cc7

cc7 is a support library used in PowerAuth Mobile SDK and other Wultra projects. It provides multiplatform C++ interfaces that unify native code across iOS and Android, along with build scripts for OpenSSL bundled with the library.

Namespaces

Namespace	Description
cc7	General utilities: Base64 encoding/decoding and foundational support objects
cc7::crypto	Cryptographic library built on top of OpenSSL, providing the subset of functions required by Wultra projects
cc7::json	JSON parser and writer designed to minimise sensitive data leaking in memory
cc7::jwt	Simple JWT / JWS signer and verifier
cc7::objc	Apple-platform bridge: converts key objects between C++ and Objective-C
cc7::jni	Android bridge: converts key objects between C++ and Java via JNI
cc7::utils	Miscellaneous utility objects

Essential objects

Class	Description
cc7::ByteArray	Safe memory container that zeroes and cleans up its bytes upon destruction
cc7::ByteRange	Lightweight, non-owning view over a region of memory — typically used as function input
cc7::crypto::Key	Interface for a generic cryptographic key
cc7::crypto::SymmetricKey	Key for symmetric encryption algorithms and MACs
cc7::crypto::PublicKey	Public key
cc7::crypto::PrivateKey	Private key
cc7::crypto::KeyPair	Public and private key pair

Supported algorithms

Class	Description
cc7::crypto::Cipher	Interface for symmetric encryption, such as AES
cc7::crypto::MAC	Interface for computing and verifying MAC, such as KMAC
cc7::crypto::MessageDigest	Interface for computing message digest, such as SHA3
cc7::crypto::KeyAgreement	Interface for key agreement, such as ECDH
cc7::crypto::KeyEncapsulation	Interface for key encapsulation, such as ML-KEM
cc7::crypto::Signature	Interface for calculating and verifying digital signatures, such as ECDSA, ML-DSA
cc7::crypto::Random	Random data generator
cc7::crypto::AEAD	Interface for AEAD algorithms, such as AES-GCM

Platform support

• iOS / macOS — Xcode project in proj-xcode/, Swift Package Manager support via Package.swift
• Android — Android project in proj-android/

OpenSSL

Pre-built OpenSSL libraries are located in openssl-lib/. Build scripts used to produce them are in openssl-build/.

License

See LICENSE.