How can I match my passwords against Have I Been Pwned?












1















OK, so I've downloaded all the SHA-1 hashes from Have I Been Pwned, exported everything from my password manager, and processed that into a file with one password per line. How do I match these files effectively?






linux







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migrated from stackoverflow.com 1 hour ago


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    1















    OK, so I've downloaded all the SHA-1 hashes from Have I Been Pwned, exported everything from my password manager, and processed that into a file with one password per line. How do I match these files effectively?






    linux







    share|improve this question















    migrated from stackoverflow.com 1 hour ago


    This question came from our site for professional and enthusiast programmers.


















      1












      1








      1








      OK, so I've downloaded all the SHA-1 hashes from Have I Been Pwned, exported everything from my password manager, and processed that into a file with one password per line. How do I match these files effectively?






      linux







      share|improve this question
















      OK, so I've downloaded all the SHA-1 hashes from Have I Been Pwned, exported everything from my password manager, and processed that into a file with one password per line. How do I match these files effectively?






      linux




      linux






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 22 mins ago









      Michael Homer

      46.7k8123161




      46.7k8123161










      asked 21 hours ago









      l0b0l0b0

      27.9k17118246




      27.9k17118246




      migrated from stackoverflow.com 1 hour ago


      This question came from our site for professional and enthusiast programmers.






      migrated from stackoverflow.com 1 hour ago


      This question came from our site for professional and enthusiast programmers.
























          1 Answer
          1






          active

          oldest

          votes


















          3














          Prerequisites





          • 7z, which should be in the "p7zip" package.


          • sha1sum and shred, which should be in the "coreutils" package.


          • grep from the "grep" package.


          Process





          1. Create a file with unique upper case password hashes, and a file with passwords and their corresponding hashes:



            sort -u passwords.txt | while read -r password
            
do
            
    hash="$(printf '%s' "$password" | 
            
        sha1sum | 
            
        cut -d' ' -f1 | 
            
        tr 'a-f' 'A-F')"
            
    printf '%sn' "$hash" >> hashes.txt
            
    printf '%st%sn' "$hash" "$password" >> passwords-with-hashes.txt
            
done



          2. Match your hashes to all the entries in the downloaded file:



            7z e -so pwned-passwords-sha1-ordered-by-hash-v*.7z | 
            
cut -c 1-40 | 
            
grep -Fxf hashes.txt | 
            
tee matches.txt


            Be patient - this took nearly 20 minutes on a desktop machine with an SSD!




          3. Show the passwords related to the matches:



            grep -Ff matches.txt passwords-with-hashes.txt | cut -f2



          4. Securely remove the files you've created:



            shred --remove hashes.txt matches.txt passwords.txt passwords-with-hashes.txt







          share|improve this answer























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            1 Answer
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            oldest

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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            3














            Prerequisites





            • 7z, which should be in the "p7zip" package.


            • sha1sum and shred, which should be in the "coreutils" package.


            • grep from the "grep" package.


            Process





            1. Create a file with unique upper case password hashes, and a file with passwords and their corresponding hashes:



              sort -u passwords.txt | while read -r password
              
do
              
    hash="$(printf '%s' "$password" | 
              
        sha1sum | 
              
        cut -d' ' -f1 | 
              
        tr 'a-f' 'A-F')"
              
    printf '%sn' "$hash" >> hashes.txt
              
    printf '%st%sn' "$hash" "$password" >> passwords-with-hashes.txt
              
done



            2. Match your hashes to all the entries in the downloaded file:



              7z e -so pwned-passwords-sha1-ordered-by-hash-v*.7z | 
              
cut -c 1-40 | 
              
grep -Fxf hashes.txt | 
              
tee matches.txt


              Be patient - this took nearly 20 minutes on a desktop machine with an SSD!




            3. Show the passwords related to the matches:



              grep -Ff matches.txt passwords-with-hashes.txt | cut -f2



            4. Securely remove the files you've created:



              shred --remove hashes.txt matches.txt passwords.txt passwords-with-hashes.txt







            share|improve this answer




























              3














              Prerequisites





              • 7z, which should be in the "p7zip" package.


