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550 lines
17 KiB
550 lines
17 KiB
(function(return_she) {
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if (typeof exports === 'object') {
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module.exports = return_she()
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} else {
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window.she = return_she()
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}
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})(function() {
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const crypto = window.crypto || window.msCrypto
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const MCLBN_CURVE_FP254BNB = 0
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const MCLBN_FP_UNIT_SIZE = 4
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const MCLBN_FP_SIZE = MCLBN_FP_UNIT_SIZE * 8
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const MCLBN_G1_SIZE = MCLBN_FP_SIZE * 3
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const MCLBN_G2_SIZE = MCLBN_FP_SIZE * 6
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const MCLBN_GT_SIZE = MCLBN_FP_SIZE * 12
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const SHE_SECRETKEY_SIZE = MCLBN_FP_SIZE * 2
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const SHE_PUBLICKEY_SIZE = MCLBN_G1_SIZE + MCLBN_G2_SIZE
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const SHE_CIPHERTEXT_G1_SIZE = MCLBN_G1_SIZE * 2
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const SHE_CIPHERTEXT_G2_SIZE = MCLBN_G2_SIZE * 2
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const SHE_CIPHERTEXT_GT_SIZE = MCLBN_GT_SIZE * 4
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let mod = {}
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let she = {}
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she.mod = mod
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const setupWasm = function(fileName, nameSpace, setupFct) {
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console.log('setupWasm ' + fileName)
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fetch(fileName)
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.then(response => response.arrayBuffer())
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.then(buffer => new Uint8Array(buffer))
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.then(binary => {
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mod['wasmBinary'] = binary
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mod['onRuntimeInitialized'] = function() {
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setupFct(mod, nameSpace)
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console.log('setupWasm end')
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}
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Module(mod)
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})
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return mod
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}
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const define_she_extra_functions = function(mod) {
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const ptrToStr = function(pos, n) {
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let s = ''
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for (let i = 0; i < n; i++) {
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s += String.fromCharCode(mod.HEAP8[pos + i])
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}
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return s
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}
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const Uint8ArrayToMem = function(pos, buf) {
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for (let i = 0; i < buf.length; i++) {
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mod.HEAP8[pos + i] = buf[i]
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}
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}
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const AsciiStrToMem = function(pos, s) {
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for (let i = 0; i < s.length; i++) {
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mod.HEAP8[pos + i] = s.charCodeAt(i)
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}
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}
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const wrap_outputString = function(func, doesReturnString = true) {
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return function(x, ioMode = 0) {
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let maxBufSize = 2048
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let stack = mod.Runtime.stackSave()
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let pos = mod.Runtime.stackAlloc(maxBufSize)
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let n = func(pos, maxBufSize, x, ioMode)
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if (n < 0) {
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throw('err gen_str:' + x)
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}
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if (doesReturnString) {
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let s = ptrToStr(pos, n)
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mod.Runtime.stackRestore(stack)
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return s
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} else {
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let a = new Uint8Array(n)
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for (let i = 0; i < n; i++) {
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a[i] = mod.HEAP8[pos + i]
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}
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mod.Runtime.stackRestore(stack)
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return a
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}
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}
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}
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const wrap_outputArray = function(func) {
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return wrap_outputString(func, false)
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}
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const wrap_input0 = function(func, returnValue = false) {
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return function(buf, ioMode = 0) {
