HIME stands for Huge Integer Math and Encryption library.
 

• It is a cryptography toolkit for Windows programmers that allows to implement public key encryption, secret key encryption, data security and digital signatures using one of the many one-way secure hash functions in your programs.
   
• Public (asymmetric) key encryption and digital signatures with RSA ; standard version or the CRT (Chinese Remainder Theorem) version.
   
• Secret (symmetric) key encryption with AES (Rijndael) in 3 different block cipher modes or ArcFour (RC4 compatible) (**).
   
• Hash functions:  SHA-512, SHA-256, SHA-1, MD5, CRC32 (**).
   
• HIME also contains functions for huge prime number generation, factoring and cryptographically secure random number generation (a.o. Blum-Blum-Shub and RSA). True random number data can be retrieved from an internet server.
   
• The Diffie-Hellman key exchange algorithm to securely exchange session keys.
   
• HIME has compression and decompression functions with multiple compression algorithms to choose from.
   
• HIME is thread-safe (re-entrant) for use in multi-threaded applications or concurrent environments.
   
• HIME has functions for easily handling data, arranged as records with fields.
   
• HIME has functions for converting data between various formats: huge integer, Base64, decimal, hex, ascii binary.
   
• HIME has functions for securely erasing disk files and free disk space.
   
• HIMEs huge integer number mathematical, bit manipulation and boolean functions can serve as building blocks for implementing other public key encryption schemes or performing math calculations with arbitrary precision.
   
• HIMEs huge integer math functions are ideal for number theory applications.
   
• A huge integer number in HIME can be hundreds of millions of digits long; 2^31 (2147483648) bits long to be exact. That's over 268 MILLION decimal digits!
   
• HIME is a 32 bits dll, so every programming language that can access a standard Win32 dll can use HIME: C, C++, C#, Visual Basic 5/6, VB.Net, Delphi, PowerBASIC, PureBASIC, Liberty Basic, Euphoria, Java, Macromedia Director (with GLU32)...
  HIME can be used in MS Office (MS Access, MS Excel, MS Word) (***) using VBA (Visual Basic for Applications).
  .NET (dot NET) languages can use HIME as an 'unmanaged code dll'.
   
• HIME comes with demo and test programs (including their source code) to show HIMEs performance and as an example of how to use HIME.
   
• Demo code in Visual Basic 5/6, C++, C#, VB.Net, Liberty Basic, Delphi, PowerBASIC and PureBASIC are also included.
   
• HIME was written in PowerBASIC (*) and inline assembler.
   
• HIME is designed to support all Windows operating systems.
  (tested on Windows 98, XP and Vista)

 

(*) PowerBASIC is copyright of PowerBASIC, Inc.

(**) RC4 and MD5 are trademarks of RSA Data Security Inc.

(***) MS Office, MS Access, MS Excel, MS Word are all trademarks of Microsoft Corporation.