Add libotr/etc sources

1 files changed, 154 insertions, 0 deletions

diff --git a/libotr/libotr-4.1.1/src/privkey.h b/libotr/libotr-4.1.1/src/privkey.h
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+++ b/libotr/libotr-4.1.1/src/privkey.h
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+/*
+ *  Off-the-Record Messaging library
+ *  Copyright (C) 2004-2012  Ian Goldberg, Chris Alexander, Willy Lew,
+ *  			     Lisa Du, Nikita Borisov
+ *                           <otr@cypherpunks.ca>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of version 2.1 of the GNU Lesser General
+ *  Public License as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __PRIVKEY_H__
+#define __PRIVKEY_H__
+
+#include <stdio.h>
+#include "privkey-t.h"
+#include "userstate.h"
+
+/* The length of a string representing a human-readable version of a
+ * fingerprint (including the trailing NUL) */
+#define OTRL_PRIVKEY_FPRINT_HUMAN_LEN 45
+
+/* Convert a 20-byte hash value to a 45-byte human-readable value */
+void otrl_privkey_hash_to_human(
+	char human[OTRL_PRIVKEY_FPRINT_HUMAN_LEN],
+	const unsigned char hash[20]);
+
+/* Calculate a human-readable hash of our DSA public key.  Return it in
+ * the passed fingerprint buffer.  Return NULL on error, or a pointer to
+ * the given buffer on success. */
+char *otrl_privkey_fingerprint(OtrlUserState us,
+	char fingerprint[OTRL_PRIVKEY_FPRINT_HUMAN_LEN],
+	const char *accountname, const char *protocol);
+
+/* Calculate a raw hash of our DSA public key.  Return it in the passed
+ * fingerprint buffer.  Return NULL on error, or a pointer to the given
+ * buffer on success. */
+unsigned char *otrl_privkey_fingerprint_raw(OtrlUserState us,
+	unsigned char hash[20], const char *accountname, const char *protocol);
+
+/* Read a sets of private DSA keys from a file on disk into the given
+ * OtrlUserState. */
+gcry_error_t otrl_privkey_read(OtrlUserState us, const char *filename);
+
+/* Read a sets of private DSA keys from a FILE* into the given
+ * OtrlUserState.  The FILE* must be open for reading. */
+gcry_error_t otrl_privkey_read_FILEp(OtrlUserState us, FILE *privf);
+
+/* Free the memory associated with the pending privkey list */
+void otrl_privkey_pending_forget_all(OtrlUserState us);
+
+/* Begin a private key generation that will potentially take place in
+ * a background thread.  This routine must be called from the main
+ * thread.  It will set *newkeyp, which you can pass to
+ * otrl_privkey_generate_calculate in a background thread.  If it
+ * returns gcry_error(GPG_ERR_EEXIST), then a privkey creation for
+ * this accountname/protocol is already in progress, and *newkeyp will
+ * be set to NULL. */
+gcry_error_t otrl_privkey_generate_start(OtrlUserState us,
+	const char *accountname, const char *protocol, void **newkeyp);
+
+/* Do the private key generation calculation.  You may call this from a
+ * background thread.  When it completes, call
+ * otrl_privkey_generate_finish from the _main_ thread. */
+gcry_error_t otrl_privkey_generate_calculate(void *newkey);
+
+/* Call this from the main thread only.  It will write the newly created
+ * private key into the given file and store it in the OtrlUserState. */
+gcry_error_t otrl_privkey_generate_finish(OtrlUserState us,
+	void *newkey, const char *filename);
+
+/* Call this from the main thread only.  It will write the newly created
+ * private key into the given FILE* (which must be open for reading and
+ * writing) and store it in the OtrlUserState. */
+gcry_error_t otrl_privkey_generate_finish_FILEp(OtrlUserState us,
+	void *newkey, FILE *privf);
+
+/* Call this from the main thread only, in the event that the background
+ * thread generating the key is cancelled.  The newkey is deallocated,
+ * and must not be used further. */
+void otrl_privkey_generate_cancelled(OtrlUserState us, void *newkey);
+
+/* Generate a private DSA key for a given account, storing it into a
+ * file on disk, and loading it into the given OtrlUserState.  Overwrite any
+ * previously generated keys for that account in that OtrlUserState. */
+gcry_error_t otrl_privkey_generate(OtrlUserState us, const char *filename,
+	const char *accountname, const char *protocol);
+
+/* Generate a private DSA key for a given account, storing it into a
+ * FILE*, and loading it into the given OtrlUserState.  Overwrite any
+ * previously generated keys for that account in that OtrlUserState.
+ * The FILE* must be open for reading and writing. */
+gcry_error_t otrl_privkey_generate_FILEp(OtrlUserState us, FILE *privf,
+	const char *accountname, const char *protocol);
+
+/* Read the fingerprint store from a file on disk into the given
+ * OtrlUserState.  Use add_app_data to add application data to each
+ * ConnContext so created. */
+gcry_error_t otrl_privkey_read_fingerprints(OtrlUserState us,
+	const char *filename,
+	void (*add_app_data)(void *data, ConnContext *context),
+	void  *data);
+
+/* Read the fingerprint store from a FILE* into the given
+ * OtrlUserState.  Use add_app_data to add application data to each
+ * ConnContext so created.  The FILE* must be open for reading. */
+gcry_error_t otrl_privkey_read_fingerprints_FILEp(OtrlUserState us,
+	FILE *storef,
+	void (*add_app_data)(void *data, ConnContext *context),
+	void  *data);
+
+/* Write the fingerprint store from a given OtrlUserState to a file on disk. */
+gcry_error_t otrl_privkey_write_fingerprints(OtrlUserState us,
+	const char *filename);
+
+/* Write the fingerprint store from a given OtrlUserState to a FILE*.
+ * The FILE* must be open for writing. */
+gcry_error_t otrl_privkey_write_fingerprints_FILEp(OtrlUserState us,
+	FILE *storef);
+
+/* Fetch the private key from the given OtrlUserState associated with
+ * the given account */
+OtrlPrivKey *otrl_privkey_find(OtrlUserState us, const char *accountname,
+	const char *protocol);
+
+/* Forget a private key */
+void otrl_privkey_forget(OtrlPrivKey *privkey);
+
+/* Forget all private keys in a given OtrlUserState. */
+void otrl_privkey_forget_all(OtrlUserState us);
+
+/* Sign data using a private key.  The data must be small enough to be
+ * signed (i.e. already hashed, if necessary).  The signature will be
+ * returned in *sigp, which the caller must free().  Its length will be
+ * returned in *siglenp. */
+gcry_error_t otrl_privkey_sign(unsigned char **sigp, size_t *siglenp,
+	OtrlPrivKey *privkey, const unsigned char *data, size_t len);
+
+/* Verify a signature on data using a public key.  The data must be
+ * small enough to be signed (i.e. already hashed, if necessary). */
+gcry_error_t otrl_privkey_verify(const unsigned char *sigbuf, size_t siglen,
+	unsigned short pubkey_type, gcry_sexp_t pubs,
+	const unsigned char *data, size_t len);
+
+#endif