package octez-libs

  1. Overview
  2. Docs
package octez-libs
Legend:
Page
Library
Module
Module type
Parameter
Class
Class type
Source

Source file rescue.ml

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
module Stubs = struct
  type ctxt

  external allocate_ctxt :
    Bls12_381.Fr.t array array -> Bls12_381.Fr.t array -> int -> int -> ctxt
    = "caml_bls12_381_hash_rescue_allocate_ctxt_stubs"

  external apply_permutation : ctxt -> unit
    = "caml_bls12_381_hash_rescue_apply_permutation_stubs"

  external get_state : Bls12_381.Fr.t array -> ctxt -> unit
    = "caml_bls12_381_hash_rescue_get_state_stubs"

  external get_state_size : ctxt -> int
    = "caml_bls12_381_hash_rescue_get_state_size_stubs"

  external set_state : ctxt -> Bls12_381.Fr.t array -> unit
    = "caml_bls12_381_hash_rescue_set_state_stubs"
end

module Parameters = struct
  type t = {
    linear_layer : Bls12_381.Fr.t array array;
    round_constants : Bls12_381.Fr.t array;
    state_size : int;
    nb_of_rounds : int;
  }

  let state_size_3_mds =
    [|
      [|
        "343";
        "52435875175126190479447740508185965837690552500527637822603658699938581184114";
        "57";
      |];
      [|
        "19551";
        "52435875175126190479447740508185965837690552500527637822603658699938581162113";
        "2850";
      |];
      [|
        "977550";
        "52435875175126190479447740508185965837690552500527637822603658699938580066914";
        "140050";
      |];
    |]
    |> Array.map (Array.map Bls12_381.Fr.of_string)

