Document (#18117)

Title
Internet und Sicherheit
Source
Die Welt im Internet
Imprint
Heidelberg : Spektrum der Wissenschaft
Year
1998
Pages
S.52-66
Series
Spektrum Dossier; 1/98
Abstract
Mathematische Techniken ermöglichen, Daten zuverlässig und vertraulich über unsichere Kanäle zu schicken. Zugleich gewinnen die Beteiligten Gewißheit über die Identität des Partners oder Vertrauen zu einem Unbekannten. Bislang hat zum Beispiel das System Athena, welches die Rechner des MIT gegen unbefugten Zugriff absichert, jeder Attacke standgehalten. Derartige Sicherheit verführt nun allerdings auch Kriminelle dazu, ihre Untaten ins Internet zu verlegen. KAnn der Staat unkontrollierte Meinungsfreiheit im Netz der Netze zulassen? Wie lassen sich illegale Inhalte aus dem Internet herausfiltern?
Content
Mit den Beiträgen: SCHILLER, J.I.: Sicherheit im Daten-Nahverkehr (S.52-57); STEFIK, M.: Systeme zum Schutz des Urheberrechts (S.57-59); GRIMM, R. u. U. PORDESCH: Wie sicher ist die digtale Signatur? (S.60-62); ROSSNAGEL, A.: Sozialraum Internet (S.63-66)
Theme
Internet

Similar documents (content)

  1. Beth, T.: Sichere offene Datennetze (1995) 1.16
    1.1594794 = sum of:
      1.1594794 = product of:
        2.4155822 = sum of:
          0.12644847 = weight(abstract_txt:zugleich in 1246) [ClassicSimilarity], result of:
            0.12644847 = score(doc=1246,freq=1.0), product of:
              0.12142956 = queryWeight, product of:
                6.664523 = idf(docFreq=150, maxDocs=43556)
                0.018220292 = queryNorm
              1.0413318 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.664523 = idf(docFreq=150, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.136559 = weight(abstract_txt:techniken in 1246) [ClassicSimilarity], result of:
            0.136559 = score(doc=1246,freq=1.0), product of:
              0.12781906 = queryWeight, product of:
                1.0259722 = boost
                6.8376155 = idf(docFreq=126, maxDocs=43556)
                0.018220292 = queryNorm
              1.0683774 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8376155 = idf(docFreq=126, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.14592262 = weight(abstract_txt:beteiligten in 1246) [ClassicSimilarity], result of:
            0.14592262 = score(doc=1246,freq=1.0), product of:
              0.13359714 = queryWeight, product of:
                1.0489055 = boost
                6.9904547 = idf(docFreq=108, maxDocs=43556)
                0.018220292 = queryNorm
              1.0922586 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9904547 = idf(docFreq=108, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.15402116 = weight(abstract_txt:gewinnen in 1246) [ClassicSimilarity], result of:
            0.15402116 = score(doc=1246,freq=1.0), product of:
              0.1384955 = queryWeight, product of:
                1.0679616 = boost
                7.1174545 = idf(docFreq=95, maxDocs=43556)
                0.018220292 = queryNorm
              1.1121023 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1174545 = idf(docFreq=95, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.16531634 = weight(abstract_txt:partners in 1246) [ClassicSimilarity], result of:
            0.16531634 = score(doc=1246,freq=1.0), product of:
              0.1451864 = queryWeight, product of:
                1.0934546 = boost
                7.2873535 = idf(docFreq=80, maxDocs=43556)
                0.018220292 = queryNorm
              1.138649 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2873535 = idf(docFreq=80, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.21042328 = weight(abstract_txt:identität in 1246) [ClassicSimilarity], result of:
            0.21042328 = score(doc=1246,freq=1.0), product of:
              0.17052102 = queryWeight, product of:
                1.185023 = boost
                7.897613 = idf(docFreq=43, maxDocs=43556)
                0.018220292 = queryNorm
              1.234002 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.897613 = idf(docFreq=43, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.07561467 = weight(abstract_txt:über in 1246) [ClassicSimilarity], result of:
            0.07561467 = score(doc=1246,freq=2.0), product of:
              0.08618919 = queryWeight, product of:
                1.1914592 = boost
                3.9702537 = idf(docFreq=2233, maxDocs=43556)
                0.018220292 = queryNorm
              0.8773104 = fieldWeight in 1246, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9702537 = idf(docFreq=2233, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.21611851 = weight(abstract_txt:mathematische in 1246) [ClassicSimilarity], result of:
            0.21611851 = score(doc=1246,freq=1.0), product of:
              0.17358415 = queryWeight, product of:
                1.195619 = boost
                7.9682307 = idf(docFreq=40, maxDocs=43556)
                0.018220292 = queryNorm
              1.245036 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9682307 = idf(docFreq=40, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.2455363 = weight(abstract_txt:vertrauen in 1246) [ClassicSimilarity], result of:
            0.2455363 = score(doc=1246,freq=1.0), product of:
              0.18899886 = queryWeight, product of:
                1.2475771 = boost
                8.314507 = idf(docFreq=28, maxDocs=43556)
                0.018220292 = queryNorm
              1.2991416 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.314507 = idf(docFreq=28, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.2455363 = weight(abstract_txt:zuverlässig in 1246) [ClassicSimilarity], result of:
            0.2455363 = score(doc=1246,freq=1.0), product of:
              0.18899886 = queryWeight, product of:
                1.2475771 = boost
                8.314507 = idf(docFreq=28, maxDocs=43556)
                0.018220292 = queryNorm
              1.2991416 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.314507 = idf(docFreq=28, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.31586918 = weight(abstract_txt:unbekannten in 1246) [ClassicSimilarity], result of:
            0.31586918 = score(doc=1246,freq=1.0), product of:
              0.2235563 = queryWeight, product of:
                1.3568481 = boost
                9.042746 = idf(docFreq=13, maxDocs=43556)
                0.018220292 = queryNorm
              1.412929 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.042746 = idf(docFreq=13, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
          0.3782165 = weight(abstract_txt:kanäle in 1246) [ClassicSimilarity], result of:
            0.3782165 = score(doc=1246,freq=1.0), product of:
              0.25208232 = queryWeight, product of:
                1.4408175 = boost
                9.602362 = idf(docFreq=7, maxDocs=43556)
                0.018220292 = queryNorm
              1.5003691 = fieldWeight in 1246, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.602362 = idf(docFreq=7, maxDocs=43556)
                0.15625 = fieldNorm(doc=1246)
        0.48 = coord(12/25)
    
