Blake2b implemented in WASM
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72 lines
2.3 KiB

var sigma = [
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15],
[14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3],
[11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4],
[7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8],
[9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13],
[2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9],
[12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11],
[13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10],
[6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5],
[10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0],
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15],
[14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3]
]
function G (r, i, a, b, c, d) {
return `
;; G(${r}, ${i})
;; ${a} = ${a} + ${b} + $m${sigma[r][2 * i + 0]}
(set_local ${a} (i64.add (get_local ${a}) (i64.add (get_local ${b}) (get_local $m${sigma[r][2 * i + 0]}))))
;; ${d} = rotr64(${d} ^ ${a}, 32)
(set_local ${d} (i64.rotr (i64.xor (get_local ${d}) (get_local ${a})) (i64.const 32)))
;; ${c} = ${c} + ${d}
(set_local ${c} (i64.add (get_local ${c}) (get_local ${d})))
;; ${b} = rotr64(${b} ^ ${c}, 24)
(set_local ${b} (i64.rotr (i64.xor (get_local ${b}) (get_local ${c})) (i64.const 24)))
;; ${a} = ${a} + ${b} + $m${sigma[r][2 * i + 1]}
(set_local ${a} (i64.add (get_local ${a}) (i64.add (get_local ${b}) (get_local $m${sigma[r][2 * i + 1]}))))
;; ${d} = rotr64(${d} ^ ${a}, 16)
(set_local ${d} (i64.rotr (i64.xor (get_local ${d}) (get_local ${a})) (i64.const 16)))
;; ${c} = ${c} + ${d}
(set_local ${c} (i64.add (get_local ${c}) (get_local ${d})))
;; ${b} = rotr64(${b} ^ ${c}, 63)
(set_local ${b} (i64.rotr (i64.xor (get_local ${b}) (get_local ${c})) (i64.const 63)))`
}
function ROUND (r) {
return `
;; ROUND(${r})
${G(r, 0, '$v0', '$v4', '$v8', '$v12')}
${G(r, 1, '$v1', '$v5', '$v9', '$v13')}
${G(r, 2, '$v2', '$v6', '$v10', '$v14')}
${G(r, 3, '$v3', '$v7', '$v11', '$v15')}
${G(r, 4, '$v0', '$v5', '$v10', '$v15')}
${G(r, 5, '$v1', '$v6', '$v11', '$v12')}
${G(r, 6, '$v2', '$v7', '$v8', '$v13')}
${G(r, 7, '$v3', '$v4', '$v9', '$v14')}
`
}
console.log(
ROUND(0),
ROUND(1),
ROUND(2),
ROUND(3),
ROUND(4),
ROUND(5),
ROUND(6),
ROUND(7),
ROUND(8),
ROUND(9),
ROUND(10),
ROUND(11)
)