I have a protocol which needs to secure outgoing packets like so: FROM: [n bytes protocol data]
TO: [j bytes padded/encrypted data][16 bytes IV][12 bytes HMAC] What is the most clean/efficient way of using evbuffers for this purpose? I currently do the following in an outgoing filter callback function: unsigned char buf[1024]; len = evbuffer_remove(src, buf, ...); len = crypto_encrypt(...); ... crypto_hmac(...); len += 12; evbuffer_add(dst, buf, len); The crypto_encrypt function overwrites the data in buf with the encrypted data and IV. Is this really the best way to use evbuffers, or are there features in libevent that help me with this which I am not aware of? I am using SVN revision 1457. -- Alex
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