\makeglossaries

\newglossaryentry{backdating}
{
        name={Backdating},
        description={An attack trying to forge time-stamps dated in the past}
}
\newglossaryentry{docowner}
{
        name={Document Owner},
        description={The party owning the document for which they request a time-stamp}
}
\newglossaryentry{timestampauthority}
{
        name={Time-Stamp Authority},
        description={A trusted third party in the context of time-stamping}
}
\newglossaryentry{verifier}
{
        name={Verifier},
        description={The party who wants to confirm the validity of a time-stamp}
}
\newglossaryentry{witness}
{
        name={Witness},
        description={An entity who witnessed a timestamp at the time of its creation}
}

\newacronym{dos}{DoS}{Denial of Service}
\newacronym{prng}{PRNG}{Pseudo-Random Number Generator}
\newacronym{tsa}{TSA}{Time-Stamp Authority}
\newacronym{ttp}{TTP}{Trusted Third Party}