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Add 'next_message' methods to cipher and MAC vtables.

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This provides a convenient hook to be called between SSH messages, for
the crypto components to do any per-message processing like
incrementing a sequence number.
This commit is contained in:
Simon Tatham
2022-08-16 18:27:06 +01:00
parent 9160c41e7b
commit 840043f06e
12 changed files with 66 additions and 0 deletions
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2
crypto/aes.h
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@ -52,6 +52,7 @@ static inline bool check_availability(const struct aes_extra *extra)
.setkey = aes ## impl_c ## _setkey, \
.encrypt = aes ## bits ## impl_c ## _cbc_encrypt, \
.decrypt = aes ## bits ## impl_c ## _cbc_decrypt, \
.next_message = nullcipher_next_message, \
.ssh2_id = "aes" #bits "-cbc", \
.blksize = 16, \
.real_keybits = bits, \
@ -69,6 +70,7 @@ static inline bool check_availability(const struct aes_extra *extra)
.setkey = aes ## impl_c ## _setkey, \
.encrypt = aes ## bits ## impl_c ## _sdctr, \
.decrypt = aes ## bits ## impl_c ## _sdctr, \
.next_message = nullcipher_next_message, \
.ssh2_id = "aes" #bits "-ctr", \
.blksize = 16, \
.real_keybits = bits, \