Huge News!Announcing our $40M Series B led by Abstract Ventures.Learn More →
Socket
Sign inDemoInstall
Socket
Sign inDemoInstall

seedrandom

Package Overview
Dependencies
Maintainers
1
Versions
21
Alerts
File Explorer

Advanced tools

License
Socket logo

Install Socket

Detect and block malicious and high-risk dependencies

Install

seedrandom - npm Package Compare versions

Comparing version 2.4.4 to 3.0.0

2

component.json
{
"name": "seedrandom",
"version": "2.4.4",
"version": "3.0.0",
"description": "Seeded random number generator for Javascript",

@@ -5,0 +5,0 @@ "repository": "davidbau/seedrandom",

6

lib/alea.js

@@ -14,6 +14,6 @@ // A port of an algorithm by Johannes Baagøe <baagoe@baagoe.com>, 2010

// furnished to do so, subject to the following conditions:
//
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

@@ -83,3 +83,3 @@ // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

var mash = function(data) {
data = data.toString();
data = String(data);
for (var i = 0; i < data.length; i++) {

@@ -86,0 +86,0 @@ n += data.charCodeAt(i);

2

lib/alea.min.js

@@ -1,1 +0,1 @@

!function(n,t,e){function o(n){var s,t=this,e=(s=4022871197,function(n){n=n.toString();for(var t=0;t<n.length;t++){var e=.02519603282416938*(s+=n.charCodeAt(t));e-=s=e>>>0,s=(e*=s)>>>0,s+=4294967296*(e-=s)}return 2.3283064365386963e-10*(s>>>0)});t.next=function(){var n=2091639*t.s0+2.3283064365386963e-10*t.c;return t.s0=t.s1,t.s1=t.s2,t.s2=n-(t.c=0|n)},t.c=1,t.s0=e(" "),t.s1=e(" "),t.s2=e(" "),t.s0-=e(n),t.s0<0&&(t.s0+=1),t.s1-=e(n),t.s1<0&&(t.s1+=1),t.s2-=e(n),t.s2<0&&(t.s2+=1),e=null}function u(n,t){return t.c=n.c,t.s0=n.s0,t.s1=n.s1,t.s2=n.s2,t}function s(n,t){var e=new o(n),s=t&&t.state,r=e.next;return r.int32=function(){return 4294967296*e.next()|0},r.double=function(){return r()+11102230246251565e-32*(2097152*r()|0)},r.quick=r,s&&("object"==typeof s&&u(s,e),r.state=function(){return u(e,{})}),r}t&&t.exports?t.exports=s:e&&e.amd?e(function(){return s}):this.alea=s}(0,"object"==typeof module&&module,"function"==typeof define&&define);
!function(n,t,e){function u(n){var s,t=this,e=(s=4022871197,function(n){n=String(n);for(var t=0;t<n.length;t++){var e=.02519603282416938*(s+=n.charCodeAt(t));e-=s=e>>>0,s=(e*=s)>>>0,s+=4294967296*(e-=s)}return 2.3283064365386963e-10*(s>>>0)});t.next=function(){var n=2091639*t.s0+2.3283064365386963e-10*t.c;return t.s0=t.s1,t.s1=t.s2,t.s2=n-(t.c=0|n)},t.c=1,t.s0=e(" "),t.s1=e(" "),t.s2=e(" "),t.s0-=e(n),t.s0<0&&(t.s0+=1),t.s1-=e(n),t.s1<0&&(t.s1+=1),t.s2-=e(n),t.s2<0&&(t.s2+=1),e=null}function o(n,t){return t.c=n.c,t.s0=n.s0,t.s1=n.s1,t.s2=n.s2,t}function s(n,t){var e=new u(n),s=t&&t.state,r=e.next;return r.int32=function(){return 4294967296*e.next()|0},r.double=function(){return r()+11102230246251565e-32*(2097152*r()|0)},r.quick=r,s&&("object"==typeof s&&o(s,e),r.state=function(){return o(e,{})}),r}t&&t.exports?t.exports=s:e&&e.amd?e(function(){return s}):this.alea=s}(0,"object"==typeof module&&module,"function"==typeof define&&define);

4

package.json
{
"name": "seedrandom",
"version": "2.4.4",
"version": "3.0.0",
"description": "Seeded random number generator for Javascript.",

@@ -56,2 +55,3 @@ "main": "index.js",

}
}

68

README.md

@@ -9,7 +9,7 @@ seedrandom.js

Version 2.4.4
Version 3.0.0
Author: David Bau
Date: 2018-08-14
Date: 2019-03-03

@@ -23,3 +23,3 @@ Can be used as a plain script, a Node.js module or an AMD module.

```html
<script src="//cdnjs.cloudflare.com/ajax/libs/seedrandom/2.4.4/seedrandom.min.js">
<script src="//cdnjs.cloudflare.com/ajax/libs/seedrandom/3.0.0/seedrandom.min.js">
</script>

@@ -29,29 +29,43 @@ ```

