What is GPS' 19 year rollover and does it present a cybersecurity issue?Why would GPS availability be reduced by high demand (or solar eclipse)?How does GPS receiver synchronize time with GPS satellites?Does GPS spoofing ever come from space? How are spoofings usually detected?How far up have satellites used a GNSS for positioning, and how does the precision degrade with altitude?Does GPS work at ISS?How does GPS receiver synchronize time with GPS satellites?How does GPS work exactly?Why are the GPS constellation satellites in such a high orbit?How does GPS module gets time even before a fix?What is the magnetic equatorial anomaly and how is GAGAN unique in its ability to compensate?TLE and RINEX gps differencesWhat are RAIM Service Outage, RNP and EnRoute on GPS DOP maps? What does the red line mean?Does GPS spoofing ever come from space? How are spoofings usually detected?
What makes Graph invariants so useful/important?
How can the DM most effectively choose 1 out of an odd number of players to be targeted by an attack or effect?
Download, install and reboot computer at night if needed
Why is the design of haulage companies so “special”?
Can I make popcorn with any corn?
How does one intimidate enemies without having the capacity for violence?
Is Social Media Science Fiction?
What is the command to reset a PC without deleting any files
The use of multiple foreign keys on same column in SQL Server
Concept of linear mappings are confusing me
A Journey Through Space and Time
Non-Jewish family in an Orthodox Jewish Wedding
Shell script can be run only with sh command
Is it possible to make sharp wind that can cut stuff from afar?
Copenhagen passport control - US citizen
XeLaTeX and pdfLaTeX ignore hyphenation
Why is "Reports" in sentence down without "The"
Calculus Optimization - Point on graph closest to given point
Why is this code 6.5x slower with optimizations enabled?
Infinite past with a beginning?
Motorized valve interfering with button?
What Brexit solution does the DUP want?
Can Medicine checks be used, with decent rolls, to completely mitigate the risk of death from ongoing damage?
What is the offset in a seaplane's hull?
What is GPS' 19 year rollover and does it present a cybersecurity issue?
Why would GPS availability be reduced by high demand (or solar eclipse)?How does GPS receiver synchronize time with GPS satellites?Does GPS spoofing ever come from space? How are spoofings usually detected?How far up have satellites used a GNSS for positioning, and how does the precision degrade with altitude?Does GPS work at ISS?How does GPS receiver synchronize time with GPS satellites?How does GPS work exactly?Why are the GPS constellation satellites in such a high orbit?How does GPS module gets time even before a fix?What is the magnetic equatorial anomaly and how is GAGAN unique in its ability to compensate?TLE and RINEX gps differencesWhat are RAIM Service Outage, RNP and EnRoute on GPS DOP maps? What does the red line mean?Does GPS spoofing ever come from space? How are spoofings usually detected?
$begingroup$
The NPR new item and audio podcast The Global Positioning System Resets talks about a 19 year cycling of something in the GPS system, but it's not clear what it is.
Every 19 years, the Global Positioning System resets a measure of time built into its program. The latest rollover is Saturday and NPR's Scott Simon asks cybersecurity expert Frank Cilluffo about it.
It's Y2K for GPS. The Global Positioning System was designed with a limit for the number of weeks it could count. Every 19 years, the program reaches that limit and the count resets. That happens tonight. What might happen tonight? Frank Cilluffo is director of the McCrary Institute for Critical Infrastructure Protection and Cyber Systems. He joins us now from the campus of Auburn University. Thanks so much for being with us.
- What is it exactly that cycles or "rolls over" every 19 years?
- Is it in any way analogous to y2k?
- Is there any cybersecurity issue associated with the rollover more subtle than GPS simply not working for some users? For example, is there some hacking potential associated with this moment?
gps gnss
asked 3 hours ago
uhohuhoh
40.5k18149511
$endgroup$
add a comment |
$begingroup$
The NPR new item and audio podcast The Global Positioning System Resets talks about a 19 year cycling of something in the GPS system, but it's not clear what it is.
Every 19 years, the Global Positioning System resets a measure of time built into its program. The latest rollover is Saturday and NPR's Scott Simon asks cybersecurity expert Frank Cilluffo about it.
It's Y2K for GPS. The Global Positioning System was designed with a limit for the number of weeks it could count. Every 19 years, the program reaches that limit and the count resets. That happens tonight. What might happen tonight? Frank Cilluffo is director of the McCrary Institute for Critical Infrastructure Protection and Cyber Systems. He joins us now from the campus of Auburn University. Thanks so much for being with us.
- What is it exactly that cycles or "rolls over" every 19 years?
