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authorFlorian Dold <florian.dold@gmail.com>2019-03-27 21:01:33 +0100
committerFlorian Dold <florian.dold@gmail.com>2019-03-27 21:01:33 +0100
commitcc97a4dd2a967e1c2273bd5f4c5f49a5bf2e2585 (patch)
tree92c5d88706a6ffc654d1b133618d357890e7096b /node_modules/pbkdf2/lib/async.js
parent3771b4d6b67b34c130f3a9a1a15f42deefdb2eda (diff)
remove node_modules
Diffstat (limited to 'node_modules/pbkdf2/lib/async.js')
-rw-r--r--node_modules/pbkdf2/lib/async.js100
1 files changed, 0 insertions, 100 deletions
diff --git a/node_modules/pbkdf2/lib/async.js b/node_modules/pbkdf2/lib/async.js
deleted file mode 100644
index b20da7c8b..000000000
--- a/node_modules/pbkdf2/lib/async.js
+++ /dev/null
@@ -1,100 +0,0 @@
-var checkParameters = require('./precondition')
-var defaultEncoding = require('./default-encoding')
-var sync = require('./sync')
-var Buffer = require('safe-buffer').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
-}
-
-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) {
- process.nextTick(function () {
- callback(null, out)
- })
- }, function (e) {
- process.nextTick(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') {
- return process.nextTick(function () {
- var out
- try {
- out = sync(password, salt, iterations, keylen, digest)
- } catch (e) {
- return callback(e)
- }
- callback(null, out)
- })
- }
-
- checkParameters(password, salt, iterations, keylen)
- if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')
- if (!Buffer.isBuffer(password)) password = Buffer.from(password, defaultEncoding)
- if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, defaultEncoding)
-
- resolvePromise(checkNative(algo).then(function (resp) {
- if (resp) return browserPbkdf2(password, salt, iterations, keylen, algo)
-
- return sync(password, salt, iterations, keylen, digest)
- }), callback)
-}