Java Deterministic AEAD example

This example shows how to encrypt files with Tink using Deterministic Authenticated Encryption with Associated Data (Deterministic AEAD).

It demonstrates the basic steps of using Tink, namely loading key material, obtaining a primitive, and using the primitive to do crypto.

The key material was generated with Tinkey:

tinkey create-keyset --key-template AES256_SIV --out-format JSON \
    --out deterministic_aead_test_keyset.json

Build and run

Bazel

git clone https://github.com/google/tink
cd tink/examples/java_src
bazel build ...

Encrypt a file:

echo "some data" > testdata.txt

./bazel-bin/deterministicaead/deterministic_aead_example encrypt \
    ./deterministicaead/deterministic_aead_test_keyset.json \
    testdata.txt testdata.txt.encrypted

Decrypt a file:

./bazel-bin/deterministicaead/deterministic_aead_example decrypt \
    ./deterministicaead/deterministic_aead_test_keyset.json \
    testdata.txt.encrypted testdata.txt.decrypted

diff testdata.txt testdata.txt.decrypted