CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "waset.org",cType: 'non-interactive',cRay: '9134d275797efde6',cH: 'fdlVpEMm5Ooe8.G3RBPHq82A2aVWVd7ZaDWKgTZ.230-1739785291-1.2.1.1-OqrTOz2EyebjWh8nje4ty_IVH04VriTGh5VA0ISUWgRtH1WchqUVtt3gqjIpf0AN',cUPMDTk: "\/cryptography-and-data-security-conference-in-april-2025-in-paris?__cf_chl_tk=e_FtxyqrlGp3HM.kcXmbOFKW9vx_QcjXjjHAKT0ow4s-1739785291-1.0.1.1-sbo2pmMFi_XemjGZXoSXLJ7QvoVh.X6815cSLzjga3M",cFPWv: 'b',cITimeS: '1739785291',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/cryptography-and-data-security-conference-in-april-2025-in-paris?__cf_chl_f_tk=e_FtxyqrlGp3HM.kcXmbOFKW9vx_QcjXjjHAKT0ow4s-1739785291-1.0.1.1-sbo2pmMFi_XemjGZXoSXLJ7QvoVh.X6815cSLzjga3M",md: "hMnJYgH6tBPHNvdxd2zTNOm4DbvpFJCi18tsMRXlhJY-1739785291-1.2.1.1-.xjLTzgRMLoQ2ZrU8vF39EyYyVASP_aFCOGM0zjAMzX277VOdOFONKKSjFNehXX_LYELR.0PhNNK2ZC1d8vF7qHFMfonGQ6XZNygnhoRoLj7q_xtkI7zdirhKwQWJ4wLaeOJ0uBSfiqMK.7JPw5eWAMu92oFKG3oA9awALX2MxT0X3xJnwsK07Jies9g1BEtv1oR25eIO0qQyPPJlnF3HzDPIg4nloSLZFDICsYXa0ZTChCg.kZ83x2qmK1wPyORH6GCHMFKMrgoqVAn5f2e03MIyZbnvdJXDfPw6epoDIOgrMl2b8o2MzC.Dki9HKaP6yKbNd42_rkmJZbS64Q6H4IZnpltQXnD7VvhWLUuNLy.fzJcbHTtQzL.XIK.svJ.pSRjQRLcQVHlyvIES99h7ieybTydLwZBlKQsH1hQUiSdClNIhgLSZSEPbXOAFhbcWI2I2i815NDBpkCzhnOzNQNS_4wnSZniqata_nUKnanlubkZHg3JCCiCjPl1YFf6zharRjyJZJCpnzAH9TK1fES_5Zziz1e0isPkrjdV4tLvrDHAghni7Zd1n8EIY4YwSyGPADnNyWs4LO1A_xsn9KZWV79WoZb1LCvg00zFyvdJFr_jMm.SFQLdiuoclId8eqXNAUGiZPkWKsdvHh8KbuYi0g1b0jHI0UZOdQKN3Ddwi5JDnYpf8Dv1qvww2UP0C8cCbggtY77hWEsJqTMCP4d7.KR2t0Y0HFtjr21NCzbk34wwa24LaYWxHo2ciW5KQKtu7uGt1JJn9IoShySKStf906TCHn.NPeajthia._alevPl1RA6vYCnyvBEXHMnZ5PldFzSgISoIT4eF6I62zsvFEVUh_i6LpWuCidx4nbWp_p.9q55hu7lQD8qNxuXjuUoYCOMnSlQJwCEQ7Dd2s1MdWZIOeG3fjqF570_kTqxIdz0oxrwEdO0QBbQHtMQOw36lVACSmkSBtIdFvAEpM5Dn2aoWjcqD3bJmr6ODwglt23Nfl9n0dvGcv5p3oGN6DVZ9tgwig7a86T0ZLFbzn39W6wNzV_AhZnnOv_WxFYpeiR79LEePpu1oO2Kq05ixPMEdwdDwerVmb4ru0qwnZ8QSI8S2z3SguIqoUnHw.pIPGuOXwU279QwAQUCnmu_tIBRKF86YowzRW0YDQ_rxXt.npomlsjVyvNuoL1EP3aq9PyxtltTmO2E6x7_DtpEYWvq3j.ErFrwM7iRbQ6Nq6_bY4zCZtZv5DTkqPTVeEzIXAhqk6xzPwZrkIjGrnAS2Oyz5Nc6SnhyRnK2pFfULipIq.E58M4bgtv0TGp4gCDWWegCScPEPjIDeO_Y34_Bp_n7cRNQl53nJSPqYxj6377xi.TUVWfO2SBhCUHjnwr7rEL2uU9zOgIpcNGKh_J3qRCQ1JtPruxO7Iuw.r_JH4GJZ.Fs67vRdFoyCK2WhXOa9XsmDHIaYoSU3WsGfR3hi6zXtl4kx7vYhnjW_hzV8LYMv2Cb5_A7F1ad3JOjDcKJpbeeK9pOsP2zjQah0YjSrKO_6RAibNuWefro8A.4TXgtYw0NY7JYAv.QFCM8to09fhymcAirha1ACy3zaHLXpaLaOGEZ.dhywQqTj4akcxzBTfqogw1PcyPheX0qjlvn9tM.5PRHBVdrspBbqDk5pJZFOdhWevQXPMu7ptsQOZfitKrUaXhR3SQi6XWfOQwd8NoWkOcMPc6pH_7AjOYaYzO6JDfwpfhcW56aN9H7rnuft_4fCL3d9sAc0qYZHqe3Rt2Amc71XJ.nbH0WUrWD8zJ3827Nizpwi1vbHqIKUudEIGJpqq92.ktY9QLgppyA7M657fReQQPPnkRYtrHFI7qCsEwUQVti5Xv19z7RlEEfbEfyyw2tuHs4YYm11dGYU1YtkheFkrOgLaO_mOK7Gm61GpACGNLxNX8.Am5dXjja.z0N8wp38p56QIqhMWYX7mxrxH.tjQpof.yX4vHHNDpHK2FyoXBCs.PMzwUow6xs6dsPaGGpMP3dPiwc7Bg",mdrd: "Q3dP83qvlR0PHxW5UYo5u5LU9ikLVwyE8H4MoVUnSwk-1739785291-1.2.1.1-0XX5zKNCoC0LCRGx2whh2.3TIHamrjJ26uaYzP5NVYR_6kCtDa1tVI3_HdmfUCDHplBJbAdXENj9H1mvITRZbbhNtgkJF9aU4gWd8JKTRTvhK15SE86n0BeEPLKgOGScBnLVYu9QhZ_GIJKOH1MPjNv0JhLwmnxgiwXN9j1fWQ..CyPHsjRwmbFqnuVbL0rAWrPhY.sE1m54exdo1fTkZmZz6UhF9SgZvD1EmLzU6VF9k4Nqj3q2rCOF23lSDI8HqTmR6wls3A41frA9h6m4YJOUxZ2QrkmMCcuUgAGV8P6A8s._w0B7yDwpeE9FMigc7Y6kTKghlvPV7wC3aweA6vpLpGsM271vxjZWiXN6GEWDj2wNNsquXT70mzLKrYyiaR9Yx3wJcXeW3PrsN.jloXszhONYwoyCtGKSCS7bJhusEGO2BASoVvpMg3ZI8Ajo90zjMY9raFvJUONX0ICbjl47n03_ISCJ7qh6qql.ITHlHcZt7B6jgbpwl.fJ4vIYYh9Pg.KYdmrlFYj8hdBTROrODouNZrpHZ4hC5Poyw_N7d7rj7F_bp0nqkDw5QX6x0Vh_tojiL_f_0EF857qHhBuNDywgQZQcGq_PuUGO9j11kxGsAuJbM4mH5z9vn.DB6Vq7I6.QG2Kjq1MyZ6_pyuwJ0hOVvSyB.xn41DmUXXdNJw7_7GWmI7cQ5AtmBJOVhCh1cSY2pMsQRcf7ffIgcMs7fGpunE6xFMrm69TtJ66n2cLiVuXOmCpd5jraXvslgdyfE_YZzbXYHTgGVbo7tYjiukR.5McqjdiYPS67fW55YirVyzrL1LPD3EiB.gCw2yLl4rjM7U1puAa8S8_Qe0MCGu2qjygBFZHJ.vHqYJawnlsfa6cWV.NjvljYJRqdLmrbkGQpXk8J0aGmdcSkkzSLopDaYIgVnfsh.FRqGryWz2Lg58gBuEEmUqgdY7hFJ53kP_r.y3fPGJBCrs5WEJ6rs5Dcpdfp8swIS5hxAp5sD5kWJoz6uF_Fn1y65ayA2X704Jovx0rQAsOpI8lzNZJMhf4co5M1hTol8U1naNq42YHBuhX0K3CWkS6oAc_NS9VWh9CgDY3.aLU24LSXZvruTSyBBEjza_ez4ent3XytWGSXpqIpoiP_bzZ3CPqlAQdOqc9Yt4Fd3J0K_wnoF1pHzKwr8XYbsVR98OA.J0pSq.l7bJsXggtjRzQbfa3GZG8jvuPW6ouoIIZTeVdEr8R3K63pFOfiMZPQODz0C6vrcO3T5YueWIKCW4qkW_B.cYU5J3MPTRNXti_7hHuz7JJ2RMsTEIUmDLGPYhlq8y9z78qM6BMQbx7kOy.9X7mgBUNlr21_77mbfzKuNaereFd6vBRDp8eQUfcriOxGVmirHuh.u1RwNNjyIhWFu0ChtTyH0SynmFmIoPr1_hH4GxcfDtNn_EqL5kOP9gkAxfTpmoLMCFo7lC7VH7uhPK8bzlTdTWMMEXkrzLt8bEzZFFbXTI0Fu6IXgZT1E690GiEsDAojvRIrQLr7uFTJs7QqBPsc9sfAvUee.clBnfFF7bD4j33EEsQt.S6hcumaQlvBbrGkLl1My_FTuCS65rCj5ZbsiBcDC_66SZbNY706wFjWXBhGTSakOyFqQZjc5LQJDXcJEwHpz46m2mE7lPlEyzQwuQT_XPKvsYL7qqEUnafflfB9RxF7eYX0tdaaWl8au4oPRTL1bMcLnAG1QG_WDXlj66FDEs6t3wJs33h.xcoceHWgZw8pvsggVVG.BiWeJp61JAe5quzlFxmc0gGKaGylnmKcOZCTm0oxS7RIYAGeD_laDUAZS.RZ4QtGUSW7ecGZGpD_fOO5HJuMYoA7f_3LgY4sCkKOXgLk_XdiX__iX23XOFuXNE4ihnfx53WcfKuU1xKOWtLQ_o1pYS3hrvCRsNdFokWPNvhyjl84p7NS9D2GDVmqAp7ELHejdiU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134d275797efde6';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/cryptography-and-data-security-conference-in-april-2025-in-paris?__cf_chl_rt_tk=e_FtxyqrlGp3HM.kcXmbOFKW9vx_QcjXjjHAKT0ow4s-1739785291-1.0.1.1-sbo2pmMFi_XemjGZXoSXLJ7QvoVh.X6815cSLzjga3M" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>