Crate speck_core 

Speck Core

Runtime package manager for MMU-less microcontrollers.

This crate provides:

• Secure code signing and verification (Ed25519)
• Efficient binary delta updates
• Flash-aware storage with wear leveling
• Position-independent code module format

Example

use speck_core::{Module, KeyPair, DeltaBuilder};
 
// Generate signing keys
let keypair = KeyPair::generate();
 
// Create and sign a module
let code = vec![0x55, 0xAA, 0x00, 0x40]; // ARM Thumb code
let module = Module::builder()
    .code(code)
    .entry_offset(0)
    .sign(&keypair)
    .build()
    .expect("valid module");
 
// Verify the module
module.verify().expect("signature valid");

Re-exports

pub use crypto::KeyPair;

pub use crypto::PublicKey;

pub use crypto::Signature;

pub use delta::Delta;

pub use delta::DeltaApplier;

pub use delta::DeltaBuilder;

pub use error::Error;

pub use error::Result;

pub use flash::Flash;

pub use flash::FlashConfig;

pub use flash::PageId;

pub use format::Module;

pub use format::ModuleBuilder;

pub use format::ModuleHeader;

pub use format::ModuleManifest;

pub use storage::StorageManager;

pub use storage::StorageConfig;

pub use storage::InstallationStatus;

Modules

crypto

Cryptographic primitives for module signing

delta

Binary delta encoding for efficient updates

error

Error types for Speck operations

flash

NOR Flash abstraction with wear leveling and transaction support

format

Module format definition and serialization

storage

High-level storage management with transactions and wear leveling

util

Utility functions

Constants

CURRENT_MODULE_VERSION

Current module format version

MIN_MODULE_VERSION

Minimum compatible module format version

VERSION

Library version constant