CryptSharpStandard provides a .NET Standard 2.0 implementation of SCrypt and PBKDF2 for any HMAC (.Net's built-in PBKDF2 implementation only supports SHA-1).
This is a conversion of the source code at https://www.zer7.com/cryptsharp
CryptSharpStandard uses the same ISC license that CryptSharp uses. http://en.wikipedia.org/wiki/ISC_license
Taken from the December 2, 2014 - version 2.1.0 (available in nuget as CryptSharpOfficial) download.
Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.