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| author | Matt Johnston <matt@ucc.asn.au> | 2006-03-08 13:23:58 +0000 |
|---|---|---|
| committer | Matt Johnston <matt@ucc.asn.au> | 2006-03-08 13:23:58 +0000 |
| commit | 6ae3a09ef33b62811a7f60a1f97dcb89907c1ac1 (patch) | |
| tree | 37e84722c5b30bbfc86947bee260473d4604b616 /libtomcrypt/notes/tech0005.txt | |
| parent | 33defd1f9b6c4889fe5b075e6abb0b24c00f3a59 (diff) | |
| parent | 8608a8e64c1aeda096867f43f89e29e1aee207ae (diff) | |
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
to branch 'au.asn.ucc.matt.dropbear' (head fdf4a7a3b97ae5046139915de7e40399cceb2c01)
--HG--
extra : convert_revision : dc4809882e1b9f2dcd3f8bbe38c74a0a52c39ce4
Diffstat (limited to 'libtomcrypt/notes/tech0005.txt')
| -rw-r--r-- | libtomcrypt/notes/tech0005.txt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/libtomcrypt/notes/tech0005.txt b/libtomcrypt/notes/tech0005.txt new file mode 100644 index 0000000..8f393d5 --- /dev/null +++ b/libtomcrypt/notes/tech0005.txt @@ -0,0 +1,18 @@ +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? |