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10 lines
12 KiB
JavaScript
10 lines
12 KiB
JavaScript
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/**
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* A JavaScript implementation of the SHA family of hashes - defined in FIPS PUB 180-4, FIPS PUB 202,
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* and SP 800-185 - as well as the corresponding HMAC implementation as defined in FIPS PUB 198-1.
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*
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* Copyright 2008-2020 Brian Turek, 1998-2009 Paul Johnston & Contributors
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* Distributed under the BSD License
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* See http://caligatio.github.com/jsSHA/ for more information
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*/
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const t="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";function n(t,n,r,i){let s,e,o;const h=n||[0],u=(r=r||0)>>>3,c=-1===i?3:0;for(s=0;s<t.length;s+=1)o=s+u,e=o>>>2,h.length<=e&&h.push(0),h[e]|=t[s]<<8*(c+i*(o%4));return{value:h,binLen:8*t.length+r}}function r(r,i,s){switch(i){case"UTF8":case"UTF16BE":case"UTF16LE":break;default:throw new Error("encoding must be UTF8, UTF16BE, or UTF16LE")}switch(r){case"HEX":return function(t,n,r){return function(t,n,r,i){let s,e,o,h;if(0!=t.length%2)throw new Error("String of HEX type must be in byte increments");const u=n||[0],c=(r=r||0)>>>3,f=-1===i?3:0;for(s=0;s<t.length;s+=2){if(e=parseInt(t.substr(s,2),16),isNaN(e))throw new Error("String of HEX type contains invalid characters");for(h=(s>>>1)+c,o=h>>>2;u.length<=o;)u.push(0);u[o]|=e<<8*(f+i*(h%4))}return{value:u,binLen:4*t.length+r}}(t,n,r,s)};case"TEXT":return function(t,n,r){return function(t,n,r,i,s){let e,o,h,u,c,f,a,w,l=0;const A=r||[0],E=(i=i||0)>>>3;if("UTF8"===n)for(a=-1===s?3:0,h=0;h<t.length;h+=1)for(e=t.charCodeAt(h),o=[],128>e?o.push(e):2048>e?(o.push(192|e>>>6),o.push(128|63&e)):55296>e||57344<=e?o.push(224|e>>>12,128|e>>>6&63,128|63&e):(h+=1,e=65536+((1023&e)<<10|1023&t.charCodeAt(h)),o.push(240|e>>>18,128|e>>>12&63,128|e>>>6&63,128|63&e)),u=0;u<o.length;u+=1){for(f=l+E,c=f>>>2;A.length<=c;)A.push(0);A[c]|=o[u]<<8*(a+s*(f%4)),l+=1}else for(a=-1===s?2:0,w="UTF16LE"===n&&1!==s||"UTF16LE"!==n&&1===s,h=0;h<t.length;h+=1){for(e=t.charCodeAt(h),!0===w&&(u=255&e,e=u<<8|e>>>8),f=l+E,c=f>>>2;A.length<=c;)A.push(0);A[c]|=e<<8*(a+s*(f%4)),l+=2}return{value:A,binLen:8*l+i}}(t,i,n,r,s)};case"B64":return function(n,r,i){return function(n,r,i,s){let e,o,h,u,c,f,a,w=0;const l=r||[0],A=(i=i||0)>>>3,E=-1===s?3:0,b=n.indexOf("=");if(-1===n.search(/^[a-zA-Z0-9=+/]+$/))throw new Error("Invalid character in base-64 string");if(n=n.replace(/=/g,""),-1!==b&&b<n.length)throw new Error("Invalid '=' found in base-64 string");for(o=0;o<n.length;o+=4){for(c=n.substr(o,4),u=0,h=0;h<c.length;h+=1)e=t.indexOf(c.charAt(h)),u|=e<<18-6*h;for(h=0;h<c.length-1;h+=1){for(a=w+A,f=a>>>2;l.length<=f;)l.push(0);l[f]|=(u>>>16-8*h&255)<<8*(E+s*(a%4)),w+=1}}return{value:l,binLen:8*w+i}}(n,r,i,s)};case"BYTES":return function(t,n,r){return function(t,n,r,i){let s,e,o,h;const u=n||[0],c=(r=r||0)>>>3,f=-1===i?3:0;for(e=0;e<t.length;e+=1)s=t.charCodeAt(e),h=e+c,o=h>>>2,u.length<=o&&u.push(0),u[o]|=s<<8*(f+i*(h%4));return{value:u,binLen:8*t.length+r}}(t,n,r,s)};case"ARRAYBUFFER":try{new ArrayBuffer(0)}catch(t){throw new Error("ARRAYBUFFER not supported by this environment")}return function(t,r,i){return function(t,r,i,s){return n(new Uint8Array(t),r,i,s)}(t,r,i,s)};case"UINT8ARRAY":try{new Uint8Array(0)}catch(t){throw new Error("UINT8ARRAY not supported by this environment")}return function(t,r,i){return n(t,r,i,s)};default:throw new Error("format must be HEX, TEXT, B64, BYTES, ARRAYBUFFER, or UINT8ARRAY")}}function i(n,r,i,s){switch(n){case"HEX":return function(t){return function(t,n,r,i){let s,e,o="";const h=n/8,u=-1===r?3:0;for(s=0;s<h;s+=1)e=t[s>>>2]>>>8*(u+r*(s%4)),o+="0123456789abcdef".charAt(e>>>4&15)+"0123456789abcdef".charAt(15&e);return i.outputUpper?o.toUpperCase():o}(t,r,i,s)};case"B64":return function(n){return function(n,r,i,s){let e,o,h,u,c,f="";const a=r/8,w=-1===i?3:0;for(e=0;e<a;e+=3)for(u=e+1<a?n[e+1>>>2]:0,c=e+2<a?n[e+2>>>2]:0,h=(n[e>>>2]>>>8*(w+i*(e%4))&255)<<16|(u>>>8*(w+i*((e+1)%4))&255)<<8|c>>>8*(w+i*((e+2)%4))&255,o=0;o<4;o+=1)f+=8*e+6*o<=r?t.charAt(h>>>6*(3-o)&63):s.b64Pad;return f}(n,r,i,s)};case"BYTES":return function(t){return function(t,n,r){let i,s,e="";const o=n/8,h=-1===r?3:0;for(i=0;i<o;i+=1)s=t[i>>>2]>>>8*(h+r*(i%4))&255,e+=String.fromCharCode(s);return e}(t,r,i)};case"ARRAYBUFFER":try{new ArrayBuffer(0)}catch(t){throw new Error("ARRAYBUFFER not supported by this environment")}return function(t){return function(t,n,r){let i;const s=n/8,e=new ArrayBuffer(s),o=new Uint8Array(e),h=-1===r?3:0;for(i=0;i<s;i+=1)o[i]=t[i>>>2]>>>8*(h+r*(i%4))&255;return e}(t,r,i)};case"UINT8ARRAY":try{new Uint8Array(0)}catch(t){throw
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