mirror of
https://github.com/musix-org/musix-oss
synced 2024-12-23 09:53:17 +00:00
46 lines
1.6 KiB
Markdown
46 lines
1.6 KiB
Markdown
|
Port of the OpenBSD `bcrypt_pbkdf` function to pure Javascript. `npm`-ified
|
||
|
|
version of [Devi Mandiri's port](https://github.com/devi/tmp/blob/master/js/bcrypt_pbkdf.js),
|
||
|
|
with some minor performance improvements. The code is copied verbatim (and
|
||
|
|
un-styled) from Devi's work.
|
||
|
|
|
||
|
|
This product includes software developed by Niels Provos.
|
||
|
|
|
||
|
|
## API
|
||
|
|
|
||
|
|
### `bcrypt_pbkdf.pbkdf(pass, passlen, salt, saltlen, key, keylen, rounds)`
|
||
|
|
|
||
|
|
Derive a cryptographic key of arbitrary length from a given password and salt,
|
||
|
|
using the OpenBSD `bcrypt_pbkdf` function. This is a combination of Blowfish and
|
||
|
|
SHA-512.
|
||
|
|
|
||
|
|
See [this article](http://www.tedunangst.com/flak/post/bcrypt-pbkdf) for
|
||
|
|
further information.
|
||
|
|
|
||
|
|
Parameters:
|
||
|
|
|
||
|
|
* `pass`, a Uint8Array of length `passlen`
|
||
|
|
* `passlen`, an integer Number
|
||
|
|
* `salt`, a Uint8Array of length `saltlen`
|
||
|
|
* `saltlen`, an integer Number
|
||
|
|
* `key`, a Uint8Array of length `keylen`, will be filled with output
|
||
|
|
* `keylen`, an integer Number
|
||
|
|
* `rounds`, an integer Number, number of rounds of the PBKDF to run
|
||
|
|
|
||
|
|
### `bcrypt_pbkdf.hash(sha2pass, sha2salt, out)`
|
||
|
|
|
||
|
|
Calculate a Blowfish hash, given SHA2-512 output of a password and salt. Used as
|
||
|
|
part of the inner round function in the PBKDF.
|
||
|
|
|
||
|
|
Parameters:
|
||
|
|
|
||
|
|
* `sha2pass`, a Uint8Array of length 64
|
||
|
|
* `sha2salt`, a Uint8Array of length 64
|
||
|
|
* `out`, a Uint8Array of length 32, will be filled with output
|
||
|
|
|
||
|
|
## License
|
||
|
|
|
||
|
|
This source form is a 1:1 port from the OpenBSD `blowfish.c` and `bcrypt_pbkdf.c`.
|
||
|
|
As a result, it retains the original copyright and license. The two files are
|
||
|
|
under slightly different (but compatible) licenses, and are here combined in
|
||
|
|
one file. For each of the full license texts see `LICENSE`.
|