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dnssec-dsfromkey(8) [netbsd man page]

DNSSEC-DSFROMKEY(8)						       BIND9						       DNSSEC-DSFROMKEY(8)

dnssec-dsfromkey - DNSSEC DS RR generation tool SYNOPSIS
dnssec-dsfromkey [-v level] [-1] [-2] [-a alg] [-l domain] [-T TTL] {keyfile} dnssec-dsfromkey {-s} [-1] [-2] [-a alg] [-K directory] [-l domain] [-s] [-c class] [-T TTL] [-f file] [-A] [-v level] {dnsname} DESCRIPTION
dnssec-dsfromkey outputs the Delegation Signer (DS) resource record (RR), as defined in RFC 3658 and RFC 4509, for the given key(s). OPTIONS
-1 Use SHA-1 as the digest algorithm (the default is to use both SHA-1 and SHA-256). -2 Use SHA-256 as the digest algorithm. -a algorithm Select the digest algorithm. The value of algorithm must be one of SHA-1 (SHA1), SHA-256 (SHA256), GOST or SHA-384 (SHA384). These values are case insensitive. -T TTL Specifies the TTL of the DS records. -K directory Look for key files (or, in keyset mode, keyset- files) in directory. -f 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. If file is set to "-", then the zone data is read from the standard input. This makes it possible to use the output of the dig command as input, as in: dig dnskey | dnssec-dsfromkey -f - -A 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. -l 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. -s Keyset mode: in place of the keyfile name, the argument is the DNS domain name of a keyset file. -c class Specifies the DNS class (default is IN). Useful only in keyset or zone file mode. -v level Sets the debugging level. EXAMPLE
To build the SHA-256 DS RR from the keyfile name, the following command would be issued: dnssec-dsfromkey -2 The command would print something like: IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94 FILES
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. CAVEAT
A keyfile error can give a "file not found" even if the file exists. SEE ALSO
dnssec-keygen(8), dnssec-signzone(8), BIND 9 Administrator Reference Manual, RFC 3658, RFC 4431. RFC 4509. AUTHOR
Internet Systems Consortium COPYRIGHT
Copyright (C) 2008-2012 Internet Systems Consortium, Inc. ("ISC") BIND9 August 26, 2009 DNSSEC-DSFROMKEY(8)

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DNSSEC-KEYGEN(8)						       BIND9							  DNSSEC-KEYGEN(8)

dnssec-keygen - DNSSEC key generation tool SYNOPSIS
dnssec-keygen {-a algorithm} {-b keysize} {-n nametype} [-c class] [-e] [-f flag] [-g generator] [-h] [-k] [-p protocol] [-r randomdev] [-s strength] [-t type] [-v level] {name} DESCRIPTION
dnssec-keygen generates keys for DNSSEC (Secure DNS), as defined in RFC 2535 and RFC 4034. It can also generate keys for use with TSIG (Transaction Signatures), as defined in RFC 2845. OPTIONS
-a algorithm Selects the cryptographic algorithm. The value of algorithm must be one of RSAMD5 (RSA) or RSASHA1, DSA, NSEC3RSASHA1, NSEC3DSA, DH (Diffie Hellman), or HMAC-MD5. These values are case insensitive. Note 1: that for DNSSEC, RSASHA1 is a mandatory to implement algorithm, and DSA is recommended. For TSIG, HMAC-MD5 is mandatory. Note 2: HMAC-MD5 and DH automatically set the -k flag. -b keysize Specifies the number of bits in the key. The choice of key size depends on the algorithm used. RSAMD5 / RSASHA1 keys must be between 512 and 2048 bits. Diffie Hellman keys must be between 128 and 4096 bits. DSA keys must be between 512 and 1024 bits and an exact multiple of 64. HMAC-MD5 keys must be between 1 and 512 bits. -n nametype Specifies the owner type of the key. The value of nametype must either be ZONE (for a DNSSEC zone key (KEY/DNSKEY)), HOST or ENTITY (for a key associated with a host (KEY)), USER (for a key associated with a user(KEY)) or OTHER (DNSKEY). These values are case insensitive. Defaults to ZONE for DNSKEY generation. -c class Indicates that the DNS record containing the key should have the specified class. If not specified, class IN is used. -e If generating an RSAMD5/RSASHA1 key, use a large exponent. -f flag Set the specified flag in the flag field of the KEY/DNSKEY record. The only recognized flag is KSK (Key Signing Key) DNSKEY. -g generator If generating a Diffie Hellman key, use this generator. Allowed values are 2 and 5. If no generator is specified, a known prime from RFC 2539 will be used if possible; otherwise the default is 2. -h Prints a short summary of the options and arguments to dnssec-keygen. -k Generate KEY records rather than DNSKEY records. -p protocol Sets the protocol value for the generated key. The protocol is a number between 0 and 255. The default is 3 (DNSSEC). Other possible values for this argument are listed in RFC 2535 and its successors. -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. -s strength Specifies the strength value of the key. The strength is a number between 0 and 15, and currently has no defined purpose in DNSSEC. -t type Indicates the use of the key. type must be one of AUTHCONF, NOAUTHCONF, NOAUTH, or NOCONF. The default is AUTHCONF. AUTH refers to the ability to authenticate data, and CONF the ability to encrypt data. -v level Sets the debugging level. GENERATED KEYS
When dnssec-keygen completes successfully, it prints a string of the form Knnnn.+aaa+iiiii to the standard output. This is an identification string for the key it has generated. o nnnn is the key name. o aaa is the numeric representation of the algorithm. o iiiii is the key identifier (or footprint). dnssec-keygen creates two files, with names based on the printed string. Knnnn.+aaa+iiiii.key contains the public key, and Knnnn.+aaa+iiiii.private contains the private key. The .key file contains a DNS KEY record that can be inserted into a zone file (directly or with a $INCLUDE statement). The .private file contains algorithm-specific fields. For obvious security reasons, this file does not have general read permission. Both .key and .private files are generated for symmetric encryption algorithms such as HMAC-MD5, even though the public and private key are equivalent. EXAMPLE
To generate a 768-bit DSA key for the domain, the following command would be issued: dnssec-keygen -a DSA -b 768 -n ZONE The command would print a string of the form: In this example, dnssec-keygen creates the files and SEE ALSO
dnssec-signzone(8), BIND 9 Administrator Reference Manual, RFC 2539, RFC 2845, RFC 4033. AUTHOR
Internet Systems Consortium COPYRIGHT
Copyright (C) 2004, 2005, 2007, 2008 Internet Systems Consortium, Inc. ("ISC") Copyright (C) 2000-2003 Internet Software Consortium. BIND9 June 30, 2000 DNSSEC-KEYGEN(8)
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