{"id":760,"date":"2021-01-17T05:39:15","date_gmt":"2021-01-16T18:05:40","guid":{"rendered":"https:\/\/exampracticetests.com\/ISC\/SSCP\/systems-security-certified-practitioner-sscp-question0752\/"},"modified":"2021-01-17T05:44:38","modified_gmt":"2021-01-17T05:44:38","slug":"systems-security-certified-practitioner-sscp-question0752","status":"publish","type":"post","link":"https:\/\/exampracticetests.com\/ISC\/SSCP\/systems-security-certified-practitioner-sscp-question0752\/","title":{"rendered":"Systems Security Certified Practitioner &#8211; SSCP &#8211; Question0752"},"content":{"rendered":"<div class=\"question\">What is used to bind a document to its creation at a particular time? <br \/><strong><br \/>A.<\/strong> Network Time Protocol (NTP) <br \/><strong>B.<\/strong> Digital Signature <br \/><strong>C.<\/strong> Digital Timestamp <br \/><strong>D.<\/strong> Certification Authority (CA)<\/div>\n<p><\/p>\n<style> .hidden-div{ display:none } <\/style>\n<p>\t\t\t\t\t\t\t<button onclick=\"getElementById('hidden-div').style.display = 'block'\"> Show Answer <\/button> <button onclick=\"getElementById('hidden-div').style.display = 'none'\">Hide Answer<\/button><\/p>\n<div class=\"hidden-div\" id=\"hidden-div\"><span style=\"\"><\/p>\n<div class=\"answer\">Correct Answer: <strong>C<\/strong><\/div>\n<p><strong>Explanation:<\/strong> <\/p>\n<div class=\"explanation\">\nWhile a digital signature binds a document to the possessor of a particular key, a digital timestamp binds a document to its creation at a particular time.<br \/>\nTrusted timestamping is the process of securely keeping track of the creation and modification time of a document. Security here means that no one \u2014 not even the owner of the document \u2014 should be able to change it once it has been recorded provided that the timestamper&#8217;s integrity is never compromised.<br \/>\nThe administrative aspect involves setting up a publicly available, trusted timestamp management infrastructure to collect, process and renew timestamps or to make use of a commercially available time stamping service.<br \/>\nA modern example of using a Digital Timestamp is the case of an industrial research organization that may later need to prove, for patent purposes, that they made a particular discovery on a particular date; since magnetic media can be altered easily, this may be a nontrivial issue. One possible solution is for a researcher to compute and record in a hardcopy laboratory notebook a cryptographic hash of the relevant data file. In the future, should there be a need to prove the version of this file retrieved from a backup tape has not been altered, the hash function could be recomputed and compared with the hash value recorded in that paper notebook.<br \/>\nAccording to the RFC 3161 standard, a trusted timestamp is a timestamp issued by a trusted third party (TTP) acting as a Time Stamping Authority (TSA). It is used to prove the existence of certain data before a certain point (e.g. contracts, research data, medical records,&#8230;) without the possibility that the owner can backdate the timestamps. Multiple TSAs can be used to increase reliability and reduce vulnerability.<br \/>\nThe newer ANSI ASC X9.95 Standard for trusted timestamps augments the RFC 3161 standard with data-level security requirements to ensure data integrity against a reliable time source that is provable to any third party. This standard has been applied to authenticating digitally signed data for regulatory compliance, financial transactions, and legal evidence.<br \/>\n<img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full\" src=\"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-content\/uploads\/exam\/__Page_373_Image_0001.jpg\" \/><br \/>\nDigital TimeStamp<br \/>\nThe following are incorrect answers:<br \/>\nNetwork Time Protocol (NTP) is used to achieve high accuracy time synchronization for computers across a network. A Certification Authority (CA) is the entity responsible for the issuance of digital certificates. A Digital Signature provides integrity and authentication but does not bind a document to a specific time it was created.<br \/>\nReference used for this question:<br \/>\n<a href=\"http:\/\/en.m.wikipedia.org\/wiki\/File:Trusted_timestamping.gif\" title=\"External link\" rel=\"nofollow noopener\" target=\"_blank\">http:\/\/en.m.wikipedia.org\/wiki\/File:Trusted_timestamping.gif<\/a> and <a href=\"http:\/\/en.wikipedia.org\/wiki\/Trusted_timestamping\" title=\"External link\" rel=\"nofollow noopener\" target=\"_blank\">http:\/\/en.wikipedia.org\/wiki\/Trusted_timestamping<\/a><\/div>\n<p><\/strong><\/span> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>What is used to bind a document to its creation at a particular time? A. Network Time Protocol (NTP) B. Digital Signature C. Digital Timestamp D. Certification Authority (CA) Show Answer Hide Answer Correct Answer: C Explanation: While a digital signature binds a document to the possessor of a particular key, a digital timestamp binds [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[1078,755,3],"class_list":["post-760","post","type-post","status-publish","format-standard","hentry","category-systems-security-certified-practitioner-sscp","tag-choices","tag-question-0752","tag-systems-security-certified-practitioner-sscp"],"_links":{"self":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/760","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/comments?post=760"}],"version-history":[{"count":1,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/760\/revisions"}],"predecessor-version":[{"id":1836,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/760\/revisions\/1836"}],"wp:attachment":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/media?parent=760"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/categories?post=760"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/tags?post=760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}