
发布于 2018-03-03 17:57:10
添加SpongyCastle提供程序了吗？
static {Security.addProvider(新org.spongycastle.jce.provider.BouncyCastleProvider());) }
此外，您还必须使用此KeyPairGenerator实例：
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("EC"，"SC")；
为了确保您选择SpongyCastle作为安全提供程序。
Stack Overflow用户
发布于 2021-02-19 03:05:28
这是因为默认的弹跳城堡提供商添加了Android操作系统的一部分。它可以使用下面提到的任何一种方法来解决。
方法1
用SpongyCastleProvider替换默认的OS级别Bouncy castle提供程序。
//Remove the existing bouncy castle provider initiated part of the Android OS using it's name.
Security.removeProvider(BouncyCastleProvider.PROVIDER_NAME);
//Add bouncy castle provider from library
Security.addProvider(org.spongycastle.jce.provider.BouncyCastleProvider());方法2
而且还有另外一个选择。通过添加getInstance()方法的provider实例部分来获取KeyPairGenerator实例，如下所示。
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("ECDSA", new org.spongycastle.jce.provider.BouncyCastleProvider());Bouncy castle库也是如此。如果你的目标是Android3.0(API11级)以上的应用程序，建议使用BouncyCastle库而不是SpongyCastle作为suggested by SpongyCastle library author，并在org.bouncycastle.jce.provider.BouncyCastleProvider()中遵循上面提到的任何一种方法。在应用gradle中使用以下依赖项来包含bouncy castle库。
// Bouncy castle
implementation "org.bouncycastle:bcprov-jdk15to18:1.68"请参考以下链接，以获取bouncy castle provider的最新版本。https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk15to18
https://stackoverflow.com/questions/49078962
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