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Arbitrated Digital Signatures Requires an unconditionally Ttp as part of the signature generation and signature verification Each entity shares a symmetric key with the TtP Symmetric key cryptography results in a very fast algorithm However, this speedup is overshadowed by the TTP as well as communication overhead9 Arbitrated Digital Signatures • Requires an unconditionally TTP as part of the signature generation and signature verification. • Each entity shares a symmetric key with the TTP • Symmetric key cryptography results in a very fast algorithm • However, this speedup is overshadowed by the TTP as well as communication overhead
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