Mercurial > dropbear
view libtomcrypt/notes/tech0005.txt @ 362:1c7bf9cec6c8 channel-fix
Rearranged some more bits, marked some areas that need work.
* send_msg_channel_data() no longer allocates a separate buffer
* getchannel() handles unknown channels so callers don't have to
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Mon, 02 Oct 2006 16:34:06 +0000 |
| parents | 1b9e69c058d2 |
| children | 0cbe8f6dbf9e |
line wrap: on
line source
Tech Note 0005 Minimizing Code Space Tom St Denis Introduction ------------ Tweaking... You can disable whole classes of algorithms on the command line with the LTC_NO_* defines. From there you can manually turn on what you want to enable. The following build with GCC 3.4.3 on an AMD64 box gets you AES, CTR mode, SHA-256, HMAC, Yarrow, full RSA PKCS #1, PKCS #5, ASN.1 DER and MPI in roughly 80KB of code. CFLAGS="-DSC_RSA_1 -DLTC_NO_CIPHERS -DLTC_NO_HASHES -DLTC_NO_PRNGS -DLTC_NO_MACS -DLTC_NO_MODES -DLTC_NO_PK -DRIJNDAEL -DCTR -DSHA256 \ -DHMAC -DYARROW -DMRSA -DMPI -Os -fomit-frame-pointer" make IGNORE_SPEED=1 Neato eh?