2021-10-01 23:52:55 +00:00
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.\" Copyright (c) 2018 Yubico AB. All rights reserved.
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.\" Use of this source code is governed by a BSD-style
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.\" license that can be found in the LICENSE file.
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.\"
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.Dd $Mdocdate: May 23 2018 $
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.Dt FIDO_ASSERT_ALLOW_CRED 3
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.Os
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.Sh NAME
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.Nm fido_assert_allow_cred
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2023-04-26 16:38:17 +00:00
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.Nd allow a credential in a FIDO2 assertion
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.Sh SYNOPSIS
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.In fido.h
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.Ft int
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.Fn fido_assert_allow_cred "fido_assert_t *assert" "const unsigned char *ptr" "size_t len"
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.Sh DESCRIPTION
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The
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.Fn fido_assert_allow_cred
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function adds
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.Fa ptr
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to the list of credentials allowed in
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.Fa assert ,
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where
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.Fa ptr
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points to a credential ID of
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.Fa len
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bytes.
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A copy of
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.Fa ptr
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is made, and no references to the passed pointer are kept.
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If
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.Fn fido_assert_allow_cred
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fails, the existing list of allowed credentials is preserved.
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.Pp
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For the format of a FIDO2 credential ID, please refer to the
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Web Authentication (webauthn) standard.
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.Sh RETURN VALUES
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The error codes returned by
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.Fn fido_assert_allow_cred
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are defined in
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.In fido/err.h .
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On success,
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.Dv FIDO_OK
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is returned.
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.Sh SEE ALSO
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.Xr fido_assert_new 3 ,
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.Xr fido_assert_set_authdata 3 ,
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.Xr fido_dev_get_assert 3
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