code: function(buffer) {
          var inputSize = buffer.length;
  
          // Holds an array that represents the count of various characters.
          var charCount = [];
  
          // Loop through the bytes and increase charCount.
          for (var a = 0; a < inputSize; a++) {
              var temp = buffer.readUInt8(a);
  
              if (charCount[temp] !== undefined) {
                  charCount[temp]++;
              }
              else {
                  charCount[temp] = 1;
              }
          }
  
          // The average number of times a specific character should occur.
          var expectedCount = inputSize / 256;
  
          var chiSquare = 0;
  
          for (var i = 0; i < 256; i++) {
              // Ideally this would be close to 0.
              a = (charCount[i] !== undefined ? charCount[i] : 0) - expectedCount;
  
              chiSquare += (a * a) / expectedCount;
          }
  
          return calculateChiSquareProbability(parseFloat(chiSquare.toFixed(2)), 255);
      }
docs: Calculates a Chi-square distribution over a sequence of bytes within the Buffer.
  The result is a float representing the probability of how frequently
  a truly random sequence of bytes would exceed the calculated value.
  
  Ideally this float should have a value of 0.5. If so, the given Buffer contained random data.
  
  @param {Buffer} buffer
  @return {Number}