updates.

diff --git a/doc/draft-riikonen-silc-spec-06.nroff b/doc/draft-riikonen-silc-spec-06.nroff
index d74f969f2e2ae4e8f76725eacf6dcb7e656752b4..fd92a5ed82611f1e5b999d5e82f1ce489a3eea3b 100644 (file)
--- a/doc/draft-riikonen-silc-spec-06.nroff
+++ b/doc/draft-riikonen-silc-spec-06.nroff
@@ -1304,14 +1304,15 @@ not stateful and receiver cannot precompute the key stream.
 3.10.1.3 Randomized CBC Mode
 
 The "rcbc" encryption mode is CBC mode with randomized IV.  This means
 3.10.1.3 Randomized CBC Mode
 
 The "rcbc" encryption mode is CBC mode with randomized IV.  This means

-that each IV for each packet MUST be chosen randomly (same IV is used
-to encrypt all blocks in the given packet).  In this mode the IV is
-appended at the end of the last ciphertext block and thus delivered to
-the recipient.  This mode increases the ciphertext size by one
-ciphertext block.  Note also that some data payloads in SILC are capable
-of delivering the IV to the recipient.  When explicitly encrypting these
-payloads with randomized CBC the IV MUST NOT be appended at the end
-of the ciphertext.
+that each IV for each packet MUST be chosen randomly.  When encrypting
+more than one block the normal inter-packet chaining is used, but for
+the first block new random IV is selected in each packet.  In this mode
+the IV is appended at the end of the last ciphertext block and thus
+delivered to the recipient.  This mode increases the ciphertext size by
+one ciphertext block.  Note also that some data payloads in SILC are
+capable of delivering the IV to the recipient.  When explicitly
+encrypting these payloads with randomized CBC the IV MUST NOT be appended
+at the end of the ciphertext.

 
 
 .ti 0
 
 
 .ti 0