Adding certificate chain to p12(pfx) certificate

Question

I have aplication in java and cxf which connects to WebServices with client certificate.

I got certificates form WebService owner

• certificate.p12
• certificate.pem
• certificate.crt
• trusted_ca.cer
• root_ca.cer

I have problem with straightforward converting this p12 certficate to working jks keystore requred by java.

I did this:

keytool -importkeystore -srckeystore certificate.p12 -srcstoretype PKCS12 -destkeystore certificate1.jks -deststoretype JKS -storepass secret
keytool -import -alias root -file root_ca.cer -trustcacerts -keystore certificate1.jks -storepass secret
keytool -import -alias trusted -file trusted_ca.cer -trustcacerts -keystore certificate1.jks -storepass secret

but this jks doesn`t work and I get HTTP response '403: Forbidden' when using this certificate1.jks

However if I import this p12(pfx) certificate to Internet Explorer and then export this certificate from IE to pfx format selecting "Include all certificates in the certification path" checkbox and use:

keytool -importkeystore -srckeystore certificate.pfx -srcstoretype PKCS12 -destkeystore certificate2.jks -deststoretype JKS -storepass secret
keytool -import -alias root -file root_ca_kir.cer -trustcacerts -keystore certificate2.jks -storepass secret
keytool -import -alias trusted -file trusted_ca_kir.cer -trustcacerts -keystore certificate2.jks -storepass secret

Then everything works fine and I can connect to WebService using certificate2.jks.

I found that original certificate.p12(pfx) contains only one entry (Certificate chain length: 1):

keytool -list -keystore certificate.p12 -storepass secret -storetype PKCS12 -v


*******************************************
*******************************************

Alias name: alias
Entry type: PrivateKeyEntry
Certificate chain length: 1
Certificate[1]:
Owner: CN=MyCompany, [email protected], O=bla, C=PL
Issuer: CN=Trusted CA, O=ble, C=PL
Serial number: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Valid from: ... until: ...
Certificate fingerprints:
         MD5:  XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
         SHA1: XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
         Signature algorithm name: SHA1withRSA
         Version: 3

Extensions:

#1: ObjectId: X.X.XX.XX Criticality=false
KeyUsage [
  DigitalSignature
  Key_Encipherment
]

...

*******************************************
*******************************************

while certificate.pfx exported from IE with "Include all certificates in the certification path" contains certificate chain with second Trusted CA certificate (Certificate chain length: 2):

keytool -list -keystore certificate.p12 -storepass secret -storetype PKCS12 -v



*******************************************
*******************************************

Alias name: alias
Entry type: PrivateKeyEntry
Certificate chain length: 2
Certificate[1]:
Owner: CN=MyCompany, [email protected], O=bla, C=PL
Issuer: CN=Trusted CA, O=ble, C=PL
Serial number: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Valid from: ... until: ...
Certificate fingerprints:
         MD5:  XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
         SHA1: XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
         Signature algorithm name: SHA1withRSA
         Version: 3

Extensions:

#1: ObjectId: X.X.XX.XX Criticality=false
KeyUsage [
  DigitalSignature
  Key_Encipherment
]

...

Certificate[2]:
Owner: CN=Trusted CA, O=ble ble ble, C=PL
Issuer: CN=ROOT CA, O=ble ble ble, C=PL
Serial number: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Valid from: ... until: ...
Certificate fingerprints:
         MD5:  XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
         SHA1: XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
         Signature algorithm name: SHA1withRSA
         Version: 3

Extensions:


*******************************************
*******************************************

So to solve my problem I need to have p12 certificate with chain to trusted CA certificate. I can do this by importing p12 to IE and then exporting back with "Include all certificates in the certification path".

How can I do this without IE using keytool or other tool?

Bary

Solution

Own answer.

I figured out how to do this with OpenSSL:

openssl pkcs12 -in certificate.p12 -out clientcert.pem -nodes -clcerts
openssl x509 -in trusted_ca.cer -inform DER -out trusted_ca.pem
openssl x509 -in root_ca.cer -inform DER -out root_ca.pem
cat clientcert.pem trusted_ca.pem root_ca.pem >> clientcertchain.pem
openssl pkcs12 -export -in clientcertchain.pem -out clientcertchain.pfx

Comments

[ixe013]

Add to add the -nokeys option to the last command. I have OpenSSL 1.0.1e-fips 11 Feb 2013

[bgStack15]

I spent hours looking for this functionality. Fantastic! I needed it for Tomcat 7.0.63 on Windows 2008 R2.

[Cocowalla]

@ixe013 you would only use the -nokeys option if you didn't want the private key to be stored in the resulting pfx file