Floragasse 7 – 5th floor, 1040 Vienna

Nicholas Stifter

Nicholas Stifter

is researcher and security analyst at SBA Research.

  • nstifter@sba-research.org
  • +43 (1) 505 36 88
  • 10C6 4FD1 19B1 B399 4A2B 6D7B 5EB9 556A 4339 97A9
    -----BEGIN PGP PUBLIC KEY BLOCK-----
    
    xsFNBFit5JkBEADt7nA0IW5psK5aqVn2N45NFUkIv0xYJyBhvB9UXS1h3i9L74hY
    +FIMnllEd09NYxEVM2m/JSsteeKg7mgQYYhkJGAHMDL0LL1HezKTagRRDsXaLmyf
    2Y8NCBFU0+HEeFBqRPjAvl2ifEgTdCcmKhr+aCHyyHlQDjkq3aigfVf3XDOuKHbg
    RajpwKyiQAtdCUck22n+DxVQZtQ2177rbi3J5wD1VqO+P3vWI9TXem3UEz4oRdPf
    KdlCvMw2IyGf7xPp92Y9Yv66yjOlvrJmBWleCovJbAoh4WDSrxCmoHu+W0FT9guO
    dtS8w6+NcKvEUxH6mzvUjk91p0ybS7JdTqJjB/YncSbYFzVUYgu7z0JwTAMb3B2T
    zPZUJMEYJJts0mLJ0O3vjBiJ/nwz5lzFlG4v8wqN9LmFGiBml3nxn7gqHfMq6k/G
    YzIjOYW59x5f+YP9ZPJH+9H4hx53ePSpQzfGWW/B0WDOPfgFgUC6HUwBLCZOSVOh
    sXqE1UHE5MONeuRWwyHVgg7gQ66S6uHg/eZ8WC9HwPEy2fNSO3s+NZT6ex0kJ2fR
    eY4o//Dy3P1StjwNxhpqraJkCyYxLXkzel9afOmmDBKEpGjdyHASWx6nxLOI6BiZ
    wykSEuXHj57HBJY4eYW45m4nIOvHSi2jjM8zbCMxmcKm+J+LvSGRV0+0zQARAQAB
    zUFOaWNob2xhcyBBbGV4YW5kZXIgU3RpZnRlciA8bmljaG9sYXMuc3RpZnRlckBh
    bHVtbmkudHV3aWVuLmFjLmF0PsLBmAQTAQgAQgIbAwIeAQIXgAYLCQgHCgMFFQoJ
    CAsFFgIDAQACGQEWIQQQxk/RGbGzmUorbXteuVVqQzmXqQUCXk+1aAUJCWQ3zwAK
    CRBeuVVqQzmXqTeXD/9m6nvkkVYdOV8byHMQtODDc8IYy5W5rZP/Wc8IMiTZaBt0
    rCptXel940XwjUdvOom6PPhx9BajMJnfq1tTb579DWCkLbM8dofN733wTAHuHhtM
    Nef/jUcP3Hpzvtbrqr/NWtexxc0pVCcV8AeS1+7FE0UGjEWK57IxKZrCcQIPlzZS
    HdqeW9EQTQQz3ApylXPJ6A4wGwojsKvkoVsf1/y89BqtZzE3T2W22qNGKUqA1d4y
    VyHF3/PDIRUnC2VVWngfPNmQumpPNroHrJrLsppJhP9IoYwldVU2C+Cd6MSkFaXf
    CQBymORQajP9Cn9am2L6irclRovPWzoYZq+dXa4TMv7u463xh8J3UQUzm/aO8j2Q
    lPjtk8F4E25nxcECxlpXvImg2nccFhifhraED0f2Se23Qs0DgEFgNzSPnm5qcknw
    1VNRJR8BV2H4LnUNimgI9pty3IpwXXvozDbLIoOxGPS7c7uuwkplTTdG+X6g2+WL
    KzfM+mpnA53NFvBlv29qn0QvcOEEgH1FrCSVy6U1zzGZQ5diMeJuxMyal+jlSApP
    ES5oy/dfIEx0eThcg7qFiqNk0xlxGKGMIKEFEbde7O6twRahXQ1QidVTvhyadBLP
    TAlooi5NP7IaehoyQoMKIaZ/VKYI2liomia/dhW0By0dTtZYrMpQrU024iKr7sLB
    gQQTAQIAKwIbAwIeAQIXgAYLCQgHCgMFFQoJCAsFFgIDAQAFCQWjnoYFAlit67QC
    GQEACgkQXrlVakM5l6mstQ/+Iv3gJF6yne+AEcTPYB04wtMHDrQGQY61G8PWYGh/
    ZIvaD1I/mLj9oU171cXwOoflX9fy8KIrImIRx0GXl6zi3CvVSspXoKfw0tZeB/Sf
    q52OPf0huPhJOMODfI04gMchywVjsv0KuBxjWfKSXHgrYlSxv6uQgFoM8lhDqRPM
    DC+boHsxzOWtIjYZMXLD6B7KDICeTtTkx8+fGXCA4VqPv9dZTfjdZbNyBatO3aI4
    vpESHlNAb6SIdnKxbxMDD43dp+F5ERG3gnnTa8Cnkm0DfgkliK/X2yAIFO6Az/mk
    IDUS9PPkpUZXJVUZyWf7HyW7iOaKEAgwsNCn30yNf4MPCilJ2qafPOJ2ZL7f4FRv
    89kbfgTG4aUcYkQe8/duKvKKSbZZdhd8Y8rBLoHipDerSR+y2f8QCkjjyvTH4Ywn
    URV3/zXI7YdHukQzO6lFVG0BOJKRjqPMrC4UHxQ+C/yZyCG2cxPoP6o5tfCun42e
    OzMVSrlcRzXTkAa64Epmm57YgCTLDUb+nrmt/NvrUBD2EHWs78I8W0/1SpieTh9Y
    15pcilJaj1dzA+5AZMRGUg1Kj0u/+OXs9wk1yJad4lyB+ILahhIpTZP5a+Kh93w4
    GFTlCCD5w0NaFhgUz6gk0tAyoK85hLnPeRqrdpTFf3XPb65ocnykydjEHDcDfh45
    qsXCwX4EEwECACgCGwMCHgECF4AGCwkIBwoDBRUKCQgLBRYCAwEABQJYreilBQkF
