Table 3:
Protocol for authenticated secure group communication.
(1)
𝑢
𝑖
→
KDC:
𝐸
𝐾
𝑖
[
I
D
𝑖
‖
𝑃
𝑗
‖
𝑇
]
(2)
KDC
→
𝑢
𝑖
:
𝐸
𝐾
𝑖
[
𝑟
‖
𝑃
𝑗
‖
𝑇
]
(3)
KDC
→
{
M
e
m
b
e
r
s
o
f
𝑃
𝑗
}
:
𝐸
𝐺
𝑗
[
𝐻
(
𝑟
)
‖
I
D
𝑖
‖
𝑃
𝑗
‖
𝑇
]
(4)
𝑢
𝑖
→
{
M
e
m
b
e
r
s
o
f
𝑃
𝑗
}
:
𝐸
𝐺
𝑗
[
𝑟
‖
I
D
𝑖
‖
𝑃
𝑗
‖
𝑇
‖
𝑚
]