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81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/*
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* Secure eXtended Message Passing framework
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* Secure eXtended Transport layer implementation: (libsxt)
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* - very similar to SSH2/TLS
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* - using already proven and tested crypto algos
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* - better than TLS for message passing
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*
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* PublicPrivateKeyPairs operation API
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*
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* (c) Alexander Vdolainen 2016 <avdolainen@zoho.com>
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*
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* libsxmp is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License 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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*
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* libsxmp is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU 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 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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*/
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#ifndef __SXT_SXTKEY_H__
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#define __SXT_SXTKEY_H__
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/* some taken code , copyright left in the header */
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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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/* flags */
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#define SXT_PPKP_PRIVATE (1 << 2)
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#define SXT_PPKP_PUBLIC (1 << 1)
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/* here the supported types in SXT */
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#define PPKP_ED25519 0xa
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typedef struct sxtkey_type {
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uint8_t type;
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uint8_t flags;
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ed25519_pubkey *pubkey;
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ed25519_privkey *privkey;
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uint64_t hash;
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void *priv;
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} sxtkey_t;
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typedef struct sxtsignature_type {
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uint8_t type;
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ed25519_signature *sig;
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} sxtsignature_t;
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/* API */
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/* allocate a key */
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sxtkey_t *sxt_key_alloc(void);
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/* burn i.e. zero all stuff within key structure to be
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* hidden in core dump
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*/
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void sxt_key_burn(sxtkey_t *);
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/* free sxt key structure */
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void sxt_key_free(sxtkey_t *);
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/* generate a keypair, depends on type and optional parameter given
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* the last one leaved for stable API, current ed25519 keys doesn't
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* need them
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*/
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int sxt_key_generate(sxtkey_t *, int , int );
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#endif /* __SXT_SXTKEY_H__ */
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