{ sth:SecurityTheory
    (CRX-protocol{i:l}(sth-es(sth)) |= ... authenticates 2 messages 
     CRX-protocol{i:l}(sth-es(sth)) |= ... authenticates 3 messages ) }

{ Proof }



Definitions occuring in Statement :  CRX-protocol: CRX-protocol{i:l}(s),  CR-responder6: CR-responder6{i:l}(s),  CR-initiator4: CR-initiator4{i:l}(s),  authentication: prtcl |= bs authenticates n messages ,  sth-es: sth-es(s),  security-theory: SecurityTheory,  all: x:A. B[x],  and: P  Q,  natural_number: $n
Definitions :  limited-type: LimitedType,  universe: Type,  eq_atom: x =a y,  eq_atom: eq_atom$n(x;y),  set: {x:A| B[x]} ,  atom: Atom$n,  dep-isect: Error :dep-isect,  record+: record+,  ses-decrypt: Decrypt,  ses-encrypt: Encrypt,  ses-verify: Verify,  ses-sign: Sign,  ses-rcv: Rcv,  ses-send: Send,  int: ,  ses-new: New,  in-eclass: e  X,  es-E: E,  natural_number: $n,  ses-D-private: ses-D-private(s),  ses-D-public: ses-D-public(s),  cand: A c B,  record-select: r.x,  infix_ap: x f y,  es-causl: (e < e'),  union: left + right,  or: P  Q,  rev_implies: P  Q,  iff: P  Q,  decide: case b of inl(x) => s[x] | inr(y) => t[y],  ifthenelse: if b then t else f fi ,  pi1: fst(t),  ses-key-rel: MatchingKeys(k1;k2),  ycomb: Y,  ses-flow: ses-flow(s;es;a;e1;e2),  void: Void,  false: False,  assert: b,  sym: Sym(T;x,y.E[x; y]),  ses-K: PropertyK,  ses-S: PropertyS,  ses-D: PropertyD,  ses-R: PropertyR,  ses-V: PropertyV,  ses-flow-axiom: PropertyF,  ses-nonce-disjoint: NoncesCiphersAndKeysDisjoint,  ses-disjoint: ActionsDisjoint,  ses-ordering': ses-ordering'(s),  ses-NR: PropertyNR,  ses-NU: PropertyNU,  guard: {T},  ses-axioms: SecurityAxioms,  CR-responder6: CR-responder6{i:l}(s),  member: t  T,  strong-subtype: strong-subtype(A;B),  le: A  B,  ge: i  j ,  less_than: a < b,  uimplies: b supposing a,  uiff: uiff(P;Q),  subtype_rel: A r B,  isect: x:A. B[x],  uall: [x:A]. B[x],  ses-info: Info,  event-ordering+: EO+(Info),  ses-honest: Honest(A),  Id: Id,  equal: s = t,  not: A,  apply: f a,  is-basic-seq: thr[A;B] |= bs,  ses-thread: Thread,  matching-conversation: MatchingConversation(n;thr1;thr2),  prop: ,  security-theory: SecurityTheory,  CR-initiator4: CR-initiator4{i:l}(s),  CRX-protocol: CRX-protocol{i:l}(s),  authentication: prtcl |= bs authenticates n messages ,  all: x:A. B[x],  implies: P  Q,  function: x:A  B[x],  exists: x:A. B[x],  and: P  Q,  product: x:A  B[x],  ses-thread-loc: loc(thr)= A,  sth-es: sth-es(s),  sq_type: SQType(T),  nil: [],  id-sdata: data(x),  pair: <a, b>,  sdata-pair: <d1, d2>,  atom-sdata: data(a),  token: "$token",  mk-pa: n(v),  cons: [car / cdr],  ses-is-protocol-action: pa(e),  minus: -n,  lelt: i  j < k,  real: ,  rationals: ,  ses-act: Act,  subtype: S  T,  add: n + m,  select: l[i],  lambda: x.A[x],  length: ||as||,  subtract: n - m,  true: True,  es-le: e loc e' ,  es-causle: e c e',  existse-before: e<e'.P[e],  existse-le: ee'.P[e],  alle-lt: e<e'.P[e],  alle-le: ee'.P[e],  alle-between1: e[e1,e2).P[e],  existse-between1: e[e1,e2).P[e],  alle-between2: e[e1,e2].P[e],  existse-between2: e[e1,e2].P[e],  existse-between3: e(e1,e2].P[e],  es-fset-loc: i  locs(s),  es-r-immediate-pred: es-r-immediate-pred(es;R;e';e),  same-thread: same-thread(es;p;e;e'),  collect-event: collect-event(es;X;n;v.num[v];L.P[L];e),  cut-order: a (X;f) b,  path-goes-thru: x-f*-y thru i,  lg-edge: lg-edge(g;a;b),  