2008-01-10 18:08:05 +01:00
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.TH tor-gencert 1 "" Jan-2008 ""
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.\" manual page by Nick Mathewson
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.SH NAME
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.LP
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tor-gencert \- Generate certs and keys for Tor directory authorities
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.SH SYNOPSIS
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\fBtor-gencert\fP\ [-h|--help] [-v] [-r|--reuse] [--create-identity-key] [-i \fIid_file\fP] [-c \fIcert_file\fP] [-m \fInum\fP] [-a \fIaddress\fP:\fIport\fP]
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.SH DESCRIPTION
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\fBtor-gencert\fR generates certificates and private keys for use by Tor
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directory authorities running the v3 Tor directory protocol, as used by Tor
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0.2.0 and later. If you are not running a directory authority, you don't
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need to use tor-gencert.
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.PP
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Every directory authority has a long term authority \fIidentity key\fP (which
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is distinct from the identity key it uses as a Tor server); this key should
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be kept offline in a secure location. It is used to certify shorter-lived
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\fIsigning keys\fP, which are kept online and used by the directory authority
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to sign votes and consensus documents.
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.PP
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After you use this program to generate a signing key and a certificate, copy
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those files to the keys subdirectory of your Tor process, and send Tor a
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SIGHUP signal. DO NOT COPY THE IDENTITY KEY.
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.SH OPTIONS
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\fB-v\fP
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Display verbose output.
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.LP
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.TP
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\fB-h\fP or \fB--help\fP
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Display help text and exit.
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.LP
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.TP
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\fB-r\fP or \fB--reuse\fP
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Generate a new certificate, but not a new signing key. This can be
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used to change the address or lifetime associated with a given key.
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.LP
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.TP
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\fB--create-identity-key\fP
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Generate a new identity key. You should only use this option the first
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time you run tor-gencert; in the future, you should use the identity
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key that's already there.
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.LP
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.TP
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\fB-i \fR\fIFILENAME\fP
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Read the identity key from the specified file. If the file is not present
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and --create-identity-key is provided, create the identity key in the
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specified file. Default: "./authority_identity_key"
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.LP
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.TP
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\fB-s \fR\fIFILENAME\fP
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Write the signing key to the specified file. Default:
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"./authority_signing_key"
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.LP
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.TP
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\fB-c \fR\fIFILENAME\fP
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Write the certificate to the specified file.
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Default: "./authority_certificate"
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.LP
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.TP
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\fB-m \fR\fINUM\fP
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Number of months that the certificate should be valid. Default: 12.
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.LP
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.TP
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2008-02-22 20:07:52 +01:00
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\fB--passphrase-fd \fR\fIFILEDES\fP
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Filedescriptor to read the file descriptor from. Ends at the first
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NUL or newline. Default: read from the terminal.
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.LP
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.TP
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2008-01-10 18:08:05 +01:00
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\fB-a \fR\fIaddress\fR:\fIport\fP
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If provided, advertise the address:port combination as this authority's
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preferred directory port in its certificate. If the address is a hostname,
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the hostname is resolved to an IP before it's published.
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.SH BUGS
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This probably doesn't run on Windows. That's not a big issue, since we
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don't really want authorities to be running on Windows anyway.
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.SH SEE ALSO
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.BR tor (1)
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.PP
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See also the "dir-spec.txt" file, distributed with Tor.
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.SH AUTHORS
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Roger Dingledine <arma@mit.edu>, Nick Mathewson <nickm@alum.mit.edu>.
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