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I have a problem with the creation of keystore from cer files.

I have three files:

  1. NameCertyfikat2015.cer
  2. NameIntermediateCA.cer
  3. NamePrivateKey.txt

And I want to get jks Keystore file. How can I do this using keytool? I need that file for wildfly container.

My NamePrivateKey.txt start with:

-----BEGIN RSA PRIVATE KEY-----
pkamb
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luckybastard
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  • Possible duplicate of [How can i create keystore from an existing certificate (abc.crt) and abc.key files?](https://stackoverflow.com/questions/11952274/how-can-i-create-keystore-from-an-existing-certificate-abc-crt-and-abc-key-fil) – Derzu Aug 23 '19 at 02:52

1 Answers1

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ADDED 4/21: Found duplicates:

keytool does not handle private keys directly.

The normal process is:

  1. keytool -genkeypair the privatekey and publickey in a JKS
  2. keytool -certreq generate a CSR from that keypair
  3. send the CSR (and related evidence) to a CA to get a certificate
  4. keytool -importcert the certificate, plus any needed intermediate or "chain" certficate(s), into the same JKS

If you don't have the JKS with the privateKey in it, but your PrivateKey.txt file contains the private key in a format usable by openssl -- does it begin with a -----BEGIN line followed by some lines of base64 and a matching -----END line and if so what is the type named after BEGIN? -- and you have or get openssl, you can use openssl to combine the privatekey and the related certs into a PKCS#12 file, and then keytool can convert the PKCS#12 to a JKS like this:

keytool -importkeystore -srckeystore p12file -srcstoretype pkcs12 -destkeystore jksfile

Or according to https://issues.jboss.org/browse/WFLY-3686 (sufficiently recent?) Wildfly can use a PKCS12 keystore as-is (instead of JKS).

EDIT 4/21: Documentation for the openssl pkcs12 utility is in a man page on your system if Unix-like with OpenSSL installed (typically section 1ssl or similar), or online at https://www.openssl.org/docs/apps/pkcs12.html#FILE-CREATION-OPTIONS, or in the duplicates above, or also Convert a CERT/PEM certificate to a PFX certificate

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dave_thompson_085
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  • I edit my question and add another information about my privatekey. But how to use openssl to create pcks112 keystore ? – luckybastard Apr 14 '15 at 07:00
  • @luckybastard yes PEM type "RSA PRIVATE KEY" is handled by OpenSSL (and little else except things using/wrapping OpenSSL like stunnel and curl); for pkcs12 see edits – dave_thompson_085 Apr 22 '15 at 04:47