  let state_size_3_round_constants =
    [|
      "35495817390819093545263349384941809089491580678942832859579453034368810736263";
      "4734865798690304458175502708216292605326887152358688691882538799996069070938";
      "31271008447681288492961289082649653266089021637020407236527451612237705002107";
      "3752272659749554246987316978069954116630957098620898965749354210894049705204";
      "22641555720019163306763445608116202165619173600682976754848212896631953422071";
      "28122533469631806190969995639553619503758826280316271478360761787725211583550";
      "25847917841495375497002109968427099088777388041775300281757084913772616807196";
      "32694606500120353152300866547101238346520817919199364752958292990138213972843";
      "27286327057691837800467727052167328890802672763096896941933952396730026264130";
      "11421505857991327619183254231367489753132565965114463729904675480639756627135";
      "521411871436069789624101480374109564923458769959324381065745329697883697117";
      "23880784307761253829209017376202022699450440759526482483183942457652656506129";
      "32944735989607121897647886317992117157418889561697480633116336030286723761501";
      "23809168654834556097350366212084670162247725165957937623679460641681583816451";
      "3163860194972429483721954648842733164010713297776971497284575674748141326227";
      "4994154821407041837874226315683255286085207059107827489820229821534877668868";
      "50472710115457611398312524300398743989276776324315737822995925423912734574272";
      "251866835357267652745308982111788504159393069098120092619439598668220537943";
      "29306447221479286209562070090539769526225070913770783266162336064629228514551";
      "29283041777181961494713136804131952798141345310627850728919908467956333015832";
      "28656363295645570828788643827370268834132346888229153863515891780361414296486";
      "25038928963239238795570624926346448459425394096652630785926109997438209703232";
      "8137054880809446884023200631931681550641379823710586899296036975467179806266";
      "40023642373942331790709007028495088784452433159634511649021697266107433596568";
      "35762237949937672281308268151392628513069349315494090383109234785560672634670";
      "30999566811631951689259246295471339743428563889981096112711184113782054324157";
      "20279178450660587763205226449293238908131708902882258115414408411285674682667";
      "7251226788353540177691937542431845975737106489341120571030231114808456476646";
      "52125099959305698802726608420202937507908602874086034970293871469588059526157";
      "36947771116325024965590213964896639663487838999452121836698608133540047510904";
      "6731449362796983987468313257604646517406447849071950000589095424962988643919";
      "46799204329731723451752711923834870677752669570495984560450489328024837708708";
      "35089631385082017128756246668734504606091189119241613702809534617529750689438";
      "48404791586561114467519265925614105026432456534013682923179665391057050944501";
      "25910045457085525717925797997640841840596905619632452927132962053945891631463";
      "1002644049329627578859603332717752156946995816186878866098534634466684910592";
      "27000834541453700882360080348023947440783037764820885196153273422481631245741";
      "12589074081116083610034305532223638886927072126291986576471860562392225733147";
      "42427223203410224646468929039478899902048566366856240877703602702087931641888";
      "13041605696900798404650686538893086909353822453068056131548498883864307018762";
      "7724559080250826493557773439911765324995115520951876421071063545832580076523";
      "2608760983816514764568197126437451665283344192910536302819820213681815485600";
      "4325576551800410431474186754039992813847609089390921236861130833620395142916";
      "28244869281227089786402354774575238327642814071062911402571918173773147690382";
      "52254320812514580546932455788288716956214894268551482805284261007871578815161";
      "44449246366481365934850731985584672122835299278127134772360027315881296465188";
      "38769336262079049280674269301353892930067342680672673045972987208159445324024";
      "42379436704506954159182654240696088598260763773619436089417882065405547940000";
      "22632779538473440042293241998410977359589070603696185849507766111228222504955";
      "15890983544445833013318912933113160561188216234423366865567699135890287302776";
      "42613622386509970285531317746282776785466762852259244468998263414951438072346";
      "3349279328650947992104289938299770603841093392045299702204191673899696292828";
      "24960454956681584943062398789550512391287992748093736571644480050215988836698";
      "31771416517485450527236959099354889665790926800645171236881417310335951093156";
      "6723262288337923380317441046361546981088139618189440979848042063784738198448";
      "34890105450847731125549485970715770779411614440863872580331681887247489622411";
      "11578979089604924419672152758230524155578424562011333797269885929442680042317";
      "50413588594256908654341963895371964591208017449187726872226940257366479794931";
      "25342645262500526730472670090219790271213097305995599586909134601382438580057";
      "8823851208157208211075893000112820438603010547555640271936182343488623715695";
      "48715166069588125017688857080421400882110756555551531562607166243928305121118";
      "457928742693316582022794368629361528074764749146022984852066320975235063636";
      "40784591676918140113004512439228960581998583153376036451231191678625605644121";
      "18433242804842005502998987143284711404363511412515282751547329224013759991670";
      "13389179080347763657382998600872902733061029331254291204270991952891409570918";
      "50192764209384080101272306620889875080455867628520281400927714930481563250325";
      "21188812847528225766555643216406799500549004969671500977130541863203997121380";
      "15467310814359095588985846207322319122950649805677111326687390171860927014900";
      "43568129081901200261103456211527409151200730655566657378341556085992472943958";
      "34271132631203889901701300408318058004416254071247236806623005223769350150039";
      "22173004425756666568314241635854763913339665884248599814793658197582222664954";
      "32975563242070450354147568749607182665869459510325615902750312087436132984686";
      "22696762757124796424578806530049133427552572655901519744413916679979764071390";
      "17763704296411643970998432037239004006015355463277677435659459899409343551392";
      "47107020014905029302099526236973268575042805085389783842994685212684421454488";
      "13304672766482627838923613214260444961210749299235217922669168410578113120633";
      "14336471400558675842362782084319960764287611922882892949544609123042059062824";
      "19303757685423427260649409150012846414071844305131989213305575732858057757894";
      "41105909312432760443399922527873622836019389621682258300053074843930035806751";
      "4449965847617470660026263611722341184463318026296894969809166330782012760219";
      "31939993490530073679397065723723444395703645080257573290017499883874398700446";
      "44612014630702294701797504988969181620837907283197659821551486351788471559337";
      "42992712381319065313644044212157260265940162092852802442073735607198967462282";
      "966835047744911231490794763166379188555949592683359886287393788918898119684";
    |]
    |> Array.map Bls12_381.Fr.of_string

  let security_128_state_size_3 =
    {
      nb_of_rounds = 14;
      state_size = 3;
      linear_layer = state_size_3_mds;
      round_constants = state_size_3_round_constants;
    }
end

type parameters = Parameters.t

type ctxt = Stubs.ctxt

let allocate_ctxt parameters =
  let open Parameters in
  if parameters.state_size <> 3 then
    failwith "Only suppporting state size of 3 at the moment" ;
  Stubs.allocate_ctxt
    parameters.linear_layer
    parameters.round_constants
    parameters.nb_of_rounds
    parameters.state_size

let apply_permutation ctxt = Stubs.apply_permutation ctxt

let set_state ctxt state =
  let exp_state_size = Stubs.get_state_size ctxt in
  let state_size = Array.length state in
  if state_size <> exp_state_size then
    failwith
      (Printf.sprintf
         "The given array contains %d elements but the expected state size is \
          %d"
         state_size
         exp_state_size) ;
  Stubs.set_state ctxt state

let get_state_size ctxt = Stubs.get_state_size ctxt

let get_state ctxt =
  let state_size = Stubs.get_state_size ctxt in
  let state = Array.init state_size (fun _ -> Bls12_381.Fr.(copy zero)) in
  Stubs.get_state state ctxt ;
  state
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct