# Quiz 35 Which of the following statements about the Diffie-Hellman key exchange are true? (Choose all that apply) **Add answers and select the correct ones** * [x] It uses asymmetric key-pairs to generate a symmetric shared secret * [x] It relies on the mathematical properties of the modulo operation * [ ] It encrypts all communications end-to-end * [ ] It was first published in 1985 **Note to Learners**\ The answer to the second problem was found before the internet began, called the Diffie-Hellman key exchange, and it's based on the idea of using asymmetric, public-private, key-pairs to generate a symmetric shared secret, securely. Essentially, the Diffie-Hellman key exchange algorithm works by taking advantage of the unique mathematical properties of the modulo operation. To learn more about it, you can follow the course [RIPEMD-160](https://bsvblockchain.360learning.com/course/play/68be94d003e0ff2b593f5662) --- # 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/bitcoin-primitives-hash-functions/quiz-bitcoin-hash-functions/quiz-35.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.