Reputation: 16450
I'm wondering if it's possible to recover a RSA public key that I have converted to byte array previously.
byte[] keyBytes = publicKey.getEncoded();
Thanks for the help.
Upvotes: 59
Views: 63166
Reputation: 375
Great answer. Thanks for the link. Just for complete, I found this Converted secret key into bytes, how to convert it back to secrect key?
SecretKey key2 = new SecretKeySpec(data, 0, data.length, "DES");
and just worked very well.
Upvotes: -1
Reputation: 459
For others who want to get private key instead of public key from byte array:
PrivateKey privateKey = KeyFactory.getInstance("RSA").generatePrivate(new PKCS8EncodedKeySpec(privateKeyBytes));
Upvotes: 46
Reputation: 597362
PublicKey publicKey =
KeyFactory.getInstance("RSA").generatePublic(new X509EncodedKeySpec(bytes));
For more info see this tutorial
Upvotes: 120