ECDSA implementation not found in 4.1.0-android

[WarSame]

I am getting an exception on Android when trying to generate a new light wallet using 4.1.0-android. This is code that previously used to work:

this.fileName = WalletUtils.generateLightNewWalletFile(longPassword, getWalletDir(context));

longPassword is a String, getWalletDir returns a directory to store all of the wallet files in.

W/System.err: java.security.NoSuchAlgorithmException: KeyPairGenerator ECDSA implementation not found
        at org.apache.harmony.security.fortress.Engine.notFound(Engine.java:190)
W/System.err:     at org.apache.harmony.security.fortress.Engine.getInstance(Engine.java:183)
W/System.err:     at java.security.KeyPairGenerator.getInstance(KeyPairGenerator.java:149)
W/System.err:     at java.security.KeyPairGenerator.getInstance(KeyPairGenerator.java:122)
        at org.web3j.crypto.Keys.createSecp256k1KeyPair(Keys.java:58)
        at org.web3j.crypto.Keys.createEcKeyPair(Keys.java:75)
        at org.web3j.crypto.Keys.createEcKeyPair(Keys.java:70)
        at org.web3j.crypto.WalletUtils.generateNewWalletFile(WalletUtils.java:61)
W/System.err:     at org.web3j.crypto.WalletUtils.generateLightNewWalletFile(WalletUtils.java:47)
        at com.example.graeme.beamitup.wallet.Wallet.<init>(Wallet.java:43)
W/System.err:     at com.example.graeme.beamitup.wallet.Wallet.<init>(Wallet.java:22)
        at com.example.graeme.beamitup.wallet.Wallet$WalletBuilder.build(Wallet.java:161)
        at com.example.graeme.beamitup.wallet.GenerateWalletTask.handleWalletCreation(GenerateWalletTask.java:74)
        at com.example.graeme.beamitup.wallet.GenerateWalletTask.doInBackground(GenerateWalletTask.java:51)
        at com.example.graeme.beamitup.wallet.GenerateWalletTask.doInBackground(GenerateWalletTask.java:18)
W/System.err:     at android.os.AsyncTask$2.call(AsyncTask.java:295)
        at java.util.concurrent.FutureTask.run(FutureTask.java:237)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
        at java.lang.Thread.run(Thread.java:818)

Googling seems to suggest that it may be due to Bouncy Castle implementing stunted versions of some algorithms for Android, but again, this previously worked on Android 3.4 and I believe web3j uses Spongy Castle to get around BC's problems.

I noticed @sanignucio mentioned this problem in the sample project which I cannot build the project to reproduce.

[kagile]

I am getting the same error, too. Is there any solution other than downgrading?

[narimanam]

I have the same problem. any plan to fix it?

[narimanam]

as i know the problem is that Spongy Castle changed to Bouncy Castle in version 4.1.0-android and android have problem with bouncy Castle.

[snazha-blkio]

Please take a look at #769, this contains some information regarding the crypto changes.

[WarSame]

@snazha-blkio Thanks for the information.
What follow up do we have? Did @serso test generating a wallet?

[snazha-blkio]

@WarSame there is a test for this functionality, please refer to: https://github.com/web3j/web3j/blob/release/4.1-android/core/src/test/java/org/web3j/crypto/WalletUtilsTest.java#L70

Are you able to run similar code to this in your app?

[serso]

Hey guys, the library was tested in this sample app: https://github.com/serso/web3a.
I think the only one thing you need to do is to replace the Android version of Bouncy Castle with the shipped one, see https://github.com/serso/web3a/blob/4dda74db948f8cbd9a79ba4b9ab456316ea52c4d/app/src/main/java/org/solovyev/android/web3a/App.java#L47.
Spongy Castle is not needed anymore as Bouncy Castle shipped with Android has its package name rewritten starting from Android API 14. See rtyley/spongycastle#34 for more details.

[serso]

@WarSame yes, wallet generation was tested: https://github.com/serso/web3a/blob/4dda74db948f8cbd9a79ba4b9ab456316ea52c4d/app/src/main/java/org/solovyev/android/web3a/MainActivity.java#L431.

[snazha-blkio]

Thanks @serso . @WarSame , can you please try the suggested change by @serso and report back?

[serso]

@WarSame, @kagile, @nariman-amani have you tried the proposed solution? Did it fix the problem?

[narimanam]

@serso yes, by adding bouncy castle provider in application, problem solved.
thanks.

[WarSame]

@serso @snazha-blkio Sorry for the delay. Thank you guys, that works! Adding the BC provider in the application onCreate resolved the issue.

[serso]

Great! I assume this issue can be closed then.

[Ayesha742]

I had the same problem and when I added the bouncy castle, the app crashed. Is there any way to fix this?

[serso]

@Ayesha742 providing a stack trace would be beneficial

[Ayesha742]

[serso]

The stack trace is clearly different. It doesn't even seem to be related to Bouncy Castle or web3j.

[Ayesha742]

Here it is:

[Ayesha742]

Hi, is there anything to fix this?

[serso]

@Ayesha742 what's the memory heap size you have on your phone/emulator? OOM exception might be caused by some other component in your app that eats too much RAM.

[kagile]

@serso There is no problem with RAM. It is occurring on my device as well with 6gb RAM and no other apps running. The problem is in the code.

[serso]

@kagile @Ayesha742 have you tried running https://github.com/serso/web3a?

[Ayesha742]

I created a new android project and used bouncy castle, now it is working

[huangShan-gitHub]

要怎么解决啊.........................