- Is it in any way analogous to y2k?
- Is there any cybersecurity issue associated with the rollover more subtle than GPS simply not working for some users? For example, is there some hacking potential associated with this moment?
gps gnss
asked 3 hours ago
uhohuhoh
40.5k18149511
$endgroup$
1
$begingroup$
potential close-voters; there are several good questions and answers here about the details of how the GPS constellation of satellites and their receivers on Earth work. See for example How does GPS receiver synchronize time with GPS satellites? as well as Does GPS spoofing ever come from space? How are spoofings usually detected? and especially Why would GPS availability be reduced by high demand (or solar eclipse)? This question is on topic!
$endgroup$
– uhoh
39 mins ago
add a comment |
$begingroup$
The NPR new item and audio podcast The Global Positioning System Resets talks about a 19 year cycling of something in the GPS system, but it's not clear what it is.
Every 19 years, the Global Positioning System resets a measure of time built into its program. The latest rollover is Saturday and NPR's Scott Simon asks cybersecurity expert Frank Cilluffo about it.
It's Y2K for GPS. The Global Positioning System was designed with a limit for the number of weeks it could count. Every 19 years, the program reaches that limit and the count resets. That happens tonight. What might happen tonight? Frank Cilluffo is director of the McCrary Institute for Critical Infrastructure Protection and Cyber Systems. He joins us now from the campus of Auburn University. Thanks so much for being with us.
- What is it exactly that cycles or "rolls over" every 19 years?
- Is it in any way analogous to y2k?
- Is there any cybersecurity issue associated with the rollover more subtle than GPS simply not working for some users? For example, is there some hacking potential associated with this moment?
gps gnss
asked 3 hours ago
uhohuhoh
40.5k18149511
$endgroup$
The NPR new item and audio podcast The Global Positioning System Resets talks about a 19 year cycling of something in the GPS system, but it's not clear what it is.
Every 19 years, the Global Positioning System resets a measure of time built into its program. The latest rollover is Saturday and NPR's Scott Simon asks cybersecurity expert Frank Cilluffo about it.
It's Y2K for GPS. The Global Positioning System was designed with a limit for the number of weeks it could count. Every 19 years, the program reaches that limit and the count resets. That happens tonight. What might happen tonight? Frank Cilluffo is director of the McCrary Institute for Critical Infrastructure Protection and Cyber Systems. He joins us now from the campus of Auburn University. Thanks so much for being with us.
- What is it exactly that cycles or "rolls over" every 19 years?
- Is it in any way analogous to y2k?
- Is there any cybersecurity issue associated with the rollover more subtle than GPS simply not working for some users? For example, is there some hacking potential associated with this moment?
gps gnss
gps gnss
asked 3 hours ago
uhohuhoh
40.5k18149511
asked 3 hours ago
uhohuhoh
40.5k18149511
edited 2 hours ago
uhoh
asked 3 hours ago
uhohuhoh
40.5k18149511
asked 3 hours ago
uhohuhoh
40.5k18149511
asked 3 hours ago
uhohuhoh
40.5k18149511
40.5k18149511
1
$begingroup$
potential close-voters; there are several good questions and answers here about the details of how the GPS constellation of satellites and their receivers on Earth work. See for example How does GPS receiver synchronize time with GPS satellites? as well as Does GPS spoofing ever come from space? How are spoofings usually detected? and especially Why would GPS availability be reduced by high demand (or solar eclipse)? This question is on topic!
$endgroup$
– uhoh
39 mins ago
add a comment |
1
$begingroup$
potential close-voters; there are several good questions and answers here about the details of how the GPS constellation of satellites and their receivers on Earth work. See for example How does GPS receiver synchronize time with GPS satellites? as well as Does GPS spoofing ever come from space? How are spoofings usually detected? and especially Why would GPS availability be reduced by high demand (or solar eclipse)? This question is on topic!
$endgroup$
– uhoh
39 mins ago
1
1
$begingroup$
potential close-voters; there are several good questions and answers here about the details of how the GPS constellation of satellites and their receivers on Earth work. See for example How does GPS receiver synchronize time with GPS satellites? as well as Does GPS spoofing ever come from space? How are spoofings usually detected? and especially Why would GPS availability be reduced by high demand (or solar eclipse)? This question is on topic!
$endgroup$
– uhoh
39 mins ago
$begingroup$
potential close-voters; there are several good questions and answers here about the details of how the GPS constellation of satellites and their receivers on Earth work. See for example How does GPS receiver synchronize time with GPS satellites? as well as Does GPS spoofing ever come from space? How are spoofings usually detected? and especially Why would GPS availability be reduced by high demand (or solar eclipse)? This question is on topic!
