Notes

Demo C# console application for:

• Private/Public RSA Key Generation using RSACryptoServiceProvider with key size of your taste.
• Message Encryption/Decryption using those keys.
• Message Signing(SHA512)/Verification using those keys.
• X509 self-signed Certificate creation using BouncyCastle.
• PDF document signing using certificate using iTextSharp.

Use it at your own caution & feel free to improve it as you like.