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permute.js
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permute.js
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// from round-const.js
const RC = [1,0,32898,0,32906,-2147483648,-2147450880,-2147483648,32907,0,-2147483647,0,-2147450751,-2147483648,32777,-2147483648,138,0,136,0,-2147450871,0,-2147483638,0,-2147450741,0,139,-2147483648,32905,-2147483648,32771,-2147483648,32770,-2147483648,128,-2147483648,32778,0,-2147483638,-2147483648,-2147450751,-2147483648,32896,-2147483648,-2147483647,0,-2147450872,-2147483648];
// https://github.com/emn178/js-sha3/blob/master/src/sha3.js
export function permute32(s) {
for (let n = 0; n < 48; n += 2) {
let c0 = s[0] ^ s[10] ^ s[20] ^ s[30] ^ s[40];
let c1 = s[1] ^ s[11] ^ s[21] ^ s[31] ^ s[41];
let c2 = s[2] ^ s[12] ^ s[22] ^ s[32] ^ s[42];
let c3 = s[3] ^ s[13] ^ s[23] ^ s[33] ^ s[43];
let c4 = s[4] ^ s[14] ^ s[24] ^ s[34] ^ s[44];
let c5 = s[5] ^ s[15] ^ s[25] ^ s[35] ^ s[45];
let c6 = s[6] ^ s[16] ^ s[26] ^ s[36] ^ s[46];
let c7 = s[7] ^ s[17] ^ s[27] ^ s[37] ^ s[47];
let c8 = s[8] ^ s[18] ^ s[28] ^ s[38] ^ s[48];
let c9 = s[9] ^ s[19] ^ s[29] ^ s[39] ^ s[49];
let h = c8 ^ ((c2 << 1) | (c3 >>> 31));
let l = c9 ^ ((c3 << 1) | (c2 >>> 31));
s[0] ^= h;
s[1] ^= l;
s[10] ^= h;
s[11] ^= l;
s[20] ^= h;
s[21] ^= l;
s[30] ^= h;
s[31] ^= l;
s[40] ^= h;
s[41] ^= l;
h = c0 ^ ((c4 << 1) | (c5 >>> 31));
l = c1 ^ ((c5 << 1) | (c4 >>> 31));
s[2] ^= h;
s[3] ^= l;
s[12] ^= h;
s[13] ^= l;
s[22] ^= h;
s[23] ^= l;
s[32] ^= h;
s[33] ^= l;
s[42] ^= h;
s[43] ^= l;
h = c2 ^ ((c6 << 1) | (c7 >>> 31));
l = c3 ^ ((c7 << 1) | (c6 >>> 31));
s[4] ^= h;
s[5] ^= l;
s[14] ^= h;
s[15] ^= l;
s[24] ^= h;
s[25] ^= l;
s[34] ^= h;
s[35] ^= l;
s[44] ^= h;
s[45] ^= l;
h = c4 ^ ((c8 << 1) | (c9 >>> 31));
l = c5 ^ ((c9 << 1) | (c8 >>> 31));
s[6] ^= h;
s[7] ^= l;
s[16] ^= h;
s[17] ^= l;
s[26] ^= h;
s[27] ^= l;
s[36] ^= h;
s[37] ^= l;
s[46] ^= h;
s[47] ^= l;
h = c6 ^ ((c0 << 1) | (c1 >>> 31));
l = c7 ^ ((c1 << 1) | (c0 >>> 31));
s[8] ^= h;
s[9] ^= l;
s[18] ^= h;
s[19] ^= l;
s[28] ^= h;
s[29] ^= l;
s[38] ^= h;
s[39] ^= l;
s[48] ^= h;
s[49] ^= l;
let b00 = s[0];
let b01 = s[1];
let b32 = (s[11] << 4) | (s[10] >>> 28);
let b33 = (s[10] << 4) | (s[11] >>> 28);
let b14 = (s[20] << 3) | (s[21] >>> 29);
let b15 = (s[21] << 3) | (s[20] >>> 29);
let b46 = (s[31] << 9) | (s[30] >>> 23);
let b47 = (s[30] << 9) | (s[31] >>> 23);
let b28 = (s[40] << 18) | (s[41] >>> 14);
let b29 = (s[41] << 18) | (s[40] >>> 14);
let b20 = (s[2] << 1) | (s[3] >>> 31);
let b21 = (s[3] << 1) | (s[2] >>> 31);
let b02 = (s[13] << 12) | (s[12] >>> 20);
let b03 = (s[12] << 12) | (s[13] >>> 20);
let b34 = (s[22] << 10) | (s[23] >>> 22);
let b35 = (s[23] << 10) | (s[22] >>> 22);
let b16 = (s[33] << 13) | (s[32] >>> 19);
