summaryrefslogtreecommitdiffstats
path: root/node_modules/evp_bytestokey/index.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/evp_bytestokey/index.js')
-rw-r--r--node_modules/evp_bytestokey/index.js45
1 files changed, 0 insertions, 45 deletions
diff --git a/node_modules/evp_bytestokey/index.js b/node_modules/evp_bytestokey/index.js
deleted file mode 100644
index f9d4757..0000000
--- a/node_modules/evp_bytestokey/index.js
+++ /dev/null
@@ -1,45 +0,0 @@
-var Buffer = require('safe-buffer').Buffer
-var MD5 = require('md5.js')
-
-/* eslint-disable camelcase */
-function EVP_BytesToKey (password, salt, keyBits, ivLen) {
- if (!Buffer.isBuffer(password)) password = Buffer.from(password, 'binary')
- if (salt) {
- if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, 'binary')
- if (salt.length !== 8) throw new RangeError('salt should be Buffer with 8 byte length')
- }
-
- var keyLen = keyBits / 8
- var key = Buffer.alloc(keyLen)
- var iv = Buffer.alloc(ivLen || 0)
- var tmp = Buffer.alloc(0)
-
- while (keyLen > 0 || ivLen > 0) {
- var hash = new MD5()
- hash.update(tmp)
- hash.update(password)
- if (salt) hash.update(salt)
- tmp = hash.digest()
-
- var used = 0
-
- if (keyLen > 0) {
- var keyStart = key.length - keyLen
- used = Math.min(keyLen, tmp.length)
- tmp.copy(key, keyStart, 0, used)
- keyLen -= used
- }
-
- if (used < tmp.length && ivLen > 0) {
- var ivStart = iv.length - ivLen
- var length = Math.min(ivLen, tmp.length - used)
- tmp.copy(iv, ivStart, used, used + length)
- ivLen -= length
- }
- }
-
- tmp.fill(0)
- return { key: key, iv: iv }
-}
-
-module.exports = EVP_BytesToKey