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@surec/oracle

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Typescript SDK for the Sure Oracle to be used to bring off-chain data on-chain

github.com/Sure-Protocol/sure-v1

Sure-Protocol/sure-v1

12 lines • 639 kB
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o;for(o=0;o<n&&!(o+r>=e.length||o>=t.length);++o)e[o+r]=t[o];return o}function W(t,e){return t instanceof e||null!=t&&null!=t.constructor&&null!=t.constructor.name&&t.constructor.name===e.name}function G(t){return t!=t}const Y=function(){const t="0123456789abcdef",e=new Array(256);for(let r=0;r<16;++r){const n=16*r;for(let o=0;o<16;++o)e[n+o]=t[r]+t[o]}return e}();function Z(t){return"undefined"==typeof BigInt?X:t}function X(){throw new Error("BigInt not supported")}}(buffer);const assert$3={number:number$1,bool:bool$1,bytes:bytes,hash:hash,exists:exists,output:output},createView=t=>new DataView(t.buffer,t.byteOffset,t.byteLength),rotr=(t,e)=>t<<32-e|t>>>e,isLE=68===new Uint8Array(new Uint32Array([287454020]).buffer)[0]; /*! noble-hashes - MIT License (c) 2022 Paul Miller (paulmillr.com) */if(!isLE)throw new Error("Non little-endian hardware is not supported");function utf8ToBytes(t){if("string"!=typeof t)throw new TypeError("utf8ToBytes expected string, got "+typeof t);return(new TextEncoder).encode(t)}function toBytes(t){if("string"==typeof t&&(t=utf8ToBytes(t)),!(t instanceof Uint8Array))throw new TypeError(`Expected input type is Uint8Array (got ${typeof t})`);return t}Array.from({length:256},((t,e)=>e.toString(16).padStart(2,"0")));class Hash{clone(){return this._cloneInto()}}function wrapConstructor(t){const e=e=>t().update(toBytes(e)).digest(),r=t();return e.outputLen=r.outputLen,e.blockLen=r.blockLen,e.create=()=>t(),e}function setBigUint64(t,e,r,n){if("function"==typeof t.setBigUint64)return t.setBigUint64(e,r,n);const o=BigInt(32),i=BigInt(4294967295),s=Number(r>>o&i),a=Number(r&i),u=n?4:0,c=n?0:4;t.setUint32(e+u,s,n),t.setUint32(e+c,a,n)}class SHA2 extends Hash{constructor(t,e,r,n){super(),this.blockLen=t,this.outputLen=e,this.padOffset=r,this.isLE=n,this.finished=!1,this.length=0,this.pos=0,this.destroyed=!1,this.buffer=new Uint8Array(t),this.view=createView(this.buffer)}update(t){assert$3.exists(this);const{view:e,buffer:r,blockLen:n}=this,o=(t=toBytes(t)).length;for(let i=0;i<o;){const s=Math.min(n-this.pos,o-i);if(s!