Copyright © 2001 - 2007 SILC Project SILC Project Website | SILC Toolkit Reference Manual Index

SILC Toolkit Reference Manual
SILC Crypto Library
Introduction to SILC RNG
SILC RNG Interface
SILC Cipher API
SILC PKCS API
SILC Public Key API
SILC PKCS #1 API
SILC Hash Interface
SILC HMAC Interface
SILC Core Library
SILC Authentication Interface
SILC Message Interface
SILC Channel Interface
SILC Command Interface
SILC Notify Interface
SILC Status Types
SILC Modes
SILC ID Interface
SILC Argument Interface
SILC Attributes Interface
Packet Engine Interface
SILC Public Key Payload Interface
SILC Key Exchange Library
SILC SKE Interface
SILC Connection Authentication Interface
SILC VCard Library
SILC VCard Interface
SILC Math Library
SILC MP Interface
SILC Math Interface
SILC Client Library
Using SILC Client Library Tutorial
Arguments for command_reply Client Operation
SilcStatus Error Arguments in command_reply Client Operation
Arguments for notify Client Operation
Unicode and UTF-8 Strings in Client Library
Client Library Interface Reference
Client Entry Interface Reference
SILC ASN.1 Library
SILC ASN.1 Interface
SILC BER interface
SILC HTTP Library
SILC HTTP Server Interface
SILC HTTP PHP Translator
SILC Utility Library
Basic Types and Definitions
Data Buffer Interface
Data Buffer Format Interface
Hash Table Interface
Memory Allocation Interface
Data Stack (memory pool) Interface
Finite State Machine Interface
Thread Interface
Mutual Exclusion Lock Interface
Condition Variable Interface
Atomic Operations Interface
Network (TCP and UDP) Interface
Scheduler Interface
Asynchronous Operation Interface
Abstract Stream Interface
Socket Stream Interface
File Descriptor Stream Interface
File Utility Functions
String Utility Interface
Snprintf Interface
UTF-8 String Interface
Stringprep Interface
Utility Functions
List Interface
Dynamic List Interface
MIME Interface
Time Utility Functions
Logging Interface
Config File Interface
SILC Key Repository Library
SILC SKR Interface
SILC Application Utility Library
SILC Application Utilities
SILC ID Cache Interface
SILC SFTP Library
SILC SFTP Interface
SFTP Filesystems Interface
Resource Links
SILC Project Website
SILC Protocol Documentation
SILC White Paper
SILC FAQs

Function silc_hmac_update
SYNOPSIS

        void silc_hmac_update(SilcHmac hmac, const unsigned char *data,
                              SilcUInt32 data_len);

DESCRIPTION

        This function may be called to add data to be used in the MAC
        computation.  This can be called multiple times to add data from
        many sources before actually performing the HMAC.  Once you've
        added all the data you need you can call the silc_hmac_final to
        actually produce the MAC.

EXAMPLE

        unsigned char mac[20];
        SilcUInt32 mac_len;

        silc_hmac_init(hmac);
        silc_hmac_update(hmac, data, data_len);
        silc_hmac_update(hmac, more_data, more_data_len);
        silc_hmac_final(hmac, mac, &mac_len);

SILC HMAC Interface
SilcHmac
SilcHmacObject
silc_hmac_register
silc_hmac_unregister
silc_hmac_register_default
silc_hmac_unregister_all
silc_hmac_alloc
silc_hmac_free
silc_hmac_is_supported
silc_hmac_get_supported
silc_hmac_len
silc_hmac_get_hash
silc_hmac_get_name
silc_hmac_set_key
silc_hmac_get_key
silc_hmac_make
silc_hmac_make_with_key
silc_hmac_make_truncated
silc_hmac_init
silc_hmac_init_with_key
silc_hmac_update
silc_hmac_final

Copyright © 2001 - 2007 SILC Project SILC Project Website | SILC Toolkit Reference Manual Index