IX_RSSRK_SIZE
uint8_t key[IX_NRSSRK * IX_RSSRK_SIZE];
#define IX_RSSRK_VAL(key, i) (key[(i) * IX_RSSRK_SIZE] | \
key[(i) * IX_RSSRK_SIZE + 1] << 8 | \
key[(i) * IX_RSSRK_SIZE + 2] << 16 | \
key[(i) * IX_RSSRK_SIZE + 3] << 24)