otpauth/dist/otpauth.cjs.min.js

One Time Password (HOTP/TOTP) library for Node.js and browsers

/*! otpauth v6.0.0 | (c) Héctor Molinero Fernández <hector@molinero.dev> | MIT | https://github.com/hectorm/otpauth */
/*! sjcl v1.0.8 | (c) bitwiseshiftleft | (BSD-2-Clause OR GPL-2.0-only) | https://github.com/bitwiseshiftleft/sjcl */
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;for(this._baseHash=[new e,new e],t.length>n&&(t=e.hash(t)),r=0;r<n;r++)i[0][r]=909522486^t[r],i[1][r]=1549556828^t[r];this._baseHash[0].update(i[0]),this._baseHash[1].update(i[1]),this._resultHash=new e(this._baseHash[0])},sjcl.misc.hmac.prototype.encrypt=sjcl.misc.hmac.prototype.mac=function(t){if(this._updated)throw new sjcl.exception.invalid("encrypt on already updated hmac called!");return this.update(t),this.digest(t)},sjcl.misc.hmac.prototype.reset=function(){this._resultHash=new this._hash(this._baseHash[0]),this._updated=!1},sjcl.misc.hmac.prototype.update=function(t){this._updated=!0,this._resultHash.update(t)},sjcl.misc.hmac.prototype.digest=function(){var t=this._resultHash.finalize(),e=new this._hash(this._baseHash[1]).update(t).finalize();return this.reset(),e},InternalUtils.isNode){var NodeBuffer=InternalUtils.globalThis.Buffer,NodeCrypto=InternalUtils.nodeRequire("crypto"),nodeBufferFromArrayBuffer,nodeBufferToArrayBuffer
;nodeBufferFromArrayBuffer="function"==typeof NodeBuffer.from?NodeBuffer.from:function(t){for(var e=new NodeBuffer(t.byteLength),r=new Uint8Array(t),i=0;i<r.length;i++)e[i]=r[i];return e},nodeBufferToArrayBuffer=NodeBuffer.prototype instanceof Uint8Array?function(t){return t.buffer}:function(t){for(var e=new Uint8Array(t.length),r=0;r<e.length;r++)e[r]=t[r];return e.buffer},randomBytes=function(t){var e=NodeCrypto.randomBytes(t);return nodeBufferToArrayBuffer(e)},hmacDigest=function(t,e,r){var i=NodeCrypto.createHmac(t,nodeBufferFromArrayBuffer(e));return i.update(nodeBufferFromArrayBuffer(r)),nodeBufferToArrayBuffer(i.digest())}}else{var BrowserCrypto=InternalUtils.globalThis.crypto||InternalUtils.globalThis.msCrypto,getRandomValues;void 0!==BrowserCrypto&&"function"==typeof BrowserCrypto.getRandomValues?getRandomValues=function(t){BrowserCrypto.getRandomValues(t)}:(InternalUtils.console.warn("Cryptography API not available, falling back to 'Math.random'..."),getRandomValues=function(t){
for(var e=0;e<t.length;e++)t[e]=Math.floor(256*Math.random())}),randomBytes=function(t){var e=new Uint8Array(t);return getRandomValues(e),e.buffer},hmacDigest=function(t,e,r){var i=sjcl.hash[t.toLowerCase()];if(void 0===i)throw new TypeError("Unknown hash function");var n=new sjcl.misc.hmac(sjcl.codec.arrayBuffer.toBits(e),i);return n.update(sjcl.codec.arrayBuffer.toBits(r)),sjcl.codec.arrayBuffer.fromBits(n.digest(),!1)}}var Crypto={randomBytes:randomBytes,hmacDigest:hmacDigest},Secret=function(){function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},r=e.buffer,i=e.size,n=void 0===i?20:i;_classCallCheck(this,t),this.buffer=void 0===r?Crypto.randomBytes(n):r}return _createClass(t,[{key:"raw",get:function(){return Object.defineProperty(this,"raw",{enumerable:!0,configurable:!0,writable:!0,value:Utils.raw.fromBuf(this.buffer)}),this.raw}},{key:"b32",get:function(){return Object.defineProperty(this,"b32",{enumerable:!0,configurable:!0,writable:!0,value:Utils.b32.fromBuf(this.buffer)}),