ses-action: Action(e),  ses-legal-sequence: Legal(pas) given prvt,  decidable: Dec(P),  int_seg: {i..j},  event_ordering: EO,  es-locl: (e <loc e'),  so_lambda: x.t[x],  uni_sat: a = !x:T. Q[x],  inv_funs: InvFuns(A;B;f;g),  inject: Inj(A;B;f),  eqfun_p: IsEqFun(T;eq),  refl: Refl(T;x,y.E[x; y]),  urefl: UniformlyRefl(T;x,y.E[x; y]),  usym: UniformlySym(T;x,y.E[x; y]),  trans: Trans(T;x,y.E[x; y]),  utrans: UniformlyTrans(T;x,y.E[x; y]),  anti_sym: AntiSym(T;x,y.R[x; y]),  uanti_sym: UniformlyAntiSym(T;x,y.R[x; y]),  connex: Connex(T;x,y.R[x; y]),  uconnex: uconnex(T; x,y.R[x; y]),  coprime: CoPrime(a,b),  ident: Ident(T;op;id),  assoc: Assoc(T;op),  comm: Comm(T;op),  inverse: Inverse(T;op;id;inv),  bilinear: BiLinear(T;pl;tm),  bilinear_p: IsBilinear(A;B;C;+a;+b;+c;f),  action_p: IsAction(A;x;e;S;f),  dist_1op_2op_lr: Dist1op2opLR(A;1op;2op),  fun_thru_1op: fun_thru_1op(A;B;opa;opb;f),  fun_thru_2op: FunThru2op(A;B;opa;opb;f),  cancel: Cancel(T;S;op),  monot: monot(T;x,y.R[x; y];f),  monoid_p: IsMonoid(T;op;id),  group_p: IsGroup(T;op;id;inv),  monoid_hom_p: IsMonHom{M1,M2}(f),  grp_leq: a  b,  integ_dom_p: IsIntegDom(r),  prime_ideal_p: IsPrimeIdeal(R;P),  no_repeats: no_repeats(T;l),  value-type: value-type(T),  valueall-type: valueall-type(T),  is_list_splitting: is_list_splitting(T;L;LL;L2;f),  is_accum_splitting: is_accum_splitting(T;A;L;LL;L2;f;g;x),  req: x = y,  rnonneg: rnonneg(r),  rleq: x  y,  i-member: r  I,  partitions: partitions(I;p),  modulus-of-ccontinuity: modulus-of-ccontinuity(omega;I;f),  fpf-sub: f  g,  squash: T,  sq_stable: SqStable(P),  list: type List,  ses-protocol1-legal: Legal(bss),  ses-is-protocol-actions: pas(thr),  l_exists: (xL. P[x]),  ses-basic-sequence1: Basic1,  ses-protocol1-thread: (thr is one of bss at A),  ses-thread-member: e  thr,  ses-protocol1: Protocol1(bss),  es-loc: loc(e),  ses-signer: signer(e),  es-base-E: es-base-E(es),  security-event-structure: SES,  encryption-key: Key,  event-has*: e has* a,  CR-responder5: CR-responder5{i:l}(s),  CR-responder4: CR-responder4{i:l}(s),  CR-initiator2: CR-initiator2{i:l}(s),  CR-initiator1: CR-initiator1{i:l}(s),  bool: ,  atom: Atom,  fpf-cap: f(x)?z,  fpf: a:A fp-> B[a],  l_member: (x  l),  l_all: (xL.P[x]),  l_contains: A  B,  ses-legal-thread: Legal(thr)@A,  tl: tl(l),  hd: hd(l),  quotient: x,y:A//B[x; y],  bag: bag(T),  so_lambda: x y.t[x; y],  eclass: EClass(A[eo; e]),  top: Top,  eclass-val: X(e),  sdata: SecurityData,  es-E-interface: E(X),  sqequal: s ~ t,  nat_plus: ,  nat: ,  reducible: reducible(a),  prime: prime(a),  fun-connected: y is f*(x),  qle: r  s,  qless: r < s,  q-rel: q-rel(r;x),  sq_exists: x:{A| B[x]},  i-finite: i-finite(I),  i-closed: i-closed(I),  p-outcome: Outcome,  dstype: dstype(TypeNames; d; a),  fset-member: a  s,  f-subset: xs  ys,  fset: FSet{T},  fset-closed: (s closed under fs),  IdLnk: IdLnk,  Knd: Knd,  MaName: MaName,  l_disjoint: l_disjoint(T;l1;l2),  consensus-state3: consensus-state3(T),  cs-not-completed: in state s, a has not completed inning i,  cs-archived: by state s, a archived v in inning i,  cs-passed: by state s, a passed inning i without archiving a value,  cs-inning-committed: in state s, inning i has committed v,  cs-inning-committable: in state s, inning i could commit v ,  cs-archive-blocked: in state s, ws' blocks ws from archiving v in inning