    o56GAAoJEF65VWpDOZepVvoQAKtkNmtMFvLS+nWOPV8jKbdw42+DrYNxpx/X/7X6
    3sr48BGExM3Mw7dKXlUTYwiS+J820Z23LpfHswpeakt/wedsIIYipZ8MO+uXjQ8P
    AT3LtvFmo33JdfaMZCxne1MDEYINMhdfqQU2cOb03XVPYuWJf31MaaPzfTQ+bQC0
    z0QJoDhxpZszu4rZvnNtBK03tOYruDrH+jfpM+hoMM/nj937Fvvf8K4z2L9zdpUn
    uaud5UjKOoHI27XJv4YBF81IsoS52rx7+V2x0jSaqRtcYSKIYVHQyZ8xxT0a6msu
    1wdJ0oTEDIzu94axX/NjjDYr/3MhuUIm8YvHAz1v0KtaxMBkK4OUU939ZswRZUlf
    RtjA3DqeL3Xb52cfqCmGlZuKvo7I1zles4NUINRmVkW9N6QRZe3P1JOtVdAUMFqW
    ePSa5LXg22p7MExxgZREipxicwE9mgk8OPHcYmRExjX0nCUNE1053cX2dsnUs3ud
    Bs7DAlN/UWZvqJHSecH+Cl2+WxWHJpIOVuRUDqe/K2D9xntpF/NtWULO+TswvH+6
    sVBzs4N4AEFGFzfaA0DU13jo4J4qIWgem2Certplp6Cf6MRo7MHQJab3m4fSUxsH
    Q+7FR8RfPJ5QtpBdVxSGiAp5ok2TkhKW6T3WRiU0jkttNambgOeMMUWVJ8t6lju6
    2uhkzVJOaWNob2xhcyBBbGV4YW5kZXIgU3RpZnRlciAoaHR0cHM6Ly9zYmEtcmVz
    ZWFyY2gub3JnLykgPG5zdGlmdGVyQHNiYS1yZXNlYXJjaC5vcmc+wsGVBBMBCAA/
    AhsDBgsJCAcKAwUVCgkICwUWAgMBAAIeAQIXgBYhBBDGT9EZsbOZSitte165VWpD
    OZepBQJeT7VtBQkJZDfPAAoJEF65VWpDOZep6U8QALCRkY8mjhG+SbJLyLXFkYW9
    KXfYBo+yvfFMH/aul32ftK850VT5C7yyL96YfoZsMvkRK9psMbXv3JvKdo1ulyv5
    z4Z6Ry8ypgYt+kY9EvEXNY2y40lcK7deGfCaTg7w2lmHwOfMYX7uvOgYy7QkGI45
    60061vzrHEIT2JFwMO5h4oOgO443NaJxdBEX45ihvaeNMkOSqmsR9fYh2X76ErBY
    y3sZzZelxZM0RCWLD6X8ZXFnAM1gRXsWqcKk7feCcJcdFCrXSIDl8E0l7rccdGSK
    ddbEp08gGLSFbH4XpVzJuhaa2uLbNH7NMOT9zoWbcuUDvBW27kBB2AoX1ELIKzTi
    /CNhyTP60B1R+Y4aqxaFoK1+v5MmFVJm29atWFhKxdB+nQlObEh3LKdbqKW5hMUi
    RLKHoYFDygz2k8mIJpAkPdX8SfIuAz8DegHVv7CI9SDTECKkyk+F0uxDaM+NacmP
    MDCDiGslZ3/Ja3HTjuSkTLrKQfLprxCaQOXrCB3c2qEQNEunvbJcmzbnouYaBaa/
    0NPCRMqYp3dz6mfr1eiXE4Qoau4rlrfhNh5P+gIeF78IfVrUGIVE1CDZTO47AsZB
    yytXJHxfKW7b/O0kB6ftBdL392LKwgtnXPJa+eqoyQXLb1Tdt5ym2DDOXBc3/j1J
    nNPtZmefyo+bueSOouMMwsF+BBMBAgAoBQJYrekJAhsDBQkFo56GBgsJCAcKAwUV
    CgkICwUWAgMBAAIeAQIXgAAKCRBeuVVqQzmXqVfAD/9agV6T1JHGSWQ8xywDvaz4
    BSvFxk2EeIGoIA3fRfrekuqnGPfIVrYKRM10H5W6+9hsg2nVHkuEnYYsdZ/pfAVi
    P/qOabR+LrhUtyEP3Eyx+ckNZcUROTJKF6UEdozp+slbrWPXF3H8o0LZMpBf/kp6
    wiivA/6OUHaJBdf9FYHekRnkAzdpcqtCWQiDfkrBzDhNMIirPtRkAAIBrmPnEZ/z
    Zk4R+aJ8fcxkfJKS1ksHcuKrumOGFM4CJLSvdL93JvbVXQEe08XJOcctqYIcdWaV
    bhLtusIHBgMPzhYF+Ty+fkkkGAkz/Po+VTHNcH28M5nUqAA95nhfa7zPc5sP1b6s
    mRi968CEaEsgLiGtZwUUXmvF06dam0yT8VQdDmdEdl7xxKWy2arr91PbewRva5o7
    Ab3Mb011ek2lxwTyekG8jjmdFrlcCQUA80lUvX7AhnaXm7a5CROO+Wujv5VFGN0m
    9QV5oYmpuRJwXLEEzy9QazIK/pR+71N3qvnzkJi//wOnq78RsLtYFVtsoFDQ3DyF
    BgtErBLE4XC+E0UOmgJy3f/DFXMD8yVk6lJP0qSWly6raehuzg4CbRDreeZ9Lrfm
    w1bFNxdP2Nr7xIN0O4IctGFLeYRf5smq6SEgOTXUrqVgIsPtbFaC575UtJWv7eIW
    TsXCfOuKZ6Tn6Amy9R/ipM7BTQRYremkARAAszEHzE3NcgtpyG8pfu25QMRh5+wr
    qPTql9jHUi885E+wLl79Sqb7xeMQWYwBsXaIzTdRYPFr/F28RKH2BBVk1CVpxyks
    5SiFQp/zxfd818u+HuUbQ4rLJmON1Xe97hwi2BoOVx/68gJLOC0yKGtHzJCt8RGE
    gR7V4XuHdyHthhH+bXmlGiQtZq6HExE4iil07Rt87CHpdcnDja4id6PC2vVS1RQy
    mpx1zcP3Wb0zqE78fEiq+gsbmelDxYulLxFEOtjXH2JsAZk3FNroL0lEqZJDRqPI
