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From crypt-1.05.tar.bz2, SHA1 of 88250202bb51570dc64f7e8f1c943cda9479258f --HG-- branch : libtomcrypt-orig extra : convert_revision : 5c0c50e93111636ccf8deb758a689ad713797baf
19 lines
639 B
Plaintext
19 lines
639 B
Plaintext
Tech Note 0005
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Minimizing Code Space
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Tom St Denis
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Introduction
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------------
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Tweaking...
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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.
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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
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roughly 80KB of code.
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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 \
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-DHMAC -DYARROW -DMRSA -DMPI -Os -fomit-frame-pointer" make IGNORE_SPEED=1
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Neato eh?
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