An open API service indexing awesome lists of open source software.

https://github.com/alessiofrittoli/crypto-buffer

Lightweight TypeScript Node.js Buffers utility library
https://github.com/alessiofrittoli/crypto-buffer

buffers nodejs

Last synced: 2 months ago
JSON representation

Lightweight TypeScript Node.js Buffers utility library

Awesome Lists containing this project

README

          

# Crypto Buffer 🚌

[![NPM Latest Version][version-badge]][npm-url] [![Coverage Status][coverage-badge]][coverage-url] [![Socket Status][socket-badge]][socket-url] [![NPM Monthly Downloads][downloads-badge]][npm-url] [![Dependencies][deps-badge]][deps-url]

[![GitHub Sponsor][sponsor-badge]][sponsor-url]

[version-badge]: https://img.shields.io/npm/v/%40alessiofrittoli%2Fcrypto-buffer
[npm-url]: https://npmjs.org/package/%40alessiofrittoli%2Fcrypto-buffer
[coverage-badge]: https://coveralls.io/repos/github/alessiofrittoli/crypto-buffer/badge.svg
[coverage-url]: https://coveralls.io/github/alessiofrittoli/crypto-buffer
[socket-badge]: https://socket.dev/api/badge/npm/package/@alessiofrittoli/crypto-buffer
[socket-url]: https://socket.dev/npm/package/@alessiofrittoli/crypto-buffer/overview
[downloads-badge]: https://img.shields.io/npm/dm/%40alessiofrittoli%2Fcrypto-buffer.svg
[deps-badge]: https://img.shields.io/librariesio/release/npm/%40alessiofrittoli%2Fcrypto-buffer
[deps-url]: https://libraries.io/npm/%40alessiofrittoli%2Fcrypto-buffer
[sponsor-badge]: https://img.shields.io/static/v1?label=Fund%20this%20package&message=%E2%9D%A4&logo=GitHub&color=%23DB61A2
[sponsor-url]: https://github.com/sponsors/alessiofrittoli

## Lightweight TypeScript Node.js Buffers utility library

### Table of Contents

- [Getting started](#getting-started)
- [Utilities](#utilities)
- [`toDataView`](#todataview)
- [Common Utilities](#common-utilities)
- [`bufferEquals`](#bufferequals)
- [Conversion Utilities](#conversion-utilities)
- [`stringToBinary`](#stringtobinary)
- [`stringToBytes`](#stringtobytes)
- [`binaryToString`](#binarytostring)
- [`unicodeToBinarySequence`](#unicodetobinarysequence)
- [`binarySequenceToUint8Array`](#binarysequencetouint8array)
- [`writeUint16BE`](#writeuint16be)
- [`readUint16BE`](#readuint16be)
- [`writeUint32BE`](#writeuint32be)
- [`readUint32BE`](#readuint32be)
- [Coercion Utilities](#coercion-utilities)
- [`coerceToUint8Array`](#coercetouint8array)
- [`coerceToFloatArray`](#coercetofloatarray)
- [`coerceToFloat32Array`](#coercetofloat32array)
- [`coerceToFloat64Array`](#coercetofloat64array)
- [`coerceToBigArray`](#coercetobigarray)
- [`coerceToBigInt64Array`](#coercetobigint64array)
- [`coerceToBigUint64Array`](#coercetobiguint64array)
- [Development](#development)
- [Install depenendencies](#install-depenendencies)
- [Build the source code](#build-the-source-code)
- [ESLint](#eslint)
- [Jest](#jest)
- [Contributing](#contributing)
- [Security](#security)
- [Credits](#made-with-)

---

### Getting started

Run the following command to start using `crypto-buffer` in your projects:

```bash
npm i @alessiofrittoli/crypto-buffer
```

or using `pnpm`

```bash
pnpm i @alessiofrittoli/crypto-buffer
```

---

### Utilities

#### `toDataView`

The `toDataView` function is a utility designed to convert various data types into a `DataView`. It ensures compatibility with a wide range of input formats, including strings, arrays, typed arrays, and buffers, providing a `DataView` representation of the given data.

##### Input Type

```ts
type ToDataViewInput = CoerceToUint8ArrayInput;
```

- See [`CoerceToUint8ArrayInput`](#input-type-1)

Parameters

| Parameter | Type | Description |
| --------- | ----------------- | ------------------------------------------- |
| `input` | `ToDataViewInput` | The data to be converted into a `DataView`. |

---

Returns

Type: `DataView`

The function returns a `DataView` object created from the input data.

---

Errors

Throws a `TypeError` if the input does not match any of the supported types.

---

Usage

##### Converting a String to DataView

```ts
import { toDataView } from "@alessiofrittoli/crypto-buffer";
// or
import { toDataView } from "@alessiofrittoli/crypto-buffer/toDataView";

const data = "Hello, World!";
const view = toDataView(data);

console.log(view.byteLength); // Logs the byte length of the string.
```

##### Converting a Uint8Array to DataView

```ts
import { toDataView } from "@alessiofrittoli/crypto-buffer";
// or
import { toDataView } from "@alessiofrittoli/crypto-buffer/toDataView";

const data = new Uint8Array([1, 2, 3, 4]);
const view = toDataView(data);

console.log(view.getUint8(0)); // Logs 1
```

##### Handling Invalid Input

```ts
import { toDataView } from "@alessiofrittoli/crypto-buffer";
// or
import { toDataView } from "@alessiofrittoli/crypto-buffer/toDataView";

try {
const invalidInput = { foo: "bar" };
const view = toDataView(invalidInput);
} catch (error) {
console.error(error.message); // Expected `input` to be a Expected `input` to be a string, Array, ...
}
```

---

#### Common Utilities

##### `bufferEquals`

The `bufferEquals` function leverages the `coerceToUint8Array` utility function to normalize input data into `Uint8Array` objects for consistent byte-level comparison.

It first checks the byte lengths of the two buffers to ensure they are identical. If the lengths match, it performs a byte-by-byte comparison.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ------------------------------------------- |
| `buffer1` | `CoerceToUint8ArrayInput` | The first input to compare. |
| `buffer2` | `CoerceToUint8ArrayInput` | The second input to compare with `buffer1`. |

---

Returns

Type: `boolean`

`true` if the buffers are equal, `false` otherwise.

---

Usage

###### Convert a String in a Node.js Environment

```ts
import { bufferEquals } from "@alessiofrittoli/crypto-buffer";
// or
import { bufferEquals } from "@alessiofrittoli/crypto-buffer/common";

const buffer1 = new Uint8Array([1, 2, 3]);
const buffer2 = new Uint8Array([1, 2, 3]);
const buffer3 = new Uint8Array([4, 5, 6]);

console.log(bufferEquals(buffer1, buffer2)); // true
console.log(bufferEquals(buffer1, buffer3)); // false
```

---

#### Conversion Utilities

##### `stringToBinary`

The `stringToBinary` function is a utility for converting a string into a `Uint8Array`\

Parameters

| Parameter | Type | Description |
| --------- | -------- | --------------------------- |
| `input` | `string` | The string to be converted. |

---

Returns

Type: `Uint8Array`

The function returns a new `Uint8Array` instance.

---

Usage

###### Convert a String to binary data

```ts
import { stringToBinary } from "@alessiofrittoli/crypto-buffer";
// or
import { stringToBinary } from "@alessiofrittoli/crypto-buffer/conversion";

const data = "Hello, World!";
const binary = stringToBinary(data);

console.log(new TextDecoder().decode(binary));
// Outputs: 'Hello, World!'
```

---

##### `stringToBytes`

The `stringToBytes` function converts a string into an Array of bytes (`number[]`). It leverages the [stringToBinary](#stringtobinary) utility to handle string-to-binary conversion, ensuring compatibility with both browser and Node.js environments. The resulting array represents the byte values of the input string.

Parameters

| Parameter | Type | Description |
| --------- | -------- | --------------------------- |
| `input` | `string` | The string to be converted. |

---

Returns

Type: `number[]`

The function returns an array of bytes (`number[]`), where each element represents a single byte of the input string.

---

Usage

###### Convert a String to Bytes

```ts
import { stringToBytes } from "@alessiofrittoli/crypto-buffer";
// or
import { stringToBytes } from "@alessiofrittoli/crypto-buffer/conversion";

const data = "Hello";
const bytes = stringToBytes(data);

console.log(bytes); // [ 72, 101, 108, 108, 111 ] (ASCII values of 'Hello')
```

---

##### `binaryToString`

The `binaryToString` function converts various binary data types into their string representations.\
It is designed to be cross-platform, working in both Node.js and browser environments.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The binary data to be converted to a string. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |

---

Returns

Type `string`

A string representation of the given input.

---

Example usage

###### Node.js

```ts
import { binaryToString } from "@alessiofrittoli/crypto-buffer";
// or
import { binaryToString } from "@alessiofrittoli/crypto-buffer/conversion";

console.log(binaryToString(Buffer.from("Hello, World!")));
// Outputs: 'Hello, World!'
```

###### Browser

```ts
import { binaryToString, stringToBytes } from "@alessiofrittoli/crypto-buffer";
// or
import {
binaryToString,
stringToBytes,
} from "@alessiofrittoli/crypto-buffer/conversion";

const uint8Array = new Uint8Array(stringToBytes("Hello!"));
console.log(binaryToString(uint8Array));
// Outputs: 'Hello!'
```

---

##### `unicodeToBinarySequence`

The `unicodeToBinarySequence` function converts unicode characters to a 0-1 binary sequence.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ----------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The data to convert. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |

---

Returns

Type `string`

The 0-1 converted binary sequence.

---

Example usage

```ts
import { unicodeToBinarySequence } from "@alessiofrittoli/crypto-buffer";
// or
import { unicodeToBinarySequence } from "@alessiofrittoli/crypto-buffer/conversion";

console.log(unicodeToBinarySequence("Hello world!"));
// Outputs: '01001000 01100101 01101100 01101100 01101111 00100000 01110111 01101111 01110010 01101100 01100100 00100001'

console.log(unicodeToBinarySequence("Hello world!", "-"));
// Outputs: '01001000-01100101-01101100-01101100-01101111-00100000-01110111-01101111-01110010-01101100-01100100-00100001'
```

---

##### `binarySequenceToUint8Array`

The `binarySequenceToUint8Array` function converts a 0-1 binary sequence to `Uint8Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ----------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The data to convert. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |

---

Returns

Type `Uint8Array`

A new Uint8Array instance.

---

Example usage

```ts
import { binarySequenceToUint8Array } from "@alessiofrittoli/crypto-buffer";
// or
import { binarySequenceToUint8Array } from "@alessiofrittoli/crypto-buffer/conversion";

console.log(
binaryToString(
binarySequenceToUint8Array(
"01001000 01100101 01101100 01101100 01101111 00100000 01110111 01101111 01110010 01101100 01100100 00100001"
)
)
);
// Outputs: 'Hello world!'

console.log(
binaryToString(
binarySequenceToUint8Array(
"01001000-01100101-01101100-01101100-01101111-00100000-01110111-01101111-01110010-01101100-01100100-00100001",
"-"
)
)
);
// Outputs: 'Hello world!'
```

---

##### writeUint16BE

Writes a 16-bit unsigned integer to a new Buffer in big-endian format.

Parameters

| Parameter | Type | Description |
| --------- | -------- | --------------------------------------------------- |
| `value` | `number` | The 16-bit unsigned integer to write to the buffer. |

---

Returns

Type: `Buffer`

A Buffer containing the big-endian representation of the input value.

---

Example usage

```ts
import { writeUint16BE } from "@alessiofrittoli/crypto-buffer";
// or
import { writeUint16BE } from "@alessiofrittoli/crypto-buffer/conversion";

console.log(writeUint16BE(0xffff));
// Outputs:
```

---

##### readUint16BE

Reads an unsigned 16-bit integer from the given buffer at the specified offset using big-endian byte order.

Parameters

| Parameter | Type | Default | Description |
| --------- | -------- | ------- | ---------------------------------------------------------- |
| `buffer` | `number` | - | The buffer to read from. |
| `offset` | `number` | `0` | (Optional) The offset in the buffer to start reading from. |

---

Returns

Type: `number`

The unsigned 16-bit integer read from the buffer.

---

Example usage

```ts
import { readUint16BE } from "@alessiofrittoli/crypto-buffer";
// or
import { readUint16BE } from "@alessiofrittoli/crypto-buffer/conversion";

console.log(readUint16BE(Buffer.from([0x12, 0x34])));
// Outputs: 0x1234
```

---

##### writeUint32BE

Writes a 32-bit unsigned integer to a new Buffer in big-endian format.

Parameters

| Parameter | Type | Description |
| --------- | -------- | --------------------------------------------------- |
| `value` | `number` | The 32-bit unsigned integer to write to the buffer. |

---

Returns

Type: `Buffer`

A Buffer containing the big-endian representation of the input value.

---

Example usage

```ts
import { writeUint32BE } from "@alessiofrittoli/crypto-buffer";
// or
import { writeUint32BE } from "@alessiofrittoli/crypto-buffer/conversion";

console.log(writeUint32BE(0xffffffff));
// Outputs:
```

---

##### readUint32BE

Reads an unsigned 32-bit integer from the given buffer at the specified offset using big-endian byte order.

Parameters

| Parameter | Type | Default | Description |
| --------- | -------- | ------- | ---------------------------------------------------------- |
| `buffer` | `number` | - | The buffer to read from. |
| `offset` | `number` | `0` | (Optional) The offset in the buffer to start reading from. |

---

Returns

Type: `number`

The unsigned 32-bit integer read from the buffer.

---

Example usage

```ts
import { readUint32BE } from "@alessiofrittoli/crypto-buffer";
// or
import { readUint32BE } from "@alessiofrittoli/crypto-buffer/conversion";

console.log(readUint32BE(Buffer.from([0x12, 0x34, 0x56, 0x78])));
// Outputs: 0x12345678
```

---

#### Coercion Utilities

This module provides a set of utility functions for coercing data into specific array types, such as `Uint8Array`, `Float32Array`, `Float64Array`, `BigInt64Array`, and `BigUint64Array`.\
It supports various input types and ensures compatibility across different data representations.

---

##### `coerceToUint8Array`

Coerces input data into a `Uint8Array`.

###### Input Type

```ts
type CoerceToUint8ArrayInput =
| string
| number
| bigint
| Array
| Buffer
| ArrayBufferLike
| ArrayBufferView
| NodeJS.ArrayBufferView;
```

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ------------------------------------------------------ |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. Possible input Type can be: |
| | | - `string` |
| | | - `number` (will be automatically converted to string) |
| | | - `bigint` (will be automatically converted to string) |
| | | - `Array` (array of bytes) |
| | | - `Buffer` |
| | | - `ArrayBufferLike` |
| | | - `ArrayBufferView` |
| | | - `NodeJS.ArrayBufferView` |

---

Returns

Type: `Uint8Array`

The function returns a new `Uint8Array` instance created from the input data.

---

Usage

###### Converting a String to Uint8Array

```ts
import { coerceToUint8Array } from "@alessiofrittoli/crypto-buffer";
// or
import { coerceToUint8Array } from "@alessiofrittoli/crypto-buffer/coercion";

const buffer = coerceToUint8Array("Hello, World!");
```

###### Converting a DataView to Uint8Array

```ts
import { coerceToUint8Array } from "@alessiofrittoli/crypto-buffer";
// or
import { coerceToUint8Array } from "@alessiofrittoli/crypto-buffer/coercion";
import { toDataView } from "@alessiofrittoli/crypto-buffer/toDataView";
import { stringToBinary } from "@alessiofrittoli/crypto-buffer/conversion";

const view = toDataView(stringToBinary("Hello, World!"));

console.log(coerceToUint8Array(view));
```

---

##### `coerceToInt16Array`

Coerces input data into a `Int16Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | -------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [`CoerceToUint8ArrayInput`](#input-type-1) for accepted data types. |

---

Returns

Type: `Int16Array`

The function returns a new `Int16Array` instance created from the input data.

---

##### `coerceToUint16Array`

Coerces input data into a `Uint16Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | -------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [`CoerceToUint8ArrayInput`](#input-type-1) for accepted data types. |

---

Returns

Type: `Uint16Array`

The function returns a new `Uint16Array` instance created from the input data.

---

##### `coerceToInt32Array`

Coerces input data into a `Int32Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | -------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [`CoerceToUint8ArrayInput`](#input-type-1) for accepted data types. |

---

Returns

Type: `Int32Array`

The function returns a new `Int32Array` instance created from the input data.

---

##### `coerceToUint32Array`

Coerces input data into a `Uint32Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | -------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [`CoerceToUint8ArrayInput`](#input-type-1) for accepted data types. |

---

Returns

Type: `Uint32Array`

The function returns a new `Uint32Array` instance created from the input data.

---

##### `coerceToSharedArrayBuffer`

Coerces input data into a `SharedArrayBuffer`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | -------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [`CoerceToUint8ArrayInput`](#input-type-1) for accepted data types. |

---

Returns

Type: `SharedArrayBuffer`

The function returns a new `SharedArrayBuffer` instance created from the input data.

---

##### `coerceToFloatArray`

Coerces input data into a `Float32Array` or `Float64Array`, based on the specified bit size.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |
| `bit` | `32 \| 64` | Specifies whether to return a `Float32Array` (32-bit) or `Float64Array` (64-bit). |

---

Returns

Type: `Float32Array | Float64Array`

A new instance of the respective float array type.

---

##### `coerceToFloat32Array`

A specialized version of `coerceToFloatArray` that coerces input data into a `Float32Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |

---

Returns

Type: `Float32Array`

A new instance of `Float32Array`.

---

Usage

```ts
import { coerceToFloat32Array } from "@alessiofrittoli/crypto-buffer";
// or
import { coerceToFloat32Array } from "@alessiofrittoli/crypto-buffer/coercion";

const float32Array = coerceToFloat32Array("Hello, World!");
```

---

##### `coerceToFloat64Array`

A specialized version of `coerceToFloatArray` that coerces input data into a `Float64Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |

---

Returns

Type: `Float64Array`

A new instance of `Float64Array`.

---

Usage

```ts
import { coerceToFloat64Array } from "@alessiofrittoli/crypto-buffer";
// or
import { coerceToFloat64Array } from "@alessiofrittoli/crypto-buffer/coercion";

const float64Array = coerceToFloat64Array("Hello, World!");
```

---

##### `coerceToBigArray`

Coerces input data into a `BigInt64Array` or `BigUint64Array` based on the `isUnsigned` parameter.

Parameters

| Parameter | Type | Description |
| ------------ | ------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |
| `isUnsigned` | `boolean` | If `true`, returns a `BigUint64Array`, `BigInt64Array` otherwise. |

---

Returns

Type: `BigInt64Array | BigUint64Array`

A new instance of the respective big integer array type.

---

##### `coerceToBigInt64Array`

A specialized version of `coerceToFloatArray` that coerces input data into a `BigInt64Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |

---

Returns

Type: `BigInt64Array`

A new instance of `BigInt64Array`.

---

Usage

```ts
import { coerceToBigInt64Array } from "@alessiofrittoli/crypto-buffer";
// or
import { coerceToBigInt64Array } from "@alessiofrittoli/crypto-buffer/coercion";

const bigInt64Array = coerceToBigInt64Array("Hello, World!");
```

---

##### `coerceToBigUint64Array`

A specialized version of `coerceToFloatArray` that coerces input data into a `BigUint64Array`.

Parameters

| Parameter | Type | Description |
| --------- | ------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| `input` | `CoerceToUint8ArrayInput` | The input data to convert. See [coerceToUint8Array](#coercetouint8array) for a list of possible input data types. |

---

Returns

Type: `BigUint64Array`

A new instance of `BigUint64Array`.

---

Usage

```ts
import { coerceToBigUint64Array } from "@alessiofrittoli/crypto-buffer";
// or
import { coerceToBigUint64Array } from "@alessiofrittoli/crypto-buffer/coercion";

const bigUint64Array = coerceToBigUint64Array("Hello, World!");
```

---

### Development

#### Install depenendencies

```bash
npm install
```

or using `pnpm`

```bash
pnpm i
```

#### Build the source code

Run the following command to test and build code for distribution.

```bash
pnpm build
```

#### [ESLint](https://www.npmjs.com/package/eslint)

warnings / errors check.

```bash
pnpm lint
```

#### [Jest](https://npmjs.com/package/jest)

Run all the defined test suites by running the following:

```bash
# Run tests and watch file changes.
pnpm test:watch

# Run tests in a CI environment.
pnpm test:ci
```

- See [`package.json`](./package.json) file scripts for more info.

Run tests with coverage.

An HTTP server is then started to serve coverage files from `./coverage` folder.

⚠️ You may see a blank page the first time you run this command. Simply refresh the browser to see the updates.

```bash
test:coverage:serve
```

---

### Contributing

Contributions are truly welcome!

Please refer to the [Contributing Doc](./CONTRIBUTING.md) for more information on how to start contributing to this project.

Help keep this project up to date with [GitHub Sponsor][sponsor-url].

[![GitHub Sponsor][sponsor-badge]][sponsor-url]

---

### Security

If you believe you have found a security vulnerability, we encourage you to **_responsibly disclose this and NOT open a public issue_**. We will investigate all legitimate reports. Email `security@alessiofrittoli.it` to disclose any security vulnerabilities.

### Made with ☕




avatar






Alessio Frittoli





https://alessiofrittoli.it |
info@alessiofrittoli.it