$endgroup$
– uhoh
39 mins ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
The field in the protocol that specifies the week number is a 10-bit value. In most computers, when an (unsigned) integer exceeds its maximum value, it wraps around to zero. This is roughly similar to Y2K, though is more like the upcoming year 2038 problem (but with weeks instead of seconds). This 10-bit value will wrap around, and the GPS system will hold the same time value as it held back in 1999.
Yes, this can cause some security issues. Many people use GPS signals as a way to tell time instead of its traditional use with geolocation. Accurate time is extremely important for security, such as for verifying that a certificate is valid and has not expired. If an operating system exclusively uses GPS to calibrate its internal clock, this rollover could, if handled improperly in firmware, result in certificate validation errors or even the failure to check for security updates. See also How important is local time for security?.
answered 1 hour ago
forestforest
1214
New contributor
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
To double check, a GPS receiver unit without properly updated software (or firmware) could return a properly formatted yet incorrect value for GPS time, and this problem is independent of the quality of the geolocation data?
$endgroup$
– uhoh
53 mins ago
1
$begingroup$
@uhoh Correct. If that invalid time is used for purposes that require accurate time for security, this could result in a security issue.
$endgroup$
– forest
51 mins ago
$begingroup$
thanks! fyi Does GPS spoofing ever come from space? How are spoofings usually detected? is somewhat security-related.
$endgroup$
– uhoh
38 mins ago
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
return StackExchange.using("mathjaxEditing", function ()
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix)
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
);
);
, "mathjax-editing");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "508"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fspace.stackexchange.com%2fquestions%2f35362%2fwhat-is-gps-19-year-rollover-and-does-it-present-a-cybersecurity-issue%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
The field in the protocol that specifies the week number is a 10-bit value. In most computers, when an (unsigned) integer exceeds its maximum value, it wraps around to zero. This is roughly similar to Y2K, though is more like the upcoming year 2038 problem (but with weeks instead of seconds). This 10-bit value will wrap around, and the GPS system will hold the same time value as it held back in 1999.
Yes, this can cause some security issues. Many people use GPS signals as a way to tell time instead of its traditional use with geolocation. Accurate time is extremely important for security, such as for verifying that a certificate is valid and has not expired. If an operating system exclusively uses GPS to calibrate its internal clock, this rollover could, if handled improperly in firmware, result in certificate validation errors or even the failure to check for security updates. See also How important is local time for security?.
answered 1 hour ago
forestforest
1214
New contributor
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
To double check, a GPS receiver unit without properly updated software (or firmware) could return a properly formatted yet incorrect value for GPS time, and this problem is independent of the quality of the geolocation data?
$endgroup$
– uhoh
53 mins ago
1
$begingroup$
@uhoh Correct. If that invalid time is used for purposes that require accurate time for security, this could result in a security issue.
$endgroup$
– forest
51 mins ago
$begingroup$
thanks! fyi Does GPS spoofing ever come from space? How are spoofings usually detected? is somewhat security-related.
$endgroup$
– uhoh
38 mins ago
add a comment |
$begingroup$
The field in the protocol that specifies the week number is a 10-bit value. In most computers, when an (unsigned) integer exceeds its maximum value, it wraps around to zero. This is roughly similar to Y2K, though is more like the upcoming year 2038 problem (but with weeks instead of seconds). This 10-bit value will wrap around, and the GPS system will hold the same time value as it held back in 1999.
Yes, this can cause some security issues. Many people use GPS signals as a way to tell time instead of its traditional use with geolocation. Accurate time is extremely important for security, such as for verifying that a certificate is valid and has not expired. If an operating system exclusively uses GPS to calibrate its internal clock, this rollover could, if handled improperly in firmware, result in certificate validation errors or even the failure to check for security updates. See also How important is local time for security?.
answered 1 hour ago
forestforest
1214
New contributor
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
To double check, a GPS receiver unit without properly updated software (or firmware) could return a properly formatted yet incorrect value for GPS time, and this problem is independent of the quality of the geolocation data?
$endgroup$
– uhoh
53 mins ago
1
$begingroup$
@uhoh Correct. If that invalid time is used for purposes that require accurate time for security, this could result in a security issue.
$endgroup$
– forest
51 mins ago
$begingroup$
thanks! fyi Does GPS spoofing ever come from space? How are spoofings usually detected? is somewhat security-related.
