This implementation provides an optimized Inner Product Argument (IPA) commitment scheme that only multiplies half of the elements in each vector during each prover round, improving efficiency over naive implementations.
The IPA scheme operates with the following components:
| pragma circom 2.0.0; | |
| include "circomlib/circuits/poseidon.circom"; | |
| include "circomlib/circuits/comparators.circom"; | |
| include "circomlib/circuits/mux1.circom"; | |
| template BinarySelectorHasher() { | |
| signal input i; // Must be 0 or 1 | |
| signal input a; // Input | |
| signal input b; // Sibling |
As describe in section 5 Arithmetic Circuits of Bulletproofs++ paper.
From section 5.3 Full Protocol Description (of 5 Arithmetic circuits),
Protocol: Arithmetic Circuit Protocol
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| // Dynamic allocation in Cairo is done using the `alloc` function, | |
| // which itself is implemented in Cairo using the | |
| // [segments](https://www.cairo-lang.org/docs/how_cairo_works/segments.html) mechanism. | |
| // Thanks to this mechanism, `alloc` allocates an array of an arbitrary size, | |
| // which does not need to be specified in the call. | |
| // | |
| // The function `sqr_array` should compute and return an array | |
| // of the square values of a given array. | |
| // Write the body of `sqr_array` using the given helper function | |
| // `_inner_sqr_array` and check that the program output |
| function asciiToFelt(str) { | |
| if ( ! isNaN( str ) ) return '' + str; | |
| var arr1 = []; | |
| for (var n = 0, l = str.length; n < l; n++) { | |
| const hex = Number(str.charCodeAt(n)).toString(16); | |
| arr1.push(hex); | |
| } | |
| let hex = arr1.join(""); | |
| if ( hex %2 ) hex = '0' + hex; | |
| return BigInt('0x' + hex).toString(); |
| <?php | |
| /** | |
| * Get google reviews | |
| * @return array Google reviews data | |
| */ | |
| function get_google_reviews(){ | |
| // URL to fetch | |
| $google_api = 'https://maps.googleapis.com/maps/api/place/details/json?placeid=<your_place_id>&sensor=true&key=<key>'; |
| // region Setup database client | |
| const { MongoClient } = require( 'mongodb' ); | |
| // Server to connect to | |
| const uri = "mongodb://localhost:27017"; | |
| const dbServer = new MongoClient( uri ); | |
| // endregion Setup database client |
| async function addDataToDB() { | |
| try { | |
| // Destructive operation do only when needed | |
| // await sequelize.sync( {force: true} ); | |
| await Vehicle.create( { | |
| type: 'car', | |
| carPlateNo: 'SA882' | |
| } ); |
| /* Distracting top tabs */ | |
| a[aria-label="Watch"], a[aria-label="Marketplace"], a[aria-label="Groups"], a[aria-label="Gaming"] { | |
| /* Make invisible */ | |
| opacity: 0; | |
| } | |
| /* Distracting top tabs on hover (mouseover) */ | |
| a[aria-label="Watch"]:hover, a[aria-label="Marketplace"]:hover, a[aria-label="Groups"]:hover, a[aria-label="Gaming"]:hover { | |
| /* Slightly visible on hover */ | |
| opacity: .5; |