diff --git a/decimal.js b/decimal.js
index fd638fb..f0ccd19 100644
--- a/decimal.js
+++ b/decimal.js
@@ -12,13 +12,14 @@
      */
 
 
-    var convertBase, crypto, DecimalConstructor, noConflict,
-        toString = Object.prototype.toString,
-        outOfRange,
-        id = 0,
+    var convertBase, DecimalConstructor, noConflict,
+        crypto = global['crypto'],
         external = true,
+        id = 0,
         mathfloor = Math.floor,
         mathpow = Math.pow,
+        outOfRange,
+        toString = Object.prototype.toString,
         BASE = 1e7,
         LOGBASE = 7,
         NUMERALS = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_',
@@ -3950,24 +3951,24 @@
 
     // AMD.
     if ( typeof define == 'function' && define.amd ) {
-        crypto = global['crypto'];
 
         define(function () {
-
             return DecimalConstructor;
         });
 
-    // Node and other CommonJS-like environments that support module.exports.
-    } else if ( typeof module != 'undefined' && module && module.exports ) {
+    // Node and other environments that support module.exports.
+    } else if ( typeof module != 'undefined' && module.exports ) {
         module.exports = DecimalConstructor;
 
-        if ( typeof require == 'function' ) {
-            crypto = require('crypto');
+        if ( !crypto ) {
+
+            try {
+                crypto = require('crypto');
+            } catch (e) {}
         }
 
     // Browser.
     } else {
-        crypto = global['crypto'];
         noConflict = global['Decimal'];
 
         DecimalConstructor['noConflict'] = function () {
diff --git a/decimal.min.js b/decimal.min.js
index 18dbb87..f1efeda 100644
--- a/decimal.min.js
+++ b/decimal.min.js
@@ -1,2 +1,2 @@
 /*! decimal.js v3.0.0 https://github.com/MikeMcl/decimal.js/LICENCE */
-(function(n){"use strict";function l(n){for(var t,e,f=1,r=n.length,u=n[0]+"";f<r;f++){for(t=n[f]+"",e=i-t.length;e--;)t="0"+t;u+=t}for(r=u.length;u.charAt(--r)=="0";);return u.slice(0,r+1||1)}function g(n,t,r,u){for(var s,c,f,o=1,e=n[0];e>=10;e/=10,o++);return e=t-o,e<0?(e+=i,s=0):(s=Math.ceil((e+1)/i),e%=i),o=h(10,i-e),f=n[s]%o|0,u==null?e<3?(e==0?f=f/100|0:e==1&&(f=f/10|0),c=r<4&&f==99999||r>3&&f==49999||f==5e4||f==0):c=(r<4&&f+1==o||r>3&&f+1==o/2)&&(n[s+1]/o/100|0)==h(10,e-2)-1||(f==o/2||f==0)&&(n[s+1]/o/100|0)==0:e<4?(e==0?f=f/1e3|0:e==1?f=f/100|0:e==2&&(f=f/10|0),c=(u||r<4)&&f==9999||!u&&r>3&&f==4999):c=((u||r<4)&&f+1==o||!u&&r>3&&f+1==o/2)&&(n[s+1]/o/1e3|0)==h(10,e-3)-1,c}function k(n,t,i){var r=n.constructor;return t==null||((c=t<0||t>8)||t!==0&&(r.errors?parseInt:parseFloat)(t)!=t)&&!e(r,"rounding mode",t,i,0)?r.rounding:t|0}function d(n,t,i,r){var u=n.constructor;return!(c=t<(r||0)||t>=et+1)&&(t===0||(u.errors?parseInt:parseFloat)(t)==t)||e(u,"argument",t,i,0)}function rt(n,t){var c,v,k,a,i,e,o,y=0,d=0,p=0,u=n.constructor,w=u.ONE,nt=u.rounding,b=u.precision;if(!n.c||!n.c[0]||n.e>17)return new u(n.c?n.c[0]?n.s<0?0:1/0:w:n.s?n.s<0?0:n:NaN);for(t==null?(f=!1,i=b):i=t,o=new u(.03125);n.e>-2;)n=n.times(o),p+=5;for(v=Math.log(h(2,p))/Math.LN10*2+5|0,i+=v,c=a=e=new u(w),u.precision=i;;){if(a=r(a.times(n),i,1),c=c.times(++d),o=e.plus(s(a,c,i,1)),l(o.c).slice(0,i)===l(e.c).slice(0,i)){for(k=p;k--;)e=r(e.times(e),i,1);if(t==null)if(y<3&&g(e.c,i-v,nt,y))u.precision=i+=10,c=a=o=new u(w),d=0,y++;else return r(e,u.precision=b,nt,f=!0);else return u.precision=b,e}e=o}}function nt(n,t,i,u){var f,o,s=n.constructor,e=(n=new s(n)).e;if(t==null?i=0:(r(n,++t,i),i=u?t:t+n.e-e),e=n.e,f=l(n.c),u==1||u==2&&(t<=e||e<=s.toExpNeg)){for(;f.length<i;f+="0");f.length>1&&(f=f.charAt(0)+"."+f.slice(1));f+=(e<0?"e":"e+")+e}else{if(u=f.length,e<0){for(o=i-u;++e;f="0"+f);f="0."+f}else if(++e>u){for(o=i-e,e-=u;e--;f+="0");o>0&&(f+=".")}else 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