Present Paper: Protecting Free Expression Online on Freenet

Protecting Free Expression Online with Freenet I. Clarke, S. G. Miller, T. W. Hong, O. Sandberg, and B. Wiley Presented by Sivadon Chaisiri Related paper: Freenet: A Distributed Anonymous Information Storage and Retrieval System

O utline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object]

O verview of F reenet ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

F reenet A rchitecture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

G UID K eys 1/4 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ex. Data Store Ex. Routing Table F001 A50031 F004 F003 F002 FILE E9005C 872350 A5D033 KEY 152.195.200.102 101.72.100.214 64.75.32.88 158.108.216.7 IP ADDR 6D8FB7 329004 A5D030 A50001 KEY

G UID K eys 2/4 ,[object Object],[object Object],[object Object],[object Object],File SHA CHK

G UID K eys 3/4 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Public key SSK Private key Description SHA SHA concat SHA File Signing Signature

R outing 1/3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

R outing 2/3 ,[object Object],Requestor Holder ,[object Object],A B C F E D 1 2 3 4 11 10 9 5 8 6 7 12 Data request Data reply Request fail

I nserting F ile s 1/2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I nserting F ile s 2/2 ,[object Object],Publisher TTL=3 TTL=2 TTL=1 TTL=0 ,[object Object],insert all clear copy A B C D

A dding N odes 1/2 ,[object Object],[object Object],[object Object],[object Object],[object Object]

H a = SHA(R a ) R a = rnd() R b = rnd() H b = SHA(H a + R b ) R c = rnd() H c = SHA(H b + R c ) C b = SHA(H b ) C c = SHA(H c ) H a H b TTL=3 TTL=2 TTL=1 TTL=0 GUID( A ) = SHA(R a + R b + R c + R d ) A dding N odes 2/2 R d = rnd() H c H c , R d H b , R c , R d H a , R b , R c , R d C a = SHA(H a ) A B C D

M anaging D ata S tores ,[object Object],[object Object],[object Object],[object Object],[object Object]

P erformance A nalysis 1/4 ,[object Object],[object Object],[object Object],[object Object],[object Object]

S ummary ,[object Object],[object Object],[object Object]

R eview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

R eference ,[object Object],[object Object],[object Object],[object Object]

Present Paper: Protecting Free Expression Online on Freenet

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (19)

Similar to Present Paper: Protecting Free Expression Online on Freenet

Similar to Present Paper: Protecting Free Expression Online on Freenet (20)

Recently uploaded

Recently uploaded (20)

Present Paper: Protecting Free Expression Online on Freenet