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increment-buffer

v1.0.1

Published

increment a buffer (with carry)

Downloads

537

Vulnerabilities

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  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

dominictarrdominictarr

Keywords

Readme

increment-buffer

increment a buffer (with carry)

Example

Useful for managing nonces when using libsodium In particular, see Notes section regarding reusing keys (scroll to bottom)

> var inc = require('increment-buffer')
> inc(new Buffer([0, 0, 0, 0]))
<Buffer 00 00 00 01>

> //with carry...
> inc(new Buffer([0, 0, 0, 255]))
<Buffer 00 00 01 00>

> //wrap around
> inc(new Buffer([255, 255, 255, 255]))
<Buffer 00 00 00 00>

License

MIT