ERR_SSL_CLIENT_AUTH_SIGNATURE_FAILED in Google Chrome

Question

I\'ve got a web site that uses SSL Client certificate authorization. All client certificates are generated using OpenSSL and are self-signed. Everything worked with all web-bro

Answer 1

I recently had a similar issue in Chrome on Mac OS. It worked fine with Firefox, but started failing in Chrome and Safari after changing my corporate (AD) credentials -- I guess the issue was a mismatch between system creds and the keychain creds.

The solution for me was a reset of the private key(s) access permissions in the Keychain Access app.

To do the reset:

1. In Keychain Access app right-click each private key that fails and select "Get Info".
2. Go to "Access Control" tab and set "Allow all applications to access this item" -- click on that option even if it's already set. Then click Save Changes.
3. Refresh the website that fails and you should be prompted to enter keychain password -- enter it and select Allow Always.