==n)r.set(t.subarray(i,i+s),this.pos),this.pos+=s,i+=s,this.pos===n&&(this.process(e,0),this.pos=0);else{const e=createView(t);for(;n<=o-i;i+=n)this.process(e,i)}}return this.length+=t.length,this.roundClean(),this}digestInto(t){assert$3.exists(this),assert$3.output(t,this),this.finished=!0;const{buffer:e,view:r,blockLen:n,isLE:o}=this;let{pos:i}=this;e[i++]=128,this.buffer.subarray(i).fill(0),this.padOffset>n-i&&(this.process(r,0),i=0);for(let t=i;t<n;t++)e[t]=0;setBigUint64(r,n-8,BigInt(8*this.length),o),this.process(r,0);const s=createView(t);this.get().forEach(((t,e)=>s.setUint32(4*e,t,o)))}digest(){const{buffer:t,outputLen:e}=this;this.digestInto(t);const r=t.slice(0,e);return this.destroy(),r}_cloneInto(t){t||(t=new this.constructor),t.set(...this.get());const{blockLen:e,buffer:r,length:n,finished:o,destroyed:i,pos:s}=this;return t.length=n,t.pos=s,t.finished=o,t.destroyed=i,n%e&&t.buffer.set(r),t}}const U32_MASK64=BigInt(2**32-1),_32n=BigInt(32);function fromBig(t,e=!1){return e?{h:Number(t&U32_MASK64),l:Number(t>>_32n&U32_MASK64)}:{h:0|Number(t>>_32n&U32_MASK64),l:0|Number(t&U32_MASK64)}}function split(t,e=!1){let r=new Uint32Array(t.length),n=new Uint32Array(t.length);for(let o=0;o<t.length;o++){const{h:i,l:s}=fromBig(t[o],e);[r[o],n[o]]=[i,s]}return[r,n]}const toBig=(t,e)=>BigInt(t>>>0)<<_32n|BigInt(e>>>0),shrSH=(t,e,r)=>t>>>r,shrSL=(t,e,r)=>t<<32-r|e>>>r,rotrSH=(t,e,r)=>t>>>r|e<<32-r,rotrSL=(t,e,r)=>t<<32-r|e>>>r,rotrBH=(t,e,r)=>t<<64-r|e>>>r-32,rotrBL=(t,e,r)=>t>>>r-32|e<<64-r,rotr32H=(t,e)=>e,rotr32L=(t,e)=>t,rotlSH=(t,e,r)=>t<<r|e>>>32-r,rotlSL=(t,e,r)=>e<<r|t>>>32-r,rotlBH=(t,e,r)=>e<<r-32|t>>>64-r,rotlBL=(t,e,r)=>t<<r-32|e>>>64-r;function add(t,e,r,n){const o=(e>>>0)+(n>>>0);return{h:t+r+(o/2**32|0)|0,l:0|o}}const add3L=(t,e,r)=>(t>>>0)+(e>>>0)+(r>>>0),add3H=(t,e,r,n)=>e+r+n+(t/2**32|0)|0,add4L=(t,e,r,n)=>(t>>>0)+(e>>>0)+(r>>>0)+(n>>>0),add4H=(t,e,r,n,o)=>e+r+n+o+(t/2**32|0)|0,add5L=(t,e,r,n,o)=>(t>>>0)+(e>>>0)+(r>>>0)+(n>>>0)+(o>>>0),add5H=(t,e,r,n,o,i)=>e+r+n+o+i+(t/2**32|0)|0,u64$2={fromBig:fromBig,split:split,toBig:toBig,shrSH:shrSH,shrSL:shrSL,rotrSH:rotrSH,rotrSL:rotrSL,rotrBH:rotrBH,rotrBL:rotrBL,rotr32H:rotr32H,rotr32L:rotr32L,rotlSH:rotlSH,rotlSL:rotlSL,rotlBH:rotlBH,rotlBL:rotlBL,add:add,add3L:add3L,add3H:add3H,add4L:add4L,add4H:add4H,add5H:add5H,add5L:add5L},[SHA512_Kh,SHA512_Kl]=u64$2.split(["0x428a2f98d728ae22","0x7137449123ef65cd","0xb5c0fbcfec4d3b2f","0xe9b5dba58189dbbc","0x3956c25bf348b538","0x59f111f1b605d019","0x923f82a4af194f9b","0xab1c5ed5da6d8118","0xd807aa98a3030242","0x12835b0145706fbe","0x243185be4ee4b28c","0x550c7dc3d5ffb4e2","0x72be5d74f27b896f","0x80deb1fe3b1696b1","0x9bdc06a725c71235","0xc19bf174cf692694","0xe49b69c19ef14ad2","0xefbe4786384f25e3","0x0fc19dc68b8cd5b5","0x240ca1cc77ac9c65","0x2de92c6f592b0275","0x4a7484aa6ea6e483","0x5cb0a9dcbd41fbd4","0x76f988da831153b5","0x983e5152ee66dfab","0xa831c66d2db43210","0xb00327c898fb213f","0xbf597fc7beef0ee4","0