| [6a3a178] | 1 | Port of the OpenBSD `bcrypt_pbkdf` function to pure Javascript. `npm`-ified
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| 2 | version of [Devi Mandiri's port](https://github.com/devi/tmp/blob/master/js/bcrypt_pbkdf.js),
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| 3 | with some minor performance improvements. The code is copied verbatim (and
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| 4 | un-styled) from Devi's work.
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| 5 |
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| 6 | This product includes software developed by Niels Provos.
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| 7 |
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| 8 | ## API
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| 9 |
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| 10 | ### `bcrypt_pbkdf.pbkdf(pass, passlen, salt, saltlen, key, keylen, rounds)`
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| 11 |
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| 12 | Derive a cryptographic key of arbitrary length from a given password and salt,
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| 13 | using the OpenBSD `bcrypt_pbkdf` function. This is a combination of Blowfish and
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| 14 | SHA-512.
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| 15 |
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| 16 | See [this article](http://www.tedunangst.com/flak/post/bcrypt-pbkdf) for
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| 17 | further information.
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| 18 |
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| 19 | Parameters:
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| 20 |
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| 21 | * `pass`, a Uint8Array of length `passlen`
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| 22 | * `passlen`, an integer Number
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| 23 | * `salt`, a Uint8Array of length `saltlen`
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| 24 | * `saltlen`, an integer Number
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| 25 | * `key`, a Uint8Array of length `keylen`, will be filled with output
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| 26 | * `keylen`, an integer Number
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| 27 | * `rounds`, an integer Number, number of rounds of the PBKDF to run
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| 28 |
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| 29 | ### `bcrypt_pbkdf.hash(sha2pass, sha2salt, out)`
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| 30 |
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| 31 | Calculate a Blowfish hash, given SHA2-512 output of a password and salt. Used as
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| 32 | part of the inner round function in the PBKDF.
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| 33 |
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| 34 | Parameters:
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| 35 |
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| 36 | * `sha2pass`, a Uint8Array of length 64
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| 37 | * `sha2salt`, a Uint8Array of length 64
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| 38 | * `out`, a Uint8Array of length 32, will be filled with output
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| 39 |
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| 40 | ## License
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| 41 |
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| 42 | This source form is a 1:1 port from the OpenBSD `blowfish.c` and `bcrypt_pbkdf.c`.
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| 43 | As a result, it retains the original copyright and license. The two files are
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| 44 | under slightly different (but compatible) licenses, and are here combined in
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| 45 | one file. For each of the full license texts see `LICENSE`.
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