# Tillitis TKey Licensing ## Main license Unless otherwise noted, the project sources are licensed under the terms and conditions of the "GNU General Public License v2.0 only". The `LICENSES/` directory contains copies of the license texts used by the sources included in the project source tree. ## SPDX The project uses single-line references to Unique License Identifiers as defined by the Linux Foundation's [SPDX project](https://spdx.org/). The line in each individual source file identifies the license applicable to that file. The current set of valid, predefined SPDX identifiers can be found on the SPDX License List at: https://spdx.org/licenses/