Creates a new GChecksum, using the checksum algorithm checksum_type.
If the checksum_type is not known, NULL is returned.
A GChecksum can be used to compute the checksum, or digest, of an
arbitrary binary blob, using different hashing algorithms.
A GChecksum works by feeding a binary blob through g_checksum_update()
until there is data to be checked; the digest can then be extracted
using g_checksum_get_string(), which will return the checksum as a
hexadecimal string; or g_checksum_get_digest(), which will return a
vector of raw bytes. Once either g_checksum_get_string() or
g_checksum_get_digest() have been called on a GChecksum, the checksum
will be closed and it won't be possible to call g_checksum_update()
on it anymore.
Since 2.16
Creates a new GChecksum, using the checksum algorithm checksum_type. If the checksum_type is not known, NULL is returned. A GChecksum can be used to compute the checksum, or digest, of an arbitrary binary blob, using different hashing algorithms. A GChecksum works by feeding a binary blob through g_checksum_update() until there is data to be checked; the digest can then be extracted using g_checksum_get_string(), which will return the checksum as a hexadecimal string; or g_checksum_get_digest(), which will return a vector of raw bytes. Once either g_checksum_get_string() or g_checksum_get_digest() have been called on a GChecksum, the checksum will be closed and it won't be possible to call g_checksum_update() on it anymore. Since 2.16