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Found 2 results

  1. I've been having trouble understanding what exactly the salt argument and its purpose are. Can someone explain it in context (give an example?)? I've also been having some trouble with step 4 in the example in the book. I'm using phpMyAdmin and when I type in the code, it says that 'nacl' is not identified. Is this normal? If so, is there a way I can get around it or do I have to use the shell? Thanks!
  2. Hi, I have been following through the exercises in your book, and until now have been getting on fine. However I don't seem to be able to salt the password in the way described in the book in Chapter 7, page 238-239. I run the column creation queries; ALTER TABLE customers ADD COLUMN pin VARBINARY(16) NOT NULL; ALTER TABLE customers ADD COLUMN nacl CHAR(20) NOT NULL; Then I run the salt and password setting on one of the columns; UPDATE customers SET nacl = SUBSTRING(MD5(RAND()), -20) WHERE customer_id=1; UPDATE customers SET pin=AES_ENCRYPT(1234, nacl) WHERE customer_id=1;
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