01539nam a2200241   4500001000700000010001800007090001100025100004100036101000800077200012800085210006500213215002000278300004800298330063400346606002600980606004301006606003801049606003301087606002301120700002401143955001101167995011901178396092  a9789292044671  a396092  a20210305d2020       y0pory50      ba  aeng  aCrypto assetsbRecurso eletrónicoean introduction to digital currencies and distributed ledger technologiesfNigel Smart  aAttikicEuropean Union Agency for Cybersecurity, ENISAd2020  a1 CD-ROMd12 cm  aFicheiro de 3,34 MB em formato PDF (29 p.).  a1. The genesis of bitcoin. 1.1 Hash functions. 1.2 Merkle tree. 1.3 Digital signature. 1.4 Secret sharing. 1.5 Byzantine agreement. 1.6 Electronic cash. 1.7 Zero-knowledge. 1.8 Time stamps. 1.9 Multi-party computation and threshold cryptography. 1.10 Proof of work. 2. Distributed Ledger Technologies and bitcoin. 2.1 The word ‘ledger’. 2.2 The word ‘distributed’. 2.3 The words ‘Distributed Ledger Technology’. 2.4 Provisioned blockchains. 2.5 Non-provisioned blockchains. 2.6 Rewarding validators. 3. Applications. 4. Smart contracts. 5. Securing secret keys. 6. Zero-knowledge proofs. 7. Conclusions. Bibliography.  aMOEDA VIRTUAL9146307  aINFORMAÇÃO GEOREFERENCIADA9347423  aSEGURANÇA INFORMÁTICA9273163  aSEGURANÇA DE DADOS9325959  aTECNOLOGIA9234237  aSMARTbNigel933598  xOferta  104PJCD_318_00000000000000052022-06-066PJCD3189429069aPJcPJfPJ1CD318_125kPJCD318n2022-06-06o0rMOxOferta