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/* $OpenBSD: ssh-sk.h,v 1.1 2019/10/31 21:16:20 djm Exp $ */
/*
* Copyright (c) 2019 Google LLC
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _SSH_SK_H
#define _SSH_SK_H 1
struct sshbuf;
struct sshkey;
/*
* Enroll (generate) a new security-key hosted private key via the specified
* provider middleware.
* If challenge_buf is NULL then a random 256 bit challenge will be used.
*
* Returns 0 on success or a ssherr.h error code on failure.
*
* If successful and the attest_data buffer is not NULL then attestation
* information is placed there.
*/
int sshsk_enroll(const char *provider_path, const char *application,
uint8_t flags, struct sshbuf *challenge_buf, struct sshkey **keyp,
struct sshbuf *attest);
/*
* Calculate an ECDSA_SK signature using the specified key and provider
* middleware.
*
* Returns 0 on success or a ssherr.h error code on failure.
*/
int sshsk_ecdsa_sign(const char *provider_path, const struct sshkey *key,
u_char **sigp, size_t *lenp, const u_char *data, size_t datalen,
u_int compat);
#endif /* _SSH_SK_H */
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