    3PaNCVpwm6CrUeRePyReTKUlF0z1RSB5rZX3VajOrgvXV53UDmUpJrWCDBzoXzDB
    IUqaibGYr2S6xd18wCbsDkKmMHXMT46ofzKgzXtISBoGfQteTrgZcNVZX2ZIsn3q
    dVcp3b+8d24VbQY830LsnFUlraunp5+fgTKgevqSOnGrAfNNDfgWo+i26KR0cHIF
    5MQXK2gAkLDwWW1g/+W5MN+ZIwek6RUYxTsSMAHyV9MDZUSELm5FCaDPaTrex3bZ
    jEVOshWRTJh3ygnSEGvF7XxlKKEnJ3Q/SU+ci9yAWa4BYCT1yzqdb1xO8CP8DwpM
    PbndEtYPR8q3UuQ2/GUVWsatnTXB4DhE6FaaKq3PsD2VMfI8IZP/Gcprm6tu//9b
    O1uUVEDkIluUx9sAEQEAAcLDmwQYAQgAJgIbAhYhBBDGT9EZsbOZSitte165VWpD
    OZepBQJeT7WCBQkJZDLeAinBXSAEGQECAAYFAlit6aQACgkQ4UOt7omi4uv9AxAA
    j7kWyM1xhkphS8RySDp1ZxQ8CJTbci4R3FBgm7PQbotn52Bd8ChPc0/mukpZYRCo
    greMvh4f3lv3xrxKGoH8VTOY8sE8zfViEoqloAZSeDbutW67LeDwfgSkSzX3P/mn
    +ZKLCyXS1qpPyPM1UzfzWwescbN7qDrw/COeFjStr1KCK8Da5rYXOHEnLdL1CJlU
    AHC8g9ahzllBv/3VgVvf0g36177alCRrWZir13eM11vIIeSqy+i6quAlayBlL0aR
    V9OYwF6G6C6MV5YABxDxzXc82stL6NDO8ZL/RlazallZdIiDhkkmmUZIRst30qm7
    na/5WUVwFRcIojY+0SHnbmXLZ/XUbor7X6GH1a45cfwYoxF8+V7ZrtbgUc+bbyqw
    MUCttUlf4IJDsh0815ugYotL5h/CsMHe3z+wJZIwOJXLuwk5Rmst2kGmEhid2F2Q
    Ym1P6chXqP5AWtdJfJ91v6SAXJ5cVaSZzG6TK6noVA6xMOUsvb9V9ZV+DJTtYkzM
    XUfbod6VKZ7nLKbXwdkpWHDC8/0Zyau0U9bJkqGC4cUKnBp3or6kn8OscHpca5+Z
    8c6gm2FFbBqa0vG057WtvpBWeNGmm7x1hV1i374bM0/3v1l/vPe/iwWlmznxxnbe
    qtYKEjVnmEu9bkDa6CvT2xXdAGDNasVlADXYxlOeh4YJEF65VWpDOZepmtgP/RRV
    CURy13VqIhSTaRm0DD7AHx8DRq/qF38KyP8Cqxm08+tj7LQtInRNbvyKnqOwSFS/
    /v9eS5zqF6KVcUMMQFipVp8weUKr6qGjrwsm5jqPM1ztJqWUOrBcj+L+S2k9HsL1
    /5FLZW04uW2RTLJq0sUJkaqkSuNIzxvQ2ALKRQsagTtQ3ju4f1LkvwH3frFoGDaf
    /0dny/QygX0+dX1gME3cMOcP2PwbCJ7XeJ88O/KTlgxWrVH7zuupeaqFr+sgKJdz
    Ct9L7Xv429YhpMy++gq1DZQIaSsRoPWtuquU4HJnRKBUh53JQOmt0cb1/6TdMu4u
    JDnA9epnXtMMJa1f2b4rKa+jKgMIdu/SaDo9Ix9FxwPmHppPnAM06XyOxPB07mia
    v/lDPWyWwdDm6jJqc7JWMFGrB/edX119l11eyO+RovolO2LawtSHEAH9Q1t3nyQb
    HSnkOWSb350IiajTcm9Nq5zGbydO05exx6QWea5xao/QUzUBCrWtlA52WP/eJ3Xy
    jL8BvvlKbJrOsgZVsn8Lu6YqFKf7VVmB3ngcfAxVqLkEKPvL1nmylxw3I6NTj/f5
    r1YohXVcgelp2zewCfAbD6DmJ3A+MQp0Abex6hYXZsA9W9KtUKYT6w4RgbwFBzOn
    2uwQkWCRfTzK6ayF4yXpAzrMebUtkFI/Q3pTwngAwsObBBgBAgAmAhsCFiEEEMZP
    0Rmxs5lKK217XrlVakM5l6kFAlrD7KIFCQXYaf4CKcFdIAQZAQIABgUCWK3ppAAK
    CRDhQ63uiaLi6/0DEACPuRbIzXGGSmFLxHJIOnVnFDwIlNtyLhHcUGCbs9Bui2fn
    YF3wKE9zT+a6SllhEKiCt4y+Hh/eW/fGvEoagfxVM5jywTzN9WISiqWgBlJ4Nu61
    brst4PB+BKRLNfc/+af5kosLJdLWqk/I8zVTN/NbB6xxs3uoOvD8I54WNK2vUoIr
    wNrmthc4cSct0vUImVQAcLyD1qHOWUG//dWBW9/SDfrXvtqUJGtZmKvXd4zXW8gh
    5KrL6Lqq4CVrIGUvRpFX05jAXoboLoxXlgAHEPHNdzzay0vo0M7xkv9GVrNqWVl0
    iIOGSSaZRkhGy3fSqbudr/lZRXAVFwiiNj7RIeduZctn9dRuivtfoYfVrjlx/Bij
    EXz5Xtmu1uBRz5tvKrAxQK21SV/ggkOyHTzXm6Bii0vmH8Kwwd7fP7AlkjA4lcu7
    CTlGay3aQaYSGJ3YXZBibU/pyFeo/kBa10l8n3W/pIBcnlxVpJnMbpMrqehUDrEw
    5Sy9v1X1lX4MlO1iTMxdR9uh3pUpnucsptfB2SlYcMLz/RnJq7RT1smSoYLhxQqc
    GneivqSfw6xwelxrn5nxzqCbYUVsGprS8bTnta2+kFZ40aabvHWFXWLfvhszT/e/
    WX+897+LBaWbOfHGdt6q1goSNWeYS71uQNroK9PbFd0AYM1qxWUANdjGU56HhgkQ