xc6e00bf33da88fc2","0xd5a79147930aa725","0x06ca6351e003826f","0x142929670a0e6e70","0x27b70a8546d22ffc","0x2e1b21385c26c926","0x4d2c6dfc5ac42aed","0x53380d139d95b3df","0x650a73548baf63de","0x766a0abb3c77b2a8","0x81c2c92e47edaee6","0x92722c851482353b","0xa2bfe8a14cf10364","0xa81a664bbc423001","0xc24b8b70d0f89791","0xc76c51a30654be30","0xd192e819d6ef5218","0xd69906245565a910","0xf40e35855771202a","0x106aa07032bbd1b8","0x19a4c116b8d2d0c8","0x1e376c085141ab53","0x2748774cdf8eeb99","0x34b0bcb5e19b48a8","0x391c0cb3c5c95a63","0x4ed8aa4ae3418acb","0x5b9cca4f7763e373","0x682e6ff3d6b2b8a3","0x748f82ee5defb2fc","0x78a5636f43172f60","0x84c87814a1f0ab72","0x8cc702081a6439ec","0x90befffa23631e28","0xa4506cebde82bde9","0xbef9a3f7b2c67915","0xc67178f2e372532b","0xca273eceea26619c","0xd186b8c721c0c207","0xeada7dd6cde0eb1e","0xf57d4f7fee6ed178","0x06f067aa72176fba","0x0a637dc5a2c898a6","0x113f9804bef90dae","0x1b710b35131c471b","0x28db77f523047d84","0x32caab7b40c72493","0x3c9ebe0a15c9bebc","0x431d67c49c100d4c","0x4cc5d4becb3e42b6","0x597f299cfc657e2a","0x5fcb6fab3ad6faec","0x6c44198c4a475817"].map((t=>BigInt(t)))),SHA512_W_H=new Uint32Array(80),SHA512_W_L=new Uint32Array(80);class SHA512 extends SHA2{constructor(){super(128,64,16,!1),this.Ah=1779033703,this.Al=-205731576,this.Bh=-1150833019,this.Bl=-2067093701,this.Ch=1013904242,this.Cl=-23791573,this.Dh=-1521486534,this.Dl=1595750129,this.Eh=1359893119,this.El=-1377402159,this.Fh=-1694144372,this.Fl=725511199,this.Gh=528734635,this.Gl=-79577749,this.Hh=1541459225,this.Hl=327033209}get(){const{Ah:t,Al:e,Bh:r,Bl:n,Ch:o,Cl:i,Dh:s,Dl:a,Eh:u,El:c,Fh:l,Fl:d,Gh:h,Gl:f,Hh:p,Hl:y}=this;return[t,e,r,n,o,i,s,a,u,c,l,d,h,f,p,y]}set(t,e,r,n,o,i,s,a,u,c,l,d,h,f,p,y){this.Ah=0|t,this.Al=0|e,this.Bh=0|r,this.Bl=0|n,this.Ch=0|o,this.Cl=0|i,this.Dh=0|s,this.Dl=0|a,this.Eh=0|u,this.El=0|c,this.Fh=0|l,this.Fl=0|d,this.Gh=0|h,this.Gl=0|f,this.Hh=0|p,this.Hl=0|y}process(t,e){for(let r=0;r<16;r++,e+=4)SHA512_W_H[r]=t.getUint32(e),SHA512_W_L[r]=t.getUint32(e+=4);for(let t=16;t<80;t++){const e=0|SHA512_W_H[t-15],r=0|SHA512_W_L[t-15],n=u64$2.rotrSH(e,r,1)^u64$2.rotrSH(e,r,8)^u64$2.shrSH(e,r,7),o=u64$2.rotrSL(e,r,1)^u64$2.rotrSL(e,r,8)^u64$2.shrSL(e,r,7),i=0|SHA512_W_H[t-2],s=0|SHA512_W_L[t-2],a=u64$2.rotrSH(i,s,19)^u64$2.rotrBH(i,s,61)^u64$2.shrSH(i,s,6),u=u64$2.rotrSL(i,s,19)^u64$2.rotrBL(i,s,61)^u64$2.shrSL(i,s,6),c=u64$2.add4L(o,u,SHA512_W_L[t-7],SHA512_W_L[t-16]),l=u64$2.add4H(c,n,a,SHA512_W_H[t-7],SHA512_W_H[t-16]);SHA512_W_H[t]=0|l,SHA512_W_L[t]=0|c}let{Ah:r,Al:n,Bh:o,Bl:i,Ch:s,Cl:a,Dh:u,Dl:c,Eh:l,El:d,Fh:h,Fl:f,Gh:p,Gl:y,Hh:m,Hl:g}=this;for(let t=0;t<80;t++){const