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# get the metadata signing certificate on md.incommon.org
# and display the HTTP response header
$ MD_CERT_LOCATION=http://md.incommon.org/certs/inc-md-cert.pem
$ MD_CERT_PATH=/path/to/inc-md-cert.pem
$ /usr/bin/curl --silent --dump-header /dev/tty $MD_CERT_LOCATION > $CERT$MD_CERT_PATH
HTTP/1.1 200 OK
Date: Thu, 19 Dec 2013 14:01:00 GMT
Server: Apache
Last-Modified: Wed, 18 Dec 2013 21:08:31 GMT
ETag: "150037-4fd-4edd5727611c0"
Accept-Ranges: bytes
Content-Length: 1277
Connection: close
Content-Type: text/plain; charset=UTF-8

# compute the SHA-1 and SHA-256 fingerprints of the metadata signing certificate
$ /bin/cat $CERT$MD_CERT_PATH | /usr/bin/openssl x509 -sha1 -noout -fingerprint
SHA1 Fingerprint=7D:B4:BB:28:D3:D5:C8:52:E0:80:B3:62:43:2A:AF:34:B2:A6:0E:DD
$ /bin/cat $CERT$MD_CERT_PATH | /usr/bin/openssl x509 -sha256 -noout -fingerprint
SHA256 Fingerprint=2F:9D:9A:A1:FE:D1:92:F0:64:A8:C6:31:5D:39:FA:CF:1E:08:84:0D:27:21:F3:31:B1:70:A5:2B:88:81:9F:5B