ssl-certificate

How to create a self-signed certificate for a domain name for development

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Using PowerShell From Windows 8.1 and Windows Server 2012 R2 (Windows PowerShell 4.0) and upwards, you can create a self-signed certificate using the new New-SelfSignedCertificate cmdlet: Examples: New-SelfSignedCertificate -DnsName www.mydomain.example -CertStoreLocation cert:\LocalMachine\My New-SelfSignedCertificate -DnsName subdomain.mydomain.example -CertStoreLocation cert:\LocalMachine\My New-SelfSignedCertificate -DnsName *.mydomain.example -CertStoreLocation cert:\LocalMachine\My Using the IIS Manager Note that IIS certificates use SHA-1 hashing, which isn’t … Read more

Multiple subdomains with lets encrypt

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Prior to support for wildcards I found it necessary to explicitly list each domain on a certificate in the form … -d example.com -d www.example.com -d blog.example.com -d www.blog.example.com … (which due to complexities in the odd mix of redirected domains I’m using worked best with the –webroot authentication). Thanks to Trojan’s explanation and documentation … Read more

Python Requests with wincertstore

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I had a similar issue and fixed it using the python-certifi-win32 package (now out of maintenance): As of 2022 (as mentioned by Briareos386 in the comments) pip install pip-system-certs Original answer (out of maintenance) pip install python-certifi-win32 now you can just use: requests.get(url, verify=True) and the certificate is checked using the Windows Certificate Store. Note: … Read more

How to force Visual Studio to re-create the SSL certificate for a .NET Core Web Application running Kestrel?

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I finally figured it out. For anyone else who runs into this, the steps to fix it are: All localhost certificates must be deleted in certificate manager. They can be found in Personal and Trusted Root The secrets.json file must be deleted. This can be found in \Users\[user]\AppData\Roaming\Microsoft\UserSecrets\ In powershell, re-run dotnet dev-certs https –trust … Read more

How to convert a .cer to a .p12 file

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What works for me dealing with Push Notification certifies has been: Open the certificate: open my_filename.cer and click “View Certificates” to see the certificate’s name Go to Applications -> Utilities -> Keychain Access Ensure you have selected the “login” keychain, not the “system” one (thanks to @Matt Flettcher ) Go to “Certificates” Look for the … Read more

Within a web browser, is it possible for JavaScript to obtain information about the HTTPS Certificate being used for the current page?

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You can use the opensource Forge project to do this. It implements SSL/TLS in JavaScript. You can make an ajax call to the server and use a callback to inspect the certificate. Keep in mind that the server is the one sending the JavaScript so this shouldn’t be used to determine whether or not you … Read more

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