https://devconnect.org/_next/static/chunks/8720.742ba074941e3fb1.js

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Error("projective point not allowed");let i=t=>n.eql(t,n.ZERO);return i(e)&&i(r)?b.ZERO:new b(e,r,n.ONE)}get x(){return this.toAffine().x}get y(){return this.toAffine().y}static normalizeZ(t){let e=W(n,t.map(t=>t.pz));return t.map((t,r)=>t.toAffine(e[r])).map(b.fromAffine)}static fromHex(t){let e=b.fromAffine(l(A("pointHex",t)));return e.assertValidity(),e}static fromPrivateKey(t){return b.BASE.multiply(p(t))}static msm(t,e){return function(t,e,r,n){if(!Array.isArray(r))throw Error("array expected");r.forEach((e,r)=>{if(!(e instanceof t))throw Error("invalid point at index "+r)});if(!Array.isArray(n))throw Error("array of scalars expected");n.forEach((t,r)=>{if(!e.isValid(t))throw Error("invalid scalar at index "+r)});let i=r.length,o=n.length;if(i!==o)throw Error("arrays of points and scalars must have equal length");let l=t.ZERO,f=function(t){let e;for(e=0;t>a;t>>=u,e+=1);return e}(BigInt(i)),s=1;f>12?s=f-3:f>4?s=f-2:f>0&&(s=2);let 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g=n.add(g,g),u=n.mul(o,f),u=n.add(u,u),s=n.mul(t,u),a=n.mul(i,c),a=n.add(s,a),s=n.sub(h,a),a=n.add(h,a),a=n.mul(s,a),s=n.mul(g,s),u=n.mul(i,u),c=n.mul(t,c),g=n.sub(d,c),g=n.mul(t,g),g=n.add(g,u),u=n.add(d,d),d=n.add(u,d),d=n.add(d,c),d=n.mul(d,g),a=n.add(a,d),c=n.mul(l,f),c=n.add(c,c),d=n.mul(c,g),s=n.sub(s,d),u=n.mul(c,h),u=n.add(u,u),new b(s,a,u=n.add(u,u))}add(t){y(t);let{px:e,py:i,pz:o}=this,{px:l,py:f,pz:s}=t,a=n.ZERO,u=n.ZERO,d=n.ZERO,h=r.a,c=n.mul(r.b,tp),g=n.mul(e,l),p=n.mul(i,f),m=n.mul(o,s),w=n.add(e,i),E=n.add(l,f);w=n.mul(w,E),E=n.add(g,p),w=n.sub(w,E),E=n.add(e,o);let v=n.add(l,s);return E=n.mul(E,v),v=n.add(g,m),E=n.sub(E,v),v=n.add(i,o),a=n.add(f,s),v=n.mul(v,a),a=n.add(p,m),v=n.sub(v,a),d=n.mul(h,E),a=n.mul(c,m),d=n.add(a,d),a=n.sub(p,d),d=n.add(p,d),u=n.mul(a,d),p=n.add(g,g),p=n.add(p,g),m=n.mul(h,m),E=n.mul(c,E),p=n.add(p,m),m=n.sub(g,m),m=n.mul(h,m),E=n.add(E,m),g=n.mul(p,E),u=n.add(u,g),g=n.mul(v,E),a=n.mul(w,a),a=n.sub(a,g),g=n.mul(w,p),d=n.mul(v,d),new b(a,u,d=n.add(d,g))}subtract(t){return this.add(t.negate())}is0(){return this.equals(b.ZERO)}wNAF(t){return S.wNAFCached(this,t,b.normalizeZ)}multiplyUnsafe(t){let{endo:e,n:i}=r;q("scalar",t,tc,i);let o=b.ZERO;if(t===tc)return o;if(this.is0()||t===tg)return this;if(!e||S.hasPrecomputes(this))return S.wNAFCachedUnsafe(this,t,b.normalizeZ);let{k1neg:l,k1:f,k2neg:s,k2:a}=e.splitScalar(t),u=o,d=o,h=this;for(;f>tc||a>tc;)f&tg&&(u=u.add(h)),a&tg&&(d=d.add(h)),h=h.double(),f>>=tg,a>>=tg;return