cordova-plugin-mfp/node_modules/jssha/src/sha256.js

IBM MobileFirst Platform Foundation Cordova Plugin

/*
 A JavaScript implementation of the SHA family of hashes, as
 defined in FIPS PUB 180-4 and FIPS PUB 202, as well as the corresponding
 HMAC implementation as defined in FIPS PUB 198a

 Copyright Brian Turek 2008-2016
 Distributed under the BSD License
 See http://caligatio.github.com/jsSHA/ for more information

 Several functions taken from Paul Johnston
*/
'use strict';(function(I){function w(c,a,d){var g=0,f=[],b=0,e,h,n,k,m,t,y,p,l=!1,q=[],r=[],u,z=!1;d=d||{};e=d.encoding||"UTF8";u=d.numRounds||1;n=A(a,e);if(u!==parseInt(u,10)||1>u)throw Error("numRounds must a integer >= 1");if(0===c.lastIndexOf("SHA-",0))if(t=function(a,b){return B(a,b,c)},y=function(a,b,g,d){var f,e;if("SHA-224"===c||"SHA-256"===c)f=(b+65>>>9<<4)+15,e=16;else throw Error("Unexpected error in SHA-2 implementation");for(;a.length<=f;)a.push(0);a[b>>>5]|=128<<24-b%32;b=b+g;a[f]=b&
4294967295;a[f-1]=b/4294967296|0;g=a.length;for(b=0;b<g;b+=e)d=B(a.slice(b,b+e),d,c);if("SHA-224"===c)a=[d[0],d[1],d[2],d[3],d[4],d[5],d[6]];else if("SHA-256"===c)a=d;else throw Error("Unexpected error in SHA-2 implementation");return a},p=function(a){return a.slice()},"SHA-224"===c)m=512,k=224;else if("SHA-256"===c)m=512,k=256;else throw Error("Chosen SHA variant is not supported");else throw Error("Chosen SHA variant is not supported");h=x(c);this.setHMACKey=function(a,b,d){var f;if(!0===l)throw Error("HMAC key already set");
if(!0===z)throw Error("Cannot set HMAC key after calling update");e=(d||{}).encoding||"UTF8";b=A(b,e)(a);a=b.binLen;b=b.value;f=m>>>3;d=f/4-1;if(f<a/8){for(b=y(b,a,0,x(c));b.length<=d;)b.push(0);b[d]&=4294967040}else if(f>a/8){for(;b.length<=d;)b.push(0);b[d]&=4294967040}for(a=0;a<=d;a+=1)q[a]=b[a]^909522486,r[a]=b[a]^1549556828;h=t(q,h);g=m;l=!0};this.update=function(a){var c,d,e,k=0,p=m>>>5;c=n(a,f,b);a=c.binLen;d=c.value;c=a>>>5;for(e=0;e<c;e+=p)k+m<=a&&(h=t(d.slice(e,e+p),h),k+=m);g+=k;f=d.slice(k>>>
5);b=a%m;z=!0};this.getHash=function(a,d){var e,m,n,t;if(!0===l)throw Error("Cannot call getHash after setting HMAC key");n=C(d);switch(a){case "HEX":e=function(a){return D(a,k,n)};break;case "B64":e=function(a){return E(a,k,n)};break;case "BYTES":e=function(a){return F(a,k)};break;case "ARRAYBUFFER":try{m=new ArrayBuffer(0)}catch(v){throw Error("ARRAYBUFFER not supported by this environment");}e=function(a){return G(a,k)};break;default:throw Error("format must be HEX, B64, BYTES, or ARRAYBUFFER");
}t=y(f.slice(),b,g,p(h));for(m=1;m<u;m+=1)t=y(t,k,0,x(c));return e(t)};this.getHMAC=function(a,d){var e,n,q,u;if(!1===l)throw Error("Cannot call getHMAC without first setting HMAC key");q=C(d);switch(a){case "HEX":e=function(a){return D(a,k,q)};break;case "B64":e=function(a){return E(a,k,q)};break;case "BYTES":e=function(a){return F(a,k)};break;case "ARRAYBUFFER":try{e=new ArrayBuffer(0)}catch(v){throw Error("ARRAYBUFFER not supported by this environment");}e=function(a){return G(a,k)};break;default:throw Error("outputFormat must be HEX, B64, BYTES, or ARRAYBUFFER");
}n=y(f.slice(),b,g,p(h));u=t(r,x(c));u=y(n,k,m,u);return e(u)}}function l(){}function J(c,a,d){var g=c.length,f,b,e,h,n;a=a||[0];d=d||0;n=d>>>3;if(0!==g%2)throw Error("String of HEX type must be in byte increments");for(f=0;f<g;f+=2){b=parseInt(c.substr(f,2),16);if(isNaN(b))throw Error("String of HEX type contains invalid characters");h=(f>>>1)+n;for(e=h>>>2;a.length<=e;)a.push(0);a[e]|=b<<8*(3-h%4)}return{value:a,binLen:4*g+d}}function K(c,a,d){var g=[],f,b,e,h,g=a||[0];d=d||0;b=d>>>3;for(f=0;f<
c.length;f+=1)a=c.charCodeAt(f),h=f+b,e=h>>>2,g.length<=e&&g.push(0),g[e]|=a<<8*(3-h%4);return{value:g,binLen:8*c.length+d}}function L(c,a,d){var g=[],f=0,b,e,h,n,k,m,g=a||[0];d=d||0;a=d>>>3;if(-1===c.search(/^[a-zA-Z0-9=+\/]+$/))throw Error("Invalid character in base-64 string");e=c.indexOf("=");c=c.replace(/\=/g,"");if(-1!==e&&e<c.length)throw Error("Invalid '=' found in base-64 string");for(e=0;e<c.length;e+=4){k=c.substr(e,4);for(h=n=0;h<k.length;h+=1)b="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".indexOf(k[h]),