    XrlVakM5l6nwoBAAtiLJZS/P+vEIgrbevFs9skRQ4tbzpsKaPCrd9yQDbe873fS1
    Fs29Pb+Ug+PHKDBhK0IEgXEwgW1qm7/VlaewDn50Ev5p4jIDlGwZWcWr3iA93+OX
    6WrJpaYgWsbShXBswGusg/HAsZHzjJ5AncstsrlssR630rC5Fi9DDkFAMW4k4Xdi
    aLPYhtGBdt4NTamV6q1DmTnz5B6G0f+CPypWtd8RpsU5IRX/lWwc+FTyQlnOCfUW
    yh3oaAg/39/Y4bb19OS74wUvorvHTWzRcZJxw2bTBfb97+JLJbUCvnFw9/j2I6IK
    c9+ignZdbZyjciW2jaV2hdm6eXNA5BGsg/SfWZpjddMiW2L35NIpLTAczObd35dA
    y/kZpLwGs56uI33Fi1+kknqZarF0zVWEscXzgA4/s0yjPdideYSP5uOhvoQHHwi4
    k2B1GsLuQLDDKec2s1dW8/LiJQTWOiMy5DxgkDW4/ITiwbhxblOm5KbaTAG+VS96
    80RoZ4tRp3uPTGKpCZKxBxh8BRAl0GwpjX+tjTZikSNg39TbP0ThyOih0apPukL4
    HjYWc5AUHvdq2/c7vrMf9NtBmL0VSmaAevrwIO+OOKT/EF7Lv2ClXnNWNTIa0COp
    vvtNlokhOg/V6kpxupnSvUWiZsOad/3LAm7z+h0QHOrhMph84HzOrExJ8SPCw4QE
    GAECAA8FAlit6aQCGwIFCQHhM4ACKQkQXrlVakM5l6nBXSAEGQECAAYFAlit6aQA
    CgkQ4UOt7omi4uv9AxAAj7kWyM1xhkphS8RySDp1ZxQ8CJTbci4R3FBgm7PQbotn
    52Bd8ChPc0/mukpZYRCogreMvh4f3lv3xrxKGoH8VTOY8sE8zfViEoqloAZSeDbu
    tW67LeDwfgSkSzX3P/mn+ZKLCyXS1qpPyPM1UzfzWwescbN7qDrw/COeFjStr1KC
    K8Da5rYXOHEnLdL1CJlUAHC8g9ahzllBv/3VgVvf0g36177alCRrWZir13eM11vI
    IeSqy+i6quAlayBlL0aRV9OYwF6G6C6MV5YABxDxzXc82stL6NDO8ZL/RlazallZ
    dIiDhkkmmUZIRst30qm7na/5WUVwFRcIojY+0SHnbmXLZ/XUbor7X6GH1a45cfwY
    oxF8+V7ZrtbgUc+bbyqwMUCttUlf4IJDsh0815ugYotL5h/CsMHe3z+wJZIwOJXL
    uwk5Rmst2kGmEhid2F2QYm1P6chXqP5AWtdJfJ91v6SAXJ5cVaSZzG6TK6noVA6x
    MOUsvb9V9ZV+DJTtYkzMXUfbod6VKZ7nLKbXwdkpWHDC8/0Zyau0U9bJkqGC4cUK
    nBp3or6kn8OscHpca5+Z8c6gm2FFbBqa0vG057WtvpBWeNGmm7x1hV1i374bM0/3
    v1l/vPe/iwWlmznxxnbeqtYKEjVnmEu9bkDa6CvT2xXdAGDNasVlADXYxlOeh4Zo
    fg/9GmX4IQmZ83yWinJd4gWjk9Zr6XAVK1vj6/gh1iHVLYUkEoqomtEBejHNnWNS
    VjcTsdGVzTKs8k8r1aBrjpwzv+CRyOavRA2NJTtU3cIMROW+Gqg+GW9lH8kRMBhG
    r+xXNV1iyJU7UDjYqcdKlt2UIpokx1erRvP4FdChcng5wfcQbJgQrLjfln8w4aoN
    JPU4PrkOj81262iZrPoyUfkEq7j338VaFWyxVbocJAR2zl7iJAmpTXj5FuM/9Ecf
    BhLbBdiIj5XBqeGZqFdvsWmlyWZ6L/2ZCqVL8mAlh9PBRUPVpeir4nnIfFB9+gXh
    lSm9N7G+C+a37vtnDZIf3yKqwY3WuVcz/SC4nPo/Y9EpDNR0BCbe3z67mK3imJ05
    fChxBtGGSJkleqnGRdHaYjwzwY4H2E1Urj0nGWJNz3dmiKNMTiVenG4u2mooCHPo
    eAdTg4KRr0W44fQhw9Gal2rQOmHM0Eg4OBMzS9+rKRI+TJzcNzqp16XYLusPMD5L
    6VOMV8+fETOxZ81/ovR7Vr/0tdmPdsO9YhtUmX8S+ArL8zSJ3QYQZcQDmbs5cGQW
    MRtTdh8mC/iw/QqfrXSJ8BE0F2cCIAud8GSpUxLq4rJHlkwx9rCyaSWM+T8cDDNv
    1vOJ+uJrjQoM9gsTJ8VkfFGibiHgg/o1r5xNhndn7zLI/uPOwU0EWK3sgwEQANi2
    6ZBx49YiHxo2a1yOdm+Bn+ILMianNS7Tseu+a71kV0SxvCD3r9+dxxifvcY0eeuI
    z0BvVB0P7gWSSBFFLIkaffnd1l9ORRbqP0qTKwM4FHvfA3mLJCkXg9NjYY4Ve1CO
    Qf3gl59jmZSEkWuJqUIIf405Ps7qZUJ4uGk4b15zqVzlFCyIQ2uVacT7RCk2/GgA
    6ked0Zk/JCzMHsmehCnzJ9JPZAaPjB6fH4o3rDXlDpEmT+3q6rp7Vlc253i4b4/u
    MEAmXYYzhXzS+iONALfYNJ8xRd/edYFBLuxpbwURP+ABB3DMtxRr4kS7rl7fOAql
    tR0RDX1AflZGl51pFevk+CXPU38vBrAWFypDctLFnoWM8Xq4tSyk0BtO6LylKti/
    nsjVrSByvFlJFHA0Cs5OpKDjI5bfRi8bEjaVznvq7t4ocu/329nCknDPZLbLdZT0
    qURDaVl+4f4xSvTEnhw0/TFWIKfZmVCjTd7WPVgaabXAXQUfCnUh1+mz3WcpfSU0
