CINXE.COM

Just a moment...

<!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: '9134101069b38819',cH: 'VqaCXX1djOX0hHYrK7YkWnGyA6MIC_t_9LBNLCBvaJI-1739777328-1.2.1.1-xQw3QkcYyLUa4uL3GNVqQOky5n80B0NcTc4I_DAWA87QOq_2SY501W0DP1JnIRGI',cUPMDTk: "\/cryptography-and-network-security-conference-in-december-2025-in-barcelona?__cf_chl_tk=OyGIPRJHRi7CSYFOwa0QijSndJ_QwBxyhnGKzb_fiYY-1739777328-1.0.1.1-8B4BSrbOlZWUscbPQhH1t9khVYSd2KW9eS0nyF8mOGY",cFPWv: 'b',cITimeS: '1739777328',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/cryptography-and-network-security-conference-in-december-2025-in-barcelona?__cf_chl_f_tk=OyGIPRJHRi7CSYFOwa0QijSndJ_QwBxyhnGKzb_fiYY-1739777328-1.0.1.1-8B4BSrbOlZWUscbPQhH1t9khVYSd2KW9eS0nyF8mOGY",md: "6CDP0wHBelL3uBe1UdSRHbcQqYUkkY5KGh9sZXp4qwI-1739777328-1.2.1.1-NDqtdlPffsxR1b4hhmfQNrrk2HxmuCbc7eanethywXd0BsshreL7IWnvSA.t5FDzecumBVwbYAExq7lFZlB1VLYXRLio67vvvV7_KatV4m3e_2XAlJs434C0W6ugQ8CJ_Jrh0lkZ54FVgG_fMxLIZqT0BvFuhrVdsUxKQj7LpZlKi_eBin1JlhC93N.N0_T_w1a3xegcblb6gD3TJq5HeWuSSg5s2sKnk.JK2dqJT.NGHzhB8wagc15g1u4G7WpPI4Q86w5ZTHCwBR3RcO.Dvbe1cr__60k3oI21qaB9SBiTijsKt2cYiFSs3oY9WVwpsnIERaMDqJb3x8iAixQFNUNbG0RYBli0hNV_DkY31XjcAp90zr5wtRVHQ83iHjnCSdWpaRlyfaqeKQCqJpTCHXcLnOaauXcLIlJVqPMTQYb7lwJcZI3rmLqnBm03JF4qv4zBkuEJKq7Q65RuCk_osjqNGWfFAhpm.m.1a.rM33Gg4OLM5CO0ZfzoEaS.rdvEjzOKHMTYEFh9qlCLj84C3pONTkTihIdg0VQZv_1.2QT4qYZSmjA17R8r.Ih.sjpEBjT1_aNnwEuqXI1XipPuVlz9LeIx_2KLnr3d7RMzfCd7FpOc5Ek0iJuLBdu1EMXJWOfvxNb9JBmn6AHSRO.JxISQxj0hZYbNODr584gRd2euHEVZptetIPDNUEfZMvWBTpGxI7Nc7289j1eLJFyxraX7MR9jT_il8iq6L9fbOO3thjqaTZ6Dr9zAMfl3gbCsNtsZKRRuzTK0b6sWVGBe4ycy9wjNW00BTQMQqbLyXXuZn288ZUI.KqjhQve9J8wQ5ps1E8Vq5dk4.sieUGrpCHUsvtKgXroK7eGaaT.CxPYGz2f0_Z1JA09_H3OW5SHbOMNH7CeZw70SQwgUK4HF0N8KLDZWOr7ni4kGXGCkd2_b7YiCfnOVtz2aac07X1lLlfY2Nqu_W4epH_qqjCK7vXjoHcpoyUkS_tFGXlrVKLA7YBifXqzY91UarwLSFj7nnH0Vk88urVBbgor0uSKctCTRNmhJQhsGfuIICtDHZGkAisD0pxt6j2z8wVWMZgmBV0cY4A7LE9JY_69WPdpqz54oKiTOtBU40vIVVEEUb_S5jNBcTbAA3lwhoSPWgDvZCFPPrGlH3nmmyu0cRrHrCVbOcjtIsS3bTiENCRR0izUnFjcYPFpy75APkH9FDra7z_S4ipX24Xp0hhoI96_UWMWHsQp.stRiyN7Cpg4zjmgdyDcC6qI.ob2dpYUb8xm6msy21uCo3aHDs.v3DCntGlEqbB5yCYRe8AA7Vfw2OyGdckAbh.sdH..miAJYyjSe.leAXqkDOFQuywPuEYEAcgF.Bi1xuPGLXgNA1FG8w4kxZlSLyXIYNPv_blVuCee7KSmRVjTaw5XVYcDrPuDYWLR1d2bmT80mbTkf0Lk7rAg2FJg.Ueq9LTGMdFgqcHun9hW5b42IZx2EzFDpjk6Zd2pP1SU0ZknVL8aLkIOtEw0fA96A3RduLcRzqcdkbAZUMDo8bXfCqXYhhzUE_rjX._eHE.E9IhZHlk_HFXiL_5E4D_KLButrXTptOPueaUCLe6DpWvq4XQuRClAOI4rM9K8YPEft.P24YwMtVTI8uU4XOKXESi8MTbOesLA85NPODCVGVKYR5Bv7.UpLSavVSpYc58JGYDURuejOJduJx3i_jWkXAhsYVastObyV5kWPbQFxEC0WzrrEFthViF0oA1SBpEsE50FQNWfpGAHX2G7JSPIePzczpEuqGfThyyiVt.IRMq_FCkmiEIYU6Na.xk5MSlqNFfLQ6Yw2kw0PFwWz5jJvF1Kr05JLhMwZTXiQ.d4QrlE9Tuv.yHihEeFcFEJk8O14go7e9p8CRohpkHDjj1dRVNl4.9xoL9CSwnX6V3Pq_pfpsDXkU8WHUk2GqZ7IbeqEwMPl1oAdarau.ZfEp6p29X.XsalYrNYQTeqzpktv6cMJaltZYmOe_7Faa_dJKzLcHKYR2UeM51UVZ_mrLnq8y6dYrXXbQS7MSv4U",mdrd: "Hk37t_DZldaTFfPL0lXsATWiawGAEG4M04kjfNBPLy0-1739777328-1.2.1.1-K_yiCdbZ3rLJyHJTP_EsTXcHQhrXjjeCZHWveONrZpN685IbqIDAFBZT0WA.TBCOh01Jfnd5z3Kg_Pppg6GbL4L49WdYWDnnumDzGQxvFNZgTCR2Qnmz.YRx3fm0dX07xMnNBv8J7XCNqQXnMaatojRZQZtfFOgdR8lGMLSGEyUWX4oexCpO5vRNGDBRT9Wy.Lj9DWtlMkMVk84_C3uD8jomDFJlOSzzpB8c_k0RAaId6ZalScy_IMcvUiYMreUk8D3DO9T80Sackjp2yY1HKfhsesmHfhzbZebIoWQLdVe8QSDE_avrvjUZnTYuZQ4umXAbO46dad2DFxhGO2caYjNLb4fWPm2SGX2jHOgp9L1mgNsntOS5wPSQpYWW_bEf4n.sUP1E_XkWY_0.UwtiUuRwDyOlu3Kp5RiOHXaVEpZ_MDuGAJwMy8RGYUr8YaBezpG9gacxdXrInfxQbklwYAHSeROrxqApY39TSHRLINULw4PS2dhYhuxDGx3KAS0gJD40Fs3L2Msa8f6buV3eRUt.jfcLa3nH4PxZ.BQLXo9t8ODI145VicdBWU71HuDxnyWDXFYVkoypgyVzfLnqy7z6A9EpM4z7R9lrqW7LxhAY5j_bViBJQaznaIJbENJssN3EseW8XaAcr9b2f6Sbzu2CqbK84WxA4.Ekj6kLcN61KjJ0dj6JZIr7IlzPH5Kl1qeX9fyYVG.uEY8wI7ooU6DR6zazSYCFTkFmMDAFvIsHtDlIrWZIOCfaLVgIx8eGicSWS8CaJ5dHEmcdWOkPu6otbXAYpSW8HW_BPVQduhBZ7V.Dv4lieuWZcisSklhuHHSUbxVgSpj9XMvxChrQrUhKyrNp6SkNxLqQeEtI2Jdy.v_hJLXEn.Scce3Md7e07gYMY2KqMoCTIw_jsxP.EdXg4kQlc8rbPiLHiLh3578qAyI.MPntrRsUPiJNM2eAH8_7ru7sQYlzjaPY2su2Xhv886CpPC7LTsh2sh_WrGSmJQDMn9Lj19iU8XW1ru23OUnh31.7QTLjeoHVxX.plYWIQ.E.TGwYAH7DV7N.Jd4lHGPU4wEwfjaGS2wIGqf9BVtr1hEHi9KeXBROzf9evSfSKT6ZtL2cDPOl6k9z23qFFIdkg.ml6FDu4fFbvp40YonNd.ykjHGeQZSgK6awOT.C5dChA1gIYYIf4RQxjpLFq_dO2HmXf6lRA7JI1drKmMBfoJukBbu5rc07ubhvAgRDMwQMKSoU380tOsS0Vfwl5BqQHMRpcim1onRKL3QxoLJEYk4grlyj233rsuXjw4a9pBG2HjGhzZOnM.JlNJ5IQxU1YuJXWQfP3OD0E68Pt.QLSGSE7brZI_0a4iDXQonRyCAm6G49HSJea4wg4hnDcuwDRRmObLINBK9dnuVO4jaev270Y9JV_oP1vbgofPsRW28flXwwbgmzkmpj0hnYADHMzRpVN0M0x2AkJOmRDr4foI_z_u37VhPrITq4Bmu6G29506AGQozgnhhltjYDWj1QEd_kdgzMtalU5SpQmjtG4OVepENU0TVOtXQSYvarZZmKA_jfiALwT3MQNxVsDKoE_3NmebYQ9EKX7wkqgqDQ0TPFu2HcJxkdZyrRN8jsZ_zZkBqhF.qNTXLiSeZ6fxHRyC0UXpcmPNOCdGq_CTFz2Z770gWJQOUI8.3U2InZCbvNH6GcLaebhWMiry9VPVg3C4emDVELJoEgAyPc9Gkj9sBwRuV9XSvZzkOIxozJ8R31LdqUqtkxJWIpg4humsnma3._t2VWuYhxowBq75LRiXFm6uUwIDFWPLOJaEo4Gv86Mt85pv5ClvJ.JthUMepdaNYGGm0YhfGN_mvLZsS12rbgqvPUchCYDo3At6w6x.1lxKqFSHfyTQy8q3qSFq0BuJbHEBUyh._teeDoyyaNTr2hWIxFmw8XfltxleQABSlEyaB8y390TCvic7c"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134101069b38819';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-network-security-conference-in-december-2025-in-barcelona?__cf_chl_rt_tk=OyGIPRJHRi7CSYFOwa0QijSndJ_QwBxyhnGKzb_fiYY-1739777328-1.0.1.1-8B4BSrbOlZWUscbPQhH1t9khVYSd2KW9eS0nyF8mOGY" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>