NET PGP Library
Using Your License Key
Licensing > Using Your License Key

//Trial Mode
PgpEncryptorDecryptor pgpEncryptorDecryptor = new PgpEncryptorDecryptor();

//License Mode
PgpEncryptorDecryptor pgpEncryptorDecryptorLicensed = new PgpEncryptorDecryptor("place user name here", "place license key here");