SHA256_BLOCK_LENGTH   78 ext/digest/sha2/sha2.h #define SHA256_BLOCK_LENGTH		64
SHA256_BLOCK_LENGTH    4 ext/digest/sha2/sha2cc.h #define SHA256_BLOCK_LENGTH	CC_SHA256_BLOCK_BYTES
SHA256_BLOCK_LENGTH    7 ext/digest/sha2/sha2ossl.h #define SHA256_BLOCK_LENGTH	SHA256_CBLOCK