SequenceHash: Multihashing for the rest of us
Trail of Bits has introduced SequenceHash and SequenceMAC, new cryptographic constructions designed to provide secure multihashing across various hash functions. These tools aim to prevent common security vulnerabilities related to ambiguous input encodings.
Why it matters
Improving cryptographic standards for multihashing is essential for developers to build more secure software and avoid implementation-specific vulnerabilities.
cryptography , zero-knowledge , open-source Page content Wait, "multihashing"? Enter SequenceHash What does SequenceHash offer? Unambiguous input encoding Length-extension prevention Built-in customization strings MAC mode How does SequenceHash work? How do I use it? Sounds cool. What about SequenceMAC? Some notes on key size What about extensible output functions (XOFs)? What if I want to write my own implementation? Some minor caveats Multihashing is one of those cryptographic tasks that’s easy not to think about too much. This is unfortunate, because multihashing is a common stumbling point when cryptographers try to use hashes.
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