    WnCUOPwe2d/7OLLfw3CwYRZtSxlupKeB2DaYQXskPyJPPm6ps4jpeqWr7I8eK59G
    atpZV7rEadJwbtBbNIEq9w9wKgHxw532K+xWF35mMlk1vync+I4U/1twclIUbBnv
    YfbghQl4iTjEhAUvoFe2AGfXXIl0HsdtCuuxQTR9ABEBAAHCwXwEGAEIACYCGwwW
    IQQQxk/RGbGzmUorbXteuVVqQzmXqQUCXk+1ggUJCWQv/wAKCRBeuVVqQzmXqfiR
    EADqWclGesesZbjcic0UdvEM+H1E9VnbBBRVhSHCzyAoKdDo9N+avCh7Bh9F2V5M
    3yMqBVeIPR+896jmnRot0XIGiJOhay7V4pfJTglYyMu7+1LdaWonq7qDfe262IDH
    RbZ0yLkYedU4dH+PyNgkoJ8dohbjyvsxZc6+T2pqX5X7fNDYK6t6EjISneHNA2L7
    9wSPdd52L6T5ltstED5XKosaHyi2Yq6yHwWePHDji6P/SBgVKPHVPY/dLaSbbT8p
    ia4lsvzQR1cp891U4bNtpkFy29KAbO/Q0m2oGETLZy4XxotS0UNrbfTUCgvrE37G
    Jy/qxNq/sYwkpsiIivoWG6I2YqJWiDqnkk6F494IojaokRK9XqAhVoQKxy1S4mMY
    Ppj6X8NVwHkaD0VWqhcVi0S2M278VusUt1wR8YkGpdyqlxZi/n0an5cyVYjStYqc
    uke5pLUvPF/LHSF/0x5KkvIf/5bEv5DfvtdH/i5WX1hiCAt6MrXD2vN2QSrpS4hu
    7b1qIIwHVmFMKSy1mgsQ3FF5Vc8WXFJAr1wjMOu2qYIiBbFXFG1aUISCmgfNkDjH
    i2r0BUuRLqTmhze6xVWjpzsjiFMGU70RseqvKBTAsHHdIt6MoTRIWtRDRkLA9vQz
    dqZ0aMasfVJ9y4iN4W+J8r//wm0rluCzE2Nu0jPx05iDF8LBfAQYAQIAJgIbDBYh
    BBDGT9EZsbOZSitte165VWpDOZepBQJaw+yiBQkF2GcfAAoJEF65VWpDOZepmmoP
    /RG4DSb9xJq5KcZ0IHYfrgNg6mxUL8zJTaUYD9+U0FYFznncf8J/lcHRtGh8pC0o
    kDok/szZI+kGe6/eYBxvluyUlHl5eCHkr4r2kOixdfyWjot0pNpKS3PrIR8UYQlQ
    TGlLsiBkzpaSPtmKJuiv1qlyoxA9qqKRfZiuo1X6Y4dVlSP9wTCXaxzbUM+igDfC
    qeCkeqZ4jDYn4YoiYAz7wDgHihJOCbrnDOcB1SlDjAam/Bn1N6pP1lyStsFOG3WP
    uVSEjP6tZrOpq9dO+g4Hi45f0jeJyJabaIMpqbtU2ucc2yCfsPLihuR+y7e77+ha
    0b2kl++7I2mzDY4GzxxipN+GjMGwHEQaXOs/ZhpXiot2qWQ+XHwCMuyw9Qf/s2FN
    pFebArcW24WzUCmhM568yu/i1u/iFXIggw+nNELpUXJlAKFs6yPDOIZeymZfr+bY
    mRDMEfS5Qab3KHE04igb7hMXcrkAz+i8Owwf53AoGkSe2pmaZYrIXYe5WmGbAdPK
    ru7ONjzRtCSz0eUbCq5gQYvYrUXVFWP+O4zZ1hUOpVLggZf14JDB35wUoasFclVP
    0UdYH+rbq+NsuqnjGSzIidRwgcAMaTf7kJVj2cXMhlbDwEyMGih6iEFJViZDlN69
    9wv0AYUY3eJ7h29vx5aqUXrQysUA9ymiS2RZESViw9PcwsFlBBgBAgAPBQJYreyD
    AhsMBQkB4TOAAAoJEF65VWpDOZep2doQANMpJn1nm+Py0H51mpN4wCyN9Ki9uNtn
    OLJHYyhg6rbXKtMmQYU5POYyLk67cMy87bnBNS6C+Mt4HB1ASPJrWH+qO5Ij9ZvN
    tq0iJOddb1v45EuzS6U7ICJOkYB0l8pqropD3jjUxdRVPFmgiof5oyS/BlesqB/8
    wbt0uFsftfUVUUAGqGe5ThY71gvOf5kdx+SQU5oJQF9QUXDsnBlBFffQBkUlQwC9
    nWYPajs7KH1uRPf45jpbdqZ1XcyL48+ErQdd9dv06move+/O2kNPzmn0Mvn3chpb
    nsSaGXdEORCMzEO3hNCFX7KKWeZbB4pi4Fx7GZaYUnOd6uUoxq8O4tl6oiZY36SI
    +d9N8Pol7eH31nh/daZIndIIn5nT1abjPyExMNPL0hKBNulEh4cbBy6D6RbGznsX
    LDVzAcYBS9GorQ8zrmd3gcpn3r4gkcK/rsbk7X4L+BSmgFF7Qb4dlP/LfQT1HUzp
    ExHPK6mDMDEguai9jxIB3b2CqfpGtPtlwwBBxSiT5P7ZicbYIEOGyx3v1SfsAJo2
    JZuawcLaK6HJHDL171/z+ESpkuBA0ec3k3/x+JsJsUFKB3bn8MfpEuIW4fO9pClX
    Uohqx+HghSmlsut5NV01N1taLeoolIbzcN/HFmJEW+MTrfS/4sl9Fdo/ffZYuPSn
    NBjIn50vUmCKzsFNBFit5JkBEADTeLzJZo5QdnhvdJGHLBV/tlJMbbgnQ6694a+H
    dN73Dzbzym6JYPiZDmOF0M6x+8Xt+CoxAkzRwYswJqka50/Rt1EoTjFb5jrNqSIP
    UqeKiF2uiP+Y9cDh4kMQcp0YdGjvjQfBCNkycY08mfCu15wuU+Io92GKPDOygygp
    fWJB/1mQUQftkIRxq60B7sdzy7yMtNDzImPEyGQ9kNePiKWgn7CPymNfQ5FKdyIX
