Check if a Certificate and a Private Key matches

Modified on: Mon, 18 Oct, 2021 at 9:17 AM

Step 1: Go to https://www.sslshopper.com/certificate-key-matcher.html

Step 2: Select ‘Check if a Certificate and a Private Key matches’

Step 3:

i. Open your certificate file with a notepad

ii. Copy text.

iii. Paste to ‘Enter your certificate’ block

Step 4:

i. Open your private key file with a notepad

ii. Copy text.

iii. Paste to ‘Enter your private key’ block

Step 5: It will provide you match/mismatch result at the right side of the block.

You can check whether a certificate matches private key matches a certificate on your own computer by using the OpenSSL commands below:

openssl x509 -noout -modulus -in certificate.crt | openssl md5

openssl rsa -noout -modulus -in privateKey.key | openssl md5

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