crypto

🔑 @eserstack/crypto

eserstack Library — eser/stack on GitHub Install: pnpm add jsr:@eserstack/crypto

Cryptographic utilities for hashing, encoding, and related operations. Built on the Web Crypto API for cross-runtime compatibility.

🚀 Quick Start

import * as crypto from "@eserstack/crypto";

// Hash a string
const hash = await crypto.computeStringHash("hello world");
console.log(hash); // "b94d27b9934d3e08"

// Hash binary content
const data = new Uint8Array([1, 2, 3]);
const binaryHash = await crypto.computeHash(data);
console.log(binaryHash); // "039058c6f2c0cb49"

🛠 Features

• String Hashing — Compute cryptographic hashes from string content
• Binary Hashing — Hash raw Uint8Array data
• Combined Hashing — Hash multiple content pieces together
• Multiple Algorithms — Supports SHA-256, SHA-384, SHA-512, and SHA-1
• Configurable Length — Control hash output length in hex characters
• Web Crypto API — Uses the standard Web Crypto API for portability

🔌 API Reference

computeStringHash(content, algorithm?, length?)

Compute a hash for string content.

import * as crypto from "@eserstack/crypto";

const hash = await crypto.computeStringHash("hello world");
// "b94d27b9934d3e08"

// With custom algorithm and length
const sha512 = await crypto.computeStringHash("hello", "SHA-512", 32);

Parameter	Type	Default	Description
content	string	—	String content to hash
algorithm	HashAlgorithm	"SHA-256"	Hash algorithm to use
length	number	16	Hash output length in hex chars

computeHash(content, algorithm?, length?)

Compute a hash for binary content.

import * as crypto from "@eserstack/crypto";

const data = new TextEncoder().encode("hello world");
const hash = await crypto.computeHash(data);

Parameter	Type	Default	Description
content	Uint8Array	—	Binary content to hash
algorithm	HashAlgorithm	"SHA-256"	Hash algorithm to use
length	number	16	Hash output length in hex chars

computeCombinedHash(contents, algorithm?, length?)

Compute a hash for multiple pieces of content concatenated together.

import * as crypto from "@eserstack/crypto";

const hash = await crypto.computeCombinedHash([
  new Uint8Array([1, 2]),
  new Uint8Array([3, 4]),
]);

Parameter	Type	Default	Description
contents	readonly Uint8Array[]	—	Array of content to hash together
algorithm	HashAlgorithm	"SHA-256"	Hash algorithm to use
length	number	16	Hash output length in hex chars

HashAlgorithm

Supported hash algorithms: "SHA-256" | "SHA-384" | "SHA-512" | "SHA-1"

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🔗 For further details, visit the eserstack repository.