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@willinois willinois released this 08 May 13:46
· 37 commits to main since this release

Tink C++ 2.2.0

Tink is a multi-language, cross-platform library that provides simple and misuse-proof APIs for common cryptographic tasks.

This is Tink C++ 2.2.0.

To get started using Tink, see the setup guide.

CMake

You can import Tink C++ as an in-tree dependency.

cmake_minimum_required(VERSION 3.13)

project(Example CXX)

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(CMAKE_BUILD_TYPE Release)

# Import Tink as an in-tree dependency.

# Option 1: tink-cc is in third_party.
add_subdirectory(third_party/tink-cc tink)

# Option 2: Use FetchContent
# include(FetchContent)
#
# FetchContent_Declare(
#   tink
#   URL https://github.com/tink-crypto/tink-cc/archive/refs/tags/v2.2.0.zip
#   URL_HASH SHA256=88e1442182452caa16d0954ceaf73e17b0aa30837ee6c0cc16bf0112313ce753
# )
# FetchContent_GetProperties(tink)
# if(NOT googletest_POPULATED)
#   FetchContent_Populate(tink)
#   add_subdirectory(${tink_SOURCE_DIR} ${tink_BINARY_DIR} EXCLUDE_FROM_ALL)
# endif()

add_executable(example_app example_app.cc)
target_link_libraries(example_app tink::static)

Bazel

workspace(name = "example")

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

http_archive(
    name = "com_github_tink_crypto_tink_cc",
    urls = ["https://github.com/tink-crypto/tink-cc/archive/refs/tags/v2.2.0.zip"],
    strip_prefix = "tink-cc-2.2.0",
    sha256 = "88e1442182452caa16d0954ceaf73e17b0aa30837ee6c0cc16bf0112313ce753",
)

# Load Tink dependencies.

load("@com_github_tink_crypto_tink_cc//:tink_cc_deps.bzl", "tink_cc_deps")

tink_cc_deps()

load("@com_github_tink_crypto_tink_cc//:tink_cc_deps_init.bzl", "tink_cc_deps_init")

tink_cc_deps_init()

# ... Your dependencies here ...

What's new

The complete list of changes since 2.1.0 can be found here.

  • Added APIs to import and export keys for the following key types:

    • AES-CTR-HMAC-AEAD
    • AES-EAX
    • ECDSA
    • ECIES
    • JWT ECDSA
    • JWT HMAC
    • XChaCha20-Poly1305
  • Removed the method HmacPrfKeyManager::MaxOutputLength from the public
    API. This method was never intended to be public and there is no reason
    to assume anyone uses it.

  • Enabled building against pre-installed protobuf with CMake.

  • Moved Bazel test-only deps to tink_cc_testonly_deps().

  • Dependency upgrades:

    • protobuf (=> 26.1)
    • googletest (=> 1.14)
    • absl (=> 20230802.1)
    • BoringSSL (=> 07fa2780386fbbc001937fabf116c1fe4ddd2705)
    • bazel_skylib (=> 1.5.0)
    • Bazel (=> 6.4.0)
  • Added class to represent elliptic curve points.

  • Added SecretDataEquals. SecretData::operator== is currently not
    constant time, and should not be called by users. Tink 3.0 will change
    this, but in the mean time, it should not be called and SecretDataEquals
    should be used instead.

Future

To see what we're working towards, check our project roadmap.