![\"file](\"https:\/\/visworlditsolution.files.wordpress.com\/2017\/03\/5-free-file-encryption-software-geekomad.jpg\")
<\/p>\nHello guys today we will learn how to configure key based Security in RedHat Linux. its a very simple process you just Follow my Simple Steps<\/p>\n
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Step 1 here i Create a.txt File and put something text matter in this file<\/strong><\/span><\/p>\n Step 2 then we will encrypt our file below commands<\/strong><\/span><\/p>\n Step 3 now we can get original file data through below commands<\/strong><\/span><\/p>\n now suppose we have multi pal file and we want to protract \u00a0all file then we can use digital key.if we will create digital key then again to again no need to create password any time we can apply same password on all file through digital key .<\/p>\n Step 4 then we will Create Digital key through below Commands<\/strong><\/span><\/p>\n Step 5 here we will look our file key below Commands<\/span><\/strong><\/p>\n Step 6 now we will provide key on file through below Commands<\/strong><\/span><\/p>\n Step 7 we can also broken file in parts through gpg commands\u00a0<\/span><\/strong><\/p>\n Step 6 we can combine our file below Commands\u00a0<\/span><\/strong><\/p>\n if you have any problem in this process so please Comments here i will solve your problem<\/p>\n Thank you<\/p>\n by Vishnu Sharma<\/p>\n","protected":false},"excerpt":{"rendered":"[root@localhost exp]# vim a.txt<\/strong><\/span>\nHello this is my Digital key signature demo in linux redhat Server\n~\n~\n~\n~<\/span>\n:wq<\/strong><\/span><\/pre>\n[root@localhost exp]# gpg -c a.txt\nEnter passphrase:<\/span> redhat\nRepeat passphrase:<\/span> redhat\n(Note-Here we will remove a.txt file then we have a.txt.gpg file. this is a encrypt file )\n[root@localhost ~]# rm -rf a.txt<\/span>\n(Note- now we will open a.txt.gpg file then we will found encrypt data )\n[root@localhost ~]# cat a.txt.gpg<\/span>\n?Q]?q*k?`????@?E?x??[???F??{??6Q??\n<\/span><\/span>\n<\/span><\/strong><\/pre>\n[root@localhost ~]# gpg -d a.txt.gpg<\/span><\/strong>\ngpg: CAST5 encrypted data\nEnter passphrase:redhat\nHello this is my Digital key signature demo in linux redhat Server\n(Note- if we want remove encrypt security we will used below Commands)\n[root@localhost exp]# gpg a.txt.gpg<\/span>\ngpg: CAST5 encrypted data\ngpg: encrypted with 1 passphrase\ngpg: WARNING: message was not integrity protected\n[root@localhost exp]# ls<\/span>\na.txt a.txt.gpg\n\n<\/span><\/span><\/span><\/span><\/span><\/pre>\n[root@localhost exp]# gpg --gen-key<\/strong><\/span>\ngpg (GnuPG) 1.4.5; Copyright (C) 2006 Free Software Foundation, Inc.\nThis program comes with ABSOLUTELY NO WARRANTY.\nThis is free software, and you are welcome to redistribute it\nunder certain conditions. See the file COPYING for details.\nPlease select what kind of key you want:\n (1) DSA and Elgamal (default)\n (2) DSA (sign only)\n (5) RSA (sign only)\nYour selection?<\/span> 1 (note- here we will select 1 )<\/span><\/strong>\nDSA keypair will have 1024 bits.\nELG-E keys may be between 1024 and 4096 bits long.\nWhat keysize do you want? (2048) 2048 (note- here we will put our key bits size)<\/span><\/strong>\nRequested keysize is 2048 bits\nPlease specify how long the key should be valid.\n 0 = key does not expire\n <n> = key expires in n days\n <n>w = key expires in n weeks\n <n>m = key expires in n months\n <n>y = key expires in n years\nKey is valid for? (0)<\/span> 0 (notes- here we will select 0 becouse we want not Expiry key )<\/span><\/strong>\nKey does not expire at all\nIs this correct? (y\/N)<\/span> y\nYou need a user ID to identify your key; the software constructs the user ID\nfrom the Real Name, Comment and Email Address in this form:\n \"Heinrich Heine (Der Dichter) <heinrichh@duesseldorf.de>\"\nReal name:<\/strong><\/span><\/span> vishnu sharma (note- here we will put our name email Address and something Comments)\nEmail address: vlalitsharma@gmailcom \nComment: this is digital key password<\/strong><\/span>\nYou selected this USER-ID:\n \"vishnu sharma (this is digital key password) <vlalitsharma@gmailcom>\"\nChange (N)ame, (C)omment, (E)mail or (O)kay\/(Q)uit?<\/span> o (note- here will press o for okay)<\/strong>\nou need a Passphrase to protect your secret key. (Note- here we will put our password )<\/strong><\/span>\nWe need to generate a lot of random bytes. It is a good idea to perform\nsome other action (type on the keyboard, move the mouse, utilize the\ndisks) during the prime generation; this gives the random number\ngenerator a better chance to gain enough entropy.\n.++++++++++++++++++++++++++++++.++++++++++..+++++++++++++++.+++++++++++++++++++++++++++disks) during the prime generation; this gives the random number\ngenerator a better chance to gain enough entropy.\n.++++++++++..+++++++++++++++.++++++++++..+++++++++++++++..++++++++++..++++++++++++++++++\ngpg: key 52747DF7 marked as ultimately trusted\npublic and secret key created and signed.\ngpg: checking the trustdb\ngpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model\ngpg: depth: 0 valid: 2 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 2u\npub 1024D\/52747DF7 2017-03-10\n Key fingerprint = B00B 24CC CA58 9DBB AC29 DFB5 7DBF FE59 5274 7DF7\nuid vishnu sharma (this is digital key password) <vlalitsharma@gmailcom>\nsub 2048g\/1C25308A 2017-03-10\n<\/span><\/span><\/pre>\n[root@localhost exp]# gpg --list-key<\/strong><\/span>\n\/root\/.gnupg\/pubring.gpg\n------------------------\npub 1024D\/5B148026 2017-03-09\nuid vishnu sharma (hindiitsolution.com) <vlalitsharma@gmail.com>\nsub 2048g\/7DB30C64 2017-03-0<\/span>9<\/pre>\n[root@localhost exp]# gpg -e -r 'vlalitsharma@gmail.com' a.txt<\/strong><\/span>(Note- here we will gave file name which we want protract)<\/span><\/pre>\n[root@localhost exp]# gpgsplit a.txt.gpg\n[root@localhost exp]# ls<\/strong><\/span>\n000001-001.pk_enc 000002-018.encrypted_mdc a.txt a.txt.gpg<\/span><\/pre>\n[root@localhost exp]# cat 000001-001.pk_enc 000002-018.encrypted_mdc >a.txt\n[root@localhost exp]# ls<\/strong><\/span>\n000001-001.pk_enc 000002-018.encrypted_mdc a.txt <\/span><\/pre>\n