Android Q spongy castle issue

[suriyaKalidoss123]

From API level 28, Google has restricted Security provider feature(bouncy castle issue). So alternatively we have added Security provider using spongy castle Now we can able to generate a keypair. But the key pair is not matching with the previous one. We can't get Private keyThis is we used previously,Old code api 27:

KeyPairGenerator keyGen = KeyPairGenerator.getInstance("EC", "BC");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
keyGen.initialize(256, random);
KeyFactory kaif = KeyFactory.getInstance("EC", "BC");
KeyPair pair = keyGen.generateKeyPair();
PrivateKey privateKey = pair.getPrivate();
PublicKey publicKey = pair.getPublic();

After the API level issue, we have removed "BC" and added Bouncy Castle manually by adding the below lineSecurity.insertProviderAt(BouncyCastleProvider(), 1); by implementing Bouncy castle in dependencies, implementation "com.madgag.spongycastle:core:1.58.0.0" implementation "com.madgag.spongycastle:prov:1.58.0.0" But the key pair is not matching with the previous one. New Code:api 28
Security.insertProviderAt(new org.spongycastle.jce.provider.BouncyCastleProvider(), 1);
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("EC");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
keyGen.initialize(256, random);
KeyFactory kaif = KeyFactory.getInstance("EC");
KeyPair pair = keyGen.generateKeyPair();
PrivateKey privateKey = pair.getPrivate();
PublicKey publicKey = pair.getPublic();

**Issue:
EC Private Key [f5:ac:ed:47:79:86:8b:7f:ee:54:ed:a3:37:1c:19:e7:8e:43:71:65]
X: 644540eb3c2dba45cb1085c4c063cd5f89d4514585f2108102a94faae8357a11
Y: 11087095e61da377e4a9fb9369a6074c3ba7cf472e0ed9bc57326d60d42de39

EC Public Key [f5:ac:ed:47:79:86:8b:7f:ee:54:ed:a3:37:1c:19:e7:8e:43:71:65]
X: 644540eb3c2dba45cb1085c4c063cd5f89d4514585f2108102a94faae8357a11
Y: 11087095e61da377e4a9fb9369a6074c3ba7cf472e0ed9bc57326d60d42de39

Expectation:
EC Private Key
S: c831bb8b5682e1960b14902b9f4d80b36eb481dabb9ce5b43fa4f8413e3a7198
EC Public Key
X: 1b6015f63670cee9058950e9ad553dbe4bc8f0f0d7b3b366ef7a284b916f3a71
Y: e562f35d5fe84e867525c5b26fd125e56582a1491adb2a21602a27f106b1d5ae**
Private key values differs
MyApplication.zip