    ZB6hjO1/6UTzNLhscQS8ZAWwFaNP5fd3YcppJ9ow1u4OFZ4mQ+UpfZAN5tMocIgE
    3ZIX2LBdy6du1MCNMr26Ees21EU/cSH3jwgDdMJQkKt91Dg9p0+T4rXcsBdNIKRq
    vUxQ29VtNG+eWW99sP+5pr4YU+P17LvfMeQk0Td+AGox+Y1mCpiRsk0n2cxA7PwY
    2c0IdVrovh/AdPfhpAPMzyUtwXag9V8ZRGXscRu0WokMt9x9QwjxRfX0oZ4Sm7SY
    FqmlE+Msx49TFLPVhtFkNm6c2IAnjYxcQIhrUaRpTV0dUV7d3715w/2Ruwcfctsu
    V7WzIz3+bTKjsBArpEf8v9z7p28/nZNrIIOLic0X/0jbab+2sgepIYB/tlSRULj1
    FY8OjPwx5DRZZYoHGB8adyUISEmt71YhJE7337Vk83eLQQxbbgEgm2s8wYXv8Ewc
    3nCXJwARAQABwsFfBBgBAgAJBQJYreSZAhsMAAoJEF65VWpDOZep2GMQAIditywv
    BA7scZShT+ox0gO5XmnKGuMxQTJyeFTI2GaljTpXdu2VNDBh2Fg6Pj/PQrk4eiuc
    bw1cNbZRQiOwIWpqCIGf7kvWIWI6WHsabGbWoJxA68kDHQn1H56RDGaaPK8Xr1SX
    bnchpZEoUIX0x2sz9X34AwZG11AwxrsFrgak/oiM4xSsKGQWSkZ2wAhQDWFYGmF+
    7rFhDQaU7Rr/+rtvTWX7TUvNbuaxAWKMcF7JO4pSptr+2qEBIGgwPHl37hTn5mqh
    EeaUOTYE6q/hiv7vtT0zd8e08xEvHuSUAL8FrI7qwqMWJaIQP6Vin/PlpsAjWmqb
    UO22+7xP7eUvGKVQWF1tNR6J1LEuKq+UTSlfePTopsczefUoZc8b+DLonE2zqeo7
    mevGhl7DMEYDW4fB+5qS6AMrmOBj1JYyIDrTHcydt/IZuzH1GKsY7rzK01boEp6b
    KWXyVHvqR0LkfgOBEyUcLpxjY/XrujHbzrvUfcKAeZKWBciA1G97o7BPP8CWdCO9
    zbW5Jo8UkBst6Q90TgnE5y+RfZuas4tmuHlYv5CB0bbkLzcwstyOxR3Ti75Lp6fM
    I9oO1FZTQ1ITI9V9cyEXRWH4qeSX+8R0ZsG3fsqKByJ9uUcgkzDLojc9292IYcm4
    lsshqofhaVH0XMbN3iND/ZNlh9rEo5j1w0F9
    =yyEm
    -----END PGP PUBLIC KEY BLOCK-----
    

Research Interests

Nicholas’ research focuses on security, sustainability, as well as fundamental principles of distributed ledger and blockchain technologies.


Bio

Nicholas received a master’s degree in Computer Science Management with distinction and a bachelor’s degree in Software Engineering from TU Wien. He is currently working towards a PhD on the governing mechanisms, security, and maintainability aspects of distributed ledger technologies and smart contracts and his research interests include Nakamoto consensus, distributed agreement protocols, and computing education for distributed systems topics.


Publications

Top Publications:

  • Blocks and Chains: Introduction to Bitcoin, Cryptocurrencies, and Their Consensus Mechanisms (2017)
    • ARTICLE--
    • Aljosha Judmayer and Nicholas Stifter and Katharina Krombholz and Edgar R. Weippl
    • Synthesis Lectures on Information Security, Privacy, and Trust
    @ARTICLE{Judmayer2017Blocks,
       author = {Aljosha Judmayer and Nicholas Stifter and Katharina Krombholz and {Edgar R.} Weippl},
       title = {Blocks and Chains: Introduction to Bitcoin,
       Cryptocurrencies,
       and Their Consensus Mechanisms},
       journal = {Synthesis Lectures on Information Security,
       Privacy,
       and Trust},
       year = {2017},
       pdf = {https://doi.org/10.2200/S00773ED1V01Y201704SPT020},
    }
  • Merged Mining: Curse or Cure? (2017)
    • INPROCEEDINGS--
    • Aljosha Judmayer and Alexei Zamyatin and Nicholas Stifter and Artemios G. Voyiatzis and Edgar R. Weippl
