@walletconnect/utils
Version:
Utilities for WalletConnect Protocol
4 lines • 87.7 kB
JavaScript
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n=t.length%16;n&&e.update(Ts.subarray(n))},Us=new Uint8Array(32);function Ir(e,t,n,r,o){const i=e(t,n,Us),s=Is.create(i);o&&Or(s,o),Or(s,r);const c=new Uint8Array(16),a=ls(c);xr(a,0,BigInt(o?o.length:0),!0),xr(a,8,BigInt(r.length),!0),s.update(c);const u=s.digest();return Pe(i,c),u}const _s=e=>(t,n,r)=>({encrypt(i,s){const c=i.length;s=vr(c+16,s,!1),s.set(i);const a=s.subarray(0,-16);e(t,n,a,a,1);const u=Ir(e,t,n,a,r);return s.set(u,c),Pe(u),s},decrypt(i,s){s=vr(i.length-16,s,!1);const c=i.subarray(0,-16),a=i.subarray(-16),u=Ir(e,t,n,c,r);if(!gs(a,u))throw new Error("invalid tag");return s.set(i.subarray(0,-16)),e(t,n,s,s,1),Pe(u),s}}),Br=ys({blockSize:64,nonceLength:12,tagLength:16},_s(Rs));class Rr extends Pt{constructor(t,n){super(),this.finished=!1,this.destroyed=!1,Ct(t);const r=Ce(n);if(this.iHash=t.create(),typeof this.iHash.update!="function")throw new Error("Expected instance of class which extends 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Pt{constructor(t,n,r,o){super(),this.blockLen=t,this.outputLen=n,this.padOffset=r,this.isLE=o,this.finished=!1,this.length=0,this.pos=0,this.destroyed=!1,this.buffer=new Uint8Array(t),this.view=Lt(this.buffer)}update(t){Ue(this);const{view:n,buffer:r,blockLen:o}=this;t=Ce(t);const i=t.length;for(let s=0;s<i;){const c=Math.min(o-this.pos,i-s);if(c===o){const a=Lt(t);for(;o<=i-s;s+=o)this.process(a,s);continue}r.set(t.subarray(s,s+c),this.pos),this.pos+=c,s+=c,this.pos===o&&(this.process(n,0),this.pos=0)}return this.length+=t.length,this.roundClean(),this}digestInto(t){Ue(this),Fn(t,this),this.finished=!0;const{buffer:n,view:r,blockLen:o,isLE:i}=this;let{pos:s}=this;n[s++]=128,this.buffer.subarray(s).fill(0),this.padOffset>o-s&&(this.process(r,0),s=0);for(let f=s;f<o;f++)n[f]=0;$s(r,o-8,BigInt(this.length*8),i),this.process(r,0);const c=Lt(t),a=this.outputLen;if(a%4)throw new Error("_sha2: outputLen should be aligned to 32bit");const u=a/4,l=this.get();if(u>l.length)throw new Error("_sha2: outputLen bigger than state");for(let f=0;f<u;f++)c.setUint32(4*f,l[f],i)}digest(){const{buffer:t,outputLen:n}=this;this.digestInto(t);const r=t.slice(0,n);return this.destroy(),r}_cloneInto(t){t||(t=new this.constructor),t.set(...this.get());const{blockLen:n,buffer:r,length:o,finished:i,destroyed:s,pos:c}=this;return t.length=o,t.pos=c,t.finished=i,t.destroyed=s,o%n&&t.buffer.set(r),t}}const Ms=new Uint32Array([1116352408,1899447441,3049323471,3921009573,961987163,1508970993,2453635748,2870763221,3624381080,310598401,607225278,1426881987,1925078388,2162078206,2614888103,3248222580,3835390401,4022224774,264347078,604807628,770255983,1249150122,1555081692,1996064986,2554220882,2821834349,2952996808,3210313671,3336571891,3584528711,113926993,338241895,666307205,773529912,1294757372,1396182291,1695183700,1986661051,2177026350,2456956037,2730485921,2820302411,3259730800,3345764771,3516065817,3600352804,4094571909,275423344,430227734,506948616,659060556,883997877,958139571,1322822218,1537002063,1747873779,1955562222,2024104815,2227730452,2361852424,2428436474,2756734187,3204031479,3329325298]),me=new