# Quiz 14

What is the primary purpose of HASH-256 in Bitcoin? (Choose all that apply)

**Add answers and select the correct ones**

* [x] Generate transaction IDs
* [x] Generate block header IDs
* [ ] Encrypt private keys
* [ ] Create digital signatures<br>

**Note to learners**

HASH-256 is used to: Generate transaction IDs – including Merkle Roots, Generate block header IDs.

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To learn more about it, you can follow the course [SHA256](https://bsvblockchain.360learning.com/course/play/68bac0569f76953779e261a6)


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