MegaCryption is a file-level cryptography and key management toolkit designed for IBM z/OS (mainframe) environments. It provides encryption, data integrity, digital signatures, and compression for virtually any file type within a z/OS environment, including flat files, VSAM files, and database data. Key capabilities include: - File-level and field-level encryption for on-site data, cloud-stored data, and data in transit (FTP/SSL) - Comprehensive key management supporting ICSF, OpenSSL, and OpenPGP key formats, with secure storage via RACF, ACF2, TopSecret, and ICSF - Cross-platform compatibility with PGP, OpenPGP, and GnuPG standards (RFC9580 compliant) - High-performance compression supporting Gzip, Zip, and ZIP64 formats, including hardware compression - Programming interfaces for Assembler, PL/1, COBOL, and REXX, allowing integration into custom applications, databases, exits, online transactions, and batch programs - Support for modern cryptographic algorithms including X25519, Ed25519, X448, Ed448, NIST & Brainpool curves, AES-192/AES-256 with OCB & GCM (AEAD), SHA2/SHA3 variants, and Argon2 key derivation - ISPF panel interface and sample JCL libraries for user-friendly operation across experience levels - Complementary companion products available for Windows (PC), Unix/Linux (IX), DB2 databases, and Broadcom IDMS environments MegaCryption addresses compliance requirements including SOX, PCI, HIPAA, FERPA, COPPA, HITECH, EU GDPR, and UK DPA.