df-hyperliquid-core 0.0.9-beta

Hyperliquid SDK for Rust: markets, account, trading, transfers, earn and deploy, with exact decimals and signing. Native and wasm.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135

//! The published Keccak-256 vectors, input fed in pieces, and the borrowed permutation checked
//! against one written out here.

use super::*;
use crate::utils::hex;

const ROUND_CONSTANTS: [u64; 24] = [
    0x0000_0000_0000_0001,
    0x0000_0000_0000_8082,
    0x8000_0000_0000_808a,
    0x8000_0000_8000_8000,
    0x0000_0000_0000_808b,
    0x0000_0000_8000_0001,
    0x8000_0000_8000_8081,
    0x8000_0000_0000_8009,
    0x0000_0000_0000_008a,
    0x0000_0000_0000_0088,
    0x0000_0000_8000_8009,
    0x0000_0000_8000_000a,
    0x0000_0000_8000_808b,
    0x8000_0000_0000_008b,
    0x8000_0000_0000_8089,
    0x8000_0000_0000_8003,
    0x8000_0000_0000_8002,
    0x8000_0000_0000_0080,
    0x0000_0000_0000_800a,
    0x8000_0000_8000_000a,
    0x8000_0000_8000_8081,
    0x8000_0000_0000_8080,
    0x0000_0000_8000_0001,
    0x8000_0000_8000_8008,
];

const RHO: [u32; 25] = [
    0, 1, 62, 28, 27, //
    36, 44, 6, 55, 20, //
    3, 10, 43, 25, 39, //
    41, 45, 15, 21, 8, //
    18, 2, 61, 56, 14,
];

/// Pi permutation, computed rather than transcribed so no hand-typed table can be wrong.
const PI: [usize; 25] = {
    let mut moves = [0usize; 25];
    let mut x = 0;
    while x < 5 {
        let mut y = 0;
        while y < 5 {
            moves[x + 5 * y] = y + 5 * ((2 * x + 3 * y) % 5);
            y += 1;
        }
        x += 1;
    }
    moves
};

/// The permutation written out, to check the borrowed one against.
fn permute_portable(state: &mut [u64; 25]) {
    for &round_constant in &ROUND_CONSTANTS {
        let mut column = [0u64; 5];
        for (x, parity) in column.iter_mut().enumerate() {
            *parity = state[x] ^ state[x + 5] ^ state[x + 10] ^ state[x + 15] ^ state[x + 20];
        }
        let mut spread = [0u64; 5];
        for (x, value) in spread.iter_mut().enumerate() {
            *value = column[(x + 4) % 5] ^ column[(x + 1) % 5].rotate_left(1);
        }
        for (index, lane) in state.iter_mut().enumerate() {
            *lane ^= spread[index % 5];
        }

        let mut moved = [0u64; 25];
        for (index, &lane) in state.iter().enumerate() {
            moved[PI[index]] = lane.rotate_left(RHO[index]);
        }

        for (y, row) in moved.chunks_exact(5).enumerate() {
            let out = &mut state[y * 5..y * 5 + 5];
            out[0] = row[0] ^ (!row[1] & row[2]);
            out[1] = row[1] ^ (!row[2] & row[3]);
            out[2] = row[2] ^ (!row[3] & row[4]);
            out[3] = row[3] ^ (!row[4] & row[0]);
            out[4] = row[4] ^ (!row[0] & row[1]);
        }

        state[0] ^= round_constant;
    }
}

/// The published vectors, and any input the same however it is fed in: across the 136-byte
/// block, in pieces, or all at once.
#[test]
fn the_published_vectors_hold_however_the_input_is_split() {
    for (input, digest) in [
        (&b""[..], "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"),
        (&b"abc"[..], "4e03657aea45a94fc7d47ba826c8d667c0d1e6e33a64a036ec44f58fa12d6c45"),
        (
            &b"The quick brown fox jumps over the lazy dog"[..],
            "4d741b6f1eb29cb2a9b9911c82f56fa8d73b04959d3d9d222895df6c0b28aa15",
        ),
    ] {
        assert_eq!(hex::encode(&keccak256(input)), digest);
        let mut sponge = Keccak256::default();
        for byte in input {
            sponge.update(&[*byte]);
        }
        assert_eq!(hex::encode(&sponge.finalize()), digest, "a byte at a time");
    }
    let whole = b"the quick brown fox jumps over the lazy dog, repeatedly, \
                  for long enough to cross a 136 byte block boundary and \
                  then some more so the tail is short";
    assert!(whole.len() > RATE, "this needs to span two blocks");
    for split in [0, 1, 7, 8, RATE - 1, RATE, RATE + 1, whole.len()] {
        let pieced = Keccak256::new().chain(&whole[..split]).chain(&whole[split..]).finalize();
        assert_eq!(pieced, keccak256(whole), "split at {split}");
    }
    assert_eq!(format!("{:?}", Keccak256::new()), "Keccak256", "the state is never shown");
}

#[test]
fn the_borrowed_permutation_is_the_one_this_build_would_have_written() {
    let mut mine = [0u64; 25];
    let mut theirs = [0u64; 25];
    for (at, (a, b)) in mine.iter_mut().zip(theirs.iter_mut()).enumerate() {
        let lane = 0x0123_4567_89ab_cdefu64.wrapping_mul(at as u64 + 1).rotate_left(at as u32);
        *a = lane;
        *b = lane;
    }
    for round in 0..64 {
        permute_portable(&mut mine);
        permute(&mut theirs);
        assert_eq!(mine, theirs, "they parted at round {round}");
    }
    assert_ne!(mine, [0u64; 25], "and the state actually moved");
}