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let stack = mod.Runtime.stackSave()
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let pos = mod.Runtime.stackAlloc(buf.length)
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if (typeof(buf) == "string") {
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AsciiStrToMem(pos, buf)
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} else {
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Uint8ArrayToMem(pos, buf)
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}
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let r = func(pos, buf.length, ioMode)
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mod.Runtime.stackRestore(stack)
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if (returnValue) return r
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if (r) throw('err wrap_input0 ' + buf)
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}
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}
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const wrap_input1 = function(func, returnValue = false) {
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return function(x1, buf, ioMode = 0) {
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let stack = mod.Runtime.stackSave()
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let pos = mod.Runtime.stackAlloc(buf.length)
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if (typeof(buf) == "string") {
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AsciiStrToMem(pos, buf)
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} else {
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Uint8ArrayToMem(pos, buf)
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}
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let r = func(x1, pos, buf.length, ioMode)
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mod.Runtime.stackRestore(stack)
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if (returnValue) return r
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if (r) throw('err wrap_input1 ' + buf)
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}
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}
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const wrap_input2 = function(func, returnValue = false) {
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return function(x1, x2, buf, ioMode = 0) {
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let stack = mod.Runtime.stackSave()
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let pos = mod.Runtime.stackAlloc(buf.length)
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if (typeof(buf) == "string") {
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AsciiStrToMem(pos, buf)
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} else {
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Uint8ArrayToMem(pos, buf)
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}
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let r = func(x1, x2, pos, buf.length, ioMode)
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mod.Runtime.stackRestore(stack)
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if (returnValue) return r
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if (r) throw('err wrap_input2 ' + buf)
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}
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}
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const wrap_dec = function(func) {
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return function(sec, c) {
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let stack = mod.Runtime.stackSave()
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let pos = mod.Runtime.stackAlloc(8)
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let r = func(pos, sec, c)
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mod.Runtime.stackRestore(stack)
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if (r != 0) throw('sheDec')
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let v = mod.HEAP32[pos / 4]
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return v
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}
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}
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const copyToUint32Array = function(a, pos) {
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for (let i = 0; i < a.length; i++) {
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a[i] = mod.HEAP32[pos / 4 + i]
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}
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}
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const copyFromUint32Array = function(pos, a) {
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for (let i = 0; i < a.length; i++) {
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mod.HEAP32[pos / 4 + i] = a[i]
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}
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}
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const callSetter = function(func, a, p1, p2) {
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let pos = mod._malloc(a.length * 4)
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func(pos, p1, p2) // p1, p2 may be undefined
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copyToUint32Array(a, pos)
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mod._free(pos)
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}
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const callGetter = function(func, a, p1, p2) {
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let pos = mod._malloc(a.length * 4)
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mod.HEAP32.set(a, pos / 4)
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let s = func(pos, p1, p2)
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mod._free(pos)
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return s
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}
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const callModifier = function(func, a, p1, p2) {
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let pos = mod._malloc(a.length * 4)
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mod.HEAP32.set(a, pos / 4)
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func(pos, p1, p2) // p1, p2 may be undefined
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copyToUint32Array(a, pos)
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mod._free(pos)