e=u64$2.rotrSH(l,d,14)^u64$2.rotrSH(l,d,18)^u64$2.rotrBH(l,d,41),b=u64$2.rotrSL(l,d,14)^u64$2.rotrSL(l,d,18)^u64$2.rotrBL(l,d,41),_=l&h^~l&p,w=d&f^~d&y,S=u64$2.add5L(g,b,w,SHA512_Kl[t],SHA512_W_L[t]),v=u64$2.add5H(S,m,e,_,SHA512_Kh[t],SHA512_W_H[t]),E=0|S,A=u64$2.rotrSH(r,n,28)^u64$2.rotrBH(r,n,34)^u64$2.rotrBH(r,n,39),T=u64$2.rotrSL(r,n,28)^u64$2.rotrBL(r,n,34)^u64$2.rotrBL(r,n,39),R=r&o^r&s^o&s,I=n&i^n&a^i&a;m=0|p,g=0|y,p=0|h,y=0|f,h=0|l,f=0|d,({h:l,l:d}=u64$2.add(0|u,0|c,0|v,0|E)),u=0|s,c=0|a,s=0|o,a=0|i,o=0|r,i=0|n;const k=u64$2.add3L(E,T,I);r=u64$2.add3H(k,v,A,R),n=0|k}({h:r,l:n}=u64$2.add(0|this.Ah,0|this.Al,0|r,0|n)),({h:o,l:i}=u64$2.add(0|this.Bh,0|this.Bl,0|o,0|i)),({h:s,l:a}=u64$2.add(0|this.Ch,0|this.Cl,0|s,0|a)),({h:u,l:c}=u64$2.add(0|this.Dh,0|this.Dl,0|u,0|c)),({h:l,l:d}=u64$2.add(0|this.Eh,0|this.El,0|l,0|d)),({h:h,l:f}=u64$2.add(0|this.Fh,0|this.Fl,0|h,0|f)),({h:p,l:y}=u64$2.add(0|this.Gh,0|this.Gl,0|p,0|y)),({h:m,l:g}=u64$2.add(0|this.Hh,0|this.Hl,0|m,0|g)),this.set(r,n,o,i,s,a,u,c,l,d,h,f,p,y,m,g)}roundClean(){SHA512_W_H.fill(0),SHA512_W_L.fill(0)}destroy(){this.buffer.fill(0),this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)}}class SHA512_256 extends SHA512{constructor(){super(),this.Ah=573645204,this.Al=-64227540,this.Bh=-1621794909,this.Bl=-934517566,this.Ch=596883563,this.Cl=1867755857,this.Dh=-1774684391,this.Dl=1497426621,this.Eh=-1775747358,this.El=-1467023389,this.Fh=-1101128155,this.Fl=1401305490,this.Gh=721525244,this.Gl=746961066,this.Hh=246885852,this.Hl=-2117784414,this.outputLen=32}}class SHA384 extends SHA512{constructor(){super(),this.Ah=-876896931,this.Al=-1056596264,this.Bh=1654270250,this.Bl=914150663,this.Ch=-1856437926,this.Cl=812702999,this.Dh=355462360,this.Dl=-150054599,this.Eh=1731405415,this.El=-4191439,this.Fh=-1900787065,this.Fl=1750603025,this.Gh=-619958771,this.Gl=1694076839,this.Hh=1203062813,this.Hl=-1090891868,this.outputLen=48}}const sha512=wrapConstructor((()=>new SHA512));wrapConstructor((()=>new SHA512_256)),wrapConstructor((()=>new SHA384));var _nodeResolve_empty={},nodeCrypto=Object.freeze({__proto__:null,default:_nodeResolve_empty}); /*! noble-ed25519 - MIT License (c) 2019 Paul Miller (paulmillr.com) */ const _0n$1=BigInt(0),_1n$1=BigInt(1),_2n$1=BigInt(2),_255n=BigInt(255),CURVE_ORDER=_2n$1**BigInt(252)+BigInt("27742317777372353535851937790883648493"),CURVE$1=Object.freeze({a:BigInt(-1),d:BigInt("37095705934669439343138083508754565189542113879843219016388785533085940283555"),P:_2n$1**_255n-BigInt(19),l:CURVE_ORDER,n:CURVE_ORDER,h:BigInt(8),Gx:BigInt("15112221349535400772501151409588531511454012693041857206046113283949847762202"),Gy:BigInt("46316835694926478169428394003475163141307993866256225615783033603165251855960")}),MAX_256B=_2n$1**BigInt(256),SQRT_M1=BigInt("19681161376707505956807079304988542015446066515923890162744021073123829784752");BigInt("6853475219497561581579357271197624642482790079785650197046958215289687604742");const