    • International Workshop on Cryptocurrencies and Blockchain Technology (CBT 17)
    @INPROCEEDINGS{Judmayer2017Merged,
       author = {Aljosha Judmayer and Alexei Zamyatin and Nicholas Stifter and {Artemios G.} Voyiatzis and {Edgar R.} Weippl},
       title = {Merged Mining: Curse or Cure?},
       booktitle = {International Workshop on Cryptocurrencies and Blockchain Technology (CBT 17)},
       year = {2017},
       month = {9},
       pdf = {201709 - AJudmayer - CBT_Merged_Mining_camera_ready_final.pdf},
    }
  • Pitchforks in Cryptocurrencies: Enforcing rule changes through offensive forking- and consensus techniques (Short Paper) (2018)
    • INPROCEEDINGS--
    • Aljosha Judmayer and Nicholas Stifter and Philipp Schindler and Edgar R. Weippl
    • International Workshop on Cryptocurrencies and Blockchain Technology (CBT 2018)
    @INPROCEEDINGS{Judmayer2018Pitchforks,
       author = {Aljosha Judmayer and Nicholas Stifter and Philipp Schindler and {Edgar R.} Weippl},
       title = {Pitchforks in Cryptocurrencies: Enforcing rule changes through offensive forking- and consensus techniques (Short Paper)},
       booktitle = {International Workshop on Cryptocurrencies and Blockchain Technology (CBT 2018)},
       year = {2018},
       month = {9},
       pdf = {201809 - AJudmayer - Pitchfork_2018-09-05.pdf},
    }
  • HydRand: Practical Continuous Distributed Randomness (2020)
    • INPROCEEDINGStruetrue
    • Philipp Schindler and Aljosha Judmayer and Nicholas Stifter and Edgar R. Weippl
    • 2020 IEEE Symposium on Security and Privacy (SP)
    @INPROCEEDINGS{Schindler2020HydRand,
       author = {Philipp Schindler and Aljosha Judmayer and Nicholas Stifter and {Edgar R.} Weippl},
       authorhotlist = {true},
       sbahotlist = {true},
       title = {HydRand: Practical Continuous Distributed Randomness},
       booktitle = {2020 IEEE Symposium on Security and Privacy (SP)},
       year = {2020},
       month = {5},
       pdf = {https://eprint.iacr.org/2018/319.pdf},
    }
  • Avoiding Risky Designs When Using Blockchain Technologies in Cyber-Physical Systems (2019)
    • INPROCEEDINGS--
    • Nicholas Stifter and Matthias Eckhart and Bernhard Brenner and Edgar R. Weippl
    • 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)
    @INPROCEEDINGS{Stifter2019Avoiding,
       author = {Nicholas Stifter and Matthias Eckhart and Bernhard Brenner and {Edgar R.} Weippl},
       title = {Avoiding Risky Designs When Using Blockchain Technologies in Cyber-Physical Systems},
       booktitle = {24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)},
       year = {2019},
       month = {9},
       pdf = {2019 - NStifter - Avoiding risky designs.pdf},
    }
  • Echoes of the Past: Recovering Blockchain Metrics from Merged Mining (2019)
    • INPROCEEDINGS--
    • Nicholas Stifter and Philipp Schindler and Aljosha Judmayer and Alexei Zamyatin and Andreas Kern and Edgar R. Weippl
