{"id":21555,"date":"2024-04-27T08:02:33","date_gmt":"2024-04-27T08:02:33","guid":{"rendered":"https:\/\/heylocate.mobi\/fr\/?post_type=termin&p=21555"},"modified":"2024-04-30T16:55:22","modified_gmt":"2024-04-30T16:55:22","slug":"gps-spoofing","status":"publish","type":"termin","link":"https:\/\/heylocate.mobi\/fr\/termin\/gps-spoofing\/","title":{"rendered":"GPS Spoofing"},"content":{"rendered":"\n

Qu’est-ce que le spoofing GPS ?<\/h2>\n\n\n\n

Le spoofing GPS<\/strong> est la manipulation intentionnelle des signaux du Syst\u00e8me de Navigation par Satellite Global (GNSS)<\/a> afin de tromper les r\u00e9cepteurs pour qu’ils fournissent des donn\u00e9es de localisation ou de temps inexactes. Cette manipulation est r\u00e9alis\u00e9e en diffusant de faux signaux qui imitent ceux transmis par de v\u00e9ritables satellites.<\/p>\n\n\n\n

\"Illustration
Repr\u00e9sentation graphique de l’usurpation de GPS, lorsqu’un appareil re\u00e7oit de fausses donn\u00e9es, ce qui fausse sa v\u00e9ritable position.<\/figcaption><\/figure>\n\n\n\n

M\u00e9canismes du spoofing GPS<\/h3>\n\n\n\n

Les m\u00e9canismes utilis\u00e9s dans le spoofing GPS varient, mais impliquent souvent la transmission de signaux contrefaits qui surpassent les signaux l\u00e9gitimes re\u00e7us par le r\u00e9cepteur. Une m\u00e9thode courante est l’attaque de carry-off, o\u00f9 l’attaquant installe un \u00e9metteur de haute puissance pr\u00e8s du r\u00e9cepteur cibl\u00e9 et diffuse des signaux faux plus puissants que ceux des satellites GPS. En cons\u00e9quence, le r\u00e9cepteur, incapable de diff\u00e9rencier les vrais signaux des faux, se verrouille sur les signaux usurp\u00e9s et produit des informations de positionnement inexactes.<\/p>\n\n\n\n

Strat\u00e9gies pour combattre le spoofing GPS<\/h2>\n\n\n\n

Pour att\u00e9nuer la menace du spoofing GPS, plusieurs strat\u00e9gies peuvent \u00eatre employ\u00e9es :<\/p>\n\n\n\n

Strat\u00e9gie<\/th>Description<\/th><\/tr><\/thead>
Dissuasion Physique<\/strong><\/td>Techniques telles que l’occultation d’antennes rendent plus difficile pour les attaquants de cibler les r\u00e9cepteurs. Cela peut impliquer de blinder les antennes ou de les placer dans des lieux moins accessibles<\/td><\/tr>
R\u00e9ception Multi-GNSS<\/strong><\/td>Utiliser les signaux de multiples constellations GNSS (GPS<\/a>, GLONASS, BeiDou) peut aider \u00e0 identifier les \u00e9carts caus\u00e9s par le spoofing. Les incoh\u00e9rences entre les syst\u00e8mes de navigation peuvent indiquer une attaque<\/td><\/tr>
Techniques de D\u00e9tection Avanc\u00e9es<\/strong><\/td>Analyser les donn\u00e9es de divers capteurs du v\u00e9hicule (par exemple, tachym\u00e8tres, acc\u00e9l\u00e9rom\u00e8tres) pour comparer le mouvement attendu avec les informations GPS. Les \u00e9carts peuvent potentiellement r\u00e9v\u00e9ler un spoofing<\/td><\/tr>
Syst\u00e8mes de Communication Coop\u00e9rative<\/strong><\/td>Exploiter la communication entre v\u00e9hicules (par exemple, CACC) pour d\u00e9tecter les incoh\u00e9rences dans les donn\u00e9es de positionnement relatif, r\u00e9v\u00e9lant potentiellement des attaques de spoofing sur les v\u00e9hicules autonomes<\/td><\/tr>
Recherche et D\u00e9veloppement Continus<\/strong><\/td>Les efforts continus sont cruciaux pour devancer les attaquants. Cela pourrait impliquer l’exploration de nouvelles technologies anti-spoofing et l’am\u00e9lioration des m\u00e9thodes de d\u00e9tection existantes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

R\u00e9f\u00e9rences<\/h2>\n\n\n\n
    \n
  1. Coffed, Jeff (February 2014). \u201cThe Threat of GPS Jamming The Risk to an Information Utility<\/a>\u201d (PDF). Exelis.<\/li>\n\n\n\n
  2. Jon S. Warner; Roger G. Johnston (December 2003). \u201cGPS Spoofing Countermeasures<\/a>\u201d. homelandsecurity.org.<\/li>\n\n\n\n
  3. What Is GPS Spoofing and How Do You Defend Against It<\/a>? | Okta<\/li>\n\n\n\n
  4. Spoofing attack<\/a> – Wikipedia<\/li>\n\n\n\n
  5. What is GPS spoofing<\/a>? | McAfee<\/li>\n\n\n\n
  6. GPS Spoofing – DataVisor Digital Fraud Wiki<\/a><\/li>\n\n\n\n
  7. GPS Spoofing<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    Qu’est-ce que le spoofing GPS ? Le spoofing GPS est la manipulation intentionnelle des signaux du Syst\u00e8me de Navigation par Satellite Global (GNSS) afin de tromper les r\u00e9cepteurs pour qu’ils fournissent des donn\u00e9es de localisation ou de temps inexactes. Cette…<\/p>\n","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","acf":[],"yoast_head":"\nQu'est-ce que le spoofing GPS ?<\/title>\n<meta name=\"description\" content=\"D\u00e9finition, signification et explication de GPS spoofing. 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