SQRT_AD_MINUS_ONE=BigInt("25063068953384623474111414158702152701244531502492656460079210482610430750235"),INVSQRT_A_MINUS_D=BigInt("54469307008909316920995813868745141605393597292927456921205312896311721017578"),ONE_MINUS_D_SQ=BigInt("1159843021668779879193775521855586647937357759715417654439879720876111806838"),D_MINUS_ONE_SQ=BigInt("40440834346308536858101042469323190826248399146238708352240133220865137265952");class ExtendedPoint{constructor(t,e,r,n){this.x=t,this.y=e,this.z=r,this.t=n}static fromAffine(t){if(!(t instanceof Point$1))throw new TypeError("ExtendedPoint#fromAffine: expected Point");return t.equals(Point$1.ZERO)?ExtendedPoint.ZERO:new ExtendedPoint(t.x,t.y,_1n$1,mod$1(t.x*t.y))}static toAffineBatch(t){const e=invertBatch$1(t.map((t=>t.z)));return t.map(((t,r)=>t.toAffine(e[r])))}static normalizeZ(t){return this.toAffineBatch(t).map(this.fromAffine)}equals(t){assertExtPoint(t);const{x:e,y:r,z:n}=this,{x:o,y:i,z:s}=t,a=mod$1(e*s),u=mod$1(o*n),c=mod$1(r*s),l=mod$1(i*n);return a===u&&c===l}negate(){return new ExtendedPoint(mod$1(-this.x),this.y,this.z,mod$1(-this.t))}double(){const{x:t,y:e,z:r}=this,{a:n}=CURVE$1,o=mod$1(t**_2n$1),i=mod$1(e**_2n$1),s=mod$1(_2n$1*mod$1(r**_2n$1)),a=mod$1(n*o),u=mod$1(mod$1((t+e)**_2n$1)-o-i),c=a+i,l=c-s,d=a-i,h=mod$1(u*l),f=mod$1(c*d),p=mod$1(u*d),y=mod$1(l*c);return new ExtendedPoint(h,f,y,p)}add(t){assertExtPoint(t);const{x:e,y:r,z:n,t:o}=this,{x:i,y:s,z:a,t:u}=t,c=mod$1((r-e)*(s+i)),l=mod$1((r+e)*(s-i)),d=mod$1(l-c);if(d===_0n$1)return this.double();const h=mod$1(n*_2n$1*u),f=mod$1(o*_2n$1*a),p=f+h,y=l+c,m=f-h,g=mod$1(p*d),b=mod$1(y*m),_=mod$1(p*m),w=mod$1(d*y);return new ExtendedPoint(g,b,w,_)}subtract(t){return this.add(t.negate())}precomputeWindow(t){const e=1+256/t,r=[];let n=this,o=n;for(let i=0;i<e;i++){o=n,r.push(o);for(let e=1;e<2**(t-1);e++)o=o.add(n),r.push(o);n=o.double()}return r}wNAF(t,e){!e&&this.equals(ExtendedPoint.BASE)&&(e=Point$1.BASE);const r=e&&e._WINDOW_SIZE||1;if(256%r)throw new Error("Point#wNAF: Invalid precomputation window, must be power of 2");let n=e&&pointPrecomputes$1.get(e);n||(n=this.precomputeWindow(r),e&&1!