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}
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she.toHex = function(a, start, n) {
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let s = ''
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for (let i = 0; i < n; i++) {
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s += ('0' + a[start + i].toString(16)).slice(-2)
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}
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return s
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}
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// Uint8Array to hex string
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she.toHexStr = function(a) {
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return she.toHex(a, 0, a.length)
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}
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// hex string to Uint8Array
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she.fromHexStr = function(s) {
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let n = (s.length + 1) / 2
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let a = new Uint8Array(n)
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for (let i = 0; i < s.length / 2; i++) {
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a[i] = parseInt(s.slice(i * 2, i * 2 + 2), 16)
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}
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if ((s.length & 1) != 0) {
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a[n - 1] = parseInt(s[s.length - 1] + '0', 16)
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}
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return a
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}
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const callEnc = function(func, cstr, pub, m) {
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let c = new cstr()
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let stack = mod.Runtime.stackSave()
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let cPos = mod.Runtime.stackAlloc(c.a_.length * 4)
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let pubPos = mod.Runtime.stackAlloc(pub.length * 4)
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copyFromUint32Array(pubPos, pub);
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func(cPos, pubPos, m)
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copyToUint32Array(c.a_, cPos)
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mod.Runtime.stackRestore(stack)
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return c
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}
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// return func(x, y)
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const callAddSub = function(func, cstr, x, y) {
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let z = new cstr()
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let stack = mod.Runtime.stackSave()
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let xPos = mod.Runtime.stackAlloc(x.length * 4)
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let yPos = mod.Runtime.stackAlloc(y.length * 4)
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let zPos = mod.Runtime.stackAlloc(z.a_.length * 4)
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copyFromUint32Array(xPos, x);
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copyFromUint32Array(yPos, y);
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func(zPos, xPos, yPos)
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copyToUint32Array(z.a_, zPos)
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mod.Runtime.stackRestore(stack)
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return z
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}
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// return func(x, y)
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const callMulInt = function(func, cstr, x, y) {
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let z = new cstr()
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let stack = mod.Runtime.stackSave()
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let xPos = mod.Runtime.stackAlloc(x.length * 4)
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let zPos = mod.Runtime.stackAlloc(z.a_.length * 4)
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copyFromUint32Array(xPos, x);
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func(zPos, xPos, y)
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copyToUint32Array(z.a_, zPos)
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mod.Runtime.stackRestore(stack)
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return z
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}
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// return func(c)
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const callDec = function(func, sec, c) {
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let stack = mod.Runtime.stackSave()
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let secPos = mod.Runtime.stackAlloc(sec.length * 4)
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let cPos = mod.Runtime.stackAlloc(c.length * 4)
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copyFromUint32Array(secPos, sec);
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copyFromUint32Array(cPos, c);
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let r = func(secPos, cPos)
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mod.Runtime.stackRestore(stack)
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return r
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}
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// reRand(c)
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const callReRand = function(func, c, pub) {
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let stack = mod.Runtime.stackSave()
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let cPos = mod.Runtime.stackAlloc(c.length * 4)
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let pubPos = mod.Runtime.stackAlloc(pub.length * 4)
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copyFromUint32Array(cPos, c);
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copyFromUint32Array(pubPos, pub);
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let r = func(cPos, pubPos)
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copyToUint32Array(c, cPos)
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mod.Runtime.stackRestore(stack)
