1. A method performed by a computing system, the method comprising: determining that a size of key data to be stored within a kernel memory is greater than a threshold value, the threshold value based on a size value associated with maintaining the key data outside of the kernel memory; allocating a block of memory within a volatile memory store, the block of memory being outside the kernel memory; storing the key data within the block of memory; and storing, within the kernel memory, a pointer to the key data.