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30 lines
625 B
30 lines
625 B
'use strict' |
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var inherits = require('inherits') |
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var MD5 = require('md5.js') |
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var RIPEMD160 = require('ripemd160') |
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var sha = require('sha.js') |
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var Base = require('cipher-base') |
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function Hash (hash) { |
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Base.call(this, 'digest') |
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this._hash = hash |
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} |
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inherits(Hash, Base) |
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Hash.prototype._update = function (data) { |
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this._hash.update(data) |
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} |
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Hash.prototype._final = function () { |
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return this._hash.digest() |
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} |
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module.exports = function createHash (alg) { |
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alg = alg.toLowerCase() |
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if (alg === 'md5') return new MD5() |
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if (alg === 'rmd160' || alg === 'ripemd160') return new RIPEMD160() |
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return new Hash(sha(alg)) |
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}
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