Hey Willy, Linux 3.10 is inexplicably missing crypto_memneq, making all crypto mac comparisons use non constant-time comparisons. Bad news bears. 3.12 got these backported with d68e944a8fcb2c6212b38064771c9f5af7b0b92c, afe5a791d374e50a06ada7f4eda4e921e1b77996, and possibly others. I'd suggest following suit, since many people are relying on this kernel to do safe crypto. Thanks, Jason