An active server component that provides file encryption and digital-signature functionality, S/MIME-based secure mail support and X.509 certificate management capabilities. Requires runtime licensing. By Persits Software, Inc. [Component, Commercial]

Supports 128 bit Blowfish, 192 bit file encryption and intrinsic 512-8096 bit PGP based encryption. Requires runtime licensing on servers. [Component, Commercial]

COM component for data encryption/decryption. Supports AES (Rijndael), Twofish, and SHA-1 algorithms. By Polar.

Provides data encryption and hashing services with supports for AES, Twofish, RSA, SHA-2, and HAVAL algorithms. By Xceed Software Inc. [Component, Commercial]

Encryption component. DES, 3DES, MD5, RSA and BASE64. Encrypt Variants and files. By GCE. [Component, Commercial]

Supports up to 256-bit AES, 2048-bit RSA public-key cryptography, and digital signature creation and validation. By Chilkat Software, Inc. [Component, Commercial]

A component for encrypting and decrypting files and data. By WebSupergoo.