Hello, In AEAD mode (or in any case, in IPSec ESP IPv4 – esp4.c), in kernel versions prior to 4.2 the cryptographic driver is expected to generate an IV. What if my driver is unable to generate an IV? Thanks, Dennis. -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html