```js
// Sets Math.random to a PRNG initialized using the given explicit seed.
Math.seedrandom('hello.');
console.log(Math.random()); // Always 0.9282578795792454
console.log(Math.random()); // Always 0.3752569768646784
// Sets Math.random to an ARC4-based PRNG that is autoseeded using the
// current time, dom state, and other accumulated local entropy.
// The generated seed string is returned.
Math.seedrandom();
console.log(Math.random()); // Reasonably unpredictable.
// Seeds using the given explicit seed mixed with accumulated entropy.
Math.seedrandom('added entropy.', { entropy: true });
console.log(Math.random()); // As unpredictable as added entropy.
// Use "new" to create a local prng without altering Math.random.
// Make a predictable pseudorandom number generator.
var myrng = new Math.seedrandom('hello.');
console.log(myrng()); // Always 0.9282578795792454
console.log(myrng()); // Always 0.3752569768646784
// Use "quick" to get only 32 bits of randomness in a float.
console.log(myrng.quick()); // Always 0.3752569768112153
console.log(myrng.quick()); // Always 0.7316977467853576
// Use "int32" to get a 32 bit (signed) integer
console.log(myrng.int32()); // Always 986220731
console.log(myrng.int32()); // Always 1966374204
// Calling seedrandom with no arguments creates an ARC4-based PRNG
// that is autoseeded using the current time, dom state, and other
// accumulated local entropy.
var prng = new Math.seedrandom();
console.log(prng()); // Reasonably unpredictable.
// Seeds using the given explicit seed mixed with accumulated entropy.
prng = new Math.seedrandom('added entropy.', { entropy: true });
console.log(prng()); // As unpredictable as added entropy.
// Warning: if you call Math.seedrandom without `new`, it replaces
// Math.random with the predictable new Math.seedrandom(...), as follows:
Math.seedrandom('hello.');
console.log(Math.random()); // Always 0.9282578795792454
console.log(Math.random()); // Always 0.3752569768646784
```
**Note**: calling `Math.seedrandom('constant')` without `new` will make
`Math.random()` predictable globally, which is intended to be useful for
derandomizing code for testing, but should not be done in a production library.
If you need a local seeded PRNG, use `myrng = new Math.seedrandom('seed')`
instead. For example, [cryptico](https://www.npmjs.com/package/cryptico),
an RSA encryption package, [uses the wrong form](
https://github.com/wwwtyro/cryptico/blob/9291ece6/api.js#L264),
and thus secretly makes `Math.random()` perfectly predictable.
The cryptico library (and any other library that does this)
should not be trusted in a security-sensitive application.
Other Fast PRNG Algorithms

@@ -65,3 +79,3 @@ --------------------------

```html
<script src="//cdnjs.cloudflare.com/ajax/libs/seedrandom/2.4.4/lib/alea.min.js">
<script src="//cdnjs.cloudflare.com/ajax/libs/seedrandom/3.0.0/lib/alea.min.js">
</script>

@@ -104,4 +118,4 @@ ```

Node.js usage
-------------
CJS / Node.js usage
-------------------

@@ -135,3 +149,6 @@ ```

Starting in version 3.0.0, when using via require('seedrandom'), the global
`Math.seedrandom` is no longer available.
Require.js usage