Uint32Array([1779033703,3144134277,1013904242,2773480762,1359893119,2600822924,528734635,1541459225]),we=new Uint32Array(64);class Ds extends Vs{constructor(){super(64,32,8,!1),this.A=me[0]|0,this.B=me[1]|0,this.C=me[2]|0,this.D=me[3]|0,this.E=me[4]|0,this.F=me[5]|0,this.G=me[6]|0,this.H=me[7]|0}get(){const{A:t,B:n,C:r,D:o,E:i,F:s,G:c,H:a}=this;return[t,n,r,o,i,s,c,a]}set(t,n,r,o,i,s,c,a){this.A=t|0,this.B=n|0,this.C=r|0,this.D=o|0,this.E=i|0,this.F=s|0,this.G=c|0,this.H=a|0}process(t,n){for(let f=0;f<16;f++,n+=4)we[f]=t.getUint32(n,!1);for(let f=16;f<64;f++){const h=we[f-15],y=we[f-2],E=ie(h,7)^ie(h,18)^h>>>3,p=ie(y,17)^ie(y,19)^y>>>10;we[f]=p+we[f-7]+E+we[f-16]|0}let{A:r,B:o,C:i,D:s,E:c,F:a,G:u,H:l}=this;for(let f=0;f<64;f++){const h=ie(c,6)^ie(c,11)^ie(c,25),y=l+h+js(c,a,u)+Ms[f]+we[f]|0,p=(ie(r,2)^ie(r,13)^ie(r,22))+ks(r,o,i)|0;l=u,u=a,a=c,c=s+y|0,s=i,i=o,o=r,r=y+p|0}r=r+this.A|0,o=o+this.B|0,i=i+this.C|0,s=s+this.D|0,c=c+this.E|0,a=a+this.F|0,u=u+this.G|0,l=l+this.H|0,this.set(r,o,i,s,c,a,u,l)}roundClean(){we.fill(0)}destroy(){this.set(0,0,0,0,0,0,0,0),this.buffer.fill(0)}}const Xe=Yn(()=>new Ds);/*! noble-curves - MIT 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s=()=>{r.fill(1),o.fill(0),i=0},c=(...f)=>n(o,r,...f),a=(f=Wt())=>{o=c(Cr([0]),f),r=c(),f.length!==0&&(o=c(Cr([1]),f),r=c())},u=()=>{if(i++>=1e3)throw new Error("drbg: tried 1000 values");let f=0;const h=[];for(;f<t;){r=c();const y=r.slice();h.push(y),f+=r.length}return tt(...h)};return(f,h)=>{s(),a(f);let y;for(;!(y=h(u()));)a();return s(),y}}const Gs={bigint:e=>typeof e=="bigint",function:e=>typeof e=="function",boolean:e=>typeof e=="boolean",string:e=>typeof e=="string",stringOrUint8Array:e=>typeof e=="string"||Se(e),isSafeInteger:e=>Number.isSafeInteger(e),array:e=>Array.isArray(e),field:(e,t)=>t.Fp.isValid(e),hash:e=>typeof e=="function"&&Number.isSafeInteger(e.outputLen)};function De(e,t,n={}){const r=(o,i,s)=>{const c=Gs[i];if(typeof c!="function")throw new Error("invalid validator function");const a=e[o];if(!(s&&a===void 0)&&!c(a,e))throw new Error("param "+String(o)+" is invalid. 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e?n:t}function Hr(e,t){if(!Number.isSafeInteger(e)||e<=0||e>t)throw new Error("invalid window size, expected [1.."+t+"], got W="+e)}function tn(e,t){Hr(e,t);const n=Math.ceil(t/e)+1,r=2**(e-1);return{windows:n,windowSize:r}}function sc(e,t){if(!Array.isArray(e))throw new Error("array expected");e.forEach((n,r)=>{if(!(n instanceof t))throw new Error("invalid point at index "+r)})}function cc(e,t){if(!Array.isArray(e))throw new Error("array of scalars expected");e.forEach((n,r)=>{if(!t.isValid(n))throw new Error("invalid scalar at index "+r)})}const nn=new WeakMap,Fr=new WeakMap;function rn(e){return Fr.get(e)||1}function ac(e,t){return{constTimeNegate:en,hasPrecomputes(n){return rn(n)!