ISO IEC 29150:2011 pdfダウンロード。Information technology — Security techniques — Signcryption 1 Scope This International Standard specifies four mechanisms for signcryption that employ public key cryptographic techniques requiring both the originator and the recipient of protected data to have their own public and private key pairs. This International Standard is not applicable to infrastructures for management of public keys which are defined in ISO/IEC 11770-1 and ISO/IEC 9594. NOTE 1 Signcryption mechanisms are defined ways of processing a data string with the following security objectives:  data confidentiality, i.e. protection against unauthorized disclosure of data;  data integrity, i.e. protection that...