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Submitted on 18 Dec 20 16:32 UTC. attacker[active] principal Bob[ generates rb knows private b cert_b = G^b ] Bob -> Alice: rb, [cert_b] principal Alice[ generates ra knows private a cert_a = G^a ] Alice -> Bob: ra, [cert_a] principal Bob[ generates y knows private textb yg = G^y sigb = SIGN(y, CONCAT(ra, textb)) ] Bob -> Alice: yg, textb, sigb principal Alice[ _ = SIGNVERIF(yg, CONCAT(ra, textb), sigb)? generates x knows private texta xg = G^x siga = SIGN(x, CONCAT(rb, texta)) ] Alice -> Bob: xg, texta, siga principal Bob[ _ = SIGNVERIF(xg, CONCAT(rb, texta), siga)? ] queries[ freshness? rb unlinkability? rb, cert_b authentication? Bob -> Alice: yg ]
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Title:DTCP_v1.0.vp Note over Bob: generates rb\n knows private b\n cert_b = G^b\n Bob -> Alice: rb, [cert_b] Note over Alice: generates ra\n knows private a\n cert_a = G^a\n Alice -> Bob: ra, [cert_a] Note over Bob: generates y\n knows private textb\n yg = G^y\n sigb = SIGN(y, CONCAT(ra, textb))\n Bob -> Alice: yg, textb, sigb Note over Alice: _ = SIGNVERIF(yg, CONCAT(ra, textb), sigb)?\n generates x\n knows private texta\n xg = G^x\n siga = SIGN(x, CONCAT(rb, texta))\n Alice -> Bob: xg, texta, siga Note over Bob: _ = SIGNVERIF(xg, CONCAT(rb, texta), siga)?\n

Analysis Results

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