Commit 91f940b1 authored by Niels Möller's avatar Niels Möller

Added link for CBC information leakage.

Rev: nettle/nettle.texinfo:1.19
parent b51d1c2c
......@@ -1349,7 +1349,9 @@ Book mode, @acronym{ECB}) leaks information. Besides @acronym{ECB},
Nettle provides three other modes of operation: Cipher Block Chaining
(@acronym{CBC}), Counter mode (@acronym{CTR}), and Galois/Counter mode
(@acronym{gcm}). @acronym{CBC} is widely used, but there are a few
subtle issues of information leakage. @acronym{CTR} and @acronym{GCM}
subtle issues of information leakage, see, e.g.,
@uref{http://www.kb.cert.org/vuls/id/958563, @acronym{SSH} @acronym{CBC}
vulnerability}. @acronym{CTR} and @acronym{GCM}
were standardized more recently, and are believed to be more secure.
@acronym{GCM} includes message authentication; for the other modes, one
should always use a @acronym{MAC} (@pxref{Keyed hash functions}) or
......
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