| 1 | # hmac-drbg
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| 2 | [](http://travis-ci.org/indutny/hmac-drbg)
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| 3 | [](http://badge.fury.io/js/hmac-drbg)
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| 4 |
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| 5 | JS-only implementation of [HMAC DRBG][0].
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| 6 |
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| 7 | ## Usage
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| 8 |
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| 9 | ```js
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| 10 | const DRBG = require('hmac-drbg');
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| 11 | const hash = require('hash.js');
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| 12 |
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| 13 | const d = new DRBG({
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| 14 | hash: hash.sha256,
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| 15 | entropy: '0123456789abcdef',
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| 16 | nonce: '0123456789abcdef',
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| 17 | pers: '0123456789abcdef' /* or `null` */
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| 18 | });
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| 19 |
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| 20 | d.generate(32, 'hex');
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| 21 | ```
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| 22 |
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| 23 | #### LICENSE
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| 24 |
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| 25 | This software is licensed under the MIT License.
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| 26 |
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| 27 | Copyright Fedor Indutny, 2017.
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| 28 |
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| 29 | Permission is hereby granted, free of charge, to any person obtaining a
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| 30 | copy of this software and associated documentation files (the
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| 31 | "Software"), to deal in the Software without restriction, including
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| 32 | without limitation the rights to use, copy, modify, merge, publish,
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| 33 | distribute, sublicense, and/or sell copies of the Software, and to permit
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| 34 | persons to whom the Software is furnished to do so, subject to the
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| 35 | following conditions:
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| 36 |
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| 37 | The above copyright notice and this permission notice shall be included
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| 38 | in all copies or substantial portions of the Software.
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| 39 |
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| 40 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 41 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| 42 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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| 43 | NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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| 44 | DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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| 45 | OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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| 46 | USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 47 |
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| 48 | [0]: http://csrc.nist.gov/groups/ST/toolkit/documents/rng/HashBlockCipherDRBG.pdf
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