              • sha1sum and shred, which should be in the "coreutils" package.


              • grep from the "grep" package.


              Process





              1. Create a file with unique upper case password hashes, and a file with passwords and their corresponding hashes:



                sort -u passwords.txt | while read -r password
                
do
                
    hash="$(printf '%s' "$password" | 
                
        sha1sum | 
                
        cut -d' ' -f1 | 
                
        tr 'a-f' 'A-F')"
                
    printf '%sn' "$hash" >> hashes.txt
                
    printf '%st%sn' "$hash" "$password" >> passwords-with-hashes.txt
                
done



              2. Match your hashes to all the entries in the downloaded file:



                7z e -so pwned-passwords-sha1-ordered-by-hash-v*.7z | 
                
cut -c 1-40 | 
                
grep -Fxf hashes.txt | 
                
tee matches.txt


                Be patient - this took nearly 20 minutes on a desktop machine with an SSD!




              3. Show the passwords related to the matches:



                grep -Ff matches.txt passwords-with-hashes.txt | cut -f2



              4. Securely remove the files you've created:



                shred --remove hashes.txt matches.txt passwords.txt passwords-with-hashes.txt







              share|improve this answer


























                3












                3








                3







                Prerequisites





                • 7z, which should be in the "p7zip" package.


                • sha1sum and shred, which should be in the "coreutils" package.


                • grep from the "grep" package.


                Process





                1. Create a file with unique upper case password hashes, and a file with passwords and their corresponding hashes:



                  sort -u passwords.txt | while read -r password
                  
do
                  
    hash="$(printf '%s' "$password" | 
                  
        sha1sum | 
                  
        cut -d' ' -f1 | 
                  
        tr 'a-f' 'A-F')"
                  
    printf '%sn' "$hash" >> hashes.txt
                  
    printf '%st%sn' "$hash" "$password" >> passwords-with-hashes.txt
                  
done



                2. Match your hashes to all the entries in the downloaded file:



                  7z e -so pwned-passwords-sha1-ordered-by-hash-v*.7z | 
                  
cut -c 1-40 | 
                  
grep -Fxf hashes.txt | 
                  
tee matches.txt


                  Be patient - this took nearly 20 minutes on a desktop machine with an SSD!




                3. Show the passwords related to the matches:



                  grep -Ff matches.txt passwords-with-hashes.txt | cut -f2



                4. Securely remove the files you've created:



                  shred --remove hashes.txt matches.txt passwords.txt passwords-with-hashes.txt







                share|improve this answer













                Prerequisites





                • 7z, which should be in the "p7zip" package.


                • sha1sum and shred, which should be in the "coreutils" package.


                • grep from the "grep" package.


                Process





                1. Create a file with unique upper case password hashes, and a file with passwords and their corresponding hashes:



                  sort -u passwords.txt | while read -r password
                  
do
                  
    hash="$(printf '%s' "$password" | 
                  
        sha1sum | 
                  
        cut -d' ' -f1 | 
                  
        tr 'a-f' 'A-F')"
                  
    printf '%sn' "$hash" >> hashes.txt
                  
    printf '%st%sn' "$hash" "$password" >> passwords-with-hashes.txt
                  
done



                2. Match your hashes to all the entries in the downloaded file:



                  7z e -so pwned-passwords-sha1-ordered-by-hash-v*.7z | 
                  
cut -c 1-40 | 
                  
grep -Fxf hashes.txt | 
                  
tee matches.txt


                  Be patient - this took nearly 20 minutes on a desktop machine with an SSD!




                3. Show the passwords related to the matches:



                  grep -Ff matches.txt passwords-with-hashes.txt | cut -f2



                4. Securely remove the files you've created:



                  shred --remove hashes.txt matches.txt passwords.txt passwords-with-hashes.txt








                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 21 hours ago









                l0b0l0b0

                27.9k17118246




                27.9k17118246






























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