My code using RSA on the front end： My code using RSA in the backend： PublicKey like this: PrivateKey like this: Bu-t, when i do the java code decryption, it reported such an error： How can i solve this problem ? Answer 1. You are decoding wrong. PEM format has a dash-BEGIN line identifying the type of data, a block

# Tag: rsa

## Java Decrypt with NodeJS Encrypt padding and oaepHash

I need to decrypt some information coming from an external service built with NodeJS. This service ask for a RSA (2048) public key in pem format in base64, in order to encrypt the information. I am creating the key pair in Java: The external service is encrypting the information as follows and is returning the bytes: I am trying to

## how to construct a java.security.interfaces.RSAPublicKey?

I have the following string, which I understand to be an RSA public key: MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAi+VPTFioJ3Dv/D6aEMqkiESiRkKBnISe3+…

## trying to convert Java RSA-PSS signature verification code (with SHA256 hash, SHA1 MGF hash) to Python

Here’s my Java code, which successfully verifies the signature, as expected. Signature sig = Signature.getInstance(“RSASSA-PSS”); PSSParameterSpec pssParams = new PSSParameterSpec( “…

## Encryption/Decryption with bouncycastle-java and RSAES-OAEP

I am not an expert with encryption, but i am trying to create an CMSEnvelopedDataGenerator with bouncycastle 1.67, where the session key is encrypted with RSAES-OAEP (1.2.840.113549.1.1.7) For now my …

## Rebuild of a RSA Private Key from modulus & exponent fails

I’m trying to rebuild a RSA keypair from modulus & private/public exponents. The conversion works correct for the public key but fails to private key when comparing the encoded private keys. When …