Nov 10, 2018

How to check which SHA algorithm your certificate is using in Chrome

To find out which signature algorithm your secure website is using, in Chrome click on the green lock in the location bar. Then click on ‘connection’, then click on ‘certificate information’. In 'Details' tab you can find the information about 'Certificate Signature Algorithm'. Note algorithm such as SHA-256, OID.1.2.840.10045.4.3.2 etc which are one of the SHA2 hashing functions. If you see SHA-1, you need to immediately reissue your certificate using SHA-2 and install the new version.