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dep: replace with unminified version
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node_modules/ | ||
node_modules/ | ||
src/lib/siphash.js |
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var SipHash=function(){"use strict";function r(r,n){var t=r.l+n.l,h={h:r.h+n.h+(t/2>>>31)>>>0,l:t>>>0};r.h=h.h,r.l=h.l}function n(r,n){r.h^=n.h,r.h>>>=0,r.l^=n.l,r.l>>>=0}function t(r,n){var t={h:r.h<<n|r.l>>>32-n,l:r.l<<n|r.h>>>32-n};r.h=t.h,r.l=t.l}function h(r){var n=r.l;r.l=r.h,r.h=n}function e(e,l,o,u){r(e,l),r(o,u),t(l,13),t(u,16),n(l,e),n(u,o),h(e),r(o,l),r(e,u),t(l,17),t(u,21),n(l,o),n(u,e),h(o)}function l(r,n){return r[n+3]<<24|r[n+2]<<16|r[n+1]<<8|r[n]}function o(r,t){"string"==typeof t&&(t=u(t));var h={h:r[1]>>>0,l:r[0]>>>0},o={h:r[3]>>>0,l:r[2]>>>0},i={h:h.h,l:h.l},a=h,f={h:o.h,l:o.l},c=o,s=t.length,v=s-7,g=new Uint8Array(new ArrayBuffer(8));n(i,{h:1936682341,l:1886610805}),n(f,{h:1685025377,l:1852075885}),n(a,{h:1819895653,l:1852142177}),n(c,{h:1952801890,l:2037671283});for(var y=0;y<v;){var d={h:l(t,y+4),l:l(t,y)};n(c,d),e(i,f,a,c),e(i,f,a,c),n(i,d),y+=8}g[7]=s;for(var p=0;y<s;)g[p++]=t[y++];for(;p<7;)g[p++]=0;var w={h:g[7]<<24|g[6]<<16|g[5]<<8|g[4],l:g[3]<<24|g[2]<<16|g[1]<<8|g[0]};n(c,w),e(i,f,a,c),e(i,f,a,c),n(i,w),n(a,{h:0,l:255}),e(i,f,a,c),e(i,f,a,c),e(i,f,a,c),e(i,f,a,c);var _=i;return n(_,f),n(_,a),n(_,c),_}function u(r){if("function"==typeof TextEncoder)return(new TextEncoder).encode(r);r=unescape(encodeURIComponent(r));for(var n=new Uint8Array(r.length),t=0,h=r.length;t<h;t++)n[t]=r.charCodeAt(t);return n}return{hash:o,hash_hex:function(r,n){var t=o(r,n);return("0000000"+t.h.toString(16)).substr(-8)+("0000000"+t.l.toString(16)).substr(-8)},hash_uint:function(r,n){var t=o(r,n);return 4294967296*(2097151&t.h)+t.l},string16_to_key:function(r){var n=u(r);if(16!==n.length)throw Error("Key length must be 16 bytes");var t=new Uint32Array(4);return t[0]=l(n,0),t[1]=l(n,4),t[2]=l(n,8),t[3]=l(n,12),t},string_to_u8:u}}(),module=module||{},exports=module.exports=SipHash; | ||
var SipHash = (function () { | ||
"use strict"; | ||
function _add(a, b) { | ||
var rl = a.l + b.l, a2 = { | ||
h: a.h + b.h + (rl / 2 >>> 31) >>> 0, | ||
l: rl >>> 0 | ||
}; | ||
a.h = a2.h; | ||
a.l = a2.l; | ||
} | ||
function _xor(a, b) { | ||
a.h ^= b.h; | ||
a.h >>>= 0; | ||
a.l ^= b.l; | ||
a.l >>>= 0; | ||
} | ||
function _rotl(a, n) { | ||
var a2 = { | ||
h: a.h << n | a.l >>> (32 - n), | ||
l: a.l << n | a.h >>> (32 - n) | ||
}; | ||
a.h = a2.h; | ||
a.l = a2.l; | ||
} | ||
function _rotl32(a) { | ||
var al = a.l; | ||
a.l = a.h; | ||
a.h = al; | ||
} | ||
function _compress(v0, v1, v2, v3) { | ||
_add(v0, v1); | ||
_add(v2, v3); | ||
_rotl(v1, 13); | ||
_rotl(v3, 16); | ||
_xor(v1, v0); | ||
_xor(v3, v2); | ||
_rotl32(v0); | ||
_add(v2, v1); | ||
_add(v0, v3); | ||
_rotl(v1, 17); | ||
_rotl(v3, 21); | ||
_xor(v1, v2); | ||
_xor(v3, v0); | ||
