deemix-js/deemix/utils/blowfish.js

!function(r,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(r="undefined"!=typeof globalThis?globalThis:r||self).Blowfish=e()}(this,function(){"use strict";function i(r,e){for(var t=0;t<e.length;t++){var n=e[t];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(r,n.key,n)}}var 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s(r){return r>>>0}function B(r,e){return s(r^e)}function h(r,e){return s(r+e|0)}function E(r,e,t,n){return s(r<<24|e<<16|t<<8|n)}function a(r){return[r>>>24&255,r>>>16&255,r>>>8&255,255&r]}function e(r){return"string"==typeof r}function t(r){return"object"==typeof r&&"byteLength"in r}function b(r){return e(r)||t(r)}function _(e,t){var n=!1;return Object.keys(e).forEach(function(r){e[r]===t&&(n=!0)}),n}function A(r){if(e(r))return function(r){for(var e=new Uint8Array(4*r.length),t=0,n=0;n!==r.length;n++){var i=r.charCodeAt(n);if(i<128)e[t++]=i;else{if(i<2048)e[t++]=i>>6|192;else{if(55295<i&&i<56320){if(++n>=r.length)return console.error("Incomplete surrogate pair"),e.subarray(0,t);var o=r.charCodeAt(n);if(o<56320||57343<o)return console.error("Second surrogate character 0x"+o.toString(16)+" at index "+n+" out of range"),e.subarray(0,t);e[t++]=(i=65536+((1023&i)<<10)+(1023&o))>>18|240,e[t++]=i>>12&63|128}else e[t++]=i>>12|224;e[t++]=i>>6&63|128}e[t++]=63&i|128}}return e.subarray(0,t)}(r);if(t(r))return new Uint8Array(r);throw new Error("Unsupported type")}return function(){function r(r,e,t){if(void 0===e&&(e=d.ECB),void 0===t&&(t=v.PKCS5),!b(r))throw new Error("Key should be a string or an ArrayBuffer / Buffer");if(!_(d,e))throw new Error("Unsupported mode");if(!_(v,t))throw new Error("Unsupported padding");this.mode=e,this.padding=t,this.iv=null,this.p=p.slice(),this.s=[g.slice(),y.slice(),C.slice(),w.slice()],r=function(r){if(72<=r.length)return r;for(var e=[];e.length<72;)for(var t=0;t<r.length;t++)e.push(r[t]);return new Uint8Array(e)}(A(r));for(var n=0,i=0;n<18;n++,i+=4){var o=E(r[i],r[i+1],r[i+2],r[i+3]);this.p[n]=B(this.p[n],o)}for(var s=0,h=0,f=0;f<18;f+=2){var u=this._encryptBlock(s,h),s=u[0],h=u[1];this.p[f]=s,this.p[f+1]=h}for(var a=0;a<4;a++)for(var c=0;c<256;c+=2){var l=this._encryptBlock(s,h);s=l[0],h=l[1],this.s[a][c]=s,this.s[a][c+1]=h}}var e,t,n=r.prototype;return n.setIv=function(r){if(!b(r))throw new Error("IV should be a string or an ArrayBuffer / Buffer");if(8!==(r=A(r)).length)throw new Error("IV should be 8 byte length");this.iv=r},n.encode=function(r){if(!b(r))throw new Error("Encode data should be a string or an ArrayBuffer / Buffer");if(this.mode!==d.ECB&&!this.iv)throw new Error("IV is not set");return r=function(r,e){var t=8-r.length%8;if(8==t&&0<r.length&&e!==v.PKCS5)return r;var n=new Uint8Array(r.length+t),i=[],o=t,s=0;switch(e){case v.PKCS5:s=t;break;case v.ONE_AND_ZEROS:i.push(128),o--;break;case v.SPACES:s=32}for(;0<o;){if(e===v.LAST_BYTE&&1===o){i.push(t);break}i.push(s),o--}return n.set(r),n.set(i,r.length),n}(A(r),this.padding),this.mode===d.ECB?this._encodeECB(r):this.mode===d.CBC?this._encodeCBC(r):void 0},n.decode=function(r,e){if(void 0===e&&(e=o.STRING),!b(r))throw new Error("Decode data should be a string or an ArrayBuffer / Buffer");if(this.mode!