this.b32}},{key:"hex",get:function(){return Object.defineProperty(this,"hex",{enumerable:!0,configurable:!0,writable:!0,value:Utils.hex.fromBuf(this.buffer)}),this.hex}}],[{key:"fromRaw",value:function(e){return new t({buffer:Utils.raw.toBuf(e)})}},{key:"fromB32",value:function(e){return new t({buffer:Utils.b32.toBuf(e)})}},{key:"fromHex",value:function(e){return new t({buffer:Utils.hex.toBuf(e)})}}]),t}(),defaults={issuer:"",label:"OTPAuth",algorithm:"SHA1",digits:6,counter:0,period:30,window:1},HOTP=function(){function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},r=e.issuer,i=void 0===r?defaults.issuer:r,n=e.label,o=void 0===n?defaults.label:n,a=e.secret,s=void 0===a?new Secret:a,l=e.algorithm,h=void 0===l?defaults.algorithm:l,u=e.digits,f=void 0===u?defaults.digits:u,c=e.counter,d=void 0===c?defaults.counter:c;_classCallCheck(this,t),this.issuer=i,this.label=o,this.secret="string"==typeof s?Secret.fromB32(s):s,this.algorithm=h,this.digits=f,this.counter=d}return _createClass(t,[{
key:"generate",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},r=e.counter,i=void 0===r?this.counter++:r;return t.generate({secret:this.secret,algorithm:this.algorithm,digits:this.digits,counter:i})}},{key:"validate",value:function(e){var r=e.token,i=e.counter,n=void 0===i?this.counter:i,o=e.window;return t.validate({token:Utils.pad(r,this.digits),secret:this.secret,algorithm:this.algorithm,counter:n,window:o})}},{key:"toString",value:function(){var t=encodeURIComponent;return"otpauth://hotp/"+"".concat(this.issuer.length>0?"".concat(t(this.issuer),":").concat(t(this.label),"?issuer=").concat(t(this.issuer),"&"):"".concat(t(this.label),"?"))+"secret=".concat(t(this.secret.b32),"&")+"algorithm=".concat(t(this.algorithm),"&")+"digits=".concat(t(this.digits),"&")+"counter=".concat(t(this.counter))}}],[{key:"generate",value:function(t){
var e=t.secret,r=t.algorithm,i=void 0===r?defaults.algorithm:r,n=t.digits,o=void 0===n?defaults.digits:n,a=t.counter,s=void 0===a?defaults.counter:a,l=new Uint8Array(Crypto.hmacDigest(i,e.buffer,Utils.uint.toBuf(s))),h=15&l[l.byteLength-1],u=((127&l[h])<<24|(255&l[h+1])<<16|(255&l[h+2])<<8|255&l[h+3])%Math.pow(10,o);return Utils.pad(u,o)}},{key:"validate",value:function(e){for(var r=e.token,i=e.secret,n=e.algorithm,o=e.counter,a=void 0===o?defaults.counter:o,s=e.window,l=void 0===s?defaults.window:s,h=a-l;h<=a+l;++h){if(r===t.generate({secret:i,algorithm:n,digits:r.length,counter:h}))return h-a}return null}}]),t}(),TOTP=function(){function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},r=e.issuer,i=void 0===r?defaults.issuer:r,n=e.label,o=void 0===n?defaults.label:n,a=e.secret,s=void 0===a?new Secret:a,l=e.algorithm,h=void 0===l?defaults.algorithm:l,u=e.digits,f=void 0===u?defaults.digits:u,c=e.period,d=void 0===c?defaults.period:c;_classCallCheck(this,t),this.issuer=i,this.label=o,
