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HS SMTP is a software library in C (supplied with full source code) which implements the client side of Simple Mail Transfer Protocol (SMTP) over TCP socket layer according to RFC 821. Support for transfer of basic message header and text is provided
From version 1.1, HS SMTP supports ESMTP extension for LOGIN Authentication using Base64 encoding and message sending to multiple recipients from address list.
From version 1.2 HS SMTP supports sending binary file attachments using MIME version 1.0 base64 encoding
To send a text email message to any address on the internet, the user application calls a single function HsSmtpSendMail, specifying mail server name or IP address, sender address, recipient address, message text buffer and length, subject, cc and an event callback function to use for reporting of operation result and server errors.
HS SMTP library then resolves the server name, connects to it and transmits the message according to SMTP RFC 821 protocol. HS SMTP Library incorporates the necessary state machine, transparency procedures, and server response processing required to comply to a simple and robust SMTP client implementation.
Modular design makes it easy to port HS SMTP protocol module to any environment. HS SMTP internally at a lower layer interfaces to HS Sock library which provides TCP transport services. User application need not worry about Winsock - HS SMTP does all transmission, reception and event handling over socket layer.
Features
-SMTP Client Operation
-Server name resolution
-Supports up to 5 contexts
-Message Header Transfer
-Message Text Transfer
-Asynchonous Operation
Customization: Hillstone Software provides additional services for customization, porting and integration of the library code to better suit the needs of your products
API summary
-HsSmtpInit
-HsSmtpDestroy
-HsSmtpTick
-HsSmptSendMail
-HsSmptAbortMail
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HsCipherSDK is an Encryption Library providing an API to a suite of symmetric key cryptographic algorithms and one way hash digital signature algorithms. The library includes the following block and stream cipher modules:
* AES (Advanced Encryption Standard) - FIPS 197
* DES and Triple DES (Data Encryption Standard) - FIPS-46-1, FIPS-46-3
* ARC4 (Alleged RC4) CAST-128 (a.k.a CAST5) - RFC 2144
* Blowfish algorithm
* Twofish algorithm
* MD5 message digest algorithm - RFC 1321
* SHA-1 (Secure Hash Algorithm) - RFC 3174
* SHA-256 (Secure Hash Algorithm) - FIPS 180-2
HsCipherSDK includes s standard DLL for use from Visual C, standard DLL for use from Visual Basic and ActiveX DLL (COM object) for use from Visual C, Visual Basic or any other language supporting activeX. HsCipherSDK itself is fully written in Visual C (plain C style) and the source code is included with HsCipherSDK Plus edition
HsCipherSDK allows the calling user application to perform the following operations:
* Encrypt and decrypt memory buffers with selected algorithm and key
* Encrypt and decrypt disk files with selected algorithm and key
* Digitally sign buffers using one of selected hashing algorithms
* Digitally sign disk files using one of selected hashing algorithms
HS SMTP: http://www.hillstone-software.com/hs_smtp_demo.exe
HsCipherSDK Encryption Library: http://www.hillstone-software.com/hs_cipher_sdk_setup.exe |
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