Abstract: An authentication system includes: a first information processor; a second information processor; an authentication-service-providing device; and an authentication device, wherein the authentication-service-providing device has: an unit that receives second authentication information for authenticating a user from the second information processor and executes a second authentication based on the second authentication information; and an unit that issues third authentication information to the second information processor when the second authentication is successful; and the authentication device has: an unit that receives first authentication information for authenticating the user from the first information processor and executes a first authentication based on the first authentication information; and an unit that receives, from the first information processor, third authentication information obtained by the second information processor and input to the first information processor and cooperates with the a

Abstract: An authentication system includes: a first information processor; a second information processor; an authentication-service-providing device; and an authentication device, wherein the authentication-service-providing device has: an unit that receives second authentication information for authenticating a user from the second information processor and executes a second authentication based on the second authentication information; and an unit that issues third authentication information to the second information processor when the second authentication is successful; and the authentication device has: an unit that receives first authentication information for authenticating the user from the first information processor and executes a first authentication based on the first authentication information; and an unit that receives, from the first information processor, third authentication information obtained by the second information processor and input to the first information processor and cooperates with the a

Abstract: An encryption key depositing apparatus comprising a unit that generates an encryption key for a user; and a unit that starts a process in response to the generation of the encryption key, the process allowing a depositary deposited with the generated encryption key to store the key in question in a subsequently recoverable manner.

Abstract: An electronic document format management system is provided to assure a recipient not to be deceived by falsification of a document. A format issuing agency 20 uses a signature calculating unit 211 to add a digital signature to format data etc. for an electronic document and transmits the data to a format certificate authority 10. The format certificate authority 10 generates an attribute certificate and transmits the certificate back to the format issuing agency 20. The format issuing agency 20 stores all data related to the format in a format database 215. A client terminal 30 receives format data from the format issuing agency 20, inputs details into the form, and affixes a signature and the like. The recipient of the electronic document verifies the digital signatures of the document author and issuing agency, confirms the attribute certificate from the format certificate authority 10, and contacts the format certificate authority 10 with any additional inquiries.

Abstract: Certification will be performed without the use of any external certification organizations in an organization such as an enterprise. A server and a plurality of clients are connected via a network to thereby constitute a certification system for the entire enterprise. A public secondary memory in the server holds a server name, a certificate list, a temporary registrant list and the like. The certificate list includes individual and group certificates, and the certificate includes specifying information on a certification target, a public key and signature by an responsible person of a group, to which the certification target belongs. The group responsible person signs the public key of the group member and specifying information by using the information on a registrant list to generate a certificate.

Abstract: An aqueous paint composition comprising: (i) an aqueous dispersion obtained by neutralizing with a neutralizing agent a hydrolytic condensation reaction product of (a) 100 parts by weight of an organosilane of the formula (1) R1nSi(OR2)4-n, wherein R1 is a C1-8 organic group, R2 is a C1-5 alkyl group, and n is 1 or 2, and/or its partially hydrolyzed condensate, with (b) from 5 to 200 parts by weight of a silyl group-containing vinyl resin having hydrolyzable silyl groups or silyl groups having silicon atoms bonded to hydroxyl groups and having an acid value of from 20 to 150 mgKOH/g, and adding water thereto, (ii) an amino group-containing alkoxysilane compound, and (iii) an epoxy group-containing compound.

Abstract: In a public key encryption system where an individual is used as a unit, an idea of “group” is newly introduced. Then, both an encryption process operation of a plain text by an arbitrary member belonging to the group, and a decryption process operation of cryptogram information can be executed by employing such a combination key made from a group public key and a group secret key, which are produced in unit of “group”, and further an individual public key and an individual secret key. With employment of this encryption system, while high secrecies can be maintained inside and outside the group, the cryptogram information can be commonly shared based upon a confirmation of a member among members within the group. Also, an electronic signature can be made by a member belonging to the group.

Abstract: An execution control section specifies a function object to next be executed on the basis of icon layout information. When there is a second icon is adjoining or adjacent to the right side or the lower side of a first icon, the execution control section applies an output of the function corresponding to the first icon to the function of the second icon, to trigger the function of the second icon. Icon layout information can be formed by merely juxtaposing icons. The execution control section successively executes the functions of the icons in an order in which the icons are juxtaposed. Also, when an icon is operated, a window management system generates an event. In accordance with the event, an operation environment control portion executes and displays an object corresponding to the icon. A program is composed from function objects corresponding to icons laid out.