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0001d04e55
back the user ID that was used when the key was created and append it to the filename the key is written to (if it is not the default). Avoids keys being clobbered if the user created multiple resident keys with the same application string but different user IDs. feedback Pedro Martelletto; ok markus NB. increments SSH_SK_VERSION_MAJOR OpenBSD-Commit-ID: dbd658b5950f583106d945641a634bc6562dd3a3
80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
/* $OpenBSD: ssh-sk.h,v 1.11 2021/10/28 02:54:18 djm Exp $ */
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/*
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* Copyright (c) 2019 Google LLC
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _SSH_SK_H
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#define _SSH_SK_H 1
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struct sshbuf;
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struct sshkey;
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struct sk_option;
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/* Version of protocol expected from ssh-sk-helper */
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#define SSH_SK_HELPER_VERSION 5
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/* ssh-sk-helper messages */
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#define SSH_SK_HELPER_ERROR 0 /* Only valid H->C */
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#define SSH_SK_HELPER_SIGN 1
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#define SSH_SK_HELPER_ENROLL 2
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#define SSH_SK_HELPER_LOAD_RESIDENT 3
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struct sshsk_resident_key {
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struct sshkey *key;
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uint8_t *user_id;
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size_t user_id_len;
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};
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/*
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* Enroll (generate) a new security-key hosted private key of given type
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* via the specified provider middleware.
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* If challenge_buf is NULL then a random 256 bit challenge will be used.
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*
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* Returns 0 on success or a ssherr.h error code on failure.
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*
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* If successful and the attest_data buffer is not NULL then attestation
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* information is placed there.
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*/
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int sshsk_enroll(int type, const char *provider_path, const char *device,
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const char *application, const char *userid, uint8_t flags,
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const char *pin, struct sshbuf *challenge_buf,
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struct sshkey **keyp, struct sshbuf *attest);
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/*
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* Calculate an ECDSA_SK or ED25519_SK signature using the specified key
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* and provider middleware.
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*
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* Returns 0 on success or a ssherr.h error code on failure.
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*/
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int sshsk_sign(const char *provider_path, struct sshkey *key,
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u_char **sigp, size_t *lenp, const u_char *data, size_t datalen,
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u_int compat, const char *pin);
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/*
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* Enumerates and loads all SSH-compatible resident keys from a security
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* key.
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*
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* Returns 0 on success or a ssherr.h error code on failure.
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*/
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int sshsk_load_resident(const char *provider_path, const char *device,
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const char *pin, u_int flags, struct sshsk_resident_key ***srksp,
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size_t *nsrksp);
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/* Free an array of sshsk_resident_key (as returned from sshsk_load_resident) */
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void sshsk_free_resident_keys(struct sshsk_resident_key **srks, size_t nsrks);
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#endif /* _SSH_SK_H */
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