l&&(u=u.negate()),s&&(d=d.negate()),d=new b(n.mul(d.px,e.beta),d.py,d.pz),u.add(d)}multiply(t){let e,i,{endo:o,n:l}=r;if(q("scalar",t,tg,l),o){let{k1neg:r,k1:l,k2neg:f,k2:s}=o.splitScalar(t),{p:a,f:u}=this.wNAF(l),{p:d,f:h}=this.wNAF(s);a=S.constTimeNegate(r,a),d=S.constTimeNegate(f,d),d=new b(n.mul(d.px,o.beta),d.py,d.pz),e=a.add(d),i=u.add(h)}else{let{p:r,f:n}=this.wNAF(t);e=r,i=n}return b.normalizeZ([e,i])[0]}multiplyAndAddUnsafe(t,e,r){let n=b.BASE,i=(t,e)=>e!==tc&&e!==tg&&t.equals(n)?t.multiply(e):t.multiplyUnsafe(e),o=i(this,e).add(i(t,r));return o.is0()?void 0:o}toAffine(t){return m(this,t)}isTorsionFree(){let{h:t,isTorsionFree:e}=r;if(t===tg)return!0;if(e)return e(b,this);throw Error("isTorsionFree() has not been declared for the elliptic curve")}clearCofactor(){let{h:t,clearCofactor:e}=r;return t===tg?this:e?e(b,this):this.multiplyUnsafe(r.h)}toRawBytes(t=!0){return c("isCompressed",t),this.assertValidity(),o(b,this,t)}toHex(t=!0){return c("isCompressed",t),w(this.toRawBytes(t))}}b.BASE=new b(r.Gx,r.Gy,n.ONE),b.ZERO=new b(n.ZERO,n.ONE,n.ZERO);let{endo:B,nBitLength:x}=r,S=(e=B?Math.ceil(x/2):x,{constTimeNegate:tr,hasPrecomputes:t=>1!==ts(t),unsafeLadder(t,e,r=b.ZERO){let n=t;for(;e>tt;)e&te&&(r=r.add(n)),n=n.double(),e>>=te;return r},precomputeWindow(t,r){let{windows:n,windowSize:i}=ti(r,e),o=[],l=t,f=l;for(let t=0;t<n;t++){f=l,o.push(f);for(let t=1;t<i;t++)f=f.add(l),o.push(f);l=f.double()}return o},wNAF(t,r,n){let i=b.ZERO,o=b.BASE,l=ti(t,e);for(let t=0;t<l.windows;t++){let{nextN:e,offset:f,isZero:s,isNeg:a,isNegF:u,offsetF:d}=to(n,t,l);n=e,s?o=o.add(tr(u,r[d])):i=i.add(tr(a,r[f]))}return{p:i,f:o}},wNAFUnsafe(t,r,n,i=b.ZERO){let o=ti(t,e);for(let t=0;t<o.windows&&n!==tt;t++){let{nextN:e,offset:l,isZero:f,isNeg:s}=to(n,t,o);if(n=e,!f){let t=r[l];i=i.add(s?t.negate():t)}}return i},getPrecomputes(t,e,r){let n=tl.get(e);return n||(n=this.precomputeWindow(e,t),1!==t&&tl.set(e,r(n))),n},wNAFCached(t,e,r){let n=ts(t);return this.wNAF(n,this.getPrecomputes(n,t,r),e)},wNAFCachedUnsafe(t,e,r,n){let i=ts(t);return 1===i?this.unsafeLadder(t,e,n):this.wNAFUnsafe(i,this.getPrecomputes(i,t,r),e,n)},setWindowSize(t,r){tn(r,e),tf.set(t,r),tl.delete(t)}});return{CURVE:r,ProjectivePoint:b,normPrivateKeyToScalar:p,weierstrassEquation:f,isWithinCurveOrder:function(t){return R(t,tg,r.n)}}}({...r,toBytes(t,e,r){let i=e.toAffine(),o=n.toBytes(i.x);return(c("isCompressed",r),r)?I(Uint8Array.from([e.hasEvenY()?2:3]),o):I(Uint8Array.from([4]),o,n.toBytes(i.y))},fromBytes(t){let e=t.length,r=t[0],i=t.subarray(1);if(e===f&&(2===r||3===r)){let t,e=v(i);if(!R(e,tg,n.ORDER))throw Error("Point is not on curve");let o=y(e);try{t=n.sqrt(o)}catch(t){throw Error("Point is not on curve"+(t instanceof Error?": "+t.message:""))}return(1&r)==1!