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book: Fix book tests by adding missing definitions to SHA-256 page

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Jack Grigg 2020-12-23 16:13:44 +00:00
parent 2fe7daa6f4
commit a4029222fd
1 changed files with 9 additions and 0 deletions
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9
book/src/design/gadgets/sha256.md
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@ -18,6 +18,15 @@ gadget to consume input in 32-bit chunks.
The SHA-256 gadget requires a chip with the following instructions:
```rust
# extern crate halo2;
# use halo2::plonk::Error;
# use std::fmt;
#
# trait Chip: Sized {}
# trait Layouter<C: Chip> {}
const BLOCK_SIZE: usize = 16;
const DIGEST_SIZE: usize = 8;
pub trait Sha256Instructions: Chip {
/// Variable representing the SHA-256 internal state.
type State: Clone + fmt::Debug;