• Generating Public Key From Keystore Keytool In Windows 10
• Generating Public Key From Keystore Keytool In Windows 10

1. Java Keytool - Create Keystore. Generate a CSR based on the new keystore. Its high-scale Public Key Infrastructure (PKI) and identity solutions support the billions of services, devices, people and things comprising the Internet of Everything (IoE).
2. It shown how to create crt from jks keystore file in Chrome on Windows: go to the url in browser that's uses jks with the red line and there will be a lock symbol to the left by clicking on the not secure part, information dialog opens up.
3. May 25, 2015  Getting your SHA1 key is a little more complicated on a Windows system so, follow along with my steps here: 1) Open Command Prompt by pressing Start+R and typing cmd.exe. 2) Using Windows Explorer, find where your JDK directory is located (Usually Program Files.

Generating a KeyStore and TrustStore

Before you can create your CSR, you need to create your Java keystore. Your Java keystore contains your private key. Run the following command to create your 2048 bit Java keystore: keytool -genkey -alias myalias -keyalg RSA –keysize 2048 -keystore c:yoursite.keystore 2.

The following sections explain how to create both a KeyStoreand a TrustStore (or import a certificate into an existing TrustStoresuch as the default Logical Host TrustStore in the location:

where <c:JavaCAPS> isthe directory where Java CAPS is installed and <MyDomain> isthe name of your domain. The primary tool used is keytool, but openssl isalso used as a reference for generating pkcs12 KeyStores.

For more information on openssl andavailable downloads, visit the following web site:

http://www.openssl.org.

Creating a KeyStore in JKS Format

This section explains how to create a KeyStore using theJKS format as the database format for both the private key, and theassociated certificate or certificate chain. By default, as specifiedin the java.security file, keytool usesJKS as the format of the key and certificate databases (KeyStore andTrustStores). A CA must sign the certificate signing request (CSR).The CA is therefore trusted by the server-side application to whichthe Adapter is connected.

Itis recommended to use the default KeyStore Generate ssh keys terminal linux.

where <c:JavaCAPS> isthe directory where Java CAPS is installed and <MyDomain> isthe name of your domain.

To Generate a KeyStore

1. Perform the following command.

2. Once prompted, enter the information required to generatea CSR. A sample key generation section follows.

   If the KeyStore password is specified, then the password mustbe provided for the adapter.

3. Press RETURN when prompted for the key password (thisaction makes the key password the same as the KeyStore password).

   This operation creates a KeyStore file clientkeystore in the current working directory. You must specify a fullyqualified domain for the “first and last name” question.The reason for this use is that some CAs such as VeriSign expect thisproperties to be a fully qualified domain name.

   Thereare CAs that do not require the fully qualified domain, but it isrecommended to use the fully qualified domain name for the sake ofportability. All the other information given must be valid. If theinformation cannot be validated, a CA such as VeriSign does not signa generated CSR for this entry.

   This KeyStore containsan entry with an alias of client.This entry consists of the generated private key and information neededfor generating a CSR as follows:

   This command generates a certificate signing request which canbe provided to a CA for a certificate request. The file client.csr contains the CSR in PEM format.

   Some CA (one trusted by the web server to which the adapteris connecting) must sign the CSR. The CA generates a certificate forthe corresponding CSR and signs the certificate with its private key.For more information, visit the following web sites:

   or

   If the certificate is chained with the CA’scertificate, perform step 4; otherwise, perform step 5 in the followinglist:

4. Perform the following command.

   The command imports the certificate and assumes the client certificateis in the file client.cer and theCA’s certificate is in the file CARoot.cer.

5. Perform the following command to import the CA’scertificate into the KeyStore for chaining with the client’scertificate.

6. Perform the following command to import the client’scertificate signed by the CA whose certificate was imported in thepreceding step.

   The generated file clientkeystore containsthe client’s private key and the associated certificate chainused for client authentication and signing. The KeyStore and/or clientkeystore, can then be used as the adapter’sKeyStore.

