Rsa Key Pair Generation Java

Java Code Examples for java.security.KeyPairGenerator. /. Generate a new RSA key pair entry in the Android Keystore by. using the KeyPairGenerator API. This creates both a KeyPair. and a self-signed certificate, both with the same alias./ private void generateAuthenticationKey throws GeneralSecurityException KeyPairGenerator kpg. Java keytool stores the keys and certificates in what is called a keystore. The Java keystore is implemented as a file by default. It protects private keys with a password. Keytool also enables. A key pair is generated by using the KeyPairGenerator class. In this example you will generate a public/private key pair for the Digital Signature Algorithm (DSA). You will generate keys with a 1024-bit length. Generating a key pair requires several steps: Create a Key Pair Generator. The first step is to get a key-pair generator object for generating keys for the DSA signature algorithm.

• Rsa Key Generation

This chapter demonstrates how to generate an RSA based OpenPGP key pair with OpenPGP Library for Java.

For honor cd key generator. When we create an OpenPGP key pair, a few parameters must be passed. These include:

• Encryption key size in bytes (recommended between 1024 and 3072)
• User ID
• key algorithm (RSA or ELGAMAL)
• private key password
• list of preferred compression algorithms
• list of preferred signature hash algorithms
• list of preferred symmetric encryption algorithms
• key expiration date (optional)

One note regarding the naming convention for the User ID parameter. The original PGP(r) software is delimiting the email in the User ID with < and > like : “Richard C. <richard.c@site.com>”

An overloaded method exists that accepts key expiration date as a last parameter.

Table of Contents

1. Key generation with a KeyStore

2. Key generation directly

3. Exception handling

1. Key generation example

After the key pair is generated usually we will export the public key and send it to our partners.

Below is a screenshot of the generated key properties when we open it with PGP (r) 10:

2. Key generation directly

We can avoid the use of a KeyStore class and generate a key pair in the memory in a PGPKeyPair object. In that case we also have to export it afterwards.

3. Exception Handling

The key pair generation methods simply throw com.didisoft.pgp.PGPException in case the key generation fails.

Summary

Rsa Key Generation

This chapter demonstrated how to generate an RSA OpenPGP key pair with DidiSoft OpenPGP Library for Java.