Top 20 NuGet asymmetric Packages
Encrypt/Decrypt files and streams with PGP using a single line of code. Synchronous or asynchronous operation. Other features; ASCII Armor, data integrity packets, public/private key generation.
CBCrypt : Next-generation user authentication, beyond bcrypt, scrypt, pbkdf2 CBCrypt deterministically generates an asymmetric keypair from servername, username, and password. Users can authenticate to the server without ever sending their password. For more details, see https://www.cbcrypt.org
The Scrypt (Silverlight Cryptography) library adds RSA Encryption, Decryption, Signing and Verification for Silverlight and Windows Phone 7. Key generation is performed asynchrounously so as not to block your UI. This library has been used successfully in Windows Phone 7 apps offered through AppHub....