let b17 = (s[32] << 13) | (s[33] >>> 19);
let b48 = (s[42] << 2) | (s[43] >>> 30);
let b49 = (s[43] << 2) | (s[42] >>> 30);
let b40 = (s[5] << 30) | (s[4] >>> 2);
let b41 = (s[4] << 30) | (s[5] >>> 2);
let b22 = (s[14] << 6) | (s[15] >>> 26);
let b23 = (s[15] << 6) | (s[14] >>> 26);
let b04 = (s[25] << 11) | (s[24] >>> 21);
let b05 = (s[24] << 11) | (s[25] >>> 21);
let b36 = (s[34] << 15) | (s[35] >>> 17);
let b37 = (s[35] << 15) | (s[34] >>> 17);
let b18 = (s[45] << 29) | (s[44] >>> 3);
let b19 = (s[44] << 29) | (s[45] >>> 3);
let b10 = (s[6] << 28) | (s[7] >>> 4);
let b11 = (s[7] << 28) | (s[6] >>> 4);
let b42 = (s[17] << 23) | (s[16] >>> 9);
let b43 = (s[16] << 23) | (s[17] >>> 9);
let b24 = (s[26] << 25) | (s[27] >>> 7);
let b25 = (s[27] << 25) | (s[26] >>> 7);
let b06 = (s[36] << 21) | (s[37] >>> 11);
let b07 = (s[37] << 21) | (s[36] >>> 11);
let b38 = (s[47] << 24) | (s[46] >>> 8);
let b39 = (s[46] << 24) | (s[47] >>> 8);
let b30 = (s[8] << 27) | (s[9] >>> 5);
let b31 = (s[9] << 27) | (s[8] >>> 5);
let b12 = (s[18] << 20) | (s[19] >>> 12);
let b13 = (s[19] << 20) | (s[18] >>> 12);
let b44 = (s[29] << 7) | (s[28] >>> 25);
let b45 = (s[28] << 7) | (s[29] >>> 25);
let b26 = (s[38] << 8) | (s[39] >>> 24);
let b27 = (s[39] << 8) | (s[38] >>> 24);
let b08 = (s[48] << 14) | (s[49] >>> 18);
let b09 = (s[49] << 14) | (s[48] >>> 18);
s[0] = b00 ^ (~b02 & b04);
s[1] = b01 ^ (~b03 & b05);
s[10] = b10 ^ (~b12 & b14);
s[11] = b11 ^ (~b13 & b15);
s[20] = b20 ^ (~b22 & b24);
s[21] = b21 ^ (~b23 & b25);
s[30] = b30 ^ (~b32 & b34);
s[31] = b31 ^ (~b33 & b35);
s[40] = b40 ^ (~b42 & b44);
s[41] = b41 ^ (~b43 & b45);
s[2] = b02 ^ (~b04 & b06);
s[3] = b03 ^ (~b05 & b07);
s[12] = b12 ^ (~b14 & b16);
s[13] = b13 ^ (~b15 & b17);
s[22] = b22 ^ (~b24 & b26);
s[23] = b23 ^ (~b25 & b27);
s[32] = b32 ^ (~b34 & b36);
s[33] = b33 ^ (~b35 & b37);
s[42] = b42 ^ (~b44 & b46);
s[43] = b43 ^ (~b45 & b47);
s[4] = b04 ^ (~b06 & b08);
s[5] = b05 ^ (~b07 & b09);
s[14] = b14 ^ (~b16 & b18);
s[15] = b15 ^ (~b17 & b19);
s[24] = b24 ^ (~b26 & b28);
s[25] = b25 ^ (~b27 & b29);
s[34] = b34 ^ (~b36 & b38);
s[35] = b35 ^ (~b37 & b39);
s[44] = b44 ^ (~b46 & b48);
s[45] = b45 ^ (~b47 & b49);
s[6] = b06 ^ (~b08 & b00);
s[7] = b07 ^ (~b09 & b01);
s[16] = b16 ^ (~b18 & b10);
s[17] = b17 ^ (~b19 & b11);
s[26] = b26 ^ (~b28 & b20);
s[27] = b27 ^ (~b29 & b21);
s[36] = b36 ^ (~b38 & b30);
s[37] = b37 ^ (~b39 & b31);
s[46] = b46 ^ (~b48 & b40);
s[47] = b47 ^ (~b49 & b41);
s[8] = b08 ^ (~b00 & b02);
s[9] = b09 ^ (~b01 & b03);
s[18] = b18 ^ (~b10 & b12);
s[19] = b19 ^ (~b11 & b13);
s[28] = b28 ^ (~b20 & b22);
s[29] = b29 ^ (~b21 & b23);
s[38] = b38 ^ (~b30 & b32);
s[39] = b39 ^ (~b31 & b33);
s[48] = b48 ^ (~b40 & b42);
s[49] = b49 ^ (~b41 & b43);
s[0] ^= RC[n];
s[1] ^= RC[n + 1];
}
}