n|=b<<18-6*h;for(h=0;h<k.length-1;h+=1){m=f+a;for(b=m>>>2;g.length<=b;)g.push(0);g[b]|=(n>>>16-8*h&255)<<8*(3-m%4);f+=1}}return{value:g,binLen:8*f+d}}function M(c,a,d){var g=[],f,b,e,g=a||[0];d=d||0;f=d>>>3;for(a=0;a<c.byteLength;a+=1)e=a+f,b=e>>>2,g.length<=b&&g.push(0),g[b]|=c[a]<<8*(3-e%4);return{value:g,binLen:8*c.byteLength+d}}function D(c,a,d){var g="";a/=8;var f,b;for(f=0;f<a;f+=1)b=c[f>>>2]>>>8*(3-f%4),g+="0123456789abcdef".charAt(b>>>4&15)+"0123456789abcdef".charAt(b&15);return d.outputUpper?
g.toUpperCase():g}function E(c,a,d){var g="",f=a/8,b,e,h;for(b=0;b<f;b+=3)for(e=b+1<f?c[b+1>>>2]:0,h=b+2<f?c[b+2>>>2]:0,h=(c[b>>>2]>>>8*(3-b%4)&255)<<16|(e>>>8*(3-(b+1)%4)&255)<<8|h>>>8*(3-(b+2)%4)&255,e=0;4>e;e+=1)8*b+6*e<=a?g+="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".charAt(h>>>6*(3-e)&63):g+=d.b64Pad;return g}function F(c,a){var d="",g=a/8,f,b;for(f=0;f<g;f+=1)b=c[f>>>2]>>>8*(3-f%4)&255,d+=String.fromCharCode(b);return d}function G(c,a){var d=a/8,g,f=new ArrayBuffer(d);
for(g=0;g<d;g+=1)f[g]=c[g>>>2]>>>8*(3-g%4)&255;return f}function C(c){var a={outputUpper:!1,b64Pad:"=",shakeLen:-1};c=c||{};a.outputUpper=c.outputUpper||!1;!0===c.hasOwnProperty("b64Pad")&&(a.b64Pad=c.b64Pad);if("boolean"!==typeof a.outputUpper)throw Error("Invalid outputUpper formatting option");if("string"!==typeof a.b64Pad)throw Error("Invalid b64Pad formatting option");return a}function A(c,a){var d;switch(a){case "UTF8":case "UTF16BE":case "UTF16LE":break;default:throw Error("encoding must be UTF8, UTF16BE, or UTF16LE");
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a||"UTF16LE"===a)for(k=0;k<c.length;k+=1){b=c.charCodeAt(k);"UTF16LE"===a&&(m=b&255,b=m<<8|b>>>8);p=n+t;for(l=p>>>2;e.length<=l;)e.push(0);e[l]|=b<<8*(2-p%4);n+=2}return{value:e,binLen:8*n+d}};break;case "B64":d=L;break;case "BYTES":d=K;break;case "ARRAYBUFFER":try{d=new ArrayBuffer(0)}catch(g){throw Error("ARRAYBUFFER not supported by this environment");}d=M;break;default:throw Error("format must be HEX, TEXT, B64, BYTES, or ARRAYBUFFER");}return d}function r(c,a){return c>>>a|c<<32-a}function N(c,
a,d){return c&a^~c&d}function O(c,a,d){return c&a^c&d^a&d}function P(c){return r(c,2)^r(c,13)^r(c,22)}function Q(c){return r(c,6)^r(c,11)^r(c,25)}function R(c){return r(c,7)^r(c,18)^c>>>3}function S(c){return r(c,17)^r(c,19)^c>>>10}function T(c,a){var d=(c&65535)+(a&65535);return((c>>>16)+(a>>>16)+(d>>>16)&65535)<<16|d&65535}function U(c,a,d,g){var f=(c&65535)+(a&65535)+(d&65535)+(g&65535);return((c>>>16)+(a>>>16)+(d>>>16)+(g>>>16)+(f>>>16)&65535)<<16|f&65535}function V(c,a,d,g,f){var b=(c&65535)+
(a&65535)+(d&65535)+(g&65535)+(f&65535);return((c>>>16)+(a>>>16)+(d>>>16)+(g>>>16)+(f>>>16)+(b>>>16)&65535)<<16|b&65535}function x(c){var a=[],d;if(0===c.lastIndexOf("SHA-",0))switch(a=[3238371032,914150663,812702999,4144912697,4290775857,1750603025,1694076839,3204075428],d=[1779033703,3144134277,1013904242,2773480762,1359893119,2600822924,528734635,1541459225],c){case "SHA-224":break;case "SHA-256":a=d;break;case "SHA-384":a=[new l,new l,new l,new l,new l,new l,new l,new l];break;case "SHA-512":a=
[new l,new l,new l,new l,new l,new l,new l,new l];break;default:throw Error("Unknown SHA variant");}else throw Error("No SHA variants supported");return a}function B(c,a,d){var g,f,b,e,h,n,k,m,l,r,p,w,q,x,u,z,A,B,C,D,E,F,v=[],G;if("SHA-224"===d||"SHA-256"===d)r=64,w=1,F=Number,q=T,x=U,u=V,z=R,A=S,B=P,C=Q,E=O,D=N,G=H;else throw Error("Unexpected error in SHA-2 implementation");d=a[0];g=a[1];f=a[2];b=a[3];e=a[4];h=a[5];n=a[6];k=a[7];for(p=0;p<r;p+=1)16>p?(l=p*w,m=c.length<=l?0:c[l],l=c.length<=l+1?
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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];"function"===typeof define&&
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