Cryptography Reference
In-Depth Information
Diagram 8.6 PGP Message Generation and Encryption Via Rings
Passphrase
P h
Alice's Private
Key Ring
h ( P )
.
E h ( P ) ( d A )
←−−−−−−−−
ID A -index
←−−−−−−−−−
select
E
E h ( P ) ( d A )
|
ID A
|
I e A
.
d A
d A
( d A ( h ( m )) , m )
= D A
−−−−→
d A ( h ( m ))
d A ( h ( m ) , m )
−−−−→
m
h ( m ) h
D A
Alice Creates
Message
Signature and Message
Output for Encryption
←−−−−
m
D A
E
k
−−−−→
PGPRNG
k e B
E k ( D A )
( E k ( D A ) , e B ( k ))
e B ( k )
−−−−→
e B
−−−−→
I e B
( E k ( D A ) , I e B , e B ( k ))
Alice's Public
Key Ring
.
Output Encrypted
Signature and Message
ID B -index
−−−−−−−−−→
select
e B
|
ID B
|
I e B
.
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