DNS_SIG_DATA (Windows Embedded CE 6.0)
1/6/2010
This structure represents a DNS signature (SIG) record.
Syntax
typedef struct {
LPTSTR pNameSigner;
WORD wTypeCovered;
BYTE chAlgorithm;
BYTE chLabelCount;
DWORD dwOriginalTtl;
DWORD dwExpiration;
DWORD dwTimeSigned;
WORD wKeyTag;
WORD Pad;
BYTE Signature[1];
} DNS_SIG_DATA, *PDNS_SIG_DATA;
Members
- pNameSigner
[in] Pointer to a string representing the name of the signer that generated the record
- wTypeCovered
[in] Type of RR covered by the signature
chAlgorithm
[in] Algorithm used with the key specified in the RR. The assigned values are shown in the following table.Value Meaning 1
RSA/MD5 (RFC 2537)
2
Diffie-Hellman (RFC 2539)
3
DSA (RFC 2536)
4
Elliptic curve cryptography
- chLabelCount
[in] Number of labels in the original signature RR owner name. The count does not include the NULL label for the root, nor any initial wildcards.
- dwOriginalTtl
[in] TTL value of the RR set signed by the signature RR. A TTL of zero (0) indicates that the time to live is 10 minutes.
- dwExpiration
[in] Expiration date, expressed in seconds since the beginning of January 1, 1970, Greenwich Mean Time (GMT), excluding leap seconds.
- dwTimeSigned
[in] Date and time at which the signature becomes valid, expressed in seconds since the beginning of January 1, 1970, Greenwich Mean Time (GMT), excluding leap seconds.
- wKeyTag
[in] Method used to choose a key that verifies a signature. See RFC 2535, Appendix C for the method used to calculate a KeyTag.
- Pad
[in] Reserved. Used to keep byte field aligned.
- Signature
[in] Signature, represented in base 64, formatted as defined in RFC 2535, Appendix A.
Remarks
This structure is used in conjunction with the DNS_RECORD structure to programmatically manage DNS entries.
Requirements
| Header | windns.h |
| Windows Embedded CE | Windows CE 5.0 and later |