NullPointerException when generating RSA keys with BouncyCastle?

You have to specify the bit length and the random number generator you want to use for the key (see the javadoc ): For generating a 2048 bit RSA key: rsaKeyPairGen. Init( new KeyGenerationParameters( new SecureRandom(), 2048 ) ).

You have to specify the bit length and the random number generator you want to use for the key (see the javadoc): For generating a 2048 bit RSA key: rsaKeyPairGen. Init( new KeyGenerationParameters( new SecureRandom(), 2048 ) ).

Almost there, your code is throwing: java.lang. ClassCastException: org.bouncycastle.crypto. KeyGenerationParameters cannot be cast to org.bouncycastle.crypto.params.

RSAKeyGenerationParameters – Tom Brito May 20 '10 at 19:36 and there is a lot of arguments to create a RSAKeyGenerationParameters.. I'll read about. – Tom Brito May 20 '10 at 19:38 it works with KeyPairGenerator. GetInstance("RSA", "BC"); Thanks anyway.

– Tom Brito May 20 '10 at 19:47.

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