Convert Pem to Ppk File Using PuTTYgen. PuTTYgen, part of the open source network networking client PuTTY, is a crucial generating tool to create public and private SSH keys for servers. The native file format of PuTTY is.ppk files. Additionally, the tool is used for SSH connectivity.
Java Cryptography - KeyGenerator - Java provides KeyGenerator class this class is used to generate secret keys and objects of this class are reusable.
Java provides the KeyPairGenerator class. This class is used to generate pairs of public and private keys. To generate keys using the KeyPairGenerator class, follow the steps given below.
Step 1: Create a KeyPairGenerator object
The KeyPairGenerator class provides getInstance() method which accepts a String variable representing the required key-generating algorithm and returns a KeyPairGenerator object that generates keys.
Create KeyPairGenerator object using the getInstance() Generate ssh key pair windows 7 download. method as shown below.
Step 2: Initialize the KeyPairGenerator object
The KeyPairGenerator class provides a method named initialize() this method is used to initialize the key pair generator. This method accepts an integer value representing the key size.
Initialize the KeyPairGenerator object created in the previous step using this method as shown below.
Step 3: Generate the KeyPairGenerator
You can generate the KeyPair using the generateKeyPair() method of the KeyPairGenerator class. Generate the key pair using this method as shown below.
Step 4: Get the private key/public key
You can get the private key from the generated KeyPair object using the getPrivate() method as shown below.
You can get the public key from the generated KeyPair object using the getPublic() method as shown below.
Example
Following example demonstrates the key generation of the secret key using the KeyPairGenerator class of the javax.crypto package.
Output
The above program generates the following output −
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright © 1993, 2018, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy. Java Key Code
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