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Diffstat (limited to '')
-rw-r--r-- | wsutil/curve25519.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/wsutil/curve25519.h b/wsutil/curve25519.h new file mode 100644 index 0000000..1eda020 --- /dev/null +++ b/wsutil/curve25519.h @@ -0,0 +1,34 @@ +/** @file + * NaCl/Sodium-compatible API for Curve25519 cryptography. + * + * Copyright (c) 2018, Peter Wu <peter@lekensteyn.nl> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef __CURVE25519_H__ +#define __CURVE25519_H__ + +#include <wireshark.h> + +/* + * Computes Q = X25519(n, P). In other words, given the secret key n, the public + * key P, compute the shared secret Q. Each key is 32 bytes long. + * Returns 0 on success or -1 on failure. + */ +WS_DLL_PUBLIC +int crypto_scalarmult_curve25519(unsigned char *q, const unsigned char *n, + const unsigned char *p); + +/* + * Computes the Curve25519 32-byte public key Q from the 32-byte secret key n. + * Returns 0 on success or -1 on failure. + */ +WS_DLL_PUBLIC +int crypto_scalarmult_curve25519_base(unsigned char *q, const unsigned char *n); + +#endif /* __CURVE25519_H__ */ |