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Shell Programming and Scripting

Issues Masking(Encrypting) a string

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Top Forums Shell Programming and Scripting Issues Masking(Encrypting) a string
# 15  
Old 10-12-2016
openssl is the way to go. Works on all flavors systems i have.
# 16  
Old 10-13-2016
Example of using openssl:

Get encrypted version of your password:

Code:
$ export KEY=testing
$ PASS="mypassword"
$ openssl enc -a -e -aes-128-ctr -nopad -nosalt -pass env:KEY <<< "$PASS"
5o24HujBi30BYD8=


Now use value above in your script to prompt and test for the correct PASS:

Code:
export KEY=testing
read -s -p "Enter Password: " PASS
if ! [ "5o24HujBi30BYD8=" = $(openssl enc -a -e -aes-128-ctr -nopad -nosalt -pass env:KEY <<< "$PASS") ]
then
   echo "Incorrect password"
   exit 1
fi

As mentioned before the encrypted PASS is visible in the script and so is open to "brute force" attacks. Avoid dictionary words or easily guessed strings.
This User Gave Thanks to Chubler_XL For This Post:
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