This lecture covers the transition from a secure channel to secure communications, focusing on the case study of the biometric passport. Topics include RFID technology, ICAO standards, identity examples, MRTD advantages and problems, EAC, LDS structure, SOD structure, PKI, access control, active authentication, and cryptographic protocols. The instructor, Serge Vaudenay, discusses security and privacy issues, cryptographic trilogy concepts, confidentiality, integrity, authenticity, MAC, and symmetric cryptography constructions.