@@ -158,3 +175,3 @@ ----------------

```html
<script src=//cdnjs.cloudflare.com/ajax/libs/seedrandom/2.4.4/seedrandom.min.js>
<script src=//cdnjs.cloudflare.com/ajax/libs/seedrandom/3.0.0/seedrandom.min.js>
</script>

@@ -252,2 +269,3 @@ <!-- Seeds using urandom bits from a server. -->

* Version 2.4.4 avoids strict mode problem with global this reference.
* Version 3.0.0 removes Math.seedrandom for require('seedrandom') users.

@@ -254,0 +272,0 @@ The standard ARC4 key scheduler cycles short keys, which means that

5

seedrandom.js

@@ -108,3 +108,2 @@ /*

}
math['seed' + rngname] = seedrandom;

@@ -245,4 +244,8 @@ //

define(function() { return seedrandom; });
} else {
// When included as a plain script, set up Math.seedrandom global.
math['seed' + rngname] = seedrandom;
}
// End anonymous scope, and pass initial values.

@@ -249,0 +252,0 @@ })(

2

seedrandom.min.js

@@ -1,1 +0,1 @@

!function(a,b){var l,c=eval("this"),d=256,g="random",h=b.pow(d,6),i=b.pow(2,52),j=2*i,k=d-1;function m(r,t,e){var u=[],f=q(function n(r,t){var e,o=[],i=typeof r;if(t&&"object"==i)for(e in r)try{o.push(n(r[e],t-1))}catch(n){}return o.length?o:"string"==i?r:r+"\0"}((t=1==t?{entropy:!0}:t||{}).entropy?[r,s(a)]:null==r?function(){try{var n;return l&&(n=l.randomBytes)?n=n(d):(n=new Uint8Array(d),(c.crypto||c.msCrypto).getRandomValues(n)),s(n)}catch(n){var r=c.navigator,t=r&&r.plugins;return[+new Date,c,t,c.screen,s(a)]}}():r,3),u),p=new n(u),m=function(){for(var n=p.g(6),r=h,t=0;n<i;)n=(n+t)*d,r*=d,t=p.g(1);for(;j<=n;)n/=2,r/=2,t>>>=1;return(n+t)/r};return m.int32=function(){return 0|p.g(4)},m.quick=function(){return p.g(4)/4294967296},m.double=m,q(s(p.S),a),(t.pass||e||function(n,r,t,e){return e&&(e.S&&o(e,p),n.state=function(){return o(p,{})}),t?(b[g]=n,r):n})(m,f,"global"in t?t.global:this==b,t.state)}function n(n){var r,t=n.length,u=this,e=0,o=u.i=u.j=0,i=u.S=[];for(t||(n=[t++]);e<d;)i[e]=e++;for(e=0;e<d;e++)i[e]=i[o=k&o+n[e%t]+(r=i[e])],i[o]=r;(u.g=function(n){for(var r,t=0,e=u.i,o=u.j,i=u.S;n--;)r=i[e=k&e+1],t=t*d+i[k&(i[e]=i[o=k&o+r])+(i[o]=r)];return u.i=e,u.j=o,t})(d)}function o(n,r){return r.i=n.i,r.j=n.j,r.S=n.S.slice(),r}function q(n,r){for(var t,e=n+"",o=0;o<e.length;)r[k&o]=k&(t^=19*r[k&o])+e.charCodeAt(o++);return s(r)}function s(n){return String.fromCharCode.apply(0,n)}if(b["seed"+g]=m,q(b.random(),a),"object"==typeof module&&module.exports){module.exports=m;try{l=require("crypto")}catch(n){}}else"function"==typeof define&&define.amd&&define(function(){return m})}([],Math);
!function(a,b){var l,c=eval("this"),d=256,g="random",h=b.pow(d,6),i=b.pow(2,52),j=2*i,k=d-1;function m(r,t,e){var u=[],f=q(function n(r,t){var e,o=[],i=typeof r;if(t&&"object"==i)for(e in r)try{o.push(n(r[e],t-1))}catch(n){}return o.length?o:"string"==i?r:r+"\0"}((t=1==t?{entropy:!0}:t||{}).entropy?[r,s(a)]:null==r?function(){try{var n;return l&&(n=l.randomBytes)?n=n(d):(n=new Uint8Array(d),(c.crypto||c.msCrypto).getRandomValues(n)),s(n)}catch(n){var r=c.navigator,t=r&&r.plugins;return[+new Date,c,t,c.screen,s(a)]}}():r,3),u),p=new n(u),m=function(){for(var n=p.g(6),r=h,t=0;n<i;)n=(n+t)*d,r*=d,t=p.g(1);for(;j<=n;)n/=2,r/=2,t>>>=1;return(n+t)/r};return m.int32=function(){return 0|p.g(4)},m.quick=function(){return p.g(4)/4294967296},m.double=m,q(s(p.S),a),(t.pass||e||function(n,r,t,e){return e&&(e.S&&o(e,p),n.state=function(){return o(p,{})}),t?(b[g]=n,r):n})(m,f,"global"in t?t.global:this==b,t.state)}function n(n){var r,t=n.length,u=this,e=0,o=u.i=u.j=0,i=u.S=[];for(t||(n=[t++]);e<d;)i[e]=e++;for(e=0;e<d;e++)i[e]=i[o=k&o+n[e%t]+(r=i[e])],i[o]=r;(u.g=function(n){for(var r,t=0,e=u.i,o=u.j,i=u.S;n--;)r=i[e=k&e+1],t=t*d+i[k&(i[e]=i[o=k&o+r])+(i[o]=r)];return u.i=e,u.j=o,t})(d)}function o(n,r){return r.i=n.i,r.j=n.j,r.S=n.S.slice(),r}function q(n,r){for(var t,e=n+"",o=0;o<e.length;)r[k&o]=k&(t^=19*r[k&o])+e.charCodeAt(o++);return s(r)}function s(n){return String.fromCharCode.apply(0,n)}if(q(b.random(),a),"object"==typeof module&&module.exports){module.exports=m;try{l=require("crypto")}catch(n){}}else"function"==typeof define&&define.amd?define(function(){return m}):b["seed"+g]=m}([],Math);
test/altprng.html
test/autoseed.html
test/bitgen.js
test/browserified.html
test/browserified.js
test/cryptotest.js
test/lib/qunit.css
test/lib/qunit.js
test/lib/require.js
test/newapi.html
test/nodetest.js
test/options.html
test/out/dieharder-report.txt
test/prngtest.js
test/qunitassert.js
test/require.html
test/run_dieharder.sh
test/state.html
.travis.yml

Sorry, the diff of this file is not supported yet

SocketSocket SOC 2 Logo

Product

  • Package Alerts
  • Integrations
  • Docs
  • Pricing
  • FAQ
  • Roadmap
  • Changelog

About

Packages

npm

Go

Maven

PyPI

Rubygems

Stay in touch

Get open source security insights delivered straight into your inbox.

  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc