diff --git a/sha256sum.html b/sha256sum.html
new file mode 100644
index 0000000..47327ad
--- /dev/null
+++ b/sha256sum.html
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+<html>
+
+	<head>
+		<meta charset="utf-8">
+		<title>sha256sum</title>
+		<style type="text/css" media="screen">
+body {
+	width: 800px;
+	margin: 50px auto;
+}
+		.txtcenter {
+			text-align: center;
+		}
+		textarea {
+			width: 600px;
+		}
+		textarea#sha {
+			width: 100%;
+		}
+		</style>
+	</head>
+
+	<body>
+		<header>
+			<h1 class="txtcenter">sha256sum</h1>
+		</header>
+		<div>
+			<label>champ1 &nbsp;<textarea type="text" name="" id="c1"></textarea></label>
+		</div>
+		<div>
+			<label>champ2 &nbsp;<textarea type="text" name="" id="c2">|</textarea></label>
+		</div>
+		<div>
+			<label>champ3 &nbsp;<textarea type="text" name="" id="c3"></textarea></label>
+		</div>
+		<br>
+		<br>
+		<div class="txtcenter">
+			<button id="creer">SHA256SUM</button>
+		</div>
+		<br>
+		<hr>
+		<br>
+		<h2 class="txtcenter"> Resultat </h2>
+			<textarea name="" id="sha"></textarea>
+	</body>
+	<script type="text/javascript">
+
+		!function(){"use strict";function t(t,i){i?(d[0]=d[16]=d[1]=d[2]=d[3]=d[4]=d[5]=d[6]=d[7]=d[8]=d[9]=d[10]=d[11]=d[12]=d[13]=d[14]=d[15]=0,this.blocks=d):this.blocks=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],t?(this.h0=3238371032,this.h1=914150663,this.h2=812702999,this.h3=4144912697,this.h4=4290775857,this.h5=1750603025,this.h6=1694076839,this.h7=3204075428):(this.h0=1779033703,this.h1=3144134277,this.h2=1013904242,this.h3=2773480762,this.h4=1359893119,this.h5=2600822924,this.h6=528734635,this.h7=1541459225),this.block=this.start=this.bytes=this.hBytes=0,this.finalized=this.hashed=!1,this.first=!0,this.is224=t}function i(i,r,s){var e,n=typeof i;if("string"===n){var o,a=[],u=i.length,c=0;for(e=0;e<u;++e)(o=i.charCodeAt(e))<128?a[c++]=o:o<2048?(a[c++]=192|o>>6,a[c++]=128|63&o):o<55296||o>=57344?(a[c++]=224|o>>12,a[c++]=128|o>>6&63,a[c++]=128|63&o):(o=65536+((1023&o)<<10|1023&i.charCodeAt(++e)),a[c++]=240|o>>18,a[c++]=128|o>>12&63,a[c++]=128|o>>6&63,a[c++]=128|63&o);i=a}else{if("object"!==n)throw new Error(h);if(null===i)throw new Error(h);if(f&&i.constructor===ArrayBuffer)i=new Uint8Array(i);else if(!(Array.isArray(i)||f&&ArrayBuffer.isView(i)))throw new Error(h)}i.length>64&&(i=new t(r,!0).update(i).array());var y=[],p=[];for(e=0;e<64;++e){var l=i[e]||0;y[e]=92^l,p[e]=54^l}t.call(this,r,s),this.update(p),this.oKeyPad=y,this.inner=!0,this.sharedMemory=s}var h="input is invalid type",r="object"==typeof window,s=r?window:{};s.JS_SHA256_NO_WINDOW&&(r=!1);var e=!r&&"object"==typeof self,n=!s.JS_SHA256_NO_NODE_JS&&"object"==typeof process&&process.versions&&process.versions.node;n?s=global:e&&(s=self);var o=!s.JS_SHA256_NO_COMMON_JS&&"object"==typeof module&&module.exports,a="function"==typeof define&&define.amd,f=!s.JS_SHA256_NO_ARRAY_BUFFER&&"undefined"!=typeof ArrayBuffer,u="0123456789abcdef".split(""),c=[-2147483648,8388608,32768,128],y=[24,16,8,0],p=[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],l=["hex","array","digest","arrayBuffer"],d=[];!s.JS_SHA256_NO_NODE_JS&&Array.isArray||(Array.isArray=function(t){return"[object 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h=v("hex",t);h.create=function(h){return new i(h,t)},h.update=function(t,i){return h.create(t).update(i)};for(var r=0;r<l.length;++r){var s=l[r];h[s]=v(s,t)}return h};t.prototype.update=function(t){if(!this.finalized){var i,r=typeof t;if("string"!==r){if("object"!==r)throw new Error(h);if(null===t)throw new Error(h);if(f&&t.constructor===ArrayBuffer)t=new Uint8Array(t);else if(!(Array.isArray(t)||f&&ArrayBuffer.isView(t)))throw new Error(h);i=!0}for(var s,e,n=0,o=t.length,a=this.blocks;n<o;){if(this.hashed&&(this.hashed=!1,a[0]=this.block,a[16]=a[1]=a[2]=a[3]=a[4]=a[5]=a[6]=a[7]=a[8]=a[9]=a[10]=a[11]=a[12]=a[13]=a[14]=a[15]=0),i)for(e=this.start;n<o&&e<64;++n)a[e>>2]|=t[n]<<y[3&e++];else for(e=this.start;n<o&&e<64;++n)(s=t.charCodeAt(n))<128?a[e>>2]|=s<<y[3&e++]:s<2048?(a[e>>2]|=(192|s>>6)<<y[3&e++],a[e>>2]|=(128|63&s)<<y[3&e++]):s<55296||s>=57344?(a[e>>2]|=(224|s>>12)<<y[3&e++],a[e>>2]|=(128|s>>6&63)<<y[3&e++],a[e>>2]|=(128|63&s)<<y[3&e++]):(s=65536+((1023&s)<<10|1023&t.charCodeAt(++n)),a[e>>2]|=(240|s>>18)<<y[3&e++],a[e>>2]|=(128|s>>12&63)<<y[3&e++],a[e>>2]|=(128|s>>6&63)<<y[3&e++],a[e>>2]|=(128|63&s)<<y[3&e++]);this.lastByteIndex=e,this.bytes+=e-this.start,e>=64?(this.block=a[16],this.start=e-64,this.hash(),this.hashed=!0):this.start=e}return this.bytes>4294967295&&(this.hBytes+=this.bytes/4294967296<<0,this.bytes=this.bytes%4294967296),this}},t.prototype.finalize=function(){if(!this.finalized){this.finalized=!0;var t=this.blocks,i=this.lastByteIndex;t[16]=this.block,t[i>>2]|=c[3&i],this.block=t[16],i>=56&&(this.hashed||this.hash(),t[0]=this.block,t[16]=t[1]=t[2]=t[3]=t[4]=t[5]=t[6]=t[7]=t[8]=t[9]=t[10]=t[11]=t[12]=t[13]=t[14]=t[15]=0),t[14]=this.hBytes<<3|this.bytes>>>29,t[15]=this.bytes<<3,this.hash()}},t.prototype.hash=function(){var t,i,h,r,s,e,n,o,a,f=this.h0,u=this.h1,c=this.h2,y=this.h3,l=this.h4,d=this.h5,A=this.h6,w=this.h7,b=this.blocks;for(t=16;t<64;++t)i=((s=b[t-15])>>>7|s<<25)^(s>>>18|s<<14)^s>>>3,h=((s=b[t-2])>>>17|s<<15)^(s>>>19|s<<13)^s>>>10,b[t]=b[t-16]+i+b[t-7]+h<<0;for(a=u&c,t=0;t<64;t+=4)this.first?(this.is224?(e=300032,w=(s=b[0]-1413257819)-150054599<<0,y=s+24177077<<0):(e=704751109,w=(s=b[0]-210244248)-1521486534<<0,y=s+143694565<<0),this.first=!1):(i=(f>>>2|f<<30)^(f>>>13|f<<19)^(f>>>22|f<<10),r=(e=f&u)^f&c^a,w=y+(s=w+(h=(l>>>6|l<<26)^(l>>>11|l<<21)^(l>>>25|l<<7))+(l&d^~l&A)+p[t]+b[t])<<0,y=s+(i+r)<<0),i=(y>>>2|y<<30)^(y>>>13|y<<19)^(y>>>22|y<<10),r=(n=y&f)^y&u^e,A=c+(s=A+(h=(w>>>6|w<<26)^(w>>>11|w<<21)^(w>>>25|w<<7))+(w&l^~w&d)+p[t+1]+b[t+1])<<0,i=((c=s+(i+r)<<0)>>>2|c<<30)^(c>>>13|c<<19)^(c>>>22|c<<10),r=(o=c&y)^c&f^n,d=u+(s=d+(h=(A>>>6|A<<26)^(A>>>11|A<<21)^(A>>>25|A<<7))+(A&w^~A&l)+p[t+2]+b[t+2])<<0,i=((u=s+(i+r)<<0)>>>2|u<<30)^(u>>>13|u<<19)^(u>>>22|u<<10),r=(a=u&c)^u&y^o,l=f+(s=l+(h=(d>>>6|d<<26)^(d>>>11|d<<21)^(d>>>25|d<<7))+(d&A^~d&w)+p[t+3]+b[t+3])<<0,f=s+(i+r)<<0;this.h0=this.h0+f<<0,this.h1=this.h1+u<<0,this.h2=this.h2+c<<0,this.h3=this.h3+y<<0,this.h4=this.h4+l<<0,this.h5=this.h5+d<<0,this.h6=this.h6+A<<0,this.h7=this.h7+w<<0},t.prototype.hex=function(){this.finalize();var t=this.h0,i=this.h1,h=this.h2,r=this.h3,s=this.h4,e=this.h5,n=this.h6,o=this.h7,a=u[t>>28&15]+u[t>>24&15]+u[t>>20&15]+u[t>>16&15]+u[t>>12&15]+u[t>>8&15]+u[t>>4&15]+u[15&t]+u[i>>28&15]+u[i>>24&15]+u[i>>20&15]+u[i>>16&15]+u[i>>12&15]+u[i>>8&15]+u[i>>4&15]+u[15&i]+u[h>>28&15]+u[h>>24&15]+u[h>>20&15]+u[h>>16&15]+u[h>>12&15]+u[h>>8&15]+u[h>>4&15]+u[15&h]+u[r>>28&15]+u[r>>24&15]+u[r>>20&15]+u[r>>16&15]+u[r>>12&15]+u[r>>8&15]+u[r>>4&15]+u[15&r]+u[s>>28&15]+u[s>>24&15]+u[s>>20&15]+u[s>>16&15]+u[s>>12&15]+u[s>>8&15]+u[s>>4&15]+u[15&s]+u[e>>28&15]+u[e>>24&15]+u[e>>20&15]+u[e>>16&15]+u[e>>12&15]+u[e>>8&15]+u[e>>4&15]+u[15&e]+u[n>>28&15]+u[n>>24&15]+u[n>>20&15]+u[n>>16&15]+u[n>>12&15]+u[n>>8&15]+u[n>>4&15]+u[15&n];return this.is224||(a+=u[o>>28&15]+u[o>>24&15]+u[o>>20&15]+u[o>>16&15]+u[o>>12&15]+u[o>>8&15]+u[o>>4&15]+u[15&o]),a},t.prototype.toString=t.prototype.hex,t.prototype.digest=function(){this.finalize();var t=this.h0,i=this.h1,h=this.h2,r=this.h3,s=this.h4,e=this.h5,n=this.h6,o=this.h7,a=[t>>24&255,t>>16&255,t>>8&255,255&t,i>>24&255,i>>16&255,i>>8&255,255&i,h>>24&255,h>>16&255,h>>8&255,255&h,r>>24&255,r>>16&255,r>>8&255,255&r,s>>24&255,s>>16&255,s>>8&255,255&s,e>>24&255,e>>16&255,e>>8&255,255&e,n>>24&255,n>>16&255,n>>8&255,255&n];return this.is224||a.push(o>>24&255,o>>16&255,o>>8&255,255&o),a},t.prototype.array=t.prototype.digest,t.prototype.arrayBuffer=function(){this.finalize();var t=new ArrayBuffer(this.is224?28:32),i=new DataView(t);return i.setUint32(0,this.h0),i.setUint32(4,this.h1),i.setUint32(8,this.h2),i.setUint32(12,this.h3),i.setUint32(16,this.h4),i.setUint32(20,this.h5),i.setUint32(24,this.h6),this.is224||i.setUint32(28,this.h7),t},i.prototype=new t,i.prototype.finalize=function(){if(t.prototype.finalize.call(this),this.inner){this.inner=!1;var i=this.array();t.call(this,this.is224,this.sharedMemory),this.update(this.oKeyPad),this.update(i),t.prototype.finalize.call(this)}};var B=w();B.sha256=B,B.sha224=w(!0),B.sha256.hmac=_(),B.sha224.hmac=_(!0),o?module.exports=B:(s.sha256=B.sha256,s.sha224=B.sha224,a&&define(function(){return B}))}();
+
+		let monButton = document.querySelector('#creer');
+		monButton.addEventListener('click',function(){
+			let c1 = document.querySelector('#c1').value;
+			let c2 = document.querySelector('#c2').value;
+			let c3 = document.querySelector('#c3').value;
+			let chaine = c1 + c2 +c3;
+			chaine = sha256(chaine);
+			console.log(chaine);
+			document.querySelector('#sha').value = chaine;
+		})
+
+
+	</script>
+
+</html>
