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Data Checksums

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Computes the checksum for data

<!-- ##### SECTION Long_Description ##### -->
<para>
GLib provides a generic API for computing checksums (or "digests") for a
sequence of arbitrary bytes, using various hashing algorithms like MD5,
SHA-1 and SHA-256. Checksums are commonly used in various environments and
specifications.
</para>

<para>
GLib supports incremental checksums using the GChecksum data structure, by
calling g_checksum_update() as long as there's data available and then using
g_checksum_get_string() or g_checksum_get_digest() to compute the checksum
and return it either as a string in hexadecimal form, or as a raw sequence
of bytes. To compute the checksum for binary blobs and NUL-terminated strings
in one go, use the convenience functions g_compute_checksum_for_data() and
g_compute_checksum_for_string(), respectively.
</para>

<para>
Support for checksums has been added in GLib 2.16
</para>

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<para>

</para>

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<!-- ##### ENUM GChecksumType ##### -->
<para>

</para>

@G_CHECKSUM_MD5: 
@G_CHECKSUM_SHA1: 
@G_CHECKSUM_SHA256: 

<!-- ##### FUNCTION g_checksum_type_get_length ##### -->
<para>

</para>

@checksum_type: 
@Returns: 


<!-- ##### STRUCT GChecksum ##### -->
<para>

</para>


<!-- ##### FUNCTION g_checksum_new ##### -->
<para>

</para>

@checksum_type: 
@Returns: 


<!-- ##### FUNCTION g_checksum_copy ##### -->
<para>

</para>

@checksum: 
@Returns: 


<!-- ##### FUNCTION g_checksum_free ##### -->
<para>

</para>

@checksum: 


<!-- ##### FUNCTION g_checksum_update ##### -->
<para>

</para>

@checksum: 
@data: 
@length: 


<!-- ##### FUNCTION g_checksum_get_string ##### -->
<para>

</para>

@checksum: 
@Returns: 


<!-- ##### FUNCTION g_checksum_get_digest ##### -->
<para>

</para>

@checksum: 
@buffer: 
@digest_len: 


<!-- ##### FUNCTION g_compute_checksum_for_data ##### -->
<para>

</para>

@checksum_type: 
@data: 
@length: 
@Returns: 


<!-- ##### FUNCTION g_compute_checksum_for_string ##### -->
<para>

</para>

@checksum_type: 
@str: 
@length: 
@Returns: 


