Generate Public Key And Private Key Using Java
- Private Key Definition
- Generate Public Key And Private Key Using Java Key
- How To Generate Public Key And Private Key In Java
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Private Key Definition
The code snippet below show you how to use the JDK Security API to generate public and private keys. A private key can be use to sign a document and the public key is use to verify that the signature of the document is valid.
The API we use to generate the key pairs is in the java.security
package. That’s mean we have to import this package into our code. The class for generating the key pairs is KeyPairGenerator
. To get an instance of this class we have to call the getInstance()
methods by providing two parameters. The first parameter is algorithm and the second parameter is the provider.
After obtaining an instance of the key generator we have to initialize it. The initialize()
method takes two parameters, the key size and a source of randomness. We set the key size to 1024
and pass and instance of SecureRandom
.
Finally to generate the key pairs we call the generateKeyPair()
method of the KeyPairGenerator
class. This will return a KeyPair
object from where we can get the PrivateKey
and PublicKey
by calling the getPrivate()
and getPublic()
method.
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Generate Public Key And Private Key Using Java Key
Let’s see the code snippet below:
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How To Generate Public Key And Private Key In Java
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