OpenSSL Verifying Certificate Keys

Verify Private Key File

1. To verify the md5 checksum of the private key.
   1. # openssl rsa -noout -modulus -in <privatekey.key> | openssl md5

Verify certificate signing request file

1. To verify the md5 checksum of the CSR.
   1. # openssl req -noout -modulus -in <CSR.csr> | openssl md5

Verify the generated signed certificate file

1. To verify the md5 checksum of the certificate file.
   1. # openssl x509 -noout -modulus -in <certificate.crt> | openssl md5

Further Reading

1. Certificate Key Matcher