SSL splitting and barnraising : cooperative caching with authenticity guarantees
Name
53842382-MIT.pdf
Description
Full printable version
Size
262.9 KB
Format
Adobe PDF
Checksum (MD5)
dfc67601e35d2cb4b9c88b91a622ac36
Author(s)
Lesniewski-Laas, Christopher T. (Christopher Tur), 1980-
Advisor(s)
M. Frans Kaashoek.
Alternative Title
Secure socket layer splitting and barnraising
Date Issued
2003
Publisher
Massachusetts Institute of Technology
Abstract
SSL splitting is a cryptographic technique to guarantee that public data served by caching Web proxies is endorsed by the originating server. When a client makes a request, the trusted server generates a stream of authentication records and sends them to the untrusted proxy, which combines them with a stream of data records retrieved from its local cache. The combined stream is relayed to the client, a standard Web browser, which verifies the data's integrity. Since the combined stream simulates a normal Secure Sockets Layer (SSL) [7] connection, SSL splitting works with unmodified browsers; however, since it does not provide confidentiality, it is appropriate for applications that require only authentication. The server must be linked to a patched version of the industry-standard OpenSSL library; no other server modifications are necessary. In experiments replaying two-hour access.log traces taken from LCS Web sites over a DSL link, SSL splitting reduces bandwidth consumption of the server by between 25% and 90% depending on the warmth of the cache and the redundancy of the trace. Uncached requests forwarded through the proxy exhibit latencies within approximately 5% of those of an unmodified SSL server.
Description
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
Includes bibliographical references (p. 35-37).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
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