# dnssec-signkey

## Name

dnssec-signkey -- DNSSEC key set signing tool

## Synopsis

dnssec-signkey [-a] [-c class] [-s start-time] [-e end-time] [-h] [-p] [-r randomdev] [-v level] {keyset} {key...}

## DESCRIPTION

dnssec-signkey signs a keyset. Typically the keyset will be for a child zone, and will have been generated by dnssec-makekeyset. The child zone's keyset is signed with the zone keys for its parent zone. The output file is of the form `signedkey-nnnn.`, where `nnnn` is the zone name.

## OPTIONS

-a

  Verify all generated signatures.

-c class

  Specifies the DNS class of the key sets.

-s start-time

  Specify the date and time when the generated SIG records become valid. This can be either an absolute or relative time. An absolute start time is indicated by a number in YYYYMMDDHHMMSS notation; 20000530144500 denotes 14:45:00 UTC on May 30th, 2000. A relative start time is indicated by +N, which is N seconds from the current time. If no start-time is specified, the current time is used.

-e end-time

  Specify the date and time when the generated SIG records expire. As with start-time, an absolute time is indicated in YYYYMMDDHHMMSS notation. A time relative to the start time is indicated with +N, which is N seconds from the start time. A time relative to the current time is indicated with now+N. If no end-time is specified, 30 days from the start time is used as a default.

-h

  Prints a short summary of the options and arguments to dnssec-signkey.

-p

  Use pseudo-random data when signing the zone. This is faster, but less secure, than using real random data. This option may be useful when signing large zones or when the entropy source is limited.

-r randomdev

  Specifies the source of randomness. If the operating system does not provide a `/dev/random` or equivalent device, the default source of randomness is keyboard input. `randomdev` specifies the name of a character device or file containing random data to be used instead of the default. The special value `keyboard` indicates that keyboard input should be used.

-v level

  Sets the debugging level.

keyset

  The file containing the child's keyset.

key

  The keys used to sign the child's keyset.

## EXAMPLE

The DNS administrator for a DNSSEC-aware `.com` zone would use the following command to sign the `keyset` file for `example.com` created by dnssec-makekeyset with a key generated by dnssec-keygen:

`dnssec-signkey keyset-example.com. Kcom.+003+51944`

In this example, dnssec-signkey creates the file `signedkey-example.com.`, which contains the `example.com` keys and the signatures by the `.com` keys.

## SEE ALSO

dnssec-keygen(8), dnssec-makekeyset(8), dnssec-signzone(8).

## AUTHOR

Internet Systems Consortium