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Replace sha3.js in node_modules/@noble/hashes with unrolled-sha3.js
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const rotlHs = (h: string, l: string, s: number) => | |
s > 32 ? `(${l} << ${s - 32}) | (${h} >>> ${64 - s})` : `(${h} << ${s}) | (${l} >>> ${32 - s})`; | |
const rotlLs = (h: string, l: string, s: number) => | |
s > 32 ? `(${h} << ${s - 32}) | (${l} >>> ${64 - s})` : `(${l} << ${s}) | (${h} >>> ${32 - s})`; | |
export const keccakP = (() => { | |
let out = 'let h, l, s = state;\n'; | |
const vars = []; | |
for (let i = 0; i < 200 / 4; i++) vars.push(`s${i} = s[${i}]`); | |
out += `let ${vars.join(', ')};\n`; | |
out += `for (let round = 24 - rounds; round < 24; round++) {\n`; | |
// Theta θ | |
out += '\n// Theta θ\n'; | |
for (let x = 0; x < 10; x++) | |
out += `let B${x} = s${x} ^ s${x + 10} ^ s${x + 20} ^ s${x + 30} ^ s${x + 40};\n`; | |
for (let x = 0; x < 10; x += 2) { | |
const B0 = `B${(x + 2) % 10}`; | |
const B1 = `B${((x + 2) % 10) + 1}`; | |
out += `h = (${rotlHs(B0, B1, 1)}) ^ B${(x + 8) % 10}; `; | |
out += `l = (${rotlLs(B0, B1, 1)}) ^ B${((x + 8) % 10) + 1};\n`; | |
for (let y = 0; y < 50; y += 10) out += `s${x + y} ^= h; s${x + y + 1} ^= l; `; | |
out += '\n'; | |
} | |
// Rho (ρ) and Pi (π) | |
out += '\n// Rho (ρ) and Pi (π)\n'; | |
out += `let sh = s${2}, sl = s${3}; `; | |
for (let t = 0; t < 24; t++) { | |
const shift = SHA3_ROTL[t]; | |
out += `h = ${rotlHs('sh', 'sl', shift)}; `; | |
out += `l = ${rotlLs('sh', 'sl', shift)};\n`; | |
const PI = SHA3_PI[t]; | |
out += `sh = s${PI}; sl = s${PI + 1}; `; | |
out += `s${PI} = h; s${PI + 1} = l;\n`; | |
} | |
// Chi (χ) | |
out += '\n// Chi (χ)\n'; | |
for (let y = 0; y < 50; y += 10) { | |
for (let x = 0; x < 10; x++) out += `B${x} = s${y + x}; `; | |
out += '\n'; | |
for (let x = 0; x < 10; x++) out += `s${y + x} ^= ~B${(x + 2) % 10} & B${(x + 4) % 10}; `; | |
out += '\n'; | |
} | |
// Iota (ι) | |
out += (`\n// Iota (ι)\n`) | |
out += `s0 ^= SHA3_IOTA_H[round];\n`; | |
out += `s1 ^= SHA3_IOTA_L[round];\n`; | |
out += '}\n'; | |
for (let i = 0; i < 200 / 4; i++) out += `s[${i}] = s${i}; `; | |
return new Function('state', 'rounds', 'SHA3_IOTA_H', 'SHA3_IOTA_L', out); | |
})(); |
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