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if (r) throw('callReRand err')
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}
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she_free = function(p) {
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mod._free(p)
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}
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sheSecretKey_malloc = function() {
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return mod._malloc(SHE_SECRETKEY_SIZE)
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}
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shePublicKey_malloc = function() {
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return mod._malloc(SHE_PUBLICKEY_SIZE)
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}
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sheCipherTextG2_malloc = function() {
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return mod._malloc(SHE_CIPHERTEXT_G2_SIZE)
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}
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sheCipherTextGT_malloc = function() {
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return mod._malloc(SHE_CIPHERTEXT_GT_SIZE)
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}
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sheCipherTextG1_malloc = function() {
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return mod._malloc(SHE_CIPHERTEXT_G1_SIZE)
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}
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sheSecretKeySerialize = wrap_outputArray(_sheSecretKeySerialize)
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sheSecretKeyDeserialize = wrap_input1(_sheSecretKeyDeserialize)
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shePublicKeySerialize = wrap_outputArray(_shePublicKeySerialize)
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shePublicKeyDeserialize = wrap_input1(_shePublicKeyDeserialize)
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sheCipherTextG1Serialize = wrap_outputArray(_sheCipherTextG1Serialize)
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sheCipherTextG1Deserialize = wrap_input1(_sheCipherTextG1Deserialize)
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sheDecG1 = wrap_dec(_sheDecG1)
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sheCipherTextG2Serialize = wrap_outputArray(_sheCipherTextG2Serialize)
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sheCipherTextG2Deserialize = wrap_input1(_sheCipherTextG2Deserialize)
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sheDecG2 = wrap_dec(_sheDecG2)
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sheCipherTextGTSerialize = wrap_outputArray(_sheCipherTextGTSerialize)
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sheCipherTextGTDeserialize = wrap_input1(_sheCipherTextGTDeserialize)
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sheDecGT = wrap_dec(_sheDecGT)
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sheInit = function(curveType = MCLBN_CURVE_FP254BNB) {
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let r = _sheInit(curveType, MCLBN_FP_UNIT_SIZE)
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console.log('sheInit ' + r)
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if (r) throw('sheInit')
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}
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she.SecretKey = function() {
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this.a_ = new Uint32Array(SHE_SECRETKEY_SIZE / 4)
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}
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she.SecretKey.prototype.serialize = function() {
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return callGetter(sheSecretKeySerialize, this.a_)
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}
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she.SecretKey.prototype.deserialize = function(s) {
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callSetter(sheSecretKeyDeserialize, this.a_, s)
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}
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she.SecretKey.prototype.fromHexStr = function(s) {
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this.deserialize(she.fromHexStr(s))
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}
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she.SecretKey.prototype.toHexStr = function() {
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return she.toHexStr(this.serialize())
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}
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she.SecretKey.prototype.dump = function(msg = 'sec ') {
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console.log(msg + this.toHexStr())
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}
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she.getSecretKeyFromHexStr = function(s) {
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r = new she.SecretKey()
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r.fromHexStr(s)
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return r
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}
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she.PublicKey = function() {
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this.a_ = new Uint32Array(SHE_PUBLICKEY_SIZE / 4)
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}
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she.PublicKey.prototype.serialize = function() {
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return callGetter(shePublicKeySerialize, this.a_)
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}
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she.PublicKey.prototype.deserialize = function(s) {
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callSetter(shePublicKeyDeserialize, this.a_, s)
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}
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she.PublicKey.prototype.fromHexStr = function(s) {
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this.deserialize(she.fromHexStr(s))
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}
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she.PublicKey.prototype.toHexStr = function() {
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return she.toHexStr(this.serialize())
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}
