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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/pbkdf2/lib/sync.js
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api, login, auth
Diffstat (limited to 'node_modules/pbkdf2/lib/sync.js')
-rw-r--r--node_modules/pbkdf2/lib/sync.js52
1 files changed, 52 insertions, 0 deletions
diff --git a/node_modules/pbkdf2/lib/sync.js b/node_modules/pbkdf2/lib/sync.js
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+++ b/node_modules/pbkdf2/lib/sync.js
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+var sizes = {
+ md5: 16,
+ sha1: 20,
+ sha224: 28,
+ sha256: 32,
+ sha384: 48,
+ sha512: 64,
+ rmd160: 20,
+ ripemd160: 20
+}
+
+var createHmac = require('create-hmac')
+var Buffer = require('safe-buffer').Buffer
+
+var checkParameters = require('./precondition')
+var defaultEncoding = require('./default-encoding')
+var toBuffer = require('./to-buffer')
+
+function pbkdf2 (password, salt, iterations, keylen, digest) {
+ checkParameters(iterations, keylen)
+ password = toBuffer(password, defaultEncoding, 'Password')
+ salt = toBuffer(salt, defaultEncoding, 'Salt')
+
+ digest = digest || 'sha1'
+
+ var DK = Buffer.allocUnsafe(keylen)
+ var block1 = Buffer.allocUnsafe(salt.length + 4)
+ salt.copy(block1, 0, 0, salt.length)
+
+ var destPos = 0
+ var hLen = sizes[digest]
+ var l = Math.ceil(keylen / hLen)
+
+ for (var i = 1; i <= l; i++) {
+ block1.writeUInt32BE(i, salt.length)
+
+ var T = createHmac(digest, password).update(block1).digest()
+ var U = T
+
+ for (var j = 1; j < iterations; j++) {
+ U = createHmac(digest, password).update(U).digest()
+ for (var k = 0; k < hLen; k++) T[k] ^= U[k]
+ }
+
+ T.copy(DK, destPos)
+ destPos += hLen
+ }
+
+ return DK
+}
+
+module.exports = pbkdf2