Passive transponder
Password processing whereby a foreign password is referred to af
Password protocols using XZ-elliptic curve cryptography
Password security method
Passwordless secure and efficient remote data update
Pay per view television signaling method
Pay television system
Pay television system
Payment Authorization and Information Device
Performance enhancement for ANSI X3.92 data encryption algorithm
Peripheral device preventing post-scan modification
Permutation data transform to enhance security
Personal access management system
Personal access management system
Personal access management system
Personal access management system
Personal access management system
Personal access management system
Personal access management system
Personal access management systems