dnssec-dsfromkey — DNSSEC DS RR generation tool
dnssec-dsfromkey [-v ] [level-1] [-2] [-a ] [alg-l ] {keyfile}domain
dnssec-dsfromkey {-s} [-1] [-2] [-a ] [alg-K ] [directory-l ] [domain-s] [-c ] [class-f ] [file-A] [-v ] {dnsname}level
dnssec-dsfromkey outputs the Delegation Signer (DS) resource record (RR), as defined in RFC 3658 and RFC 4509, for the given key(s).
Use SHA-1 as the digest algorithm (the default is to use both SHA-1 and SHA-256).
Use SHA-256 as the digest algorithm.
algorithm
Select the digest algorithm. The value of
algorithm must be one of SHA-1 (SHA1) or
SHA-256 (SHA256). These values are case insensitive.
directory
Look for key files (or, in keyset mode,
keyset- files) in
directory.
file
Zone file mode: in place of the keyfile name, the argument is
the DNS domain name of a zone master file, which can be read
from file. If the zone name is the same as
file, then it may be omitted.
Include ZSK's when generating DS records. Without this option, only keys which have the KSK flag set will be converted to DS records and printed. Useful only in zone file mode.
domain
Generate a DLV set instead of a DS set. The specified
domain is appended to the name for each
record in the set.
The DNSSEC Lookaside Validation (DLV) RR is described
in RFC 4431.
Keyset mode: in place of the keyfile name, the argument is the DNS domain name of a keyset file.
classSpecifies the DNS class (default is IN). Useful only in keyset or zone file mode.
levelSets the debugging level.
To build the SHA-256 DS RR from the
Kexample.com.+003+26160
keyfile name, the following command would be issued:
dnssec-dsfromkey -2 Kexample.com.+003+26160
The command would print something like:
example.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94
The keyfile can be designed by the key identification
Knnnn.+aaa+iiiii or the full file name
Knnnn.+aaa+iiiii.key as generated by
dnssec-keygen(8).
The keyset file name is built from the directory,
the string keyset- and the
dnsname.