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55 lines
1.8 KiB
Groff
55 lines
1.8 KiB
Groff
.\" Copyright (C) The libssh2 project and its contributors.
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.\" SPDX-License-Identifier: BSD-3-Clause
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.TH libssh2_agent_sign 3 "1 Oct 2022" "libssh2" "libssh2"
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.SH NAME
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libssh2_agent_sign - sign data, with the help of ssh-agent
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.SH SYNOPSIS
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.nf
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#include <libssh2.h>
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int
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libssh2_agent_sign(LIBSSH2_AGENT *agent,
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struct libssh2_agent_publickey *identity,
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unsigned char **sig,
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size_t *s_len,
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const unsigned char *data,
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size_t d_len,
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const char *method,
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unsigned int method_len);
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.fi
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.SH DESCRIPTION
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\fIagent\fP - ssh-agent handle as returned by
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.BR libssh2_agent_init(3)
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\fIidentity\fP - Public key to authenticate with, as returned by
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.BR libssh2_agent_get_identity(3)
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\fIsig\fP - A pointer to a buffer in which to place the signature. The caller
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is responsible for freeing the signature with LIBSSH2_FREE.
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\fIs_len\fP - A pointer to the length of the sig parameter.
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\fIdata\fP - The data to sign.
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\fId_len\fP - The length of the data parameter.
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\fImethod\fP - A buffer indicating the signing method. This should match the
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string at the start of identity->blob.
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\fImethod_len\fP - The length of the method parameter.
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Sign data using an ssh-agent. This function can be used in a callback
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registered with libssh2_session_callback_set(3) using
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LIBSSH2_CALLBACK_AUTHAGENT_SIGN to sign an authentication challenge from a
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server. However, the client is responsible for implementing the code that calls
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this callback in response to a SSH2_AGENTC_SIGN_REQUEST message.
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.SH RETURN VALUE
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Returns 0 if succeeded, or a negative value for error.
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.SH AVAILABILITY
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Added in libssh2 1.11.0
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.SH SEE ALSO
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.BR libssh2_agent_init(3)
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.BR libssh2_agent_get_identity(3)
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.BR libssh2_agent_userauth(3)
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.BR libssh2_session_callback_set(3)
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