Open source replacement for sun.security.rsa.RSAPublicKeyImpl

Question

I get some warnings due to use of RSAPublicKeyImpl:

warning: RSAPublicKeyImpl is internal proprietary API and may be removed in a future release import sun.security.rsa.RSAPublicKeyImpl;

I have tried to find a replacement, but with no luck. What is the open source alternative for this class?

score 9 · Accepted Answer · edited May 23 '17 at 11:46

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class RSAPublicKeySpec supports at least a part of the implementation that you're looking for. Namely it can be created from the exponent and modulus as BigInteger.

You can use this to get an RSAPublicKey from an encoded byte[]:

RSAPublicKey publicKey = (RSAPublicKey)KeyFactory.getInstance("RSA").generatePublic(
        new X509EncodedKeySpec(bytes));

edited May 23 '17 at 11:46

Community

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answered Apr 14 '15 at 09:09

Artjom B.

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Just small note for PrivateKey - RSAPrivateKey privateKey = (RSAPrivateKey) KeyFactory.getInstance("RSA").generatePrivate(new PKCS8EncodedKeySpec(priv)); works in similar way – kulatamicuda May 28 '19 at 15:39

score 0 · Answer 2 · answered Apr 14 '15 at 08:52

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I am not sure, but try Bouncy castle library https://www.bouncycastle.org/java.html

Several mounth ago I also had same issue as you, and I successfully solved it by using AES cryptyng alghoritm

answered Apr 14 '15 at 08:52

user2858470

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Thanks, I saw bouncycastle implementation but I was trying to avoid that dependency – Eugenio Cuevas Apr 14 '15 at 09:48

Open source replacement for sun.security.rsa.RSAPublicKeyImpl

2 Answers2