2026-09-19T00:42:21Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/169812022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
M. Frans Kaashoek.
Lesniewski-Laas, Christopher T. (Christopher Tur), 1980-
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2005-05-19T15:31:48Z
2005-05-19T15:31:48Z
2003
2003
http://hdl.handle.net/1721.1/16981
53842382
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.
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.
by Christopher T. Lesniewski-Laas.
M.Eng.
37 p.
269508 bytes
269205 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
SSL splitting and barnraising : cooperative caching with authenticity guarantees
Secure socket layer splitting and barnraising
Thesis
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<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.</Abstract>
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