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@cindylindeed cindylindeed released this 20 Nov 01:24
· 93 commits to main since this release
v2.3.0
b30610f

Tink C++ 2.3.0

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

To get started, 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/v2.3.0.zip
#   URL_HASH SHA256="363ce671ab5ce0b24f279d3647185597a25f407c3608db007315f79f151f436b"
# )
# 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/v2.3.0.zip"],
    strip_prefix = "tink-cc-2.3.0",
    sha256 = "363ce671ab5ce0b24f279d3647185597a25f407c3608db007315f79f151f436b",
)

# 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 2.2.0 can be found here.

Additions

  • DHKEM P-256 HKDF-SHA256 added to HPKE.
  • Key Encapsulation Mechanism API.
  • APIs for parsing and serializing encrypted keysets and parameters.
  • Support for parsing ECDSA keys to SignaturePemKeysetReader.
  • Support for converting Ed25519 public keys to JWKs.
  • APIs to create a KeysetHandle using key generation configs via KeysetHandleBuilder and the KeysetHandle::generateNewFromParameters function.
  • APIs to import and export keys for the following key types:
    • AES-CMAC-PRF
    • AES-CTR-HMAC Streaming
    • AES-GCM-HKDF Streaming
    • ChaCha20-Poly1305
    • HKDF-PRF
    • HMAC-PRF
    • JWT-RSA-SSA-PKCS1
    • JWT-RSA-SSA-PSS
  • Made SignaturePemKeysetReader public.
  • Made PartialKeyAccess and PartialKeyAccessToken public.
  • Made SignaturePublicKey public.

Modifications

  • Fixed bug in JsonKeysetReader parsing.
  • Fixed issue with MSVC and C++17 where comparison of different std::string_views caused an assertion failure (#6).
  • Fixed bug in RSA-SSA-PSS parameters parsing, which now fails if the hashes have different types.
  • Switched key id type from int to int32_t.
  • Combined keyset_handle_builder and keyset_handle targets into one.

Removals

  • StatefulMac interface in subtle.
    • The implementation DummyStatefulMac in test_util.
    • StatefulHmacBoringSslFactory and the implementation StatefulHmacBoringSsl of StatefulMac in subtle.
    • StatefulCmacBoringSslFactory and the implementation StatefulCmacBoringSsl of StatefulMac in subtle.
    • These were never intended to be public APIs. If this affects you, please file an issue in github.com/tink-crypto/tink-cc so we better understand the usage. We recommend reimplementing removed interfaces and implementations in your code. Public users are recommended to use ChunkedMac.
  • EciesAeadHkdfDemHelper from the crypto::tink namespace. This was never intended to be public APIs. If this affects you, please file an issue in github.com/tink-crypto/tink-cc so we better understand your usage.

Dependencies

  • Upgrades
    • Bazel (7.1.2)
    • Bzlmod deps
      • abseil-cpp (20240722.0)
      • bazel_skylib (1.7.1)
      • boringssl (0.20240930.0)
      • googletest (1.15.2)
      • platforms (0.0.10)
      • rules_proto (6.0.2)
    • WORKSPACE deps
      • abseil-cpp (20240722.0)
      • bazel_skylib (1.7.1)
      • boringssl (0.20240930.0)
      • googletest (1.15.2)
  • New
    • Bzlmod deps
      • rules_license (1.0.0)

Future

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

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