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prad001
Obsidian | Level 7

Hey Guys, I am trying to encrypt the ssn and fname variables using the below code; The ssn seems to be working, but not the fname. Any suggestions or tweaks for making this work?

%let ssn_enc=Y*Z$%^WX&(;
%let ssn_pass=1029384756;

%let name_enc=!@#$%^&*()*^%$#@!%^&()^%$#;
%let name_pass=ABCDEFGHIJKLMNOPQRSTUVWXYZ;

data new;
    input fname $8. ssn $9;
    cards;
John 123456789
daniel 851295790
steve 473967594
becky 203954769
;
run;

data new1;
    set new;
    length encrypt_ssn $9. encrypt_fname $10.; /* Length of encrypted variables */

    /* Encrypt SSN */
    encrypt_ssn = '';
    do i=1 to 9;
        encrypt_ssn = encrypt_ssn || translate(strip(substr(ssn,i,1)), symget('ssn_pass'), symget('ssn_enc'));
    end;

    /* Encrypt fname */
    encrypt_fname = '';
    do i=1 to 8; 
        encrypt_fname = encrypt_fname || translate(strip(substr(fname,i,1)), symget('name_pass'), symget('name_enc'));
    end;

run;
1 ACCEPTED SOLUTION

Accepted Solutions
Quentin
Super User

If you run PROC CONTENTS and PROC PRINT on work.new, you'll see that your first step has not created the dataset you are hoping for.  Perhaps try:

 

data new;
    input fname : $8.  ssn : $9.;
    cards;
John 123456789
daniel 851295790
steve 473967594
becky 203954769
;
run;

Then you can move on to debugging the second step.  You don't need to loop over each character.  You can just call TRANSLATE once, like:

 

data want ;
  set sashelp.class ;
  name2=translate(upcase(name),"!@#$%^&*()*^%$#@!%^&()^%$#","ABCDEFGHIJKLMNOPQRSTUVWXYZ") ;
  put name= name2= ;
run ;
BASUG is hosting free webinars Next up: Don Henderson presenting on using hash functions (not hash tables!) to segment data on June 12. Register now at the Boston Area SAS Users Group event page: https://www.basug.org/events.

View solution in original post

1 REPLY 1
Quentin
Super User

If you run PROC CONTENTS and PROC PRINT on work.new, you'll see that your first step has not created the dataset you are hoping for.  Perhaps try:

 

data new;
    input fname : $8.  ssn : $9.;
    cards;
John 123456789
daniel 851295790
steve 473967594
becky 203954769
;
run;

Then you can move on to debugging the second step.  You don't need to loop over each character.  You can just call TRANSLATE once, like:

 

data want ;
  set sashelp.class ;
  name2=translate(upcase(name),"!@#$%^&*()*^%$#@!%^&()^%$#","ABCDEFGHIJKLMNOPQRSTUVWXYZ") ;
  put name= name2= ;
run ;
BASUG is hosting free webinars Next up: Don Henderson presenting on using hash functions (not hash tables!) to segment data on June 12. Register now at the Boston Area SAS Users Group event page: https://www.basug.org/events.

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