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    3 .TH "NSEC3HASH" "8" "@RELEASE_DATE@" "@BIND9_VERSION@" "BIND 9"
    4 .SH NAME
    5 nsec3hash \- generate NSEC3 hash
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   33 .SH SYNOPSIS
   34 .sp
   35 \fBnsec3hash\fP {salt} {algorithm} {iterations} {domain}
   36 .sp
   37 \fBnsec3hash\fP \fB\-r\fP {algorithm} {flags} {iterations} {salt} {domain}
   38 .SH DESCRIPTION
   39 .sp
   40 \fBnsec3hash\fP generates an NSEC3 hash based on a set of NSEC3
   41 parameters. This can be used to check the validity of NSEC3 records in a
   42 signed zone.
   43 .sp
   44 If this command is invoked as \fBnsec3hash \-r\fP, it takes arguments in an
   45 order matching the first four fields of an NSEC3 record, followed by the
   46 domain name: algorithm, flags, iterations, salt, domain. This makes it
   47 convenient to copy and paste a portion of an NSEC3 or NSEC3PARAM record
   48 into a command line to confirm the correctness of an NSEC3 hash.
   49 .SH ARGUMENTS
   50 .INDENT 0.0
   51 .TP
   52 .B \fBsalt\fP
   53 The salt provided to the hash algorithm.
   54 .TP
   55 .B \fBalgorithm\fP
   56 A number indicating the hash algorithm. Currently the only supported
   57 hash algorithm for NSEC3 is SHA\-1, which is indicated by the number
   58 1; consequently "1" is the only useful value for this argument.
   59 .TP
   60 .B \fBflags\fP
   61 Provided for compatibility with NSEC3 record presentation format, but
   62 ignored since the flags do not affect the hash.
   63 .TP
   64 .B \fBiterations\fP
   65 The number of additional times the hash should be performed.
   66 .TP
   67 .B \fBdomain\fP
   68 The domain name to be hashed.
   69 .UNINDENT
   70 .SH SEE ALSO
   71 .sp
   72 BIND 9 Administrator Reference Manual, \fI\%RFC 5155\fP\&.
   73 .SH AUTHOR
   74 Internet Systems Consortium
   75 .SH COPYRIGHT
   76 2020, Internet Systems Consortium
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