Hashes data into a digest context, to update a signature
This function can be called multiple times on the same ctx to hash additional data.
the digest context containing the hash
pointer to the start of the data to be hashed
the number of bytes of data to be hashed
1 on success. 0 for failure
See Implementation
Hashes data into a digest context, to update a signature
This function can be called multiple times on the same ctx to hash additional data.