function setupWasm(fileName, nameSpace, setupFct) {
	console.log('setupWasm ' + fileName)
	let mod = {}
	fetch(fileName)
		.then(response => response.arrayBuffer())
		.then(buffer => new Uint8Array(buffer))
		.then(binary => {
			mod['wasmBinary'] = binary
			mod['onRuntimeInitialized'] = function() {
				setupFct(mod, nameSpace)
				console.log('setupWasm end')
			}
			Module(mod)
		})
	return mod
}

const MCLBN_CURVE_FP254BNB = 0
const MCLBN_CURVE_FP382_1 = 1
const MCLBN_CURVE_FP382_2 = 2

const MCLBN_FP_UNIT_SIZE = 6

function define_bls_extra_functions(mod) {
	wrap_outputString = function(func, doesReturnString = true) {
		return function(x, ioMode = 0) {
			let maxBufSize = 2048
			let stack = mod.Runtime.stackSave()
			let pos = mod.Runtime.stackAlloc(maxBufSize)
			let n = func(pos, maxBufSize, x, ioMode)
			if (n < 0) {
				throw('err gen_str:' + x)
			}
			if (doesReturnString) {
				let s = ''
				for (let i = 0; i < n; i++) {
					s += String.fromCharCode(mod.HEAP8[pos + i])
				}
				mod.Runtime.stackRestore(stack)
				return s
			} else {
				let a = new Uint8Array(n)
				for (let i = 0; i < n; i++) {
					a[i] = mod.HEAP8[pos + i]
				}
				mod.Runtime.stackRestore(stack)
				return a
			}
		}
	}
	wrap_outputArray = function(func) {
		return wrap_outputString(func, false)
	}
	wrap_input0 = function(func, returnValue = false) {
		return function(buf, ioMode = 0) {
			let stack = mod.Runtime.stackSave()
			let pos = mod.Runtime.stackAlloc(buf.length)
			if (typeof(buf) == "string") {
				for (let i = 0; i < buf.length; i++) {
					mod.HEAP8[pos + i] = buf.charCodeAt(i)
				}
			} else {
				for (let i = 0; i < buf.length; i++) {
					mod.HEAP8[pos + i] = buf[i]
				}
			}
			let r = func(pos, buf.length, ioMode)
			mod.Runtime.stackRestore(stack)
			if (returnValue) return r
			if (r) throw('err wrap_input0 ' + buf)
		}
	}
	wrap_input1 = function(func, returnValue = false) {
		return function(x1, buf, ioMode = 0) {
			let stack = mod.Runtime.stackSave()
			let pos = mod.Runtime.stackAlloc(buf.length)
			if (typeof(buf) == "string") {
				for (let i = 0; i < buf.length; i++) {
					mod.HEAP8[pos + i] = buf.charCodeAt(i)
				}
			} else {
				for (let i = 0; i < buf.length; i++) {
					mod.HEAP8[pos + i] = buf[i]
				}
			}
			let r = func(x1, pos, buf.length, ioMode)
			mod.Runtime.stackRestore(stack)
			if (returnValue) return r
			if (r) throw('err wrap_input1 ' + buf)
		}
	}
	wrap_input2 = function(func, returnValue = false) {
		return function(x1, x2, buf, ioMode = 0) {
			let stack = mod.Runtime.stackSave()
			let pos = mod.Runtime.stackAlloc(buf.length)
			if (typeof(buf) == "string") {
				for (let i = 0; i < buf.length; i++) {
					mod.HEAP8[pos + i] = buf.charCodeAt(i)
				}
			} else {
				for (let i = 0; i < buf.length; i++) {
					mod.HEAP8[pos + i] = buf[i]
				}
			}
			let r = func(x1, x2, pos, buf.length, ioMode)
			mod.Runtime.stackRestore(stack)
			if (returnValue) return r
			if (r) throw('err wrap_input2 ' + buf)
		}
	}
	wrap_keyShare = function(func, dataSize) {
		return function(x, vec, id) {
			let k = vec.length
			let p = mod._malloc(dataSize * k)
			for (let i = 0; i < k; i++) {
				mod._memcpy(p + i * dataSize, vec[i], dataSize)
			}
			let r = func(x, p, k, id)
			mod._free(p)
			if (r) throw('keyShare ' + k)
		}
	}
	wrap_recover = function(func, dataSize, idDataSize) {
		return function(x, vec, idVec) {
			let n = vec.length
			let p = mod._malloc(dataSize * n)
			let q = mod._malloc(idDataSize * n)
			for (let i = 0; i < n; i++) {
				mod._memcpy(p + i * dataSize, vec[i], dataSize)
				mod._memcpy(q + i * idDataSize, idVec[i], idDataSize)
			}
			let r = func(x, p, q, n)
			mod._free(q)
			mod._free(p)
			if (r) throw('recover ' + n)
		}
	}
	///////////////////////////////////////////////////////////////
	const FR_SIZE = MCLBN_FP_UNIT_SIZE * 8
	const G1_SIZE = FR_SIZE * 3
	const G2_SIZE = FR_SIZE * 3 * 2
	const GT_SIZE = FR_SIZE * 12