i,  cs-precondition: state s may consider v in inning i,  consensus-rcv: consensus-rcv(V;A),  runEvents: runEvents(r),  pi2: snd(t),  btrue: tt,  record: record(x.T[x]),  sdata_atoms_pair: sdata_atoms_pair{sdata_atoms_pair_compseq_tag_def:o}(d2; d1),  null: null(as),  sdata_atoms_atom: sdata_atoms_atom{sdata_atoms_atom_compseq_tag_def:o}(a),  free-from-atom: x:T||a,  class-value-has: X(e) has a,  event-has: (e has a),  ses-info-flow: ->>,  rel_star: R^*,  release-before: (a released before e),  send-rcv-match: send-rcv-match(m1;m2),  spread: spread def,  lt_int: i <z j,  zip: zip(as;bs),  firstn: firstn(n;as),  ses-msg: isMsg(e),  thread-messages: thread-messages(thr),  tactic: Error :tactic,  iseg: l1  l2,  bEvents: Error :bEvents,  string: Error :string,  ses-encryption-key: key(e),  ses-decryption-key: key(e),  ses-private-key: PrivateKey(A),  tree: Tree(E),  rec: rec(x.A[x])
Lemmas :  atom1_sq,  atom_sq,  Id_sq,  guard_wf,  sdata_sq,  int_sq,  iseg_select2,  iseg_length,  iseg_same_length,  ses-thread-member_wf,  iseg_wf,  id-sdata-not-pair,  ses-msg-cases,  non_neg_length,  length_wf1,  l_all_cons,  and_functionality_wrt_iff,  l_all-nil,  l_all_wf2,  l_all_wf,  send-rcv-match_wf,  release-before_wf,  event-has*_wf,  ses-info-flow_wf,  rel_star_wf,  event-has_wf,  nonce-release-lemma2,  ses-protocol1-thread_wf,  nat_wf,  select_member,  es-loc_wf,  event-has*-iff,  class-value-has_wf,  sdata-has-atom,  cons_member,  id-sdata-one-one,  atom-sdata-one-one,  squash_wf,  bool_wf,  set_subtype_base,  eclass-val_wf,  ifthenelse_wf,  true_wf,  assert_elim,  pi1_wf_top,  pi2_wf,  sdata-pair-one-one,  atom-sdata_wf,  sdata-pair_wf,  id-sdata_wf,  id-sdata-not-pair2,  decidable__equal_int,  int_seg_properties,  es-interface-top,  sdata_wf,  ses-verify_wf,  subtype_rel_wf,  eclass_wf,  in-eclass_wf,  assert_wf,  top_wf,  es-interface-subtype_rel,  product_subtype_base,  sdata_subtype_base,  atom2_subtype_base,  atom1_subtype_base,  sq_stable__assert,  ses-sign_wf,  length_wf_nat,  es-interface-subtype_rel2,  es-base-E_wf,  subtype_rel_self,  ses-action_wf,  ses-new_wf,  ses-send_wf,  ses-rcv_wf,  ses-encrypt_wf,  encryption-key_wf,  ses-decrypt_wf,  ses-basic-sequence1_wf,  CR-initiator1_wf,  CR-initiator2_wf,  CR-responder4_wf,  CR-responder5_wf,  false_wf,  l_exists_wf,  iff_transitivity,  l_exists_cons,  or_functionality_wrt_iff,  iff_wf,  rev_implies_wf,  l_exists_nil,  l_member_wf,  le_wf,  int_subtype_base,  subtype_base_sq,  select_wf,  es-E_wf,  ses-act_wf,  member_wf,  es-locl_wf,  int_seg_wf,  event-ordering+_inc,  decidable__es-locl,  sq_stable_from_decidable,  sq_stable__all,  CRX-protocol-legal,  sth-es_wf,  not_wf,  Id_wf,  CRX-protocol_wf,  ses-thread_wf,  ses-thread-loc_wf,  is-basic-seq_wf,  CR-initiator4_wf,  matching-conversation_wf,  authentication_wf,  event-ordering+_wf,  ses-info_wf,  ses-honest_wf,  security-theory_wf,  CR-responder6_wf,  sth-axioms,  ses-axioms-imply,  ses-D-implies

\mforall{}sth:SecurityTheory
    (CRX-protocol\{i:l\}(sth-es(sth))  |=  CR-initiator4\{i:l\}(sth-es(sth))  authenticates  2  messages 
    \mwedge{}  CRX-protocol\{i:l\}(sth-es(sth))  |=  CR-responder6\{i:l\}(sth-es(sth))  authenticates  3  messages  )


Date html generated: 2011_08_17-PM-07_52_10
Last ObjectModification: 2011_06_18-PM-01_46_32

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