=((t&tg)===tg)&&(t=n.neg(t)),{x:e,y:t}}if(e===s&&4===r)return{x:n.fromBytes(i.subarray(0,n.BYTES)),y:n.fromBytes(i.subarray(n.BYTES,2*n.BYTES))};throw Error("invalid Point, expected length of "+f+", or uncompressed "+s+", got "+e)}}),E=(t,e,r)=>v(t.slice(e,r));class O{constructor(t,e,r){q("r",t,tg,i),q("s",e,tg,i),this.r=t,this.s=e,null!=r&&(this.recovery=r),Object.freeze(this)}static fromCompact(t){return new O(E(t=A("compactSignature",t,2*o),0,o),E(t,o,2*o))}static fromDER(t){let{r:e,s:r}=th.toSig(A("DER",t));return new O(e,r)}assertValidity(){}addRecoveryBit(t){return new O(this.r,this.s,t)}recoverPublicKey(t){let{r:e,s:o,recovery:l}=this,f=F(A("msgHash",t));if(null==l||![0,1,2,3].includes(l))throw Error("recovery id invalid");let s=2===l||3===l?e+r.n:e;if(s>=n.ORDER)throw Error("recovery id 2 or 3 invalid");let a=(1&l)==0?"02":"03",u=g.fromHex(a+w(x(s,n.BYTES))),d=D(s,i),c=h(-f*d),p=h(o*d),y=g.BASE.multiplyAndAddUnsafe(u,c,p);if(!y)throw Error("point at infinify");return y.assertValidity(),y}hasHighS(){return this.s>i>>tg}normalizeS(){return this.hasHighS()?new O(this.r,h(-this.s),this.recovery):this}toDERRawBytes(){return b(this.toDERHex())}toDERHex(){return th.hexFromSig(this)}toCompactRawBytes(){return b(this.toCompactHex())}toCompactHex(){return w(x(this.r,o))+w(x(this.s,o))}}function z(t){if("bigint"==typeof t)return!1;if(t instanceof g)return!0;let e=A("key",t).length,i=n.BYTES,l=i+1;if(!r.allowedPrivateKeyLengths&&o!==l)return e===l||e===2*i+1}let Z=r.bits2int||function(t){if(t.length>8192)throw Error("input is too large");let e=v(t),r=8*t.length-l;return r>0?e>>BigInt(r):e},F=r.bits2int_modN||function(t){return h(Z(t))},L=N(l);function k(t){return q("num < 2^"+l,t,tc,L),x(t,o)}let T={lowS:r.lowS,prehash:!1},V={lowS:r.lowS,prehash:!1};return g.BASE._setWindowSize(8),{CURVE:r,getPublicKey:function(t,e=!0){return g.fromPrivateKey(t).toRawBytes(e)},getSharedSecret:function(t,e,r=!0){if(!0===z(t))throw Error("first arg must be private key");if(!1===z(e))throw Error("second arg must be public key");return g.fromHex(e).multiply(p(t)).toRawBytes(r)},sign:function(t,e,o=T){let{seed:l,k2sig:f}=function(t,e,o=T){if(["recovered","canonical"].some(t=>t in o))throw Error("sign() legacy options not supported");let{hash:l,randomBytes:f}=r,{lowS:s,prehash:a,extraEntropy:u}=o;null==s&&(s=!0),t=A("msgHash",t),tu(o),a&&(t=A("prehashed msgHash",l(t)));let d=F(t),c=p(e),y=[k(c),k(d)];if(null!