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Professional Encryption Software

Professional Encryption Software. FINECRYPT 8.1. Contents. Introduction Features Installation Tests Results Conclusion. Cryptography Introduction. Study of secret writing

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Professional Encryption Software

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  1. Professional Encryption Software FINECRYPT 8.1

  2. Contents • Introduction • Features • Installation • Tests • Results • Conclusion

  3. Cryptography Introduction • Study of secret writing • Storing information in a form which allows it to be revealed to those you wish to see it yet hides it from all others • Effective way to reliably protect confidential data

  4. Benefits of Cryptographic Technologies? • Data secrecy • Data integrity • Authentication of message originator • Non-repudiation

  5. Why FineCrypt? • Security software application • Enables to securely store the data using strong encryption • Written in Assembly Language • 1.5 Times faster the other encryption tools • Uses Symmetric Key Encryption i.e the sender and receiver of a message know and use the same secret key

  6. Awards of FineCrypt

  7. Features? • Supports 10 Encryption Algorithms i.e. AES, Blowfish, 3DES etc • Uses 4 Encryption Modes i.e. ECB, CBC, CFB and OFB • Only program which checks the correctness of encryption • FineCrypt Communicator - Exchanging encrypted files and encryption keys with other users

  8. Features (cont) • Key Management using key manager • Encrypt several files either into single encrypted archive or into different encrypted files • Encrypt files both with the password and with the key • Permanent File Deletion using “Wipe” utility

  9. 10 Encryption Algorithms

  10. Encryption Modes Used with block cipher to encrypt a message of arbitrary length • Electronic Cookbook Mode (ECM) • Cipher Block Chaining mode (CBC) • Cipher Feedback mode (CFB) • Output Feedback mode (OFB)

  11. Reference & System Support • Download Sources • www.finecrypt.net • www.download.com • System Support • Windows 9x • Windows 2000 • Windows XP • Windows 2003

  12. Once fcinst.exe downloaded on the machine, click the package to start installation • You will come up with the following screen. Click continue to proceed

  13. Click Next

  14. Read the license Agreement and if you agree the terms and condition then proceed

  15. Choose the destination location where you want to install FineCrypt

  16. After giving the destination location, click next to proceed

  17. Click Finish to restart the computer

  18. ArcViewer Window

  19. Encryption using Password • Click with the right mouse button on selected files; from the FineCrypt submenu choose "Encrypt with password" menu item

  20. Enter the passphrase you want to encrypt a file

  21. Choose Encryption Algorithm & Encryption Mode. In this example, we selected the algorithm 3DES with CFB mode

  22. Then click on Encrypt button and save the file with .fca format. You will get the encrypted file, as shown highlighted

  23. Decryption using Password • In order to decrypt a file or folder, click the desired source

  24. Click the file you want to decrypt. FineCrypt will ask you for Password. Enter the Password

  25. By pressing the Ok button you will get the decrypted file

  26. Encryption using Key • Right Click the file or folder you want to Encrypt. Encrypt the file using “Encrypt with Key…” option

  27. Click on Settings and then select the algorithm and mode to encrypt the file

  28. Click on Password Button and generate the key. Then Save the key, specify name and location for encrypted file and then press Encrypt button

  29. You will get the encrypted file along with the key

  30. Decryption using Key • In order to decrypt a file or folder, open the encrypted file and you will get screen above

  31. Click the “Read…” button and select the saved key which was used to encrypt the file and then press ok

  32. You can see the decrypted file above

  33. Key Manager Interface

  34. Checking reliability of FineCrypt's Encryption • Comparing the original text and resulting ciphertext, known as "test vectors" • Test vectors - widely published and can find them in the Internet • Hexadecimal file editor required for testing • Download a simple hexadecimal editor "HighLight" @ www.finecrypt.net/mylight22.exe

  35. Testing AES Algorithm with Electronic Codebook Mode • Download the test vectors for AES algorithm from National Institute of Standards and Technology (NIST) • http://csrc.nist.gov/encryption/aes/rijndael/rijndael-vals.zip • Unzip and open the file "ecb_tbl.txt"

  36. Create new file in hexadecimal editor • Enter the plaintext exactly as shown in the test vector

  37. Save the file as “aesp” at desired location. Our plaintext is created • Encrypt “aesp” file using key • Enter the encryption key exactly as shown in the test vector

  38. Select AES with ECB mode • Set “Don’t compress” option on “General” page • Do not change anything in the "initial vector" editor window • Press the "Encrypt" button and encrypt the file • The process is finished

  39. Now check the ciphertext in the file “aesp” corresponds with NIST’s ciphertext or not • Open the encrypted file in Hex Editor • Compare that green text with test vector and make sure they are identical

  40. Cracking Encryption

  41. Conclusion • Information Security is becoming more important after Sept 11, 2001 • Encryption products - locks and keys of the Information Age • FineCrypt - Best freeware Cryptographic tool available on Internet

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