# Assessment 1 #### Why is it important for a encryption function to be reversible? * [x] It's crucial the intended recipient of an encrypted message is able to reverse the encryption process to access the information * [ ] It produces a fixed-length output in clear text * [ ] It has a collision risk **Notes to Learners** A hash function is a one-way function that does not need to be reversed. In fact, it's important it's not reversible. In contrast, it's crucial the intended recipient of an encrypted message is able to reverse the encryption process in order to decrypt the message so they can read it. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://hub.bsvblockchain.org/higher-learning/bsv-academy/hash-functions-crash-course/assessment-1.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.