=u&&!1!==u){let t=!0===u?f(n.BYTES):u;y.push(A("extraEntropy",t))}return{seed:I(...y),k2sig:function(t){var e;let r=Z(t);if(!m(r))return;let n=D(r,i),o=g.BASE.multiply(r).toAffine(),l=h(o.x);if(l===tc)return;let f=h(n*h(d+l*c));if(f===tc)return;let a=2*(o.x!==l)|Number(o.y&tg),u=f;return s&&f>i>>tg&&(u=(e=f)>i>>tg?h(-e):e,a^=1),new O(l,u,a)}}}(t,e,o);return(function(t,e,r){if("number"!=typeof t||t<2)throw Error("hashLen must be a number");if("number"!=typeof e||e<2)throw Error("qByteLen must be a number");if("function"!=typeof r)throw Error("hmacFn must be a function");let n=H(t),i=H(t),o=0,l=()=>{n.fill(1),i.fill(0),o=0},f=(...t)=>r(i,n,...t),s=(t=H(0))=>{let e;if(i=f((e=[0],Uint8Array.from(e)),t),n=f(),0!==t.length){let e;i=f((e=[1],Uint8Array.from(e)),t),n=f()}},a=()=>{if(o++>=1e3)throw Error("drbg: tried 1000 values");let t=0,r=[];for(;t<e;){let e=(n=f()).slice();r.push(e),t+=n.length}return I(...r)};return(t,e)=>{let r;for(l(),s(t);!(r=e(a()));)s();return l(),r}})(r.hash.outputLen,r.nByteLength,r.hmac)(l,f)},verify:function(t,e,n,o=V){let l,f;e=A("msgHash",e),n=A("publicKey",n);let{lowS:s,prehash:a,format:u}=o;if(tu(o),"strict"in o)throw Error("options.strict was renamed to lowS");if(void 0!==u&&"compact"!==u&&"der"!==u)throw Error("format must be compact or der");let c="string"==typeof t||d(t),p=!c&&!u&&"object"==typeof t&&null!==t&&"bigint"==typeof t.r&&"bigint"==typeof t.s;if(!c&&!p)throw Error("invalid signature, expected Uint8Array, hex string or Signature instance");try{if(p&&(f=new O(t.r,t.s)),c){try{"compact"!==u&&(f=O.fromDER(t))}catch(t){if(!(t instanceof th.Err))throw t}f||"der"===u||(f=O.fromCompact(t))}l=g.fromHex(n)}catch(t){return!1}if(!f||s&&f.hasHighS())return!1;a&&(e=r.hash(e));let{r:y,s:m}=f,w=F(e),E=D(m,i),b=h(w*E),v=h(y*E),B=g.BASE.multiplyAndAddUnsafe(l,b,v)?.toAffine();return!!B&&h(B.x)===y},ProjectivePoint:g,Signature:O,utils:{isValidPrivateKey(t){try{return p(t),!0}catch(t){return!1}},normPrivateKeyToScalar:p,randomPrivateKey:()=>{let t=$(r.n);return function(t,e,r=!1){let n=t.length,i=X(e),o=$(e);if(n<16||n<o||n>1024)throw Error("expected "+o+"-1024 bytes of input, got "+n);let l=_(r?B(t):v(t),e-C)+C;return r?S(l,i):x(l,i)}(r.randomBytes(t),r.n)},precompute:(t=8,e=g.BASE)=>(e._setWindowSize(t),e.multiply(BigInt(3)),e)}}})({...i,...{hash:t,hmac:(e,...r)=>(0,f.w)(t,e,(0,s.Id)(...r)),randomBytes:s.po}}))(o),create:n})}}]);