如何从 .pem 文件将 .p12 密钥添加到 Java Spring？

Question

I have this 3 files:

• certificate.crt
• certificate.pem
• certificate.key

The certificate.crt contains:

-----BEGIN CERTIFICATE-----
MIIGmzCCBYOgAwIBAg etc
-----END CERTIFICATE-----

The certificate.key contains:

-----BEGIN RSA PRIVATE KEY-----
MIIEpAIBAAKCA bla bla
-----END RSA PRIVATE KEY-----

And the certificate.pem is more complex, it has:

-----BEGIN PRIVATE KEY-----
MIIEvgIBADANBgk etc etc
-----END PRIVATE KEY-----
-----BEGIN CERTIFICATE-----
MIIGmzCCBYOgAwIBAg etc
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIGBjCCA+6gAwIBAgIR...
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIFdzCCBF+gAwIBAgIQ...
-----END CERTIFICATE-----

So, certificate.pem contains 1 private key (diferent to certificate.key) and 3 certificates (the first is same to certificate.crt)

With this files, how can I get a.p12 file to insert into my Java Spring application?

I already tried with openssl convert the.pem file to a.p12 file but when I go to https//mydomain.com there is a not secure ssl message.

Answer 1

I know it's too late but in case, some one will need that in the future.

sudo openssl pkcs12 -export -in certificate.crt -inkey certificate.key -out keystore.p12

Keep attention, that in most cases cert files are protected and reading operations are allowed only for root / sudo users. To verify that do -> ls -al .

-rw----r-- 1 root root 5717 Jun 13 21:49 certificate.crt Perform operations using root / sudo privileges or change permissions using chmod/chown.