Crate winter_crypto
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This crate contains cryptographic primitives used in STARK proof generation and verification. These include:
- Hash functions - which are defined using the Hasher trait. The crate also contains two implementations of the trait for BLAKE3 and SHA3 hash functions.
- Merkle trees - which are used as a commitment scheme in the STARK protocol. The MerkleTree implementation supports concurrent tree construction as well as compact aggregation of Merkle paths implemented using a variation of the Octopus algorithm.
- PRNG - which is used to generate pseudo-random elements in a finite field. The RandomCoin implementation uses a cryptographic hash function to generate pseudo-random elements form a seed.
Modules
- Contains implementations of currently supported hash functions.
Structs
- Multiple Merkle paths aggregated into a single proof.
- Pseudo-random element generator for finite fields, which is a default implementation of the RandomCoin trait.
- A fully-balanced Merkle tree.
Enums
- Defines errors which can occur when using Merkle trees.
- Defines errors which can occur when drawing values from a random coin.
Traits
- Defines output type for a cryptographic hash function.
- Defines a cryptographic hash function for hashing field elements.
- Defines a cryptographic hash function.
- Pseudo-random element generator for finite fields.
Functions
- Returns the internal nodes of a Merkle tree defined by the specified leaves.