Lawful Interception of Encrypted Communications

专利名称：Lawful Interception of Encrypted

Communications

发明人：Mats Naslund,Maurizio Iovieno,Karl

Norrman

申请号：US14370862申请日：20120427

公开号：US20150074396A1公开日：20150312

专利附图：

摘要：A method and apparatus for providing access to an encrypted communicationbetween a sending node and a receiving node to a Law Enforcement Agency (LEA). A Key

Management Server (KMS) function stores cryptographic information used to encrypt thecommunication at a database. The cryptographic information is associated with anidentifier used to identify the encrypted communication between the sending node andthe receiving node. The KMS receives a request for Lawful Interception, the requestincluding an identity of a Lawful Interception target. The KMS uses the target identity todetermine the identifier, and retrieves the cryptographic information associated with theidentifier from the database. The cryptographic information can be used to decrypt theencrypted communication. The KMS then sends either information derived from thecryptographic information or a decrypted communication towards the LEA. This allowsthe LEA to obtain a decrypted version of the communication.

申请人：Telefonaktiebolaget L M Ericsson (publ)

地址：Stockholm SE

国籍：SE

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