Generating a KeyStore and TrustStore
1 0 To generate a Certificate Signing Request (CSR) you will first need to create a keystore for your Oracle system. Oracle systems such as Tomcat or Web Logic use keystores for its certificate web server configurations. If you lose your keystore file or your password to access it your SSL Certificate will no longer match. Sep 24, 2014 SSL Keytool List. Java Keytool is a key and certificate management utility that allows the users to cache the certificate and manage their own private or public key pairs and certificates. After that, you need to generate a Certificate Signing Request (CSR) and generate a certificate from it. How to create CSR with SANs using keytool. Ask Question Asked 4 years, 10 months ago. Active 2 years. When You generate CSR you need to specify -ext attribute again. Using key tool to make a CSR, how do I make a cert for tomcat ssl?
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:
Keytool Generate Csr From Keystore
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.
Note – Itis recommended to use the default KeyStore
where <c:JavaCAPS> isthe directory where Java CAPS is installed and <MyDomain> isthe name of your domain.
To Generate a KeyStore
- Perform the following command.
- Once prompted, enter the information required to generatea CSR. A sample key generation section follows.Generate client private ssh key from server download. If the KeyStore password is specified, then the password mustbe provided for the adapter.
- 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:orIf the certificate is chained with the CA’scertificate, perform step 4; otherwise, perform step 5 in the followinglist:
- 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.
- Perform the following command to import the CA’scertificate into the KeyStore for chaining with the client’scertificate.
- 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.
Note –
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.
Keytool Generate Key And Csr
To Create a New TrustStore
How To Generate Csr
- Perform the following command.
- 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.