This example shows how to generate or load a cleartext keyset, obtain a primitive, and use the primitive to do crypto.
WARNING: this is not recommended, consider protecting your keysets with a key management system.
git clone https://github.com/google/tink cd tink/examples/java_src bazel build ...
You can generate a cleartext keyset:
./bazel-bin/cleartextkeyset/cleartext_keyset_example generate aes128_gcm_test_keyset.json
You can then encrypt a file with the resulting keyset:
echo "some data" > testdata.txt ./bazel-bin/cleartextkeyset/cleartext_keyset_example encrypt \ aes128_gcm_test_keyset.json \ testdata.txt testdata.txt.encrypted
or decrypt the file with:
./bazel-bin/cleartextkeyset/cleartext_keyset_example decrypt \ aes128_gcm_test_keyset.json \ testdata.txt.encrypted testdata.txt.decrypted diff testdata.txt testdata.txt.decrypted