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50 lines
1.5 KiB
50 lines
1.5 KiB
5 years ago
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.TH "LIGHTNING-CHECKMESSAGE" "7" "" "" "lightning-checkmessage"
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.SH NAME
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lightning-checkmessage - Command to check a signature is from a node
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.SH SYNOPSIS
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\fBcheckmessage\fR \fImessage\fR \fIzbase\fR [\fIpubkey\fR]
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.SH DESCRIPTION
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The \fBcheckmessage\fR RPC command is the counterpart to
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\fBsignmessage\fR: given a node id (\fIpubkey\fR), signature (\fIzbase\fR) and a
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\fImessage\fR, it verifies that the signature was generated by that node
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for that message (more technically: by someone who knows that node's
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secret)\.
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As a special case, if \fIpubkey\fR is not specified, we will try every
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known node key (as per \fIlistnodes\fR), and verification succeeds if it
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matches for any one of them\. Note: this is implemented far more
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efficiently than trying each one, so performance is not a concern\.
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.SH RETURN VALUE
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On correct usage, an object with attribute \fIverified\fR will be
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returned\.
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If \fIverified\fR is true, the signature was generated by the returned
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\fIpubkey\fR for that given message\. \fIpubkey\fR is the one specified as
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input, or if none was specified, the known node which must have
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produced this signature\.
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If \fIverified\fR is false, the signature is meaningless\. \fIpubkey\fR may
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also be returned, which is they \fIpubkey\fR (if any) for which this
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signature would be valid\. This is usually not useful\.
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.SH AUTHOR
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Rusty Russell \fI<rusty@rustcorp.com.au\fR> is mainly responsible\.
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.SH SEE ALSO
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\fBlightning-signmessage\fR(7)
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.SH RESOURCES
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Main web site: \fIhttps://github.com/ElementsProject/lightning\fR
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