==r&&(n=ExtendedPoint.normalizeZ(n),pointPrecomputes$1.set(e,n)));let o=ExtendedPoint.ZERO,i=ExtendedPoint.ZERO;const s=1+256/r,a=2**(r-1),u=BigInt(2**r-1),c=2**r,l=BigInt(r);for(let e=0;e<s;e++){const r=e*a;let s=Number(t&u);if(t>>=l,s>a&&(s-=c,t+=_1n$1),0===s){let t=n[r];e%2&&(t=t.negate()),i=i.add(t)}else{let t=n[r+Math.abs(s)-1];s<0&&(t=t.negate()),o=o.add(t)}}return ExtendedPoint.normalizeZ([o,i])[0]}multiply(t,e){return this.wNAF(normalizeScalar$1(t,CURVE$1.l),e)}multiplyUnsafe(t){let e=normalizeScalar$1(t,CURVE$1.l,!1);const r=ExtendedPoint.BASE,n=ExtendedPoint.ZERO;if(e===_0n$1)return n;if(this.equals(n)||e===_1n$1)return this;if(this.equals(r))return this.wNAF(e);let o=n,i=this;for(;e>_0n$1;)e&_1n$1&&(o=o.add(i)),i=i.double(),e>>=_1n$1;return o}isSmallOrder(){return this.multiplyUnsafe(CURVE$1.h).equals(ExtendedPoint.ZERO)}isTorsionFree(){return this.multiplyUnsafe(CURVE$1.l).equals(ExtendedPoint.ZERO)}toAffine(t=invert$1(this.z)){const{x:e,y:r,z:n}=this,o=mod$1(e*t),i=mod$1(r*t);if(mod$1(n*t)!==_1n$1)throw new Error("invZ was invalid");return new Point$1(o,i)}fromRistrettoBytes(){legacyRist()}toRistrettoBytes(){legacyRist()}fromRistrettoHash(){legacyRist()}}function assertExtPoint(t){if(!(t instanceof ExtendedPoint))throw new TypeError("ExtendedPoint expected")}function assertRstPoint(t){if(!(t instanceof RistrettoPoint))throw new TypeError("RistrettoPoint expected")}function legacyRist(){throw new Error("Legacy method: switch to RistrettoPoint")}ExtendedPoint.BASE=new ExtendedPoint(CURVE$1.Gx,CURVE$1.Gy,_1n$1,mod$1(CURVE$1.Gx*CURVE$1.Gy)),ExtendedPoint.ZERO=new ExtendedPoint(_0n$1,_1n$1,_1n$1,_0n$1);class RistrettoPoint{constructor(t){this.ep=t}static calcElligatorRistrettoMap(t){const{d:e}=CURVE$1,r=mod$1(SQRT_M1*t*t),n=mod$1((r+_1n$1)*ONE_MINUS_D_SQ);let o=BigInt(-1);const i=mod$1((o-e*r)*mod$1(r+e));let{isValid:s,value:a}=uvRatio(n,i),u=mod$1(a*t);edIsNegative(u)||(u=mod$1(-u)),s||(a=u),s||(o=r);const c=mod$1(o*(r-_1n$1)*D_MINUS_ONE_SQ-i),l=a*a,d=mod$1((a+a)*i),h=mod$1(c*SQRT_AD_MINUS_ONE),f=mod$1(_1n$1-l),p=mod$1(_1n$1+l);return new ExtendedPoint(mod$1(d*p),mod$1(f*h),mod$1(h*p),mod$1(d*f))}static hashToCurve(t){const e=bytes255ToNumberLE((t=ensureBytes$1(t,64)).slice(0,32)),r=this.calcElligatorRistrettoMap(e),n=bytes255ToNumberLE(t.slice(32,64)),o=this.calcElligatorRistrettoMap(n);return new RistrettoPoint(r.add(o))}static fromHex(t){t=ensureBytes$1(t,32);const{a:e,d:r}=CURVE$1,n="RistrettoPoint.fromHex: the hex is not valid encoding of RistrettoPoint",o=bytes255ToNumberLE(t);if(!equalBytes(numberTo32BytesLE(o),t)||edIsNegative(o))throw new Error(n);const i=mod$1(o*o),s=mod$1(_1n$1+e*i),a=mod$1(_1n$1-e*i),u=mod$1(s*s),c=mod$1(a*a),l=mod$1(e*r*u-c),{isValid:d,value:h}=invertSqrt(mod$1(l*c)),f=mod$1(h*a),p=mod$1(h*f*l);let y=mod$1((o+o)*f);edIsNegative(y)&&(y=mod$1(-y));const m=mod$1(s*p),g=mod$1(y*m);if(!d||edIsNegative(g)||m===_0n$1)throw new Error(n);return new RistrettoPoint(new ExtendedPoint(y,m,_1n$1,g))}toRawBytes(){let{x:t,y:e,z:r,t:n}=this.ep;const