Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
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This is a C# library dedicated for using with a www.canusb.com device
Full notes: See ReadMe.txt
Summary
The LAWICEL DLL is 'unmanaged code' and was not designed for use by C#/VB/Mono
http://en.wikipedia.org/wiki/Managed_code
If you wish to call 'unmanaged code' from 'managed code', you need to use a 'C# wrapper' to access the DLL. This wrapper uses 'PInvoke' (like peek/poke) to 'martial' calls from managed to unmanaged code. It sounds complicated, and it is.
IT IS ALSO TOTALLY UNNECESSARY. ...