Bernard Aboba wrote:
CBC mode is much more widely available in libraries than CTR mode. RFC 3723 specified CTR mode and this was probably a mistake.
CBC of course has been in use for a long time; no dispute there. However, CTR mode has been the mode specified for network access in a lot of "new" wireless access networks, including 802.11, 802.16, and 3GPP2 link layers.
I would contend that CTR mode is more suitable -- compared to CBC -- for high-speed encryption also :). Anyway, we are not discussing 3723 here.
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