o=mod$1(mod$1(r+e)*mod$1(r-e)),i=mod$1(t*e),{value:s}=invertSqrt(mod$1(o*i**_2n$1)),a=mod$1(s*o),u=mod$1(s*i),c=mod$1(a*u*n);let l;if(edIsNegative(n*c)){let r=mod$1(e*SQRT_M1),n=mod$1(t*SQRT_M1);t=r,e=n,l=mod$1(a*INVSQRT_A_MINUS_D)}else l=u;edIsNegative(t*c)&&(e=mod$1(-e));let d=mod$1((r-e)*l);return edIsNegative(d)&&(d=mod$1(-d)),numberTo32BytesLE(d)}toHex(){return bytesToHex$1(this.toRawBytes())}toString(){return this.toHex()}equals(t){assertRstPoint(t);const e=this.ep,r=t.ep,n=mod$1(e.x*r.y)===mod$1(e.y*r.x),o=mod$1(e.y*r.y)===mod$1(e.x*r.x);return n||o}add(t){return assertRstPoint(t),new RistrettoPoint(this.ep.add(t.ep))}subtract(t){return assertRstPoint(t),new RistrettoPoint(this.ep.subtract(t.ep))}multiply(t){return new RistrettoPoint(this.ep.multiply(t))}multiplyUnsafe(t){return new RistrettoPoint(this.ep.multiplyUnsafe(t))}}RistrettoPoint.BASE=new RistrettoPoint(ExtendedPoint.BASE),RistrettoPoint.ZERO=new RistrettoPoint(ExtendedPoint.ZERO);const pointPrecomputes$1=new WeakMap;class Point$1{constructor(t,e){this.x=t,this.y=e}_setWindowSize(t){this._WINDOW_SIZE=t,pointPrecomputes$1.delete(this)}static fromHex(t,e=!0){const{d:r,P:n}=CURVE$1,o=(t=ensureBytes$1(t,32)).slice();o[31]=-129&t[31];const i=bytesToNumberLE(o);if(e&&i>=n)throw new Error("Expected 0 < hex < P");if(!e&&i>=MAX_256B)throw new Error("Expected 0 < hex < 2**256");const s=mod$1(i*i),a=mod$1(s-_1n$1),u=mod$1(r*s+_1n$1);let{isValid:c,value:l}=uvRatio(a,u);if(!c)throw new Error("Point.fromHex: invalid y coordinate");const d=(l&_1n$1)===_1n$1;return 0!=(128&t[31])!==d&&(l=mod$1(-l)),new Point$1(l,i)}static async fromPrivateKey(t){return(await getExtendedPublicKey(t)).point}toRawBytes(){const t=numberTo32BytesLE(this.y);return t[31]|=this.x&_1n$1?128:0,t}toHex(){return bytesToHex$1(this.toRawBytes())}toX25519(){const{y:t}=this;return numberTo32BytesLE(mod$1((_1n$1+t)*invert$1(_1n$1-t)))}isTorsionFree(){return ExtendedPoint.fromAffine(this).isTorsionFree()}equals(t){return this.x===t.x&&this.y===t.y}negate(){return new Point$1(mod$1(-this.x),this.y)}add(t){return ExtendedPoint.fromAffine(this).add(ExtendedPoint.fromAffine(t)).toAffine()}subtract(t){return this.add(t.negate())}multiply(t){return ExtendedPoint.fromAffine(this).multiply(t,this).toAffine()}}Point$1.BASE=new Point$1(CURVE$1.Gx,CURVE$1.Gy),Point$1.ZERO=new Point$1(_0n$1,_1n$1);class Signature$1{constructor(t,e){this.r=t,this.s=e,this.assertValidity()}static fromHex(t){const e=ensureBytes$1(t,64),r=Point$1.fromHex(e.slice(0,32),!1),n=bytesToNumberLE(e.slice(32,64));return new Signature$1(r,n)}assertValidity(){const{r:t,s:e}=this;if(!