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Example code of frista28/stream-crypto-psr7

Informations about the package stream-crypto-psr7

stream-crypto-psr7

PSR-7 stream decorators for WhatsApp-like media encryption.

The package provides:

The crypto core processes source streams in chunks instead of loading the full payload into a single PHP string. The decorators materialize the transformed result into a seekable temporary stream on first read, so the exposed PSR-7 stream remains rewindable and seekable after transformation.

Requirements

Installation

Usage

Stream Decorators

Low-Level Crypto API

MediaCrypto also exposes direct string and stream APIs when you do not need the decorators:

Sidecar Generation

For streamable media types (VIDEO and AUDIO), MediaCrypto can generate WhatsApp-compatible sidecar metadata in the same encryption pass without rereading the plaintext source stream:

The returned sidecar is a binary string that should be stored alongside the encrypted media object and used as streaming metadata for chunk validation.

The library currently implements full-stream encryption/decryption and sidecar generation. Chunk-level validation and offset-based partial decryption are intentionally outside the current API surface.

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Development

The project targets PHP 8.2 and uses:

All versions of stream-crypto-psr7 with dependencies

PHP Build Version
Package Version
Requires php Version ^8.2
guzzlehttp/psr7 Version ^2.9
ext-openssl Version *
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