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This is false. 2048 bit is expected to last only 6 more years by cautious projections, and only until 2030 by conservative projections:

    Method          Date      Symmetric Asymmetric  Discrete Key    Logarithm Group Elliptic Curve  Hash
    Lenstra/Verheul 2023       88       2054 1632   155             2054            166             175
    Lenstra Updated 2030       88       1698 2063   176             1698            176             176
    ECRYPT II       2016-2020  96       1776        192             1776            192             192
    NIST            2011-2030 112       2048        224             2048            224             224
    ANSSI           2010-2020 100       2048        200             2048            200             200
    RFC3766         -         103       2056        206             2056            192             -
    BSI (sig. only) > 2020    -         1976        256             2048            250             256
Source: http://www.keylength.com/

I agree that 8192 is overkill. GNUtls 3.0.28: certtool -p --sec-param=high comes out to 3248 bits.




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