Bp-tools Cryptographic Calculator 20.12 |work| Download

| Tool | Purpose | Availability | |------|---------|---------------| | (NirSoft) | File hash & checksum | Free, portable | | OpenSSL (command line) | Full crypto suite | Open source | | CyberChef (web) | Encoding, hashing, encryption | No install needed | | GnuPG | Asymmetric & symmetric encryption | Open source | | Crypto++ (library) | For developers | Open source |