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she.PublicKey.prototype.dump = function(msg = 'pub ') {
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console.log(msg + this.toHexStr())
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}
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she.getPublicKeyFromHexStr = function(s) {
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r = new she.PublicKey()
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r.fromHexStr(s)
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return r
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}
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she.CipherTextG1 = function() {
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this.a_ = new Uint32Array(SHE_CIPHERTEXT_G1_SIZE / 4)
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}
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she.CipherTextG1.prototype.serialize = function() {
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return callGetter(sheCipherTextG1Serialize, this.a_)
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}
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she.CipherTextG1.prototype.deserialize = function(s) {
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callSetter(sheCipherTextG1Deserialize, this.a_, s)
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}
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she.CipherTextG1.prototype.fromHexStr = function(s) {
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this.deserialize(she.fromHexStr(s))
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}
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she.CipherTextG1.prototype.toHexStr = function() {
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return she.toHexStr(this.serialize())
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}
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she.CipherTextG1.prototype.dump = function(msg = 'ct1 ') {
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console.log(msg + this.toHexStr())
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}
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she.getCipherTextG1FromHexStr = function(s) {
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r = new she.CipherTextG1()
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r.fromHexStr(s)
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return r
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}
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she.CipherTextG2 = function() {
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this.a_ = new Uint32Array(SHE_CIPHERTEXT_G2_SIZE / 4)
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}
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she.CipherTextG2.prototype.serialize = function() {
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return callGetter(sheCipherTextG2Serialize, this.a_)
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}
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she.CipherTextG2.prototype.deserialize = function(s) {
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callSetter(sheCipherTextG2Deserialize, this.a_, s)
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}
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she.CipherTextG2.prototype.fromHexStr = function(s) {
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this.deserialize(she.fromHexStr(s))
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}
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she.CipherTextG2.prototype.toHexStr = function() {
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return she.toHexStr(this.serialize())
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}
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she.CipherTextG2.prototype.dump = function(msg = 'ct2 ') {
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console.log(msg + this.toHexStr())
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}
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she.getCipherTextG2FromHexStr = function(s) {
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r = new she.CipherTextG2()
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r.fromHexStr(s)
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return r
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}
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she.CipherTextGT = function() {
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this.a_ = new Uint32Array(SHE_CIPHERTEXT_GT_SIZE / 4)
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}
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she.CipherTextGT.prototype.serialize = function() {
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return callGetter(sheCipherTextGTSerialize, this.a_)
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}
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she.CipherTextGT.prototype.deserialize = function(s) {
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callSetter(sheCipherTextGTDeserialize, this.a_, s)
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}
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she.CipherTextGT.prototype.fromHexStr = function(s) {
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this.deserialize(she.fromHexStr(s))
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}
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she.CipherTextGT.prototype.toHexStr = function() {
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return she.toHexStr(this.serialize())
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}
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she.CipherTextGT.prototype.dump = function(msg = 'ctt ') {
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console.log(msg + this.toHexStr())
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}
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she.getCipherTextGTFromHexStr = function(s) {
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r = new she.CipherTextGT()
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r.fromHexStr(s)
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return r
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}
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she.SecretKey.prototype.setByCSPRNG = function() {
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let stack = mod.Runtime.stackSave()
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let secPos = mod.Runtime.stackAlloc(this.a_.length * 4)