  2. Kanther sieht Gefahren für innere Sicherheit (1996) 0.08
    0.08041823 = sum of:
      0.08041823 = product of:
        0.67015195 = sum of:
          0.2759508 = weight(abstract_txt:kriminelle in 3321) [ClassicSimilarity], result of:
            0.2759508 = score(doc=3321,freq=1.0), product of:
              0.259142 = queryWeight, product of:
                1.4608536 = boost
                9.735892 = idf(docFreq=6, maxDocs=43556)
                0.018220292 = queryNorm
              1.0648632 = fieldWeight in 3321, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.735892 = idf(docFreq=6, maxDocs=43556)
                0.109375 = fieldNorm(doc=3321)
          0.04607955 = weight(abstract_txt:internet in 3321) [ClassicSimilarity], result of:
            0.04607955 = score(doc=3321,freq=1.0), product of:
              0.113334626 = queryWeight, product of:
                1.6733228 = boost
                3.7172995 = idf(docFreq=2876, maxDocs=43556)
                0.018220292 = queryNorm
              0.4065796 = fieldWeight in 3321, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7172995 = idf(docFreq=2876, maxDocs=43556)
                0.109375 = fieldNorm(doc=3321)
          0.34812164 = weight(abstract_txt:sicherheit in 3321) [ClassicSimilarity], result of:
            0.34812164 = score(doc=3321,freq=1.0), product of:
              0.3811952 = queryWeight, product of:
                2.505685 = boost
                8.349598 = idf(docFreq=27, maxDocs=43556)
                0.018220292 = queryNorm
              0.9132373 = fieldWeight in 3321, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.349598 = idf(docFreq=27, maxDocs=43556)
                0.109375 = fieldNorm(doc=3321)
        0.12 = coord(3/25)
    
