.NET 6 cryptographic utility

1. Attached and detached digital file signatures (CMS/PKCS#7): signing and verification.
2. Self-signed certificates creation: RSA and ECDSA.
3. AES: file encryption and decryption.
4. Certificate formats conversion: PFX, PEM, CRT, CER.
5. RSA: direct file encryption and decryption (by blocks).
6. ECDH keys generation.
7. GUID creation.
8. File hash computing: MD5, SHAxxx.
9. String conversion tool ("Text Wizard").
10. Cryptographic library (managed and COM-available).
11. Applications signing (.exe, .dll, .msi etc.)
12. WebSignTool: web application with all these functions: https://websigntool.azurewebsites.net