I am actually working on a protocol security. I need to send the certificate and verify it on the other side.
Now here is what I have planned:
1 Send the certificate chain just like a normal stream of data
2.Capture it on the other side and store it in a char[] buffer
Now, how to verify the certificate from this char[]buffer and extract the needed parameters?
I need it in c/c++.
This blog post about Verifying Using a Certificate Store using OpenSSL shows how to verify certificate against CA.
Related
Problem:
Sending a request from Azure-API-Management to a SOAP-webservice using client certificate authentication, results in a 401-response, whereas I would like to get a 200-response.
Cause: When I use the same keystore (pfx) in SoapUI all goes well and I do receive the 200-response. So the certificates and key in the pfx are valid. Because Basic Authentication in APIM does allow me to connect to the webservice, the cause must be that something goes wrong with sending the client-certificate from API-Management to the webservice.
Attempt to solve: I would like to try sending the certificate to the backend using this policy so I can hopefully pass the authentication:
<authentication-certificate body="#(context.Variables.GetValueOrDefault<byte[]>("byteCertificate"))" password="optional-certificate-password" />
Where I am currently stuck:
How can I convert my PFX file (containing 4 certificates and a key) to a byte array so that I can use it in API-Management?
i'm looking for a solution for 4 days but i have found nothing.
What i want is to get an access token from my Identity Server with a client_credentials grant_type. I found that you can do this but nowhere is explained how to make the certificates, how the request is made etc.
I tried a lot of ways but with no success.
From the documentation:Our default private key JWT secret validator expects the full (leaf) certificate as base64 on the secret definition. This certificate will then be used to validate the signature on the self-signed JWT . That base64 is the content of the .cert file i believe. On the request should i put the .pfx file in base64 too?
Are there any changes that i need to make on the program.cs file for the Kestrel? I found this too, but all are outdated and doesn't work.
Now i'm trying with postman, after this everything should be called from an Azure Logic App.
I followed this example : but doesn't work.
The error:
Postman:
Program.cs
And the Config.cs from Identity
I will be very glad if you can help. Thanks in advance
As said you can use a client secret instead of a client certificate which is more common/easier. If you really need certificate authentication: I found more information on http://docs.identityserver.io/en/latest/topics/mtls.html
I'm building a web service to allow salesforce to call to it, the two way SSL is used for security, and salesforce has provided its client certificate: sfdc-client.cert.
In order to test whether salesforce client certificate work or not, I have setup a very simple web on MAC apache and enable SSL and client authentication on ssl config file /etc/apache2/extra/httpd-ssl.conf as below (use self-signed):
SSLCertificateFile "/private/etc/apache2/ssl/server.crt"
SSLCertificateKeyFile "/private/etc/apache2/ssl/server.key"
SSLCACertificateFile "/private/etc/apache2/ssl/sfdc-client.cert"
SSLVerifyClient require
SSLVerifyDepth 10
The first browsing by Chrome, I got "SSL Connection Error", I supposed it's correct in this case.
Then, I have tried to import sfdc-client.cert to key chain access, but it does not work at all because it just supports p12/pfx format.
I also tried to use CURL:
curl https://test.com --cert-type der --cert sfdc-client.cert
but got the error:
curl: (58) unable to use client certificate (no key found or wrong pass phrase?)
I'm totally newbie on this stuff, does anyone know how to test client certificate to make sure it works as above?
First you need to have both the client's certificate and certificate private key to be able to test 2-way SSL authentication.
To test with web browser, follow instructions here: Is there a way to test 2 way ssl through browser?
I am just wondering while implementing SAML SSO with Salesforce I realize that I uploaded the certificate to the SP side (i.e. Salesforce), however I can see when we send a signed SAML response it already includes the certificate.
Why is the certificate shared ahead of time with the SP?
It's all about establishing trust between systems. If you don't give SFDC your cert ahead of time, how can they trust the message you are sending is actually from your IDP? Without your cert ahead of time, they can validate that the message is intact but not who actually generated it. When you include your public key in the SAML Response, they can check that it's the same one you shared with them and it's the same one you used to generate the signature.
I am using libcurl in my C application to communicate with an HTTPS server that I have set up. I generated a self-signed certificate on that server that I wish to use with curl.
I am aware of setting CURLOPT_SSL_VERIFYPEER to 0 to bypass the SSL verification, but I wish to add the generated certificate to curl's "valid" CA certificates.
I have tried setting CURLOPT_CAPATH and CURLOPT_SSLCERT to the location of the server SSL public key, but it fails to pass the verification.
How can I add my own CA/Self-signed certificate so that libcurl will successfully validate it?
To add a self-signed certificate, use CURLOPT_CAINFO
To retrieve the SSL public certificate of a site, use
openssl s_client -connect www.site.com:443 | tee logfile
The certificate is the portion marked by ----BEGIN CERTIFICATE---- and
---END CERTIFICATE----.
Save that certificate into a file, and use curl in a manner like so:
CURL* c = curl_easy_init();
curl_easy_setopt(c, CURLOPT_URL, "https://www.site.com");
curl_easy_setopt(c, CURLOPT_CAINFO, "/path/to/the/certificate.crt");
curl_easy_setopt(c, CURLOPT_SSL_VERIFYPEER, 1);
curl_easy_perform(c);
curl_easy_cleanup(c);
First, you kind of mix "Certificate Authority" files and "Certificate" files which confuses me.
How can I add my own CA/Self-signed certificate so that libcurl will
successfully validate it?
This might be seen as a complementary answer to the one above.
In the case you want to add a self-signed CA (every root-CA is self-signed) so that libcurl will successfully validate a website's certificate, which has been generated by the CA, then continue reading.
With CURLOPT_CAINFO you need to pass the "Certificate Authority" file (CA) that was used when generating the (non-CA) certificate of the site you want to verify.
(I do not know if this option works by passing it a non-CA certificate, the documentation is not really clear on this, and the previous answer has 2 up-votes, so if anyone has tested it please comment)
You can also pass a Certificate Authority chain file that contains the CA that was used, in case it was not a root-CA.
Here's a little tutorial I've found that can help you test your solution:
Creating a private root CA:
http://www.flatmtn.com/article/setting-openssl-create-certificates
Creating a site certificate:
http://www.flatmtn.com/article/setting-ssl-certificates-apache