(t instanceof Point$1))throw new Error("Expected Point instance");return normalizeScalar$1(e,CURVE$1.l,!1),this}toRawBytes(){const t=new Uint8Array(64);return t.set(this.r.toRawBytes()),t.set(numberTo32BytesLE(this.s),32),t}toHex(){return bytesToHex$1(this.toRawBytes())}}function concatBytes$1(...t){if(!t.every((t=>t instanceof Uint8Array)))throw new Error("Expected Uint8Array list");if(1===t.length)return t[0];const e=t.reduce(((t,e)=>t+e.length),0),r=new Uint8Array(e);for(let e=0,n=0;e<t.length;e++){const o=t[e];r.set(o,n),n+=o.length}return r}const hexes$1=Array.from({length:256},((t,e)=>e.toString(16).padStart(2,"0")));function bytesToHex$1(t){if(!(t instanceof Uint8Array))throw new Error("Uint8Array expected");let e="";for(let r=0;r<t.length;r++)e+=hexes$1[t[r]];return e}function hexToBytes$1(t){if("string"!=typeof t)throw new TypeError("hexToBytes: expected string, got "+typeof t);if(t.length%2)throw new Error("hexToBytes: received invalid unpadded hex");const e=new Uint8Array(t.length/2);for(let r=0;r<e.length;r++){const n=2*r,o=t.slice(n,n+2),i=Number.parseInt(o,16);if(Number.isNaN(i)||i<0)throw new Error("Invalid byte sequence");e[r]=i}return e}function numberTo32BytesBE(t){return hexToBytes$1(t.toString(16).padStart(64,"0"))}function numberTo32BytesLE(t){return numberTo32BytesBE(t).reverse()}function edIsNegative(t){return(mod$1(t)&_1n$1)===_1n$1}function bytesToNumberLE(t){if(!(t instanceof Uint8Array))throw new Error("Expected Uint8Array");return BigInt("0x"+bytesToHex$1(Uint8Array.from(t).reverse()))}function bytes255ToNumberLE(t){return mod$1(bytesToNumberLE(t)&_2n$1**_255n-_1n$1)}function mod$1(t,e=CURVE$1.P){const r=t%e;return r>=_0n$1?r:e+r}function invert$1(t,e=CURVE$1.P){if(t===_0n$1||e<=_0n$1)throw new Error(`invert: expected positive integers, got n=${t} mod=${e}`);let r=mod$1(t,e),n=e,o=_0n$1,i=_1n$1;for(;r!==_0n$1;){const t=n%r,e=o-i*(n/r);n=r,r=t,o=i,i=e}if(n!==_1n$1)throw new Error("invert: does not exist");return mod$1(o,e)}function invertBatch$1(t,e=CURVE$1.P){const r=new Array(t.length),n=t.reduce(((t,n,o)=>n===_0n$1?t:(r[o]=t,mod$1(t*n,e))),_1n$1),o=invert$1(n,e);return t.reduceRight(((t,n,o)=>n===_0n$1?t:(r[o]=mod$1(t*r[o],e),mod$1(t*n,e))),o),r}function pow2$1(t,e){const{P:r}=CURVE$1;let n=t;for(;e-- >_0n$1;)n*=n,n%=r;return n}function pow_2_252_3(t){const{P:e}=CURVE$1,r=BigInt(5),n=BigInt(10),o=BigInt(20),i=BigInt(40),s=BigInt(80),a=t*t%e*t%e,u=pow2$1(a,_2n$1)*a%e,c=pow2$1(u,_1n$1)*t%e,l=pow2$1(c,r)*c%e,d=pow2$1(l,n)*l%e,h=pow2$1(d,o)*d%e,f=pow2$1(h,i)*h%e,p=pow2$1(f,s)*f%e,y=pow2$1(p,s)*f%e,m=pow2$1(y,n)*l%e;return{pow_p_5_8:pow2$1(m,_2n$1)*t%e,b2:a}}function uvRatio(t,e){const r=mod$1(e*e*e),n=mod$1(r*r*e);let o=mod$1(t*r*pow_