mirror of https://github.com/tp4a/teleport
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
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/*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2014 by Aris Adamantiadis
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef ED25519_H_
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#define ED25519_H_
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#include "libssh/priv.h"
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/**
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* @defgroup ed25519 ed25519 API
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* @internal
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* @brief API for DJB's ed25519
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*
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* @{ */
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#define ED25519_PK_LEN 32
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#define ED25519_SK_LEN 64
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#define ED25519_SIG_LEN 64
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typedef uint8_t ed25519_pubkey[ED25519_PK_LEN];
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typedef uint8_t ed25519_privkey[ED25519_SK_LEN];
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typedef uint8_t ed25519_signature[ED25519_SIG_LEN];
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/** @internal
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* @brief generate an ed25519 key pair
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* @param[out] pk generated public key
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* @param[out] sk generated secret key
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* @return 0 on success, -1 on error.
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* */
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int crypto_sign_ed25519_keypair(ed25519_pubkey pk, ed25519_privkey sk);
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/** @internal
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* @brief sign a message with ed25519
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* @param[out] sm location to store the signed message.
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* Its length should be mlen + 64.
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* @param[out] smlen pointer to the size of the signed message
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* @param[in] m message to be signed
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* @param[in] mlen length of the message to be signed
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* @param[in] sk secret key to sign the message with
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* @return 0 on success.
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*/
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int crypto_sign_ed25519(
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unsigned char *sm,unsigned long long *smlen,
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const unsigned char *m,unsigned long long mlen,
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const ed25519_privkey sk);
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/** @internal
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* @brief "open" and verify the signature of a signed message
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* @param[out] m location to store the verified message.
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* Its length should be equal to smlen.
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* @param[out] mlen pointer to the size of the verified message
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* @param[in] sm signed message to verify
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* @param[in] smlen length of the signed message to verify
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* @param[in] pk public key used to sign the message
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* @returns 0 on success (supposedly).
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*/
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int crypto_sign_ed25519_open(
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unsigned char *m,unsigned long long *mlen,
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const unsigned char *sm,unsigned long long smlen,
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const ed25519_pubkey pk);
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/** @} */
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#endif /* ED25519_H_ */
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