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How to solve NoSuchAlgorithmException in java?

I am trying to decrypt data using RSA Algorithm. When decrypting, I get an exception. I.e,

java.security.NoSuchAlgorithmException: Cannot find any provider supporting RSA/ECB/PKCS5Padding at javax.crypto.Cipher.getInstance(DashoA13*..)

How to solve this exception? I am currently using java version "1.6.0_26" .

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2 answers

It's a typo. The correct RSA name with PKCS # 1 v1.5 is "RSA / ECB / PKCS1Padding". As a rule, it is a good idea to compare with the list of available algorithms. For instance. this question contains some ways to print such a list.

(And, of course, using OAEP instead of v1.5 firmware would be preferable, especially if your main field is not cryptography).

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The error means that the library you are using does not decrypt data, because there is no algorithm in Lib that decrypts RSA. You can use a library like Bouncy Calste or GNU Crypto to decrypt data using RSA. There are many examples of how to do this on the Internet.

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Source: https://habr.com/ru/post/927731/

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