    • Financial Cryptography and Data Security 2019
    @INPROCEEDINGS{Stifter2019Echoes,
       author = {Nicholas Stifter and Philipp Schindler and Aljosha Judmayer and Alexei Zamyatin and Andreas Kern and {Edgar R.} Weippl},
       title = {Echoes of the Past: Recovering Blockchain Metrics from Merged Mining},
       booktitle = {Financial Cryptography and Data Security 2019},
       year = {2019},
       month = {2},
       pdf = {https://eprint.iacr.org/2018/1134.pdf},
    }
  • Revisiting Practical Byzantine Fault Tolerance Through Blockchain Technologies (2019)
    • INBOOK--
    • Nicholas Stifter and Aljosha Judmayer and Edgar R. Weippl
    @INBOOK{Stifter2019Revisiting,
       author = {Nicholas Stifter and Aljosha Judmayer and {Edgar R.} Weippl},
       title = {Revisiting Practical Byzantine Fault Tolerance Through Blockchain Technologies},
       booktitle = {Security and Quality in Cyber-Physical Systems Engineering},
       year = {2019},
       pdf = {https://link.springer.com/book/10.1007/978-3-030-25312-7},
    }
  • Proof-of-Blackouts? How Proof-of-Work Cryptocurrencies Could Affect Power Grids (2018)
    • INPROCEEDINGStruetrue
    • Johanna Ullrich and Nicholas Stifter and Aljosha Judmayer and Adrian Dabrowski and Edgar R. Weippl
    • International Symposium on Research in Attacks, Intrusions and Defenses (RAID)
    @INPROCEEDINGS{Ullrich2018ProofofBlackouts,
       author = {Johanna Ullrich and Nicholas Stifter and Aljosha Judmayer and Adrian Dabrowski and {Edgar R.} Weippl},
       authorhotlist = {true},
       sbahotlist = {true},
       title = {Proof-of-Blackouts? How Proof-of-Work Cryptocurrencies Could Affect Power Grids},
       booktitle = {International Symposium on Research in Attacks,
       Intrusions and Defenses (RAID)},
       year = {2018},
       month = {9},
       pdf = {https://www.sqi.at/resources/RAID2018.pdf},
    }
  • (Short Paper) A Wild Velvet Fork Appears! Inclusive Blockchain Protocol Changes in Practice (2018)
    • INPROCEEDINGS--
    • Alexei Zamyatin and Nicholas Stifter and Aljosha Judmayer and Philipp Schindler and Edgar R. Weippl and W.J. Knottenbelt
    • 5th Workshop on Bitcoin and Blockchain Research, Financial Cryptography and Data Security 2018
    @INPROCEEDINGS{Zamyatin2018Short,
       author = {Alexei Zamyatin and Nicholas Stifter and Aljosha Judmayer and Philipp Schindler and {Edgar R.} Weippl and {W.J.} Knottenbelt},
       title = {(Short Paper) A Wild Velvet Fork Appears! Inclusive Blockchain Protocol Changes in Practice},
       booktitle = {5th Workshop on Bitcoin and Blockchain Research,
       Financial Cryptography and Data Security 2018},
       year = {2018},
       month = {2},
       pdf = {https://eprint.iacr.org/2018/087.pdf},
    }

This Website uses Cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close