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doc crypto: add word on using CFLAGS

This commit is contained in:
BytesGalore 2016-02-11 13:06:51 +01:00
parent a0429f7542
commit 30ab688339

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@ -25,6 +25,12 @@
* While you can use the ciphers functions directly, you should resort to
* the generic API for block ciphers whenever possible.
*
* Additionally you need to set a CFLAG for each cipher you want to use in your Makefile:
* * AES-128: CFLAGS += -DCRYPTO_AES
* * 3DES: CFLAGS += -DCRYPTO_THREEDES
* * Twofish: CFLAGS += -CRYPTO_TWOFISH
* This sets the appropriate buffer sizes for cipher operations.
*
* Example:
* @code
* #include "crypto/ciphers.h"