HS Compress C Source Library
By Hillstone Software
HS Compress is a software library (supplied with full C source code) which provides a programmer with a lossless compression / decompression algorithm based on RLE (runtime length encoding) The library may be used in telecommunications application or for fixed data compression. *HOW IT WORKS: Runtime Length Encoding (RLE): HS Compress library operates in buffer mode. It monitors the buffer data for presence of any four or more consecutive repetitions of the same character. If detected, the compression code, character and length are stored in the output buffer. HOW TO BUY: You can purchase the library online using credit card payment at: http://www.hillstone-software.com/hs_compress_buy.htm The library currently costs EUR 29.00 for unlimited user license. Once the purchase is made you will receive download link by email to download full product deliverables, which include: - HS Compress library binaries. (Win32 static library) - HS Compress library full source code in C with MS Visual C project workspace - HS Compress Demo Application binaries, full source code and MS Visual C project workspace. - HS Compress library user manual, which documents in detail complete library API.
HS Crypto C Source Library
By Hillstone Software
HS Crypto is a software library in C (supplied with full source code) which offers a programmer an API to several data encryption / decryption algorithms. Implemented methods include the use of 2 either pre-defined or dynamically generated translation tables, an XOR-based stream cipher method with random dynamic key, plus the library includes RFC1321 MD5 Message Digest Algorithm The table encryption is implemented via the use of two either pre-defined translation tables or any of the 2 or a combination of dynamically generated translation tables. Decryption is implemented in a similar way using reverse tables. The stream cipher method uses randomly generated key which must be known to both receiver and transmitter to encode each byte with a rotating byte of the key RFC1321 MD5 algorithm generates a 16 byte data signature which is unique to the input data. This may be used for data integrity checking or in digital signature applications. * Applications: - Fixed File Encryption - Telecommunications - Security / authentification *Supported MODES - Use either of the the two pre-defined translation tables - Use dynamically generated translation tables - Use alternating translation tables - Buffer mode or character mode *Summary of API Functions: - HsSetCryptMode - HsEncryptByte - HsDecryptByte - HsEncryptBuf - HsDecryptBuf - HsCryptGenerateXlat - HsCryptGetXlat - HsCryptSetXlat - Hs.
HS FTP Client C Source Library
By Hillstone Software
HS FTP is a software library in C (supplied with full source code) which implements the client side of the File Transfer Protocol over TCP socket layer according to RFC 959. The library allows a user application to connect to remote FTP servers, traverse server directory structure and send and receive files. The HS FTP protocol module supports passive mode data connections, user / password authentication and a number of commonly used FTP commands: USER, PASS, TYPE, PASV, LIST, CWD, RETR, STOR Features - FTP Client RFC 959 operation - Server name resolution - Concurrent FTP client sessions - Passive mode, firewall friendly - User / password authentication - Asynchronous Operation what is supplied after you purchase the product? - HS FTP Library binaries (Win32 library) - HS FTP full source code in C with Visual C workspace and project files - Binaries and full C source code of HS SOCK module used by HS FTP for Win32 TCP/IP socket layer communications - HS FTP Demo Application binaries, C source code, project workspace - HS FTP User Manual which documents in detail complete library API To connect to remote FTP server, the user application calls HsFtpCliConnect, supplying connection parameters, such as remote FTP server name or IP address, username and password for authentication etc and a pointer to callback function that the HS FTP module uses to communicate with the user code. .
HS NMEA GPS C Source Library
By Hillstone Software
HS GPS is a software library (with full C source code) which provides access to a NMEA-183 compliant GPS receiver via a serial communications port, decoding NMEA sentences: $GPGGA, $GPGSA, $GPGSV, $GPGLL, $GPRMC and $GPVTG. Decoded parameters include: time, date, position, altitude, speed, course and heading, according to standard - NMEA-183 (National Marine Electronics Association, Interface Standard 0183. * HOW IT WORKS: HS GPS library continuously reads asynchronous data stream from a serial port and analyses the information to recognize and decode NMEA-183 Protocol sentences. After each message is received it is checked for integrity by comparing the received and the calculated checksum. The NMEA sentence fields are then converted from ASCII values into C structure variables and passed up to user application code. * Applications - Navigation - Security - Telematics - Fleet Tracking - Asset Tracking - Any customer applications requiring access to a NMEA-183 compliant GPS receiver * Features - Interfaces a GPS receiver over COM ports COM1 - COM8 - Decodes most commonly used NMEA sentences from a GPS receiver: - GGA - Global Positioning System Fix Data - GLL - Geographic Position - GSA - DOP and Active Satellites - GSV - Satellites in View - RMC - Recommended Minimum Specific GNSS Data - VTG - Course over Ground and Ground Speed HOW TO BUY HS GPS LIBRARY: You can purchase the .