36ec9801a4 test: Add chacha20 test vectors in muhash (Fabian Jahr)
0e2b400fea test: Add basic Python/C++ Muhash implementation parity unit test (Fabian Jahr)
b85543cb73 test: Add Python MuHash3072 implementation to test framework (Pieter Wuille)
ab30cece0e test: Move modinv to util and add unit test (Fabian Jahr)
Pull request description:
This is the second in a [series of pull requests](https://github.com/bitcoin/bitcoin/pull/18000) to implement an Index for UTXO set statistics.
This pull request adds a Python implementation of Muhash3072, a homomorphic hashing algorithm to be used for hashing the UTXO set. The Python implementation can then be used to compare behavior with the C++ version.
ACKs for top commit:
jnewbery:
utACK 36ec9801a
laanwj:
Code review ACK 36ec9801a4
Tree-SHA512: a3519c6e11031174f1ae71ecd8bcc7f3be42d7fc9c84c77f2fbea7cfc5ad54fcbe10b55116ad8d9a52ac5d675640eefed3bf260c58a02f2bf3bc0d8ec208baa6