# Quiz 32 Which of the following are characteristics of RIPEMD-160 compared to its predecessor RIPEMD? (Choose all that apply) **Add answers and select the correct ones** * [x] Increased the bit size of the message digest to 160 bits * [x] Increased the number of rounds from three to five * [ ] Reduced the number of rounds to two * [ ] Used MD4 as its base instead of MD5 \ **Note to Learners** The basic design philosophy of RIPEMD-160 is to build on the parallel iterations from RIPEMD with more rounds of compression, and in an optimized order. It takes the following approach: Increase the bit size of the message digest to 160 bits, Increase the number of rounds from three to five. 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-32.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.