==1},unsafeLadder(n,r,o=e.ZERO){let i=n;for(;r>qr;)r&bt&&(o=o.add(i)),i=i.double(),r>>=bt;return o},precomputeWindow(n,r){const{windows:o,windowSize:i}=tn(r,t),s=[];let c=n,a=c;for(let u=0;u<o;u++){a=c,s.push(a);for(let l=1;l<i;l++)a=a.add(c),s.push(a);c=a.double()}return s},wNAF(n,r,o){const{windows:i,windowSize:s}=tn(n,t);let c=e.ZERO,a=e.BASE;const u=BigInt(2**n-1),l=2**n,f=BigInt(n);for(let h=0;h<i;h++){const y=h*s;let E=Number(o&u);o>>=f,E>s&&(E-=l,o+=bt);const p=y,d=y+Math.abs(E)-1,v=h%2!==0,m=E<0;E===0?a=a.add(en(v,r[p])):c=c.add(en(m,r[d]))}return{p:c,f:a}},wNAFUnsafe(n,r,o,i=e.ZERO){const{windows:s,windowSize:c}=tn(n,t),a=BigInt(2**n-1),u=2**n,l=BigInt(n);for(let f=0;f<s;f++){const h=f*c;if(o===qr)break;let y=Number(o&a);if(o>>=l,y>c&&(y-=u,o+=bt),y===0)continue;let E=r[h+Math.abs(y)-1];y<0&&(E=E.negate()),i=i.add(E)}return i},getPrecomputes(n,r,o){let i=nn.get(r);return i||(i=this.precomputeWindow(r,n),n!==1&&nn.set(r,o(i))),i},wNAFCached(n,r,o){const i=rn(n);return this.wNAF(i,this.getPrecomputes(i,n,o),r)},wNAFCachedUnsafe(n,r,o,i){const s=rn(n);return s===1?this.unsafeLadder(n,r,i):this.wNAFUnsafe(s,this.getPrecomputes(s,n,o),r,i)},setWindowSize(n,r){Hr(r,t),Fr.set(n,r),nn.delete(n)}}}function uc(e,t,n,r){if(sc(n,e),cc(r,t),n.length!==r.length)throw new Error("arrays of points and scalars must have equal length");const o=e.ZERO,i=_r(BigInt(n.length)),s=i>12?i-3:i>4?i-2:i?2:1,c=(1<<s)-1,a=new Array(c+1).fill(o),u=Math.floor((t.BITS-1)/s)*s;let l=o;for(let f=u;f>=0;f-=s){a.fill(o);for(let y=0;y<r.length;y++){const E=r[y],p=Number(E>>BigInt(f)&BigInt(c));a[p]=a[p].add(n[y])}let h=o;for(let y=a.length-1,E=o;y>0;y--)E=E.add(a[y]),h=h.add(E);if(l=l.add(h),f!==0)for(let y=0;y<s;y++)l=l.double()}return l}function Kr(e){return nc(e.Fp),De(e,{n:"bigint",h:"bigint",Gx:"field",Gy:"field"},{nBitLength:"isSafeInteger",nByteLength:"isSafeInteger"}),Object.freeze({...kr(e.n,e.nBitLength),...e,p:e.Fp.ORDER})}BigInt(0),BigInt(1),BigInt(2),BigInt(8);const qe=BigInt(0),on=BigInt(1);function fc(e){return De(e,{a:"bigint"},{montgomeryBits:"isSafeInteger",nByteLength:"isSafeInteger",adjustScalarBytes:"function",domain:"function",powPminus2:"function",Gu:"bigint"}),Object.freeze({...e})}function lc(e){const t=fc(e),{P:n}=t,r=m=>X(m,n),o=t.montgomeryBits,i=Math.ceil(o/8),s=t.nByteLength,c=t.adjustScalarBytes||(m=>m),a=t.powPminus2||(m=>jr(m,n-BigInt(2),n));function u(m,A,B){const C=r(m*(A-B));return A=r(A-C),B=r(B+C),[A,B]}const l=(t.a-BigInt(2))/BigInt(4);function f(m,A){ue("u",m,qe,n),ue("scalar",A,qe,n);const B=A,C=m;let O=on,N=qe,T=m,S=on,L=qe,R;for(let P=BigInt(o-1);P>=qe;P--){const g=B>>P&on;L^=g,R=u(L,O,T),O=R[0],T=R[1],R=u(L,N,S),N=R[0],S=R[1],L=g;const w=O+N,b=r(w*w),I=O-N,U=r(I*I),x=b-U,$=T+S,j=T-S,k=r(j*w),D=r($*I),q=k+D,Z=k-D;T=r(q*q),S=r(C*r(Z*Z)),O=r(b*U),N=r(x*(b+r(l*x)))}R=u(L,O,T),O=R[0],T=R[1],R=u(L,N,S),N=R[0],S=R[1];const _=a(N);return r(O*_)}function h(m){return mt(r(m),i)}function y(m){const A=te("u coordinate",m,i);return s===32&&(A[31]&=127),et(A)}function E(m){const A=te("scalar",m),B=A.length;if(B!==i&&B!==s){l