$endgroup$
– uhoh
38 mins ago
add a comment |
$begingroup$
The field in the protocol that specifies the week number is a 10-bit value. In most computers, when an (unsigned) integer exceeds its maximum value, it wraps around to zero. This is roughly similar to Y2K, though is more like the upcoming year 2038 problem (but with weeks instead of seconds). This 10-bit value will wrap around, and the GPS system will hold the same time value as it held back in 1999.
Yes, this can cause some security issues. Many people use GPS signals as a way to tell time instead of its traditional use with geolocation. Accurate time is extremely important for security, such as for verifying that a certificate is valid and has not expired. If an operating system exclusively uses GPS to calibrate its internal clock, this rollover could, if handled improperly in firmware, result in certificate validation errors or even the failure to check for security updates. See also How important is local time for security?.
answered 1 hour ago
forestforest
1214
New contributor
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
The field in the protocol that specifies the week number is a 10-bit value. In most computers, when an (unsigned) integer exceeds its maximum value, it wraps around to zero. This is roughly similar to Y2K, though is more like the upcoming year 2038 problem (but with weeks instead of seconds). This 10-bit value will wrap around, and the GPS system will hold the same time value as it held back in 1999.
Yes, this can cause some security issues. Many people use GPS signals as a way to tell time instead of its traditional use with geolocation. Accurate time is extremely important for security, such as for verifying that a certificate is valid and has not expired. If an operating system exclusively uses GPS to calibrate its internal clock, this rollover could, if handled improperly in firmware, result in certificate validation errors or even the failure to check for security updates. See also How important is local time for security?.
answered 1 hour ago
forestforest
1214
New contributor
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 hour ago
answered 1 hour ago
forestforest
1214
New contributor
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 1 hour ago
forestforest
1214
answered 1 hour ago
forestforest
1214
1214
New contributor
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
forest is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
To double check, a GPS receiver unit without properly updated software (or firmware) could return a properly formatted yet incorrect value for GPS time, and this problem is independent of the quality of the geolocation data?
$endgroup$
– uhoh
53 mins ago
1
$begingroup$
@uhoh Correct. If that invalid time is used for purposes that require accurate time for security, this could result in a security issue.
$endgroup$
– forest
51 mins ago
$begingroup$
thanks! fyi Does GPS spoofing ever come from space? How are spoofings usually detected? is somewhat security-related.
$endgroup$
– uhoh
38 mins ago
add a comment |
$begingroup$
To double check, a GPS receiver unit without properly updated software (or firmware) could return a properly formatted yet incorrect value for GPS time, and this problem is independent of the quality of the geolocation data?
$endgroup$
– uhoh
53 mins ago
1
$begingroup$
@uhoh Correct. If that invalid time is used for purposes that require accurate time for security, this could result in a security issue.
$endgroup$
– forest
51 mins ago
$begingroup$
thanks! fyi Does GPS spoofing ever come from space? How are spoofings usually detected? is somewhat security-related.
$endgroup$
– uhoh
38 mins ago
$begingroup$
To double check, a GPS receiver unit without properly updated software (or firmware) could return a properly formatted yet incorrect value for GPS time, and this problem is independent of the quality of the geolocation data?
$endgroup$
– uhoh
53 mins ago
$begingroup$
To double check, a GPS receiver unit without properly updated software (or firmware) could return a properly formatted yet incorrect value for GPS time, and this problem is independent of the quality of the geolocation data?
$endgroup$
– uhoh
53 mins ago
1
1
$begingroup$
@uhoh Correct. If that invalid time is used for purposes that require accurate time for security, this could result in a security issue.
$endgroup$
– forest
51 mins ago
$begingroup$
@uhoh Correct. If that invalid time is used for purposes that require accurate time for security, this could result in a security issue.
$endgroup$
– forest
51 mins ago
$begingroup$
thanks! fyi Does GPS spoofing ever come from space? How are spoofings usually detected? is somewhat security-related.
$endgroup$
– uhoh
38 mins ago
$begingroup$
thanks! fyi Does GPS spoofing ever come from space? How are spoofings usually detected? is somewhat security-related.
$endgroup$
– uhoh
38 mins ago
add a comment |
Thanks for contributing an answer to Space Exploration Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fspace.stackexchange.com%2fquestions%2f35362%2fwhat-is-gps-19-year-rollover-and-does-it-present-a-cybersecurity-issue%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
$begingroup$
potential close-voters; there are several good questions and answers here about the details of how the GPS constellation of satellites and their receivers on Earth work. See for example How does GPS receiver synchronize time with GPS satellites? as well as Does GPS spoofing ever come from space? How are spoofings usually detected? and especially Why would GPS availability be reduced by high demand (or solar eclipse)? This question is on topic!
$endgroup$
– uhoh
39 mins ago