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57 lines
1.5 KiB
JavaScript
57 lines
1.5 KiB
JavaScript
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/** Node.js Crypt(3) Library
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Inspired by (and intended to be compatible with) sendanor/crypt3
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see https://github.com/sendanor/node-crypt3
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The key difference is the removal of the dependency on the unix crypt(3) function
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which is not platform independent, and requires compilation. Instead, a pure
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javascript version is used.
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*/
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var crypt = require('unix-crypt-td-js'),
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crypto = require('crypto');
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function createSalt(type) {
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type = type || 'sha512';
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switch (type) {
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case 'md5':
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return '$1$' + crypto.randomBytes(10).toString('base64');
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case 'blowfish':
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return '$2a$' + crypto.randomBytes(10).toString('base64');
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case 'sha256':
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return '$5$' + crypto.randomBytes(10).toString('base64');
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case 'sha512':
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return '$6$' + crypto.randomBytes(10).toString('base64');
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default:
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throw new TypeError('Unknown salt type at crypt3.createSalt: ' + type);
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}
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}
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function crypt3(key, salt) {
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salt = salt || createSalt();
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return crypt(key, salt);
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}
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/** Crypt(3) password and data encryption.
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* @param {string} key user's typed password
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* @param {string} salt Optional salt, for example SHA-512 use "$6$salt$".
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* @returns {string} A generated hash in format $id$salt$encrypted
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* @see https://en.wikipedia.org/wiki/Crypt_(C)
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*/
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module.exports = crypt3;
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/** Create salt
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* @param {string} type The type of salt: md5, blowfish (only some linux distros), sha256 or sha512. Default is sha512.
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* @returns {string} Generated salt string
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*/
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module.exports.createSalt = createSalt;
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