| Both Certification Authorities are the Digital Signature service providers: Digital Signature can be used by legal entities and physical bodies being analogue of manual signature and is assigned for giving legal force to electronic document. Legal force of electronic document signed with Digital Signature is equal to paper document signed with manual signature and sealed by competent body. Digital Signature integration to the electronic circulation systems expedites different business activity fundamentally and decreases volume of account paper documentation, also saves time of employees, reduces company expenditures which are connected during concluding of agreement or making document of payment and giving document for authorities, receiving reference from state organizations and etc. Unaccredited Certification Authority is the provider of wide circle services in the sphere of EDS for enterprises of different property forms excepting state and local government bodies, enterprises and organizations of state property. Accredited MASTERKEY Certification Authority has received the certificate on the accreditation, allowing carrying out the activity connected with formation and service of Public Key Certificates. Public Key Certificates are given by the accredited Certification Authorities and are formed with using of the reliable methods of EDS and regulated by the legislation of Ukraine. Having 25 subsidiary offices all over Ukraine and call Center 24/7 (toll-free number 800) our customers get the best service they can obtain. Public Key Certificates could used by the enterprises and the organizations of all property forms, including state and local government bodies, enterprises and organizations of state property. MASTERKEY Certification Authority services Masterkey Certification Authority provides full services of Digital Signature use: Registration of clients. Generation of DS keys, creation of Public Key Certificates. Rendering of software for DS and cryptographic protection of electronic documents. Rendering services of blocking, recovering and revocation of Public Key Certificates of CA clients. Publication of lists of blocked and revoked Public Key Certificates of clients on CA website. Timestamp services.
Personnel of MASTERKEY Certification Authority There is a highly skilled personnel in Masterkey Certification Authority having profile education and long experience in information protection industry. Employees of Masterkey Certification Authority conduct seminars and give consultations concerning legal use of Digital Signature, software operation and additional DS services. Certification Authority equipment Masterkey Certification Authority has modern equipment, as well as specialized software certified by Department of Special Telecommunication Systems and Information Protection of Security Service of Ukraine. Hardware method of DS key generation There are two ways of DS key generation: software and hardware. Hardware way of random number generation consists in using predetermined algorithm, and after specified period of time unique sequences are repeated as a result of which private key combination can be deciphered. Masterkey Certification Authority of LLC "Art-master" applies hardware method of key generation which excludes generation of random combination of figures, compared to software method, having random sequences based on physical processes, namely inner noise of devices which is caused by chaotic atomic motion. This noise is transformed into digital form using analog-digital transducer and used for generation of a unique key combination. Software intended for maintenance of DS operation CA Client Package is intended for maintenance of DS operation and performs 4 basic functions: sighing, enciphering and deciphering of a document, control of DS notarization in received documents, as well as extra functions. In spite of its multifunctionality the software is very easy to use. CA Client Package can be received in CA after registration or downloaded from CA website. You may write to the following address info@masterkey.com.ua, post@am-soft.ua, visit our Web-site www.masterkey.com.ua or phone +380 44 248-97-91, 248-98-27 to receive more detailed information concerning Electronic Digital Signature, learn pricing packages as well as buy Electronic Digital Signature. | 
