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# f4jumble
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2021-09-22 09:38:39 -07:00
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An implementation of the F4Jumble algorithm, an unkeyed variable-width
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permutation.
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F4Jumble is used by Zcash Unified Addresses and Unified Viewing Keys to
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prevent certain kinds of malleation attacks, and is specified by [ZIP 316](https://zips.z.cash/zip-0316).
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## License
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Licensed under either of
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* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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http://www.apache.org/licenses/LICENSE-2.0)
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* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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at your option.
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### Contribution
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Unless you explicitly state otherwise, any contribution intentionally
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submitted for inclusion in the work by you, as defined in the Apache-2.0
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license, shall be dual licensed as above, without any additional terms or
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conditions.
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