Son CV dans un terminal web en Javascript! https://terminal-cv.gregandev.fr
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var Buffer = require('safe-buffer').Buffer
var checkParameters = require('./precondition')
var defaultEncoding = require('./default-encoding')
var sync = require('./sync')
var toBuffer = require('./to-buffer')
var ZERO_BUF
var subtle = global.crypto && global.crypto.subtle
var toBrowser = {
sha: 'SHA-1',
'sha-1': 'SHA-1',
sha1: 'SHA-1',
sha256: 'SHA-256',
'sha-256': 'SHA-256',
sha384: 'SHA-384',
'sha-384': 'SHA-384',
'sha-512': 'SHA-512',
sha512: 'SHA-512'
}
var checks = []
function checkNative (algo) {
if (global.process && !global.process.browser) {
return Promise.resolve(false)
}
if (!subtle || !subtle.importKey || !subtle.deriveBits) {
return Promise.resolve(false)
}
if (checks[algo] !== undefined) {
return checks[algo]
}
ZERO_BUF = ZERO_BUF || Buffer.alloc(8)
var prom = browserPbkdf2(ZERO_BUF, ZERO_BUF, 10, 128, algo)
.then(function () {
return true
}).catch(function () {
return false
})
checks[algo] = prom
return prom
}
var nextTick
function getNextTick () {
if (nextTick) {
return nextTick
}
if (global.process && global.process.nextTick) {
nextTick = global.process.nextTick
} else if (global.queueMicrotask) {
nextTick = global.queueMicrotask
} else if (global.setImmediate) {
nextTick = global.setImmediate
} else {
nextTick = global.setTimeout
}
return nextTick
}
function browserPbkdf2 (password, salt, iterations, length, algo) {
return subtle.importKey(
'raw', password, { name: 'PBKDF2' }, false, ['deriveBits']
).then(function (key) {
return subtle.deriveBits({
name: 'PBKDF2',
salt: salt,
iterations: iterations,
hash: {
name: algo
}
}, key, length << 3)
}).then(function (res) {
return Buffer.from(res)
})
}
function resolvePromise (promise, callback) {
promise.then(function (out) {
getNextTick()(function () {
callback(null, out)
})
}, function (e) {
getNextTick()(function () {
callback(e)
})
})
}
module.exports = function (password, salt, iterations, keylen, digest, callback) {
if (typeof digest === 'function') {
callback = digest
digest = undefined
}
digest = digest || 'sha1'
var algo = toBrowser[digest.toLowerCase()]
if (!algo || typeof global.Promise !== 'function') {
getNextTick()(function () {
var out
try {
out = sync(password, salt, iterations, keylen, digest)
} catch (e) {
return callback(e)
}
callback(null, out)
})
return
}
checkParameters(iterations, keylen)
password = toBuffer(password, defaultEncoding, 'Password')
salt = toBuffer(salt, defaultEncoding, 'Salt')
if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')
resolvePromise(checkNative(algo).then(function (resp) {
if (resp) return browserPbkdf2(password, salt, iterations, keylen, algo)
return sync(password, salt, iterations, keylen, digest)
}), callback)
}