# node-hkdf

The HMAC-based Key Derivation Function for node.js.

spec: https://tools.ietf.org/html/rfc5869

## install

    npm install hkdf

## use

    const HKDF = require('hkdf');
    
    // `key` is a Buffer, that can be serialized however one desires
    var hkdf = new HKDF('sha256', 'salt123', 'initialKeyingMaterial');
    var key = hkdf.derive('info', 42);
    key.toString('hex');
    
## license

Apache License 2.0


Synchronous HKDF key derivation function. 

node-hkdf-sync

rylan

(Experimental) An ambiguous license classifier was found.

What is an ambiguous license classifier?

Ambiguous License Classifier

Source files are encoded using a non-standard text encoding.

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Bad text encoding

Package version is not a valid semantic version (semver).

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Bad semver

Package has dependencies with an invalid semantic version. This could be a sign of beta, low quality, or unmaintained dependencies.

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Bad dependency semver

Source files contain bidirectional unicode control characters. This could indicate a Trojan source supply chain attack. See: trojansource.codes for more information.

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Bidirectional unicode control characters

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Bin script confusion

This Chrome extension includes a content script '{scriptFile}' that runs on websites matching '{matches}'.

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Chrome Extension Content Script

This Chrome extension requests access to '{host}'.

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Chrome Extension Host Permission

This Chrome extension uses the '{permission}' permission.

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Chrome Extension Permission

This Chrome extension requests broad access to websites with the pattern '{host}'.

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Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

(Experimental) Copyleft license information was found.

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Copyleft License

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Title

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High CVE

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Debug access

The maintainer of the package marked it as deprecated. This could indicate that a single version should not be used, or that the package is no longer maintained and any new vulnerabilities will not be fixed.

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Package name is similar to other popular packages and may not be the package you want.

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Possible typosquat attack

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Dynamic require

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Name

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High entropy strings

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Install scripts

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Invisible chars

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License exception

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License Policy Violation

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Long strings

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Major refactor

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Modified license exception

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Network access

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node-hkdf-sync

node-hkdf

install

use

license

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