this.secret="string"==typeof s?Secret.fromB32(s):s,this.algorithm=h,this.digits=f,this.period=d}return _createClass(t,[{key:"generate",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},r=e.timestamp,i=void 0===r?Date.now():r;return t.generate({secret:this.secret,algorithm:this.algorithm,digits:this.digits,period:this.period,timestamp:i})}},{key:"validate",value:function(e){var r=e.token,i=e.timestamp,n=e.window;return t.validate({token:Utils.pad(r,this.digits),secret:this.secret,algorithm:this.algorithm,period:this.period,timestamp:i,window:n})}},{key:"toString",value:function(){var t=encodeURIComponent;return"otpauth://totp/"+"".concat(this.issuer.length>0?"".concat(t(this.issuer),":").concat(t(this.label),"?issuer=").concat(t(this.issuer),"&"):"".concat(t(this.label),"?"))+"secret=".concat(t(this.secret.b32),"&")+"algorithm=".concat(t(this.algorithm),"&")+"digits=".concat(t(this.digits),"&")+"period=".concat(t(this.period))}}],[{key:"generate",value:function(t){
var e=t.secret,r=t.algorithm,i=t.digits,n=t.period,o=void 0===n?defaults.period:n,a=t.timestamp,s=void 0===a?Date.now():a;return HOTP.generate({secret:e,algorithm:r,digits:i,counter:Math.floor(s/1e3/o)})}},{key:"validate",value:function(t){var e=t.token,r=t.secret,i=t.algorithm,n=t.period,o=void 0===n?defaults.period:n,a=t.timestamp,s=void 0===a?Date.now():a,l=t.window;return HOTP.validate({token:e,secret:r,algorithm:i,counter:Math.floor(s/1e3/o),window:l})}}]),t}(),OTPURI_PARAMS=["issuer","secret","algorithm","digits","counter","period"],OTPURI_REGEX=new RegExp("^otpauth:\\/\\/([ht]otp)\\/(.+)\\?((?:&?(?:".concat(OTPURI_PARAMS.join("|"),")=[^&]+)+)$"),"i"),SECRET_REGEX=/^[2-7A-Z]+=*$/i,ALGORITHM_REGEX=/^SHA(?:1|256|512)$/i,INTEGER_REGEX=/^[+-]?\d+$/,POSITIVE_INTEGER_REGEX=/^\+?[1-9]\d*$/,URI=function(){function t(){_classCallCheck(this,t)}return _createClass(t,null,[{key:"parse",value:function(t){var e;try{e=t.match(OTPURI_REGEX)}catch(t){}if(!Array.isArray(e))throw new URIError("Invalid URI format")
;var r,i=e[1].toLowerCase(),n=e[2].split(/:(.+)/,2).map(decodeURIComponent),o=e[3].split("&").reduce((function(t,e){var r=e.split(/=(.+)/,2).map(decodeURIComponent),i=r[0].toLowerCase(),n=r[1],o=t;return o[i]=n,o}),{}),a={};if("hotp"===i){if(r=HOTP,void 0===o.counter||!INTEGER_REGEX.test(o.counter))throw new TypeError("Missing or invalid 'counter' parameter");a.counter=parseInt(o.counter,10)}else{if("totp"!==i)throw new TypeError("Unknown OTP type");if(r=TOTP,void 0!==o.period){if(!POSITIVE_INTEGER_REGEX.test(o.period))throw new TypeError("Invalid 'period' parameter");a.period=parseInt(o.period,10)}}if(2===n.length)if(a.label=n[1],void 0===o.issuer)a.issuer=n[0];else{if(o.issuer!==n[0])throw new TypeError("Invalid 'issuer' parameter");a.issuer=o.issuer}else a.label=n[0],void 0!==o.issuer&&(a.issuer=o.issuer);if(void 0===o.secret||!SECRET_REGEX.test(o.secret))throw new TypeError("Missing or invalid 'secret' parameter");if(a.secret=new Secret({buffer:Utils.b32.toBuf(o.secret)}),void 0!==o.algorithm){
if(!ALGORITHM_REGEX.test(o.algorithm))throw new TypeError("Invalid 'algorithm' parameter");a.algorithm=o.algorithm}if(void 0!==o.digits){if(!POSITIVE_INTEGER_REGEX.test(o.digits))throw new TypeError("Invalid 'digits' parameter");a.digits=parseInt(o.digits,10)}return new r(a)}},{key:"stringify",value:function(t){if(t instanceof HOTP||t instanceof TOTP)return t.toString();throw new TypeError("Invalid 'HOTP/TOTP' object")}}]),t}(),version="6.0.0";exports.HOTP=HOTP,exports.Secret=Secret,exports.TOTP=TOTP,exports.URI=URI,exports.Utils=Utils,exports.version=version;
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