ルートゾーンKSK/dnskey_queryについて、ここに記述してください。

DNSSECなしで、DNSKEYを問い合わせる。RRSIGなしの返事

$ dig -t dnskey . @a.root-servers.net
{{{
; <<>> DiG 9.11.1 <<>> -t dnskey . @a.root-servers.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47294
;; flags: qr aa rd; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;.				IN	DNSKEY

;; ANSWER SECTION:
.			172800	IN	DNSKEY	257 3 8 AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxhJhVVLOyQbSEW0O8gcCjF FVQUTf6v58fLjwBd0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJRkxoX bfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/VHL496M/QZxkjf5/Efucp2gaD X6RS6CXpoY68LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtuA6G3LQpz W5hOA2hzCTMjJPJ8LbqF6dsV6DoBQzgul0sGIcGOYl7OyQdXfZ57relS Qageu+ipAdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwhYB4N7knNnulq QxA+Uk1ihz0=
.			172800	IN	DNSKEY	256 3 8 AwEAAYvxrQOOujKdZz+37P+oL4l7e35/0diH/mZITGjlp4f81ZGQK42H NxSfkiSahinPR3t0YQhjC393NX4TorSiTJy76TBWddNOkC/IaGqcb4er U+nQ75k2Lf0oIpA7qTCk3UkzYBqhKDHHAr2UditE7uFLDcoX4nBLCoaH 5FtfxhUqyTlRu0RBXAEuKO+rORTFP0XgA5vlzVmXtwCkb9G8GknHuO1j VAwu3syPRVHErIbaXs1+jahvWWL+Do4wd+lA+TL3+pUk+zKTD2ncq7Zb JBZddo9T7PZjvntWJUzIHIMWZRFAjpi+V7pgh0o1KYXZgDUbiA1s9oLA L1KLSdmoIYM=
.			172800	IN	DNSKEY	257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3 +/4RgWOq7HrxRixHlFlExOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kv ArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgCmr3EgVLrjyBxWezF 0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+e oZG+SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfd RUfhHdY6+cn8HFRm+2hM8AnXGXws9555KrUB5qihylGa8subX2Nn6UwN R1AkUTV74bU=

;; Query time: 117 msec
;; SERVER: 198.41.0.4#53(198.41.0.4)
;; WHEN: Mon Jul 24 20:24:56 JST 2017
;; MSG SIZE  rcvd: 853
}}}


$ dig +dnssec -t dnskey . @a.root-servers.net
{{{
; <<>> DiG 9.11.1 <<>> +dnssec -t dnskey . @a.root-servers.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57999
;; flags: qr aa rd; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
;; QUESTION SECTION:
;.				IN	DNSKEY

;; ANSWER SECTION:
.			172800	IN	DNSKEY	257 3 8 AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxhJhVVLOyQbSEW0O8gcCjF FVQUTf6v58fLjwBd0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJRkxoX bfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/VHL496M/QZxkjf5/Efucp2gaD X6RS6CXpoY68LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtuA6G3LQpz W5hOA2hzCTMjJPJ8LbqF6dsV6DoBQzgul0sGIcGOYl7OyQdXfZ57relS Qageu+ipAdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwhYB4N7knNnulq QxA+Uk1ihz0=
.			172800	IN	DNSKEY	256 3 8
AwEAAYvxrQOOujKdZz+37P+oL4l7e35/0diH/mZITGjlp4f81ZGQK42H NxSfkiSahinPR3t0YQhjC393NX4TorSiTJy76TBWddNOkC/IaGqcb4er U+nQ75k2Lf0oIpA7qTCk3UkzYBqhKDHHAr2UditE7uFLDcoX4nBLCoaH 5FtfxhUqyTlRu0RBXAEuKO+rORTFP0XgA5vlzVmXtwCkb9G8GknHuO1j VAwu3syPRVHErIbaXs1+jahvWWL+Do4wd+lA+TL3+pUk+zKTD2ncq7Zb JBZddo9T7PZjvntWJUzIHIMWZRFAjpi+V7pgh0o1KYXZgDUbiA1s9oLA L1KLSdmoIYM=
.			172800	IN	DNSKEY	257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3 +/4RgWOq7HrxRixHlFlExOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kv ArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgCmr3EgVLrjyBxWezF 0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+e oZG+SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfd RUfhHdY6+cn8HFRm+2hM8AnXGXws9555KrUB5qihylGa8subX2Nn6UwN R1AkUTV74bU=
.			172800	IN	RRSIG	DNSKEY 8 0 172800 20170811000000 20170721000000 19036 . kp0zHRYVgEY1Ki1usB2wm5VCVG+DkpANei5yEGsiHSUIgpBsLHMCtzz3 ztmmgPIJmcJZyq49ZcMg02MpZ2EHwIgqxqzyb3rX7KYwWHowjmdZz8c0 hSIN99c6tVwfiTHstLbS/6ya1FF1r4J6h2LZh+SeetZHw32Af1AP4DjG UEwufS2WKQOxp0IGpM9dITuZuuGFK+gB8t2CQniDJ90FUrmltWjfL7tY GfUcRNPMlIVgO4gLtRlV1ysm+iHAptF9zrWUjUex2lDvOKt+O40AyzSW aeiFJCPhrtOT0tt4i8h7PjlBm+WmkO0ZLn0rJasJnE4ww6o8zcxGubyJ rCMHjA==

;; Query time: 116 msec
;; SERVER: 198.41.0.4#53(198.41.0.4)
;; WHEN: Sat Jul 22 08:02:44 JST 2017
;; MSG SIZE  rcvd: 1139
}}}