SHR_SHA512
#define SIGMA_MIN0_SHA512(x) (ROTR_SHA512(x, 1) ^ ROTR_SHA512(x, 8) ^ SHR_SHA512(x, 7))
#define SIGMA_MIN1_SHA512(x) (ROTR_SHA512(x, 19) ^ ROTR_SHA512(x, 61) ^ SHR_SHA512(x, 6))