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Now that we've got at least some SDCTR modes working (and aes256-ctr is our

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default preferred cipher), add code to inject SSH_MSG_IGNOREs to randomise
the IV when using CBC-mode ciphers.  Each cipher has a flag to indicate
whether it needs this workaround, and the SSH packet output maze has gained
some extra complexity to implement it.

[originally from svn r5659]
This commit is contained in:
Ben Harris
2005-04-23 16:22:51 +00:00
parent b28330fc35
commit f2b0335c48
6 changed files with 48 additions and 19 deletions
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4
ssharcf.c
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@ -102,14 +102,14 @@ const struct ssh2_cipher ssh_arcfour128_ssh2 = {
arcfour_make_context, arcfour_free_context, arcfour_iv, arcfour128_key,
arcfour_block, arcfour_block,
"arcfour128-draft-00@putty.projects.tartarus.org",
1, 128, "Arcfour-128"
1, 128, 0, "Arcfour-128"
};
const struct ssh2_cipher ssh_arcfour256_ssh2 = {
arcfour_make_context, arcfour_free_context, arcfour_iv, arcfour256_key,
arcfour_block, arcfour_block,
"arcfour256-draft-00@putty.projects.tartarus.org",
1, 256, "Arcfour-256"
1, 256, 0, "Arcfour-256"
};
static const struct ssh2_cipher *const arcfour_list[] = {