????
Your IP : 18.119.0.35
export class RandomGenerator {
/**
* discuss at: http://locutus.io/php/sha1/
* original by: Webtoolkit.info (http://www.webtoolkit.info/)
* improved by: Michael White (http://getsprink.com)
* improved by: Kevin van Zonneveld (http://kvz.io)
* input by: Brett Zamir (http://brett-zamir.me)
* note 1: Keep in mind that in accordance with PHP, the whole string is buffered and then
* note 1: hashed. If available, we'd recommend using Node's native crypto modules directly
* note 1: in a steaming fashion for faster and more efficient hashing
* example 1: sha1('Kevin van Zonneveld')
* returns 1: '54916d2e62f65b3afa6e192e6a601cdbe5cb5897'
*/
static sha1(str) {
let _rotLeft = function (n, s) {
let t4 = (n << s) | (n >>> (32 - s));
return t4;
};
let _cvtHex = function (val) {
let str = "";
let i;
let v;
for (i = 7; i >= 0; i--) {
v = (val >>> (i * 4)) & 0x0f;
str += v.toString(16);
}
return str;
};
let blockstart;
let i, j;
let W = new Array(80);
let H0 = 0x67452301;
let H1 = 0xefcdab89;
let H2 = 0x98badcfe;
let H3 = 0x10325476;
let H4 = 0xc3d2e1f0;
let A, B, C, D, E;
let temp;
// utf8_encode
str = /*unescape*/ encodeURIComponent(str);
let strLen = str.length;
let wordArray = [];
for (i = 0; i < strLen - 3; i += 4) {
j =
(str.charCodeAt(i) << 24) |
(str.charCodeAt(i + 1) << 16) |
(str.charCodeAt(i + 2) << 8) |
str.charCodeAt(i + 3);
wordArray.push(j);
}
switch (strLen % 4) {
case 0:
i = 0x080000000;
break;
case 1:
i = (str.charCodeAt(strLen - 1) << 24) | 0x0800000;
break;
case 2:
i =
(str.charCodeAt(strLen - 2) << 24) |
(str.charCodeAt(strLen - 1) << 16) |
0x08000;
break;
case 3:
i =
(str.charCodeAt(strLen - 3) << 24) |
(str.charCodeAt(strLen - 2) << 16) |
(str.charCodeAt(strLen - 1) << 8) |
0x80;
break;
}
wordArray.push(i);
while (wordArray.length % 16 !== 14) {
wordArray.push(0);
}
wordArray.push(strLen >>> 29);
wordArray.push((strLen << 3) & 0x0ffffffff);
for (blockstart = 0; blockstart < wordArray.length; blockstart += 16) {
for (i = 0; i < 16; i++) {
W[i] = wordArray[blockstart + i];
}
for (i = 16; i <= 79; i++) {
W[i] = _rotLeft(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
}
A = H0;
B = H1;
C = H2;
D = H3;
E = H4;
for (i = 0; i <= 19; i++) {
temp =
(_rotLeft(A, 5) +
((B & C) | (~B & D)) +
E +
W[i] +
0x5a827999) &
0x0ffffffff;
E = D;
D = C;
C = _rotLeft(B, 30);
B = A;
A = temp;
}
for (i = 20; i <= 39; i++) {
temp =
(_rotLeft(A, 5) + (B ^ C ^ D) + E + W[i] + 0x6ed9eba1) &
0x0ffffffff;
E = D;
D = C;
C = _rotLeft(B, 30);
B = A;
A = temp;
}
for (i = 40; i <= 59; i++) {
temp =
(_rotLeft(A, 5) +
((B & C) | (B & D) | (C & D)) +
E +
W[i] +
0x8f1bbcdc) &
0x0ffffffff;
E = D;
D = C;
C = _rotLeft(B, 30);
B = A;
A = temp;
}
for (i = 60; i <= 79; i++) {
temp =
(_rotLeft(A, 5) + (B ^ C ^ D) + E + W[i] + 0xca62c1d6) &
0x0ffffffff;
E = D;
D = C;
C = _rotLeft(B, 30);
B = A;
A = temp;
}
H0 = (H0 + A) & 0x0ffffffff;
H1 = (H1 + B) & 0x0ffffffff;
H2 = (H2 + C) & 0x0ffffffff;
H3 = (H3 + D) & 0x0ffffffff;
H4 = (H4 + E) & 0x0ffffffff;
}
temp =
_cvtHex(H0) + _cvtHex(H1) + _cvtHex(H2) + _cvtHex(H3) + _cvtHex(H4);
return temp.toLowerCase();
}
}
//# sourceMappingURL=RandomGenerator.js.map