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sheSecretKeySetByCSPRNG(secPos)
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copyToUint32Array(this.a_, secPos)
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mod.Runtime.stackRestore(stack)
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}
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she.SecretKey.prototype.getPublicKey = function() {
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let pub = new she.PublicKey()
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let stack = mod.Runtime.stackSave()
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let secPos = mod.Runtime.stackAlloc(this.a_.length * 4)
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let pubPos = mod.Runtime.stackAlloc(pub.a_.length * 4)
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copyFromUint32Array(secPos, this.a_)
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sheGetPublicKey(pubPos, secPos)
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copyToUint32Array(pub.a_, pubPos)
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mod.Runtime.stackRestore(stack)
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return pub
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}
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she.PublicKey.prototype.encG1 = function(m) {
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return callEnc(sheEnc32G1, she.CipherTextG1, this.a_, m)
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}
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she.PublicKey.prototype.encG2 = function(m) {
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return callEnc(sheEnc32G2, she.CipherTextG2, this.a_, m)
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}
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she.PublicKey.prototype.encGT = function(m) {
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return callEnc(sheEnc32GT, she.CipherTextGT, this.a_, m)
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}
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// return x + y
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she.add = function(x, y) {
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if (x.a_.length != y.a_.length) throw('she.add:bad type')
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let add = null
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let cstr = null
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if (she.CipherTextG1.prototype.isPrototypeOf(x)) {
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add = sheAddG1
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cstr = she.CipherTextG1
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} else if (she.CipherTextG2.prototype.isPrototypeOf(x)) {
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add = sheAddG2
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cstr = she.CipherTextG2
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} else if (she.CipherTextGT.prototype.isPrototypeOf(x)) {
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add = sheAddGT
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cstr = she.CipherTextGT
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} else {
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throw('she.add:not supported')
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}
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return callAddSub(add, cstr, x.a_, y.a_)
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}
|
|
// return x - y
|
|
she.sub = function(x, y) {
|
|
if (x.a_.length != y.a_.length) throw('she.sub:bad type')
|
|
let sub = null
|
|
let cstr = null
|
|
if (she.CipherTextG1.prototype.isPrototypeOf(x)) {
|
|
sub = sheSubG1
|
|
cstr = she.CipherTextG1
|
|
} else if (she.CipherTextG2.prototype.isPrototypeOf(x)) {
|
|
sub = sheSubG2
|
|
cstr = she.CipherTextG2
|
|
} else if (she.CipherTextGT.prototype.isPrototypeOf(x)) {
|
|
sub = sheSubGT
|
|
cstr = she.CipherTextGT
|
|
} else {
|
|
throw('she.sub:not supported')
|
|
}
|
|
return callAddSub(sub, cstr, x.a_, y.a_)
|
|
}
|
|
// return x * (int)y
|
|
she.mulInt = function(x, y) {
|
|
let mulInt = null
|
|
let cstr = null
|
|
if (she.CipherTextG1.prototype.isPrototypeOf(x)) {
|
|
mulInt = sheMul32G1
|
|
cstr = she.CipherTextG1
|
|
} else if (she.CipherTextG2.prototype.isPrototypeOf(x)) {
|
|
mulInt = sheMul32G2
|
|
cstr = she.CipherTextG2
|
|
} else if (she.CipherTextGT.prototype.isPrototypeOf(x)) {
|
|
mulInt = sheMul32GT
|
|
cstr = she.CipherTextGT
|
|
} else {
|
|
throw('she.mulInt:not supported')
|
|
}
|
|
return callMulInt(mulInt, cstr, x.a_, y)
|
|
}
|
|
// return (G1)x * (G2)y
|
|
she.mul = function(x, y) {
|
|
if (!she.CipherTextG1.prototype.isPrototypeOf(x)
|
|
|| !she.CipherTextG2.prototype.isPrototypeOf(y)) throw('she.mul:bad type')
|
|
let z = new she.CipherTextGT()
|
|
let stack = mod.Runtime.stackSave()
|
|
let xPos = mod.Runtime.stackAlloc(x.a_.length * 4)
|
|
let yPos = mod.Runtime.stackAlloc(y.a_.length * 4)
|
|
let zPos = mod.Runtime.stackAlloc(z.a_.length * 4)
|
|
copyFromUint32Array(xPos, x.a_)
|
|
copyFromUint32Array(yPos, y.a_)
|
|
sheMul(zPos, xPos, yPos)
|
|
copyToUint32Array(z.a_, zPos)
|
|
mod.Runtime.stackRestore(stack)
|
|
return z
|
|
}
|
|
// return dec(c)
|
|
she.SecretKey.prototype.dec = function(c) {
|
|
let dec = null
|
|
if (she.CipherTextG1.prototype.isPrototypeOf(c)) {
|
|
dec = sheDecG1
|
|
} else if (she.CipherTextG2.prototype.isPrototypeOf(c)) {
|
|
dec = sheDecG2
|
|
} else if (she.CipherTextGT.prototype.isPrototypeOf(c)) {
|
|
dec = sheDecGT
|
|
} else {
|
|
throw('she.SecretKey.dec:not supported')
|
|
}
|
|
return callDec(dec, this.a_, c.a_)
|
|
}
|
|
// rerand(c)
|
|
she.PublicKey.prototype.reRand = function(c) {
|
|
let reRand = null
|
|
if (she.CipherTextG1.prototype.isPrototypeOf(c)) {
|
|
reRand = sheReRandG1
|
|
} else if (she.CipherTextG2.prototype.isPrototypeOf(c)) {
|
|
reRand = sheReRandG2
|
|
} else if (she.CipherTextGT.prototype.isPrototypeOf(c)) {
|
|
reRand = sheReRandGT
|
|
} else {
|
|
throw('she.PublicKey.reRand:not supported')
|
|
}
|
|
return callReRand(reRand, c.a_, this.a_)
|
|
}
|
|
}
|
|
|
|
she.init = function(range = 1024, tryNum = 1024, callback = null) {
|
|
setupWasm('mclshe.wasm', null, function(_mod, ns) {
|
|
mod = _mod
|
|
define_exported_she(mod)
|
|
define_she_extra_functions(mod)
|
|
sheInit()
|
|
console.log('initializing sheSetRangeForDLP')
|
|
let r = sheSetRangeForDLP(range, tryNum)
|
|
console.log('finished ' + r)
|
|
if (callback) callback()
|
|
})
|
|
}
|
|
return she
|
|
})
|
|
|