==d.ECB&&!this.iv)throw new Error("IV is not set");if((r=A(r)).length%8!=0)throw new Error("Decoded data should be multiple of 8 bytes");switch(this.mode){case d.ECB:r=this._decodeECB(r);break;case d.CBC:r=this._decodeCBC(r)}switch(e){case o.UINT8_ARRAY:return r;case o.STRING:return function(r){for(var e=0,t="";e<r.length;){var n=r[e++];if(127<n)if(191<n&&n<224){if(e>=r.length)return console.error("Incomplete 2-byte sequence"),t;n=(31&n)<<6|63&r[e++]}else if(223<n&&n<240){if(e+1>=r.length)return console.error("Incomplete 3-byte sequence"),t;n=(15&n)<<12|(63&r[e++])<<6|63&r[e++]}else{if(!(239<n&&n<248))return console.error("Unknown multibyte start 0x"+n.toString(16)+" at index "+(e-1)),t;if(e+2>=r.length)return console.error("Incomplete 4-byte sequence"),t;n=(7&n)<<18|(63&r[e++])<<12|(63&r[e++])<<6|63&r[e++]}if(n<=65535)t+=String.fromCharCode(n);else{if(!(n<=1114111))return console.error("Code point 0x"+n.toString(16)+" exceeds UTF-16 reach"),t;n-=65536,t+=String.fromCharCode(n>>10|55296),t+=String.fromCharCode(1023&n|56320)}}return t}(r);default:throw new Error("Unsupported return type")}},n._encryptBlock=function(r,e){for(var t=0;t<16;t++){r=B(r,this.p[t]);var n=[e=B(e,this._f(r)),r];r=n[0],e=n[1]}var i=[e,r];return e=B(e=i[1],this.p[16]),[r=B(r=i[0],this.p[17]),e]},n._decryptBlock=function(r,e){for(var t=17;1<t;t--){r=B(r,this.p[t]);var n=[e=B(e,this._f(r)),r];r=n[0],e=n[1]}var i=[e,r];return e=B(e=i[1],this.p[1]),[r=B(r=i[0],this.p[0]),e]},n._f=function(r){var e=h(this.s[0][r>>>24&255],this.s[1][r>>>16&255]);return h(e=B(e,this.s[2][r>>>8&255]),this.s[3][255&r])},n._encodeECB=function(r){for(var e=new Uint8Array(r.length),t=0;t<r.length;t+=8){var n=E(r[t],r[t+1],r[t+2],r[t+3]),i=E(r[t+4],r[t+5],r[t+6],r[t+7]),o=this._encryptBlock(n,i),n=o[0],i=o[1];e.set(a(n),t),e.set(a(i),t+4)}return e},n._encodeCBC=function(r){for(var e=new Uint8Array(r.length),t=E(this.iv[0],this.iv[1],this.iv[2],this.iv[3]),n=E(this.iv[4],this.iv[5],this.iv[6],this.iv[7]),i=0;i<r.length;i+=8){var o=E(r[i],r[i+1],r[i+2],r[i+3]),s=E(r[i+4],r[i+5],r[i+6],r[i+7]),h=[B(t,o),B(n,s)],h=this._encryptBlock(o=h[0],s=h[1]);o=h[0],n=s=h[1],e.set(a(t=o),i),e.set(a(s),i+4)}return e},n._decodeECB=function(r){for(var e=new Uint8Array(r.length),t=0;t<r.length;t+=8){var n=E(r[t],r[t+1],r[t+2],r[t+3]),i=E(r[t+4],r[t+5],r[t+6],r[t+7]),o=this._decryptBlock(n,i),n=o[0],i=o[1];e.set(a(n),t),e.set(a(i),t+4)}return e},n._decodeCBC=function(r){for(var e=new Uint8Array(r.length),t=E(this.iv[0],this.iv[1],this.iv[2],this.iv[3]),n=E(this.iv[4],this.iv[5],this.iv[6],this.iv[7]),i=0;i<r.length;i+=8){var o=f=E(r[i],r[i+1],r[i+2],r[i+3]),s=u=E(r[i+4],r[i+5],r[i+6],r[i+7]),h=this._decryptBlock(f,u),f=h[0],u=h[1],h=[B(t,f),B(n,u)];u=h[1],t=o,n=s,e.set(a(f=h[0]),i),e.set(a(u),i+4)}return e},e=r,t=[{key:"MODE",get:function(){return d}},{key:"PADDING",get:function(){return v}},{key:"TYPE",get:function(){return o}}],(n=null)&&i(e.prototype,n),t&&i(e,t),r}()});