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* Off-the-Record Messaging Toolkit
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* Copyright (C) 2004-2008 Ian Goldberg, Chris Alexander, Nikita Borisov
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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typedef struct s_KeyExchMsg {
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unsigned char *raw; /* The base64-decoded data; must be free()d */
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gcry_mpi_t p, q, g, e;
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unsigned char *sigstart; /* Pointers into the "raw" array. Don't */
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unsigned char *sigend; /* free() these. */
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typedef struct s_DataMsg {
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unsigned char *raw; /* The base64-decoded data; must be free()d */
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unsigned int sender_keyid;
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unsigned int rcpt_keyid;
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unsigned char *encmsg; /* A copy; must be free()d */
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unsigned char mac[20];
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unsigned char *mackeys; /* A copy; must be free()d */
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unsigned char *macstart; /* Pointers into the "raw" array. Don't */
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unsigned char *macend; /* free() these. */
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typedef struct s_CommitMsg {
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unsigned char *raw; /* The base64-decoded data; must be free()d */
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unsigned char *enckey;
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unsigned char *hashkey;
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typedef struct s_KeyMsg {
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unsigned char *raw; /* The base64-decoded data; must be free()d */
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typedef struct s_RevealSigMsg {
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unsigned char *raw; /* The base64-decoded data; must be free()d */
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unsigned char *encsig;
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unsigned char mac[20];
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typedef struct s_SignatureMsg {
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unsigned char *raw; /* The base64-decoded data; must be free()d */
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unsigned char *encsig;
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unsigned char mac[20];
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/* Dump an unsigned int to a FILE * */
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void dump_int(FILE *stream, const char *title, unsigned int val);
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/* Dump an mpi to a FILE * */
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void dump_mpi(FILE *stream, const char *title, gcry_mpi_t val);
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/* Dump data to a FILE * */
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void dump_data(FILE *stream, const char *title, const unsigned char *data,
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/* Parse a Key Exchange Message into a newly-allocated KeyExchMsg structure */
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KeyExchMsg parse_keyexch(const char *msg);
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/* Deallocate a KeyExchMsg and all of the data it points to */
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void free_keyexch(KeyExchMsg keyexch);
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/* Parse a D-H Commit Message into a newly-allocated CommitMsg structure */
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CommitMsg parse_commit(const char *msg);
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/* Parse a Data Message into a newly-allocated DataMsg structure */
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DataMsg parse_datamsg(const char *msg);
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/* Deallocate a CommitMsg and all of the data it points to */
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void free_commit(CommitMsg cmsg);
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/* Parse a Reveal Signature Message into a newly-allocated RevealSigMsg
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RevealSigMsg parse_revealsig(const char *msg);
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/* Deallocate a RevealSigMsg and all of the data it points to */
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void free_revealsig(RevealSigMsg rmsg);
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/* Parse a Signature Message into a newly-allocated SignatureMsg structure */
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SignatureMsg parse_signature(const char *msg);
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/* Deallocate a SignatureMsg and all of the data it points to */
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void free_signature(SignatureMsg smsg);
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/* Parse a D-H Key Message into a newly-allocated KeyMsg structure */
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KeyMsg parse_key(const char *msg);
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/* Deallocate a KeyMsg and all of the data it points to */
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void free_key(KeyMsg cmsg);
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/* Recalculate the MAC on the message, base64-encode the resulting MAC'd
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* message, and put on the appropriate header and footer. Return a
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* newly-allocated pointer to the result, which the caller will have to
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char *remac_datamsg(DataMsg datamsg, unsigned char mackey[20]);
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/* Assemble a new Data Message from its pieces. Return a
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* newly-allocated string containing the base64 representation. */
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char *assemble_datamsg(unsigned char mackey[20], int flags,
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unsigned int sender_keyid, unsigned int rcpt_keyid, gcry_mpi_t y,
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unsigned char ctr[8], unsigned char *encmsg, size_t encmsglen,
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unsigned char *mackeys, size_t mackeyslen);
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/* Deallocate a DataMsg and all of the data it points to */
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void free_datamsg(DataMsg datamsg);
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/* Convert a string of hex chars to a buffer of unsigned chars. */
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void argv_to_buf(unsigned char **bufp, size_t *lenp, char *arg);
added
removed
toolkit/parse.h
