>>=26,e.words[r]=i,t=n}return 0!==t&&(e.words[e.length++]=t),e},a._prime=function(e){if(b[e])return b[e]
var t
if("k256"===e)t=new w
else if("p224"===e)t=new _
-else if("p192"===e)t=new k
+else if("p192"===e)t=new x
else{if("p25519"!==e)throw new Error("Unknown prime "+e)
-t=new x}return b[e]=t,t},O.prototype._verify1=function(e){i(0===e.negative,"red works only with positives"),i(e.red,"red works only with red numbers")},O.prototype._verify2=function(e,t){i(0==(e.negative|t.negative),"red works only with positives"),i(e.red&&e.red===t.red,"red works only with red numbers")},O.prototype.imod=function(e){return this.prime?this.prime.ireduce(e)._forceRed(this):e.umod(this.m)._forceRed(this)},O.prototype.neg=function(e){return e.isZero()?e.clone():this.m.sub(e)._forceRed(this)},O.prototype.add=function(e,t){this._verify2(e,t)
+t=new k}return b[e]=t,t},O.prototype._verify1=function(e){i(0===e.negative,"red works only with positives"),i(e.red,"red works only with red numbers")},O.prototype._verify2=function(e,t){i(0==(e.negative|t.negative),"red works only with positives"),i(e.red&&e.red===t.red,"red works only with red numbers")},O.prototype.imod=function(e){return this.prime?this.prime.ireduce(e)._forceRed(this):e.umod(this.m)._forceRed(this)},O.prototype.neg=function(e){return e.isZero()?e.clone():this.m.sub(e)._forceRed(this)},O.prototype.add=function(e,t){this._verify2(e,t)
var r=e.add(t)
return r.cmp(this.m)>=0&&r.isub(this.m),r._forceRed(this)},O.prototype.iadd=function(e,t){this._verify2(e,t)
var r=e.iadd(t)
@@ -7810,10 +7468,10 @@ return this.pow(e,r)}for(var n=this.m.subn(1),o=0;!n.isZero()&&0===n.andln(1);)o
i(!n.isZero())
var s=new a(1).toRed(this),u=s.redNeg(),c=this.m.subn(1).iushrn(1),l=this.m.bitLength()
for(l=new a(2*l*l).toRed(this);0!==this.pow(l,c).cmp(u);)l.redIAdd(u)
-for(var f=this.pow(l,n),h=this.pow(e,n.addn(1).iushrn(1)),d=this.pow(e,n),p=o;0!==d.cmp(s);){for(var m=d,v=0;0!==m.cmp(s);v++)m=m.redSqr()
-i(v=0?o=i.isub(this.m):i.cmpn(0)<0&&(o=i.iadd(this.m)),o._forceRed(this)},E.prototype.mul=function(e,t){if(e.isZero()||t.isZero())return new a(0)._forceRed(this)
var r=e.mul(t),n=r.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m),i=r.isub(n).iushrn(this.shift),o=i
-return i.cmp(this.m)>=0?o=i.isub(this.m):i.cmpn(0)<0&&(o=i.iadd(this.m)),o._forceRed(this)},E.prototype.invm=function(e){return this.imod(e._invmp(this.m).mul(this.r2))._forceRed(this)}}(e,this)}).call(this,r(28)(e))},function(e,t,r){"use strict"
+return i.cmp(this.m)>=0?o=i.isub(this.m):i.cmpn(0)<0&&(o=i.iadd(this.m)),o._forceRed(this)},E.prototype.invm=function(e){return this.imod(e._invmp(this.m).mul(this.r2))._forceRed(this)}}(e,this)}).call(this,r(32)(e))},function(e,t,r){"use strict"
function n(e,t){return function(e){if(Array.isArray(e))return e}(e)||function(e,t){var r=null==e?null:"undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"]
if(null!=r){var n,i,o=[],a=!0,s=!1
try{for(r=r.call(e);!(a=(n=r.next()).done)&&(o.push(n.value),!t||o.length!==t);a=!0);}catch(e){s=!0,i=e}finally{try{a||null==r.return||r.return()}finally{if(s)throw i}}return o}}(e,t)||function(e,t){if(e){if("string"==typeof e)return i(e,t)
@@ -7837,14 +7495,14 @@ return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?A
for(var r=0,n=new Array(t);r=65&&r<=70?r-55:r>=97&&r<=102?r-87:r-48&15}function c(e,t,r){var n=u(e,r)
-return r-1>=t&&(n|=u(e,r-1)<<4),n}function l(e,t,r,n){for(var i=0,o=Math.min(e.length,r),a=t;a=49?s-49+10:s>=17?s-17+10:s}return i}a.isBN=function(e){return e instanceof a||null!==e&&"object"===t(e)&&e.constructor.wordSize===a.wordSize&&Array.isArray(e.words)},a.max=function(e,t){return e.cmp(t)>0?e:t},a.min=function(e,t){return e.cmp(t)<0?e:t},a.prototype._init=function(e,r,n){if("number"==typeof e)return this._initNumber(e,r,n)
-if("object"===t(e))return this._initArray(e,r,n)
-"hex"===r&&(r=16),i(r===(0|r)&&r>=2&&r<=36)
-var o=0
-"-"===(e=e.toString().replace(/\s+/g,""))[0]&&(o++,this.negative=1),o=0;n-=3)a=e[n]|e[n-1]<<8|e[n-2]<<16,this.words[o]|=a<