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_message_payload_parse

SYNOPSIS

    SilcMessagePayload
    silc_message_payload_parse(unsigned char *payload,
                               SilcUInt32 payload_len,
                               SilcBool private_message,
                               SilcBool static_key,
                               SilcCipher cipher,
                               SilcHmac hmac,
                               unsigned char *sender_id,
                               SilcUInt32 sender_id_len,
                               unsigned char *receiver_id,
                               SilcUInt32 receiver_id_len,
                               SilcStack stack,
                               SilcBool no_allocation,
                               SilcMessagePayload message);

DESCRIPTION

    Parses Message Payload returning new payload structure.  This also
    decrypts the payload and checks the MAC.  If the payload is
    channel message then `private_message' is FALSE, and if it is
    private message it is TRUE.  If the private message key is static
    (pre-shared key) then protocol dictates that the IV is present
    and `static_key' must be set to TRUE.  If the key is not static
    (Key Agreement was done for the key) then it MUST be FALSE.  For
    channel messages the `static_key' is ignored.

    If the `hmac' is no provided then the MAC of the channel message is
    not verified.  If the message is private message and `cipher' is NULL
    then this assumes that the packet was decrypted with session keys
    (no private message key) and this merely decodes the payload.

    The `sender_id' and `receiver_id' are the IDs from the packet header
    of the packet where this message payload was received.

    If the `message' is non-NULL then that pre-allocated context is
    used in parsing.  Same context is returned.  Otherwise new context
    is allocated and returned.  If the `stack' is non-NULL then memory
    is allocated from that stack.  If `no_allocation' is TRUE then the
    `message' must be provided and data is merely parsed and referenced
    from `payload' and will become invalid when `payload' invalidates.
    If `no_allocation' is TRUE the routine does not do any allocations.






SILC Message Interface
SilcMessagePayload
SilcMessageFlags
silc_message_payload_decrypt
silc_message_payload_parse
silc_message_payload_encrypt
silc_message_payload_encode
silc_message_payload_free
silc_message_get_flags
silc_message_get_data
silc_message_get_mac
silc_message_signed_verify
silc_message_signed_get_public_key




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