You can use this Certificate Key Matcher to check whether a private key matches a certificate or whether a certificate matches a certificate signing request (CSR). When you are dealing with lots of different certificates it can be easy to lose track of which certificate goes with which private key or which CSR was used to generate which certificate. The Certificate Key Matcher tool makes it easy to determine whether a private key matches or a CSR matches a certificate.

Reasons for importing keys include wanting to make a backup of a private key (generated keys are non-exportable, for security reasons), or if the private key is provided by an external source. This document will guide you through using the OpenSSL command line tool to generate a key pair which you can then import into a YubiKey. Dec 01, 2015  How to create self-certified SSL certificate and public/private key files. Iguana supports OpenSSL SSH-2 private keys and certificates in PEM format, these must not be password protected.

The Certificate Key Matcher simply compares a hash of the public key from the private key, the certificate, or the CSR and tells you whether they match or not. You can check whether a certificate matches a private key, or a CSR matches a certificate on your own computer by using the OpenSSL commands below:

openssl pkey -in privateKey.key -pubout -outform pem sha256sum
openssl x509 -in certificate.crt -pubkey -noout -outform pem sha256sum
openssl req -in CSR.csr -pubkey -noout -outform pem sha256sum

Mep key generator tool download. Your private key is intended to remain on the server. While we try to make this process as secure as possible by using SSL to encrypt the key when it is sent to the server, for complete security, we recommend that you manually check the public key hash of the private key on your server using the OpenSSL commands above.

Openssl Generate Key File

You can also do a consistency check on the private key if you are worried that it has been tampered with. See Hanno Böck's article How I tricked Symantec with a Fake Private Key for how to do this and when this might be useful.

Openssl Generate Key Pair And Certificates

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