552 each password. Recall that \pcode{123456} is a popular

   552 each password. Recall that \pcode{123456} is a popular

   553 password that is most likely used by several of your users

   553 password that is most likely used by several of your users

   554 (especially if the database contains millions of entries). If

   554 (especially if the database contains millions of entries). If

   555 we use no salt or one global salt, all hash-values will be the

   555 we use no salt or one global salt, all hash-values will be the

   556 same for this password. So if a hacker is in the business of

   556 same for this password. So if a hacker is in the business of

   558 to concentrate on those very popular passwords. This is not

   558 to concentrate on those very popular passwords. This is not

   559 possible if each password gets its own salt: since we assume

   559 possible if each password gets its own salt: since we assume

   560 the salt is generated randomly, each version of \pcode{123456}

   560 the salt is generated randomly, each version of \pcode{123456}

   561 will be associated with a different hash-value. This will

   561 will be associated with a different hash-value. This will

   562 make the life harder for an attacker.

   562 make the life harder for an attacker.