Fast real-time public key cryptography
Digital signature system and method based on a conventional encryption function
Secure management of keys using extended control vectors
Method and apparatus for user identification based on permuted kernels
Unforgeable personal identification system
Method for generating public and private key pairs without using a passphrase
Cryptographic method for communication and electronic signatures
Fair cryptosystems and methods of use Patent #: 5315658
ApplicationNo. 875050 filed on 04/28/1992
US Classes:713/156, By certificate380/28, PARTICULAR ALGORITHMIC FUNCTION ENCODING380/30, Public key713/183Solely password entry (no record or token)
ExaminersPrimary: Bowler, Alyssa H.
Assistant: Follansbee, John
Attorney, Agent or Firm
International ClassH04K 001/00
AbstractApparatus for protecting the confidentiality of a user's password during a remote login authentication exchange between a user node and a directory service node of a distributed, public key cryptography system includes a specialized server application functioning as an intermediary agent for the login procedure. The login agent has responsibility for approving the user's login attempt and distributing a private key to the user. However, the login agent is not trusted with the user's password and is therefore a "semi-trusted" node. In another aspect of the invention, a login protocol enables remote authentication of the user password without transmitting the password over the network.
Field of SearchPublic key