SHA512_BLOCK_LENGTH   84 ext/digest/sha2/sha2.h #define SHA512_BLOCK_LENGTH		128
SHA512_BLOCK_LENGTH    6 ext/digest/sha2/sha2cc.h #define SHA512_BLOCK_LENGTH	CC_SHA512_BLOCK_BYTES
SHA512_BLOCK_LENGTH    9 ext/digest/sha2/sha2ossl.h #define SHA512_BLOCK_LENGTH	SHA512_CBLOCK