We have created a project with no problem but when we go to Administration we can get to the login page but when we try to login we get the error "The specified cryptographic algorithm is not supported on this platform" If we use an incorrect login name or password we do get the error incorrect logn name or password. We get the cyrptographic alogorithm error only we were are trying to login with a correct user name and password.
We are using the same platform which we have created several projects on. We are using Sitefinity 5 on Windows server 2003. The project manager is being run from a mapped net work drive as we cannot run a web browser on our server. This has never been a problem in the past anyway. Have attached the error print out.
Thank you for contacting Sitefinity Support.
Could you please execute the following two tests, which will help us to investigate the possible causes of the issue?
Could you please record a short video with the tests and upload it?
Could you access the site via web browser (e.g. IE + your web site address)?
NOTE: Please don’t use the Project manager for this test.
As the error states the cause if something missing on the operating system when sitefinity tries to execute its claims authentication this might be the cause if the other sitefinity site ran on this server were using forms authentication.
To check if other site ran on this server were using Forms authentication the entry for forms authentication in App_Data/Sitefinity/Configuration/SecurityConfig.config is: