common

Runtime-agnostic helpers that work identically in browser and Node.js without touching any platform crypto API.

Overview

The common entry point is reserved for utilities that are pure functions over plain values and therefore have no need to be split per-runtime. Today it exposes a single SHA-256 hash-string validator. Algorithm implementations, key derivation, and the vault live in the platform-specific /browser and /node entry points because they require a SubtleCrypto and secure RNG.

Usage

import { isSHA256Hash } from '@hyperfrontend/cryptography/common'

isSHA256Hash('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855') // true
isSHA256Hash('not-a-hash') // false

Use this entry point in code that runs in both environments (shared types, isomorphic validators, framework-agnostic packages) to avoid pulling a platform adapter into the bundle.

API Reference

ƒ Functions

§function

isSHA256Hash(hash: unknown): boolean

Validates whether the provided value is a valid SHA-256 hash string. Checks for exactly 64 hexadecimal characters (case-insensitive).

Parameters

Name	Type	Description
§hash	`unknown`	The value to validate as a SHA-256 hash

Returns

boolean

True if the value is a valid SHA-256 hash string, false otherwise

Example

Validating SHA-256 hashes

isSHA256Hash('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855')
// => true

isSHA256Hash('invalid')
// => false