Patent SG-11201809661S-A (SG)
Title: Cryptologic rewritable blockchain
Inventor: ATENIESE GIUSEPPE
IPC: H04L9/32
Filed: 2017-05-23
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1 MEM 0 11101 HOE 010 1111 1 0 01 010 1101 010 Ell 1101 I 11110 1111 OEN Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\"\" WO 2017/202756 Al 30 November 2017 (30.11.2017) WIPO I PCT (51) International Patent Classification: (71) Applicants: ACCENTURE GLOBAL SOLUTIONS HO4L 9/32 (2006.01) LIMITED [IE/IE]; 3 Grand Canal Plaza, Grand Street Up- (21) International Application Number: per, Dublin 4 (IE). GSC SECRYPT, LLC [US/US]; 1450 PCT/EP2017/062240 Garden Street, Apt. N503, Hoboken, New Jersey 07030 (US). (22) International Filing Date: (72) Inventors: ATENIESE, Giuseppe; 1125 Maxwell Lane, 23 May 2017 (23.05.2017) Apt. 430, Hoboken, New Jersey 07030 (US). CHIARA- (25) Filing Language: English MONTE, Michael T.; 117 E. 77th St., Apt. 9C, New York, New York 10075 (US). TREAT, David; 27 Lost (26) Publication Language: English Mine Place, Ridgefield, Connecticut 06877 (US). MA- (30) Priority Data: GRI, Bernardo; Via Alberto Fredda, 29, 00139 Rome (IT). 16425044.1 23 May 2016 (23.05.2016) EP VENTURI, Daniele; Via Minerbio 72, 00127 Rome (IT). 16425086.2 11 August 2016 (11.08.2016) EP (74) Agent: MULLER-BORE & PARTNER PATENTAN- 17425018.3 17 February 2017 (17.02.2017) EP 15/596,904 16 May 2017 (16.05.2017) US WALTE PARTG MBB; Friedenheimer Briicke 21, 80639 Miinchen (DE). 15/596,899 16 May 2017 (16.05.2017) US 15/596,922 16 May 2017 (16.05.2017) US (81) Designated States (unless otherwise indicated, for every 15/596,932 16 May 2017 (16.05.2017) US kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, = (54) Title: CRYPTOLOGIC REWRITABLE BLOCKCHAIN = 100 102 1 104, 06 .1 _ — = ',Dart; 1234- — = N. Lull ', 122- 121 ' } Data 600;D:afa1C 124 BlockID L Ic -- (E311)3 131 Data 11 Data 12 125 BlockID , IC187)3 Data 20 BlockID IC(B2) Data 30 Data 31 ' BlockID IC(Bn-1) Data nO Data n1 Data n2 = = BO 61 B2 B3 Bn = = = = = = 150 = \ = 102 104 .1 106 1 = - s BO --Cr e 1 131 --e r r -, B2 -e r r -- s, B3 152 -• 8 IIII 1-1 .4 Figure 1 kr) N (57) : A system includes circuitry for cryptologically rewriting blockchains in a non-tamper-evident or tamper-evident oper- el ation using a key secret held by a trusted party. The blockchains may include a series of blocks secured integrity codes that may prevent non-tamper-evident rewrites by non-trusted parties that are not in possession of the key secret. In some cases, the key may allow valid ei ---- but tamper-evident rewrites of the blockchain by trusted entities. Integrity outputs may be generated from the integrity codes based IN on the content of the previous blocks in the series such that attempts by untrusted parties to replace a block may be detected through 0 coding-inconsistencies with other blocks. ei C [Continued on next page] WO 2017/202756 Al MIDEDIMOMMIDIRMEM0010101101010MIERVOIMIE CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))