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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

  • C# .NET 8.0 library wrapper for noscrypt
  • Full NIP44 vector testing for encryption

0.1.7

Added

  • Initialize stack buffers to zero before use in noscrypt.c

Fixed

  • NCVerifyDigest() now correctly returns E_OPERATION_FAILED when signature verification fails

0.1.6

Added

  • Security policy for the module
  • Valgrind memory checking during unit testing
  • Added fully automated integration testing for Windows and Linux deployments
  • Automated tests for all crypto backends (MbedTLS, OpenSSL, BCrypt)

Fixed

  • #9 - Convert all OpenSSL apis to use the EVP api and unify it's usage. Also fixes some detected memory leaks that were undocumented.

Changed

  • Updated OpenSSL to v3.4.0
  • Updated MbedTLS to v3.6.2
  • Updated libsecp256k1 to v0.6.0
  • NCUtilGetEncryptionPaddedSize() no longer validates input sizes against nip44 messages sizes (correct behavior)
  • Now requires 32bit minimum CPU word size when using OpenSSL as a crypto backend

Removed

  • Breaking: Noscrypt no longer builds and links against mbedtls using CMake. You may manually install and link against mbedtls, or use the Taskfile to do it for you.
  • NC_FETCH_MBEDTLS CMake directive was removed, see previous point.

0.1.5

Added

  • NCUtilContextAlloc() and NCUtilContextFree() utilities for dynamic library context allocation

Changed

  • Public and Secret key structure definition names have been correctly namespaced (no breaking changes)

0.1.4

Fixed

  • #8 - an issue where nip44 encryption fails on reusable cipher instances

0.1.3

Added

  • Utilities sidecar library for easy note encryption (noscryptutil.h)
  • Utilities for padding calculations
  • Prints the name of the configured crypto backend during build
  • Many internal hardening improvments (span pass-by-value, span validation functions)
  • NCEncryptionGetIvSize() function to determine the size of the IV for a chosen encryption spec (nip04 or nip44)

Fixed

  • OpenSSL EVP incorrect cipher initialization vector
  • OpenSSL HKDF incorrect key derivation when switching to EVP api
  • Some missing calling convention macros for public api functions

Changed

  • Updated libsecp256k1 to v0.5.1
  • Updated OpenSSL to v3.3.1
  • Converted NCToSecKey() and NCToPubKey() to a explicitly named macros
  • Converted error code helper functions from header-only functions to standard api
  • Added helper functions to alter the NCEncryptionArgs api. Altering fields directly is now deprecated.
  • Public API visibility for non-Windows platforms now defaults to extern
  • Breaking: Changed the nonce32 and hmacKeyOut32 properties of the NCEncryptionArgs struct to nonceData and keyData respectively. ABI is still compatible, but API has changed. Again mutating this structure manually is now deprecated.
  • Unified some API naming conventions for better consistency

Removed

  • NC_ENCRYPTION_NONCE_SIZE macro for better forward compatability
  • NC_NIP04_AES_IV_SIZE macro for better forward compatability

0.1.2

Added

  • NCGetSharedContext() to get a process-wide shared context.
  • C++ extern wrappers noscrypt.h public api
  • Integrated test exe to cmake ctest

Fixed

  • Potential memory leak for openssl evp contexts during error conditions.
  • mbedtls dependency compilation when using fetch for release builds.
  • fPIC errors for libsecp256k1.

Changed

  • Update libsecp256k1 to v0.5.0.
  • Breaking: NCValidateSecretKey() retruns NC_SUCCESS instead of 1.
  • Builds using OpenSSL as a crypto backend no longer require the monocypher dependency.

Removed

  • NCContext structure defintion.
  • Internal headers from the public include directory.