src/bsp/lk/lib/sha512/include/sha512.h

#define SHA_LBLOCK      16
#define SHA_CBLOCK      (SHA_LBLOCK*4)/* SHA treats input data as a
                                        * contiguous array of 32 bit wide
                                        * big-endian values. */
#define SHA_LAST_BLOCK  (SHA_CBLOCK-8)
#define SHA_DIGEST_LENGTH 20
#define SHA512_CBLOCK   (SHA_LBLOCK*8)
#define SHA512_DIGEST_LENGTH    64


#define SHA_LONG64 unsigned long

#define U64(C) C##ULL


typedef struct SHA512state_st {
    SHA_LONG64 h[8];
    SHA_LONG64 Nl, Nh;
    union {
        SHA_LONG64 d[SHA_LBLOCK];
        unsigned char p[SHA512_CBLOCK];
    } u;
    unsigned int num, md_len;
} SHA512_CTX;