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Welcome to the Stark Infra Java SDK! This tool is made for Java developers who want to easily integrate with our API. This SDK version is compatible with the Stark Infra API v2.

There is a newer version: 0.11.2

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package com.starkinfra;

import com.starkbank.ellipticcurve.PrivateKey;

import java.io.File;
import java.io.PrintWriter;
import java.io.FileNotFoundException;


public final class Key {
    public final String privatePem;
    public final String publicPem;

    public Key(String privatePem) {
        PrivateKey privateKey = PrivateKey.fromPem(privatePem);
        this.privatePem = privatePem;
        this.publicPem = privateKey.publicKey().toPem();
    }

    /**
     * Create a key pair
     * 
     * Generates a secp256k1 ECDSA private/public key pair to be used in the API authentications
     * 

     * Return:
     * @return new Key object
     */
    public static Key create() {
        return new Key((new PrivateKey()).toPem());
    }

    /**
     * Create a key pair
     * 

     * Generates a secp256k1 ECDSA private/public key pair to be used in the API authentications
     * 

     * Parameters:
     * @param savePath [string]: path to save the keys .pem files. No files will be saved if this parameter isn't provided
     * 
     * Return:
     * @return new Key object
     * @throws FileNotFoundException error when the savePath is not found
     */
    public static Key create(String savePath) throws FileNotFoundException {
        Key key = Key.create();
        File directory = new File(savePath);
        if (! directory.exists()){
            directory.mkdirs();
        }
        try (PrintWriter out = new PrintWriter(new File(savePath, "privateKey.pem"))) {
            out.println(key.privatePem);
        }
        try (PrintWriter out = new PrintWriter(new File(savePath, "publicKey.pem"))) {
            out.println(key.publicPem);
        }
        return key;
    }
}