GCM counter inc
From: Ronen Shitrit <hidden>
Date: 2012-06-20 08:44:16
Hi According to the GCM NIST publication, the counter increment should be module 32 bit. Looking into the crypto code, I can see that when using gcm(aes) the gcm will use the ctr over aes, ctr.c is using the crypto_inc with size of blocksize, which is 16 for AES. in case crypto_inc will overflow in 32bit it will inc the next 32bit... Is this a bug or am I missing something? Regards