Privacy policy. This topic for the IT professional describes the behavior of Remote Desktop Services when you implement smart card sign-in. The content in this topic applies to the versions of Windows that are designated in the Applies To list at the beginning of this topic.
In these versions, smart card redirection logic and WinSCard API are combined to support multiple redirected sessions into a single process. A user is not able to establish a redirected smart card-based remote desktop connection.
In a Remote Desktop scenario, a user is using a remote server for running services, and the smart card is local to the computer that the user is using. In a smart card sign-in scenario, the smart card service on the remote server redirects to the smart card reader that is connected to the local computer where the user is trying to sign in.
This scenario is a remote sign-in session on a computer with Remote Desktop Services. Arrows represent the flow of the PIN after the user types the PIN at the command prompt until it reaches the user's smart card in a smart card reader that is connected to the Remote Desktop Connection RDC client computer.
This is possible because RDP redirector rdpdr. This protocol has virtually no security features. Messages and files can be read by anyone who comes into contact with them.
The number of documents managed by organizations increases daily. Knowledge is becoming the most important product for companies today. As EDM enhances a company's productivity and efficiency to manage that knowledge it also exposes that company to unauthorized access to that knowledge.
The typical EDMS solely relies on password protection for security. However, the data on these portable computers is worth much more than the hardware itself. It is critical that the data stored on any type of hardware, whether it is a desktop computer, portable computer or server, must be properly secured form any unauthorized access. Passwords are often used to prevent unauthorized individuals from accessing electronic data. Passwords may also be used to link activities that have occurred to a particular individual.
The problem with passwords is that if any unauthorized party steals or guesses a password, the security of the computer system may be severely compromised. Passwords are wholly inadequate for file archiving.
Systems using firewalls prevent intruders from accessing the firm's internal systems. Password-based firewall systems do not provide positive user identification nor do they protect electronic data that is stored on a server, has left the firm on a portable computer, is sent via e mail over the Internet, or is stored on a floppy disk.
The typical smart card is a self contained, tamper resistant, credit card size device that serves as a storage device and is equipped with an integrated microprocessor chip an non-volatile electronic memory. The smart card processes information on the integrated microprocessor chip. Security is enhanced because the user must have the smart card along with the user's confidential information e.
Passwords are kept off computer hosts and on the smart card to enhance security. Smart cards typically can only be accessed with a user defined password. Many smart cards include a lock-out feature so that failed attempts at the smart card password will lock the card out to prevent any unauthorized or fraudulent use of the smart card. ISO compliant smart cards and smart card readers follow industry standards. Increasingly, information technology professionals are turning to encryption technologies to ensure the privacy of business information.
Encryption can provide confidentiality, source authentication, and data integrity. Unfortunately encryption generally is cumbersome and difficult to use. A major obstacle for the implementation of encryption technologies has been their disruption to the users' workflow. Encryption is a process of scrambling data utilizing a mathematical function called an encryption algorithm, and a key that affects the results of this mathematical function. The strength of the encrypted data is generally dependent upon the encryption algorithm and the size of the encryption key.
There are two types of encryption: symmetric private key and asymmetric public key. Private key encryption uses a common secret key for both encryption and decryption. Private key encryption is best suited to be used in trusted work groups. It is fast and efficient, and properly secures large files. DES was adopted as a federal standard in It has been extensively used and is considered to be strong encryption. Public key encryption uses a pair of keys, one public and one private.
Each user has a personal key pair, and the user's public or decryption key is used by others to send encrypted messages to the user, while the private or decryption key is employed by the user to decrypt messages received. Because of their mathematical structure, public key encryption is slower than most private key systems, thus making them less efficient for use in a trusted network or for encrypting large files.
Although these private key and public key encryption algorithms do a good job at maintaining the confidentiality of the encrypted matter, they have numerous problems. The biggest obstacle to adoption of any type of encryption system has been ease of use. Typical encryption systems are very cumbersome.
They require a user to interrupt their normal work flow, save their clear text document, activate the separate encryption software, and save the cipher text document under a different name. Where the subject document is ordinary e-mail contents, the process is especially cumbersome, because the clear text must first be created in a separate application, then encrypted, then attached to the e-mail message. TCO recognizes that while a program might be inexpensive or even free in the case of PGP for non-commercial use , there are significant costs in using the software.
This includes the cost of installation, training, lost productivity during use and from bugs, and maintenance. Even where one of the typical encryption systems might satisfy a user's TCO needs, they may not even be an available option. For example, typical EDMSes are self-contained and are not compatible with typical encryption systems. It is therefore the object of the invention to provide a document encryption and decryption system which solves these problems. It is a further object to provide a document encryption and decryption system which works with minimal disruption of a user's normal workflow.
It is a further object to provide a document encryption and decryption system which is compatible with EDMSes. It is a further object to provide a document encryption and decryption system which minimizes TCO.
It is a further object to provide a document encryption and decryption system which takes advantage of the features of smart cards which are not available from pure on-line security systems. These and additional embodiments of the invention may now be better understood by turning to the following detailed description wherein an illustrated embodiment is described.
Throughout this description, the preferred embodiment and examples shown should be considered as exemplars, rather than limitations on the apparatus and methods of the present invention. To network communication lines are coupled a number of workstations a , b , c , d. A number of file servers a , b also are coupled to the network communication lines The network communications lines may be wire, fiber, or wireless channels as known in the art.
A user at any of the workstations preferably may log on to at least one file server as known in the art, and in some embodiments a workstation may be logged on to multiple file servers One or more remote workstations may be provided for dial-in access to the server a through the public switched telephone network or other remote access means.
Network printers a , b are also provided for printing documents. The network may also include hubs, routers and other devices not shown. In conjunction with the processor , the computer has a short term memory preferably RAM and a long term memory preferably a hard disk as known in the art. The computer further includes a LAN interface , a display , a display adapter , a keyboard , a mouse , a smart card reader and a bus as known in the art.
To interface the smart card reader to the computer's Windows operating system and other software, the computer preferably includes an API provided by the smart card reader manufacturer. A user's smart card preferably stores a unique user ID and password and a definable hierarchy of encryption keys.
The hierarchy preferably forms a table wherein a key name is associated with each key value in the table, and the table may store both encryption keys and decryption keys as necessary for the selected cryptographic algorithms. It should be appreciated that, in private key cryptography, the same key value is used for both encryption and decryption.
Instead of the smart card reader and smart card , there could be provided, for example, a biometric recognition system, wireless identification devices, hand held tokens, etc. To make sure you can always access your encrypted data, you should back up your encryption certificate and key. How do I remove EFS encryption from a set of files? Hope this resolves the issue. If issue persists, you can write back to us and we will be glad to assist you further.
Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. First of all thanks for giving me reply. I wrote in my article that I don't have the back up of my old certificate OR key. I created new certificate OR key after formatting my laptop and I already make the back up of my new certificate. So, I don't have any kind of back up of old cert. OR key so I can't access my imp. If you don't have a copy of the certificate then your files are forever lost.
The certificate is the encryption key, you can't recreate the certificate, you need the certificate that was used when the files were encrypted. Advanced EFS Data Recovery by Elcomsoft may be able to recover the certificate on the formatted drive, if it was not overwritten by other files there is a chance, even if slight, that the certificate may still be intact. If you cannot recover the certificate you are another one who has been had by the Delayed Recycle Bin which is the seeming inevitability of data loss when an inexperienced user encrypts his or her files.
I create and test backups of all of my important files. The smart card reader is connected to the endpoint and the smart card is inserted into the smart card reader. Failure to provide a correct password sends a password error and may result in locking the smart card.
To use smart card authentication, make sure that the following requirements are met: The smart card reader is connected to the endpoint and the smart card is inserted into the smart card reader. ActivClient 6. Specify the smart card PIN in the password field.
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