	const ID_SIZE = FR_SIZE
	const SECRETKEY_SIZE = FR_SIZE
	const PUBLICKEY_SIZE = G2_SIZE
	const SIGNATURE_SIZE = G1_SIZE

	mclBnFr_malloc = function() {
		return mod._malloc(FR_SIZE)
	}
	mcl_free = function(x) {
		mod._free(x)
	}
	mclBnFr_deserialize = wrap_input1(_mclBnFr_deserialize)
	mclBnFr_setLittleEndian = wrap_input1(_mclBnFr_setLittleEndian)
	mclBnFr_setStr = wrap_input1(_mclBnFr_setStr)
	mclBnFr_getStr = wrap_outputString(_mclBnFr_getStr)
	mclBnFr_setHashOf = wrap_input1(_mclBnFr_setHashOf)

	///////////////////////////////////////////////////////////////
	mclBnG1_malloc = function() {
		return mod._malloc(G1_SIZE)
	}
	mclBnG1_setStr = wrap_input1(_mclBnG1_setStr)
	mclBnG1_getStr = wrap_outputString(_mclBnG1_getStr)
	mclBnG1_deserialize = wrap_input1(_mclBnG1_deserialize)
	mclBnG1_serialize = wrap_outputArray(_mclBnG1_serialize)
	mclBnG1_hashAndMapTo = wrap_input1(_mclBnG1_hashAndMapTo)

	///////////////////////////////////////////////////////////////
	mclBnG2_malloc = function() {
		return mod._malloc(G2_SIZE)
	}
	mclBnG2_setStr = wrap_input1(_mclBnG2_setStr)
	mclBnG2_getStr = wrap_outputString(_mclBnG2_getStr)
	mclBnG2_deserialize = wrap_input1(_mclBnG2_deserialize)
	mclBnG2_serialize = wrap_outputArray(_mclBnG2_serialize)
	mclBnG2_hashAndMapTo = wrap_input1(_mclBnG2_hashAndMapTo)

	///////////////////////////////////////////////////////////////
	mclBnGT_malloc = function() {
		return mod._malloc(GT_SIZE)
	}
	mclBnGT_deserialize = wrap_input1(_mclBnGT_deserialize)
	mclBnGT_serialize = wrap_outputArray(_mclBnGT_serialize)
	mclBnGT_setStr = wrap_input1(_mclBnGT_setStr)
	mclBnGT_getStr = wrap_outputString(_mclBnGT_getStr)
	///////////////////////////////////////////////////////////////
	bls_free = mcl_free
	blsId_malloc = mclBnFr_malloc
	blsSecretKey_malloc = mclBnFr_malloc
	blsPublicKey_malloc = mclBnG2_malloc
	blsSignature_malloc = mclBnG1_malloc

	blsInit = function(curveType) {
		return _blsInit(curveType, MCLBN_FP_UNIT_SIZE)
	}

	blsGetCurveOrder = wrap_outputString(_blsGetCurveOrder)
	blsGetFieldOrder = wrap_outputString(_blsGetFieldOrder)

	blsIdSetDecStr = wrap_input1(_blsIdSetDecStr)
	blsIdSetHexStr = wrap_input1(_blsIdSetHexStr)
	blsIdGetDecStr = wrap_outputArray(_blsIdGetDecStr)
	blsIdGetHexStr = wrap_outputArray(_blsIdGetHexStr)

	blsIdSerialize = wrap_outputArray(_blsIdSerialize)
	blsSecretKeySerialize = wrap_outputArray(_blsSecretKeySerialize)
	blsPublicKeySerialize = wrap_outputArray(_blsPublicKeySerialize)
	blsSignatureSerialize = wrap_outputArray(_blsSignatureSerialize)

	blsIdDeserialize = wrap_input1(_blsIdDeserialize)
	blsSecretKeyDeserialize = wrap_input1(_blsSecretKeyDeserialize)
	blsPublicKeyDeserialize = wrap_input1(_blsPublicKeyDeserialize)
	blsSignatureDeserialize = wrap_input1(_blsSignatureDeserialize)

	blsHashToSecretKey = wrap_input1(_blsHashToSecretKey)
	blsSign = wrap_input2(_blsSign)
	blsVerify = wrap_input2(_blsVerify, true)

	blsSecretKeyShare = wrap_keyShare(_blsSecretKeyShare, SECRETKEY_SIZE)
	blsPublicKeyShare = wrap_keyShare(_blsPublicKeyShare, PUBLICKEY_SIZE)

	blsSecretKeyRecover = wrap_recover(_blsSecretKeyRecover, SECRETKEY_SIZE, ID_SIZE)
	blsPublicKeyRecover = wrap_recover(_blsPublicKeyRecover, PUBLICKEY_SIZE, ID_SIZE)
	blsSignatureRecover = wrap_recover(_blsSignatureRecover, SIGNATURE_SIZE, ID_SIZE)
}