  3. Bleich, H.; Stieler, W.; Heilmann, T.; Müller-Maguhn, A.: 'Rechtsradikale Propaganda ist nützlich' : Ein Streitgespräch zwischen Thomas Heilmann und Andy Müller-Maguhn (2000) 0.07
    0.070174865 = sum of:
      0.070174865 = product of:
        0.5847906 = sum of:
          0.20153737 = weight(abstract_txt:staat in 339) [ClassicSimilarity], result of:
            0.20153737 = score(doc=339,freq=1.0), product of:
              0.19226156 = queryWeight, product of:
                1.2582995 = boost
                8.385966 = idf(docFreq=26, maxDocs=43556)
                0.018220292 = queryNorm
              1.0482458 = fieldWeight in 339, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.385966 = idf(docFreq=26, maxDocs=43556)
                0.125 = fieldNorm(doc=339)
          0.33059087 = weight(abstract_txt:meinungsfreiheit in 339) [ClassicSimilarity], result of:
            0.33059087 = score(doc=339,freq=1.0), product of:
              0.26741308 = queryWeight, product of:
                1.4839836 = boost
                9.890043 = idf(docFreq=5, maxDocs=43556)
                0.018220292 = queryNorm
              1.2362554 = fieldWeight in 339, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.890043 = idf(docFreq=5, maxDocs=43556)
                0.125 = fieldNorm(doc=339)
          0.052662343 = weight(abstract_txt:internet in 339) [ClassicSimilarity], result of:
            0.052662343 = score(doc=339,freq=1.0), product of:
              0.113334626 = queryWeight, product of:
                1.6733228 = boost
                3.7172995 = idf(docFreq=2876, maxDocs=43556)
                0.018220292 = queryNorm
              0.46466243 = fieldWeight in 339, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7172995 = idf(docFreq=2876, maxDocs=43556)
                0.125 = fieldNorm(doc=339)
        0.12 = coord(3/25)
    
  4. Hosbach, W.: Suche: Nadel : Desktop-Suchmaschinen (2006) 0.06
    0.06415939 = sum of:
      0.06415939 = product of:
        0.8019925 = sum of:
          0.29660177 = weight(abstract_txt:rechner in 728) [ClassicSimilarity], result of:
            0.29660177 = score(doc=728,freq=1.0), product of:
              0.15670562 = queryWeight, product of:
                1.1360046 = boost
                7.570929 = idf(docFreq=60, maxDocs=43556)
                0.018220292 = queryNorm
              1.8927323 = fieldWeight in 728, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.570929 = idf(docFreq=60, maxDocs=43556)
                0.25 = fieldNorm(doc=728)
          0.5053907 = weight(abstract_txt:zulassen in 728) [ClassicSimilarity], result of:
            0.5053907 = score(doc=728,freq=1.0), product of:
              0.2235563 = queryWeight, product of:
                1.3568481 = boost
                9.042746 = idf(docFreq=13, maxDocs=43556)
                0.018220292 = queryNorm
              2.2606864 = fieldWeight in 728, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.042746 = idf(docFreq=13, maxDocs=43556)
                0.25 = fieldNorm(doc=728)
        0.08 = coord(2/25)
    
  5. Weichert, T.: Haben wir wirklich nichts zu verbergen? : Wie wichtig ist heute der Datenschutz ? (2006) 0.06
    0.06141387 = sum of:
      0.06141387 = product of:
        0.3838367 = sum of:
          0.026465135 = weight(abstract_txt:über in 75) [ClassicSimilarity], result of:
            0.026465135 = score(doc=75,freq=2.0), product of:
              0.08618919 = queryWeight, product of:
                1.1914592 = boost
                3.9702537 = idf(docFreq=2233, maxDocs=43556)
                0.018220292 = queryNorm
              0.30705863 = fieldWeight in 75, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9702537 = idf(docFreq=2233, maxDocs=43556)
                0.0546875 = fieldNorm(doc=75)
          0.0881726 = weight(abstract_txt:staat in 75) [ClassicSimilarity], result of:
            0.0881726 = score(doc=75,freq=1.0), product of:
              0.19226156 = queryWeight, product of:
                1.2582995 = boost
                8.385966 = idf(docFreq=26, maxDocs=43556)
                0.018220292 = queryNorm
              0.45860752 = fieldWeight in 75, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.385966 = idf(docFreq=26, maxDocs=43556)
                0.0546875 = fieldNorm(doc=75)
          0.023039775 = weight(abstract_txt:internet in 75) [ClassicSimilarity], result of:
            0.023039775 = score(doc=75,freq=1.0), product of:
              0.113334626 = queryWeight, product of:
                1.6733228 = boost
                3.7172995 = idf(docFreq=2876, maxDocs=43556)
                0.018220292 = queryNorm
              0.2032898 = fieldWeight in 75, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7172995 = idf(docFreq=2876, maxDocs=43556)
                0.0546875 = fieldNorm(doc=75)
          0.24615917 = weight(abstract_txt:sicherheit in 75) [ClassicSimilarity], result of:
            0.24615917 = score(doc=75,freq=2.0), product of:
              0.3811952 = queryWeight, product of:
                2.505685 = boost
                8.349598 = idf(docFreq=27, maxDocs=43556)
                0.018220292 = queryNorm
              0.64575624 = fieldWeight in 75, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.349598 = idf(docFreq=27, maxDocs=43556)
                0.0546875 = fieldNorm(doc=75)
        0.16 = coord(4/25)