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https://github.com/zeromq/libzmq.git
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e015a0f8b9
Solution: add a crypto [de-]initialiser, refcounted and serialised through critical sections. This is necessary as utility APIs such as zmq_curve_keypair also call into the sodium/tweetnacl libraries and need the initialisation outside of the zmq context. Also the libsodium documentation explicitly says that sodium_init must not be called concurrently from multiple threads, which could have happened until now. Also the randombytes_close function does not appear to be thread safe either. This change guarantees that the library is initialised only once at any given time across the whole program. Fixes #2632
76 lines
2.8 KiB
C
76 lines
2.8 KiB
C
/*
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Copyright (c) 2016-2017 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TWEETNACL_H
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#define TWEETNACL_H
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#if defined (ZMQ_USE_TWEETNACL)
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#define crypto_box_SECRETKEYBYTES 32
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#define crypto_box_BOXZEROBYTES 16
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#define crypto_box_NONCEBYTES 24
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#define crypto_box_ZEROBYTES 32
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#define crypto_box_PUBLICKEYBYTES 32
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#define crypto_box_BEFORENMBYTES 32
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#define crypto_secretbox_KEYBYTES 32
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#define crypto_secretbox_NONCEBYTES 24
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#define crypto_secretbox_ZEROBYTES 32
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#define crypto_secretbox_BOXZEROBYTES 16
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typedef unsigned char u8;
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typedef unsigned long u32;
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typedef unsigned long long u64;
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typedef long long i64;
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typedef i64 gf[16];
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#ifdef __cplusplus
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extern "C" {
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#endif
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void randombytes (unsigned char *, unsigned long long);
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// Do not call manually! Use random_close from random.hpp
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int randombytes_close (void);
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// Do not call manually! Use random_open from random.hpp
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int sodium_init (void);
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int crypto_box_keypair(u8 *y,u8 *x);
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int crypto_box_afternm(u8 *c,const u8 *m,u64 d,const u8 *n,const u8 *k);
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int crypto_box_open_afternm(u8 *m,const u8 *c,u64 d,const u8 *n,const u8 *k);
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int crypto_box(u8 *c,const u8 *m,u64 d,const u8 *n,const u8 *y,const u8 *x);
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int crypto_box_open(u8 *m,const u8 *c,u64 d,const u8 *n,const u8 *y,const u8 *x);
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int crypto_box_beforenm(u8 *k,const u8 *y,const u8 *x);
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int crypto_scalarmult_base(u8 *q,const u8 *n);
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int crypto_secretbox(u8 *c,const u8 *m,u64 d,const u8 *n,const u8 *k);
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int crypto_secretbox_open(u8 *m,const u8 *c,u64 d,const u8 *n,const u8 *k);
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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