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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