ABSTRACT
A Thesis of encryption in-depth on official certificate using Steganography (secret communication)
Hwan Kim
Advised by Prof. Doo-Seop Eom
Dept. of Electronics Computer Engineering
Graduate School of Engineering & Technology
Korea University
For in...
ABSTRACT
A Thesis of encryption in-depth on official certificate using Steganography (secret communication)
Hwan Kim
Advised by Prof. Doo-Seop Eom
Dept. of Electronics Computer Engineering
Graduate School of Engineering & Technology
Korea University
For information and communications technology according to the development e-commerce and financial transactions over the Internet have become commonplace. The Internet service is available if the transfer of data sent in plain text can cause problems such as fake and falsification. As a way to solve this problem, public key-based electronic signatures are used. The electronic signature system for e-commerce in the official certificate to confirm the identity of users, document forgery and tampering, repudiation of transactions, such as that for the purpose of a recognized certification authority (CA) issued as electronic information, a sort of cyber dealing Seal certification role.
Qualified certificate guarantees the reliability of the information like personal or card information, bank account numbers, etc. on for exchanging. Used as means of personal identification and personal information such as Social Security numbers and are replaced by the official certificate.
Certified for safe use of the certificate system, public certificate and private key encryption technology is applied to save the file in the difficult as well as counterfeiting and tampering, the user's private key encryption to establish eight-digit password is used to increase safety. However, despite these security systems certified certificate and private key encryption, passwords, etc. are often stolen by hackers, unauthorized users of the deposits and withdrawals can cause accidents.
The fundamental reason for such an accident occurs, the official certificate (certified certificate, private key file) can easily be exposed, and Private-key encryption by password hacking programs such as key-logger are leaked.
In this thesis, in order to resolve these vulnerabilities using steganography in-depth public certificate and private key encryption method is presented. Accredited certificate and private key file, hidden in an image file of your choice, make them stego image stored on a hard disk or a removable storage device, an attacker with the malicious purpose of the user's PC, even if the attack is difficult to identify the public certificate file is to make. Even if an attacker to identify the stego image are hidden in a certificate file using the private key password is randomly determined by a random number combined with the certificate file can not be recovered from the stego image characteristics.
To verify this, official certificates were stashed it in the image file. Then, Using visual detection and detection tools to detect hidden data, experiments were conducted. Detection results were virtually impossible to detect. The reason is that steganography is the hiding scheme. So. if official certificates are in-depth encrypted using steganography, damage can be significantly reduced
ABSTRACT
A Thesis of encryption in-depth on official certificate using Steganography (secret communication)
Hwan Kim
Advised by Prof. Doo-Seop Eom
Dept. of Electronics Computer Engineering
Graduate School of Engineering & Technology
Korea University
For information and communications technology according to the development e-commerce and financial transactions over the Internet have become commonplace. The Internet service is available if the transfer of data sent in plain text can cause problems such as fake and falsification. As a way to solve this problem, public key-based electronic signatures are used. The electronic signature system for e-commerce in the official certificate to confirm the identity of users, document forgery and tampering, repudiation of transactions, such as that for the purpose of a recognized certification authority (CA) issued as electronic information, a sort of cyber dealing Seal certification role.
Qualified certificate guarantees the reliability of the information like personal or card information, bank account numbers, etc. on for exchanging. Used as means of personal identification and personal information such as Social Security numbers and are replaced by the official certificate.
Certified for safe use of the certificate system, public certificate and private key encryption technology is applied to save the file in the difficult as well as counterfeiting and tampering, the user's private key encryption to establish eight-digit password is used to increase safety. However, despite these security systems certified certificate and private key encryption, passwords, etc. are often stolen by hackers, unauthorized users of the deposits and withdrawals can cause accidents.
The fundamental reason for such an accident occurs, the official certificate (certified certificate, private key file) can easily be exposed, and Private-key encryption by password hacking programs such as key-logger are leaked.
In this thesis, in order to resolve these vulnerabilities using steganography in-depth public certificate and private key encryption method is presented. Accredited certificate and private key file, hidden in an image file of your choice, make them stego image stored on a hard disk or a removable storage device, an attacker with the malicious purpose of the user's PC, even if the attack is difficult to identify the public certificate file is to make. Even if an attacker to identify the stego image are hidden in a certificate file using the private key password is randomly determined by a random number combined with the certificate file can not be recovered from the stego image characteristics.
To verify this, official certificates were stashed it in the image file. Then, Using visual detection and detection tools to detect hidden data, experiments were conducted. Detection results were virtually impossible to detect. The reason is that steganography is the hiding scheme. So. if official certificates are in-depth encrypted using steganography, damage can be significantly reduced
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