_rotl32(v2); | ||
} | ||
function _get_int(a, offset) { | ||
return a[offset + 3] << 24 | | ||
a[offset + 2] << 16 | | ||
a[offset + 1] << 8 | | ||
a[offset]; | ||
} | ||
function hash(key, m) { | ||
if (typeof m === "string") { | ||
m = string_to_u8(m); | ||
} | ||
var k0 = { | ||
h: key[1] >>> 0, | ||
l: key[0] >>> 0 | ||
}, k1 = { | ||
h: key[3] >>> 0, | ||
l: key[2] >>> 0 | ||
}, v0 = { | ||
h: k0.h, | ||
l: k0.l | ||
}, v2 = k0, v1 = { | ||
h: k1.h, | ||
l: k1.l | ||
}, v3 = k1, ml = m.length, ml7 = ml - 7, buf = new Uint8Array(new ArrayBuffer(8)); | ||
_xor(v0, { | ||
h: 0x736f6d65, | ||
l: 0x70736575 | ||
}); | ||
_xor(v1, { | ||
h: 0x646f7261, | ||
l: 0x6e646f6d | ||
}); | ||
_xor(v2, { | ||
h: 0x6c796765, | ||
l: 0x6e657261 | ||
}); | ||
_xor(v3, { | ||
h: 0x74656462, | ||
l: 0x79746573 | ||
}); | ||
var mp = 0; | ||
while (mp < ml7) { | ||
var mi = { | ||
h: _get_int(m, mp + 4), | ||
l: _get_int(m, mp) | ||
}; | ||
_xor(v3, mi); | ||
_compress(v0, v1, v2, v3); | ||
_compress(v0, v1, v2, v3); | ||
_xor(v0, mi); | ||
mp += 8; | ||
} | ||
buf[7] = ml; | ||
var ic = 0; | ||
while (mp < ml) { | ||
buf[ic++] = m[mp++]; | ||
} | ||
while (ic < 7) { | ||
buf[ic++] = 0; | ||
} | ||
var mil = { | ||
h: buf[7] << 24 | buf[6] << 16 | buf[5] << 8 | buf[4], | ||
l: buf[3] << 24 | buf[2] << 16 | buf[1] << 8 | buf[0] | ||
}; | ||
_xor(v3, mil); | ||
_compress(v0, v1, v2, v3); | ||
_compress(v0, v1, v2, v3); | ||
_xor(v0, mil); | ||
_xor(v2, { | ||
h: 0, | ||
l: 0xff | ||
}); | ||
_compress(v0, v1, v2, v3); | ||
_compress(v0, v1, v2, v3); | ||
_compress(v0, v1, v2, v3); | ||
_compress(v0, v1, v2, v3); | ||
var h = v0; | ||
_xor(h, v1); | ||
_xor(h, v2); | ||
_xor(h, v3); | ||
return h; | ||
} | ||
function hash_hex(key, m) { | ||
var r = hash(key, m); | ||
return ("0000000" + r.h.toString(16)).substr(-8) + | ||
("0000000" + r.l.toString(16)).substr(-8); | ||
} | ||
function hash_uint(key, m) { | ||
var r = hash(key, m); | ||
return (r.h & 0x1fffff) * 0x100000000 + r.l; | ||
} | ||
function string_to_u8(str) { | ||
if (typeof TextEncoder === "function") { | ||
return new TextEncoder().encode(str); | ||
} | ||
str = unescape(encodeURIComponent(str)); | ||
var bytes = new Uint8Array(str.length); | ||
for (var i = 0, j = str.length; i < j; i++) { | ||
bytes[i] = str.charCodeAt(i); | ||
} | ||
return bytes; | ||
} | ||
function string16_to_key(str) { | ||
var u8 = string_to_u8(str); | ||
if (u8.length !== 16) { | ||
throw Error("Key length must be 16 bytes"); | ||
} | ||
var key = new Uint32Array(4); | ||
key[0] = _get_int(u8, 0); | ||
key[1] = _get_int(u8, 4); | ||
key[2] = _get_int(u8, 8); | ||
key[3] = _get_int(u8, 12); | ||
return key; | ||
} | ||
return { | ||
hash: hash, | ||
hash_hex: hash_hex, | ||
hash_uint: hash_uint, | ||
string16_to_key: string16_to_key, | ||
string_to_u8: string_to_u8 | ||
}; | ||
})(); | ||
var module = module || {}, exports = module.exports = SipHash; |