Creating a KeyStore in PKCS12 Format

This section explains how to create a PKCS12 KeyStoreto work with JSSE. In a real working environment, a customer couldalready have an existing private key and certificate (signed by aknown CA). In this case, JKS format cannot be used, because it doesnot allow the user to import/export the private key through keytool. It is necessary to generate a PKCS12database consisting of the private key and its certificate.

The generated PKCS12 database can then be used as the Adapter’sKeyStore. The keytool utility iscurrently lacking the ability to write to a PKCS12 database. However,it can read from a PKCS12 database.

There are additional third-party tools available for generatingPKCS12 certificates, if you want to use a different tool.

For the following example, openssl isused to generate the PKCS12 KeyStore:

The existing key is in the file mykey.pem.txt in PEM format. The certificate is in mycertificate.pem.txt, which is also in PEM format. A textfile must be created which contains the key followed by the certificateas follows:

This command prompts the user for a password. The password isrequired. The KeyStore fails to work with JSSE without a password.This password must also be supplied as the password for the Adapter’sKeyStore password.

This command also uses the openssl pkcs12 commandto generate a PKCS12 KeyStore with the private key and certificate.The generated KeyStore is mykeystore.pkcs12 withan entry specified by the myAlias alias.This entry contains the private key and the certificate provided bythe -in argument. The noiter and nomaciter optionsmust be specified to allow the generated KeyStore to be recognizedproperly by JSSE.

Creating a TrustStore

For demonstration purposes, suppose you have the followingCAs that you trust: firstCA.cert, secondCA.cert,thirdCA.cert, located in the directory C:cascerts. You can create a new TrustStore consistingof these three trusted certificates.

Generating Public Key From Keystore Keytool In Windows 10

To Create a New TrustStore

1. Perform the following command.

2. Enter this command two more times, but for the secondand third entries, substitute secondCA and thirdCA for firstCA.Each of these command entries has the following purposes:

   • The first entry creates a KeyStore file named myTrustStore in the current working directoryand imports the firstCA certificateinto the TrustStore with an alias of firstCA.The format of myTrustStore is JKS.

   • For the second entry, substitute secondCA to import the secondCA certificateinto the TrustStore, myTrustStore.

   • For the third entry, substitute thirdCA to import the thirdCA certificateinto the TrustStore.

   Once completed, myTrustStore is available to be used as theTrustStore for the adapter.

Introduction

Generating Public Key From Keystore Keytool In Windows 10

This article covers the creation of a new Java keystore using Java keytool.

Process

You can watch the video below for a tutorial.

Or, you can check the step by step guidelines below.
1. Create a new keystore:
Open a command prompt in the same directory as Java keytool; alternatively, you may specify the full path of keytool in your command. Pay close attention to the alias you specify in this command as it will be needed later on.
keytool -genkey -alias mydomain -keyalg RSA -keystore KeyStore.jks -keysize 2048
2. Generate a CSR based on the new keystore:
keytool -certreq -alias mydomain -keystore KeyStore.jks -file mydomain.csr
Answer each question when prompted. Use the chart below to guide you through the process:

Confirm or reject the details by typing 'Yes' or 'No' and pressing Enter
Press Enter to use the same password as the keystore, alternatively specify a separate password and press enter.
You should now have a file called mydomain.csr which can be used to order or reissue a digital certificate from GlobalSign.
3. While the order processes, download the root & intermediate certificates for your order. You can identify the correct root & intermediate certificate based on hash algorithm and product type.
4. Import the root & intermediate certificates into your keystore. Import the root certificate first, followed by the intermediate. Make sure you specify the correct alias of 'root' and 'intermediate' respectively.
keytool -import -trustcacerts -alias root -file root.crt -keystore KeyStore.jks
keytool -import -trustcacerts -alias intermediate -file intermediate.crt -keystore KeyStore.jks
5. Download & import your new certificate
Download your new certificate; save it as mydomain.crt.
Use the same alias as the private key so it associates them together. The alias here must match the alias of the private key in the first command.
keytool -import -trustcacerts -alias mydomain -file mydomain.crt -keystore KeyStore.jks
The keystore is now complete and can be used for signing code or deploying on a Java based web server depending on the product you ordered.