This is a command-line tool that can encrypt and decrypt small files using AEAD (Authenticated Encryption with Associated Data).
It demonstrates the basic steps of using Tink, namely loading key material, obtaining a primitive, and using the primitive to do crypto.
# Build the code. git clone https://github.com/google/tink cd tink/examples/cc bazel build ... # Create some input. echo "some plaintext" > foo.txt # Encrypt. ./bazel-bin/helloworld/hello_world ./helloworld/aes128_gcm_test_keyset_json.txt \ encrypt foo.txt "some aad" foo.encrypted # Decrypt. ./bazel-bin/helloworld/hello_world ./helloworld/aes128_gcm_test_keyset_json.txt \ decrypt foo.encrypted "some aad" foo-decrypted.txt # Inspect the output. cat foo-decrypted.txt