Merge pull request #73 from mdboom/checksum

Checksum
asdf-format · Mar 19, 2015 · aab6397 · aab6397
2 parents 22375ac + ea5d024
commit aab6397
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Showing 13 changed files with 4 additions and 5 deletions.
diff --git a/reference_files/0.1.0/ascii.asdf b/reference_files/0.1.0/ascii.asdf
diff --git a/reference_files/0.1.0/basic.asdf b/reference_files/0.1.0/basic.asdf
diff --git a/reference_files/0.1.0/complex.asdf b/reference_files/0.1.0/complex.asdf
diff --git a/reference_files/0.1.0/compressed.asdf b/reference_files/0.1.0/compressed.asdf
diff --git a/reference_files/0.1.0/exploded0000.asdf b/reference_files/0.1.0/exploded0000.asdf
diff --git a/reference_files/0.1.0/float.asdf b/reference_files/0.1.0/float.asdf
diff --git a/reference_files/0.1.0/int.asdf b/reference_files/0.1.0/int.asdf
diff --git a/reference_files/0.1.0/shared.asdf b/reference_files/0.1.0/shared.asdf
diff --git a/reference_files/0.1.0/stream.asdf b/reference_files/0.1.0/stream.asdf
diff --git a/reference_files/0.1.0/unicode_bmp.asdf b/reference_files/0.1.0/unicode_bmp.asdf
diff --git a/reference_files/0.1.0/unicode_spp.asdf b/reference_files/0.1.0/unicode_spp.asdf
diff --git a/reference_files/generate/generate b/reference_files/generate/generate
@@ -3,7 +3,6 @@
 
 from __future__ import unicode_literals
 
-import copy
 import os
 
 try:

diff --git a/source/file_layout.rst b/source/file_layout.rst
@@ -163,7 +163,7 @@ Each block begins with the following header:
   backward compatibility.  Importantly, ASDF parsers should not assume
   a fixed size of the header, but should obey the ``header_size``
   defined in the file.  In ASDF version 0.1, this should be at least
-  40, but may be larger, for example to align the beginning of the
+  48, but may be larger, for example to align the beginning of the
   block content with a file system block boundary.
 
 - ``flags`` (32-bit unsigned integer, big-endian): A bit field
@@ -187,9 +187,9 @@ Each block begins with the following header:
   If compression is being used, this is the size of the decoded block
   data.
 
-- ``checksum`` (64-bit unsigned integer, big-endian): An optional MD5
-  checksum of the used data in the block.  The special value of 0
-  indicates that no checksum verification should be performed.  *TBD*.
+- ``checksum`` (16-byte string): An optional MD5 checksum of the used
+  data in the block.  The special value of all zeros indicates that no
+  checksum verification should be performed.
 
 Flags
 ^^^^^