### Features

* pass custom hasher to index create ([#44](https://github.com/storacha/data-segment/issues/44)) ([8fda559](https://github.com/storacha/data-segment/commit/8fda5593acd5e07da5eacba01f646067ab81243a))

[5.3.0](https://github.com/storacha/data-segment/compare/v5.2.0...v5.3.0) (2024-10-18)

# @web3-storage/data-segment

Implementation of the [FRC-0058] verifiable aggregation scheme.

## API

```ts
import { Piece, MIN_PAYLOAD_SIZE } from "@web3-storage/data-segment"

// input must be >= 65 bytes
const bytes = new Uint8Array(MIN_PAYLOAD_SIZE)

const piece = Piece.fromPayload(bytes)

// bafkzcibbai3tdo4zvruj6zxo6wlt4suu3imi6to4vzmaojh4n475mdp5jcbtg
const cid = piece.link.toSting()
```

## Prior Art

Started as fork of [js-fil-utils] modernizing it to use ES modules and web crypto APIs in place of node APIs.

However, [js-fil-utils] produces different results from the more widely used go implementation which is why it got some heavy lifting inspired by [go-data-segment] and [go-fil-commp-hashhash] libraries.

[go-data-segment]:https://github.com/filecoin-project/go-fil-commp-hashhash/tree/master
[go-fil-commp-hashhash]:https://github.com/filecoin-project/go-data-segment/tree/master
[js-fil-utils]: https://github.com/rvagg/js-fil-utils/tree/master
[FRC-0058]: https://github.com/filecoin-project/FIPs/blob/master/FRCs/frc-0058.md


Implementation of [FRC-0058](https://github.com/filecoin-project/FIPs/blob/master/FRCs/frc-0058.md) verifiable aggregation scheme

Meet the Socket Team at BlackHat and DEF CON in Las Vegas, Aug 4-6

@web3-storage/data-segment

alanshaw

gozala

vascosantos

olizilla

it-dag-house

data-segment

(Experimental) An ambiguous license classifier was found.

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Ambiguous License Classifier

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

What is bad text encoding?

Bad text encoding

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What is bad semver?

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.

What are bidirectional unicode control characters?

Bidirectional unicode control characters

This package has multiple bin scripts with the same name. This can cause non-deterministic behavior when installing or could be a sign of a supply chain attack.

What is bin script confusion?

Bin script confusion

Semantic versions published out of chronological order.

What is a chronological version anomaly?

Chronological version anomaly

Project maintainer's SSH key has been compromised.

What is a compromised SSH key?

Compromised SSH key

(Experimental) Copyleft license information was found.

What do I need to know about license files?

Copyleft License

Contains a Critical Common Vulnerability and Exposure (CVE).

What is a critical CVE?

Title

Critical CVE

Contains a high severity Common Vulnerability and Exposure (CVE).

What is a CVE?

High CVE

Uses debug, reflection and dynamic code execution features.

What is debug access?

Debug access

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Deprecated

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Deprecated SPDX exception

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Deprecated license

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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Empty package

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Environment variable access

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Name

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File dependency

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Filesystem access

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Wildcard dependency

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What are git dependencies?

Git dependency

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GitHub dependency

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Native code

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High entropy strings

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Unicode homoglyphs

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HTTP dependency

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Install scripts

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Long strings

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Major refactor

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Known malware

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Manifest confusion

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Network access

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@web3-storage/data-segment

@web3-storage/data-segment

API

Prior Art

5.3.0 (2024-10-18)

Features

Keywords

Related posts

@web3-storage/data-segment

@web3-storage/data-segment

API

Prior Art

5.3.0 (2024-10-18)

Features

Keywords

Related posts

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