1Revision history for Perl extension Digest::SHA3.
2
31.04  Fri Apr 20 16:25:30 MST 2018
4	- silenced compiler warnings from VS2017
5		-- ref. rt.cpan.org #124477
6		-- thanks to Sergey Aleynikov for diagnostics
7	- modified addfile to return error when given a directory name
8		-- makes behavior consistent with GNU coreutils shaXsum
9		-- thanks to Scott Baker for pointing this out
10
111.03  Mon Dec 25 00:08:10 MST 2017
12	- added "--ignore-missing" and "--strict" options to sha3sum
13		-- consistent with GNU coreutils
14		-- ref. rt.cpan.org #123897
15
161.02  Fri Dec  8 22:44:46 MST 2017
17	- added "tag" option (BSD-style checksums) to sha3sum
18		-- consistent with GNU sha1sum, sha224sum, etc.
19		-- thanks to Christopher Tubbs for suggestion
20	- modified SHA3.pm to use XSLoader
21		-- falls back to DynaLoader if necessary
22
231.01  Sun Oct 22 16:04:22 MST 2017
24	- added optional $lsb argument for add_bits() method
25		-- many public vectors in least-significant-bit format
26			-- using $lsb flag results in simpler test code
27	- further minor optimizations in add_bits() and tests
28
291.00  Sat Oct 14 18:08:10 MST 2017
30	- promoted to major release version 1.0
31		-- module stable enough not to be considered draft
32	- fixed alignment issue in BITS mode of addfile
33		-- surfaced only for large non-aligned inputs
34
350.27  Wed Oct  4 00:40:04 MST 2017
36	- removed "portable" mode from sha3sum and addfile
37		-- rarely used, mostly in outdated systems
38		-- potentially confusing features (e.g. \r\r\n -> \n)
39		-- Universal Newlines mode (-U) a much cleaner approach
40			-- mimics Universal Newlines in Python
41	- sha3sum now depends explicitly on Digest::SHA3
42		-- eliminates runtime loading of modules
43		-- no future plans to write Digest::SHA3::PurePerl
44
450.26  Wed Sep  6 02:23:08 MST 2017
46	- added 'quiet' option to sha3sum
47		-- thanks to Chris David for suggestion and initial patch
48		-- ref. rt.cpan.org #122750
49	- expanded sha3sum --help message
50		-- to explain use of escaped FILE names
51
520.25  Wed Jul 27 20:04:40 MST 2016
53	- prevented sha3sum from possibly running malicious code
54		-- remove '.' from @INC before module loading
55		-- ref. rt.cpan.org #116513
56	- namespace cleanup (ref. rt.cpan.org #105371 and #105372)
57	- minor code and documentation tweaks
58
590.24  Sat Jan 10 00:45:34 MST 2015
60	- simplified shabits() routine (bitwise input buffering)
61		-- slightly less efficient but easier to understand
62	- minor documentation tweaks and additions
63
640.23  Sun Jan  4 05:36:30 MST 2015
65	- updated to reflect Draft FIPS 202
66		-- append domain separation bits to message
67		-- implement SHAKE128 and SHAKE256 Extendable-Output
68			Functions (XOFs)
69
700.22  Sun Jun  1 00:15:46 MST 2014
71	- fixed reserved-word clash when compiling with C++
72		-- use 'classname' instead of 'class'
73			-- ref. SHA3.xs (rt.cpan.org #96090)
74
750.21  Fri May 16 10:21:46 MST 2014
76	- restored original 'addfile' for use on opened file handles
77		-- allows callbacks in place of actual files
78			-- ref. IO::Callback (rt.cpan.org #95643)
79	- re-established inheritance from Digest::base
80		-- to pick up future Digest enhancements automatically
81	- cleaned up documentation
82
830.20  Wed May  7 07:57:10 MST 2014
84	- consolidated all dynamic memory allocation into XSUBs
85		-- streamlines referencing of SHA3 objects
86		-- simplifies DESTROYing of objects
87	- enhanced Makefile.PL to allow 'use warnings'
88		-- automatically reverts to $^W for early Perls
89	- scrubbed C and Perl code to remove all compiler warnings
90
910.12  Sat Apr 19 05:14:50 MST 2014
92	- added universal newlines mode ("U") to addfile and sha3sum
93		-- based on Python Universal Newlines concept
94			-- newlines identical across MacOS, DOS, and UNIX
95		-- will deprecate portable mode ("p") in future
96			-- "U" mode is cleaner and more efficient
97	- enhanced performance
98		-- reduced number of dynamic memory allocations
99		-- sped up addfile method with use of C code
100			-- ref. SHA3.xs (_addfilebin and _addfileuniv)
101	- changed text file test (-T) to act on filehandles
102		-- improves consistency when reading from STDIN
103		-- still must act on filenames for early Perls (< 5.6)
104	- sealed memory leak in SHA3.xs
105		-- arose only with SvPVbyte exceptions during eval
106	- patched inheritence bug (ref: rt.cpan.org #94830)
107		-- use sv_isobject/sv_derived_from instead of sv_isa
108	- added 'allocated' flag to SHA3 structure (ref. src/sha3.h)
109		-- to guard against Perl double frees
110
1110.11  Mon Feb 17 16:42:04 MST 2014
112	- tightened code in SHA3.xs
113		-- added sv_isa checks when invoking methods
114
1150.10  Thu Jan 30 08:24:30 MST 2014
116	- improved the performance of hexadecimal output functions
117		-- ref. 'shahex' in src/sha3.c
118		-- thanks to Thomas Drugeon for ideas and test script
119
1200.09  Sun Jan  5 19:08:32 MST 2014
121	- added a 'squeeze' method for SHA3-0 objects
122		-- to construct SHA3-0 digests of any desired length
123
1240.08  Wed Jun 26 04:32:06 MST 2013
125	- workaround for repeated calls to shaclose
126		-- ref. Bug #86295 (posted at Digest::SHA)
127		-- need to explicitly reset internal pointer to NULL
128			ref. shaclose() in SHA3.xs
129	- corrected typos in sha3sum script
130		-- ref. Bug #85430 (posted at Digest::SHA)
131
1320.07  Sat Mar  9 17:36:14 MST 2013
133	- untweaked Makefile.PL to remove dependencies of SHA3.c
134		-- dependencies were breaking builds on VMS
135		-- retaining dependencies provides too little benefit
136			for cost of portable workaround
137
1380.06  Mon Mar  4 08:12:04 MST 2013
139	- removed code for standalone C operation (no longer used)
140		-- eliminates need for external symbols
141		-- reduces size of object files
142		-- thanks to Marc Lehmann for suggestions
143	- tweaked Makefile.PL to show dependencies of SHA3.c
144
1450.05  Thu Jan 24 04:54:14 MST 2013
146	- accommodated Unicode string input
147		-- by using SvPVbyte instead of SvPV in SHA3.xs
148			-- provided workaround for Perl 5.6
149		-- added new test script t/unicode.t
150	- provided documentation to describe Unicode handling
151	- obtained slight speedup on Intel/gcc
152		-- by setting -O1 and -fomit-frame-pointer
153	- adopted (from Digest::SHA) workaround for DEC compiler bug
154
1550.04  Sun Nov 11 19:20:06 MST 2012
156	- enhanced performance
157		-- typically 10-15% faster than 0.03
158		-- code is still easy to read and modify
159	- filled in a few documentation omissions
160
1610.03  Mon Oct 29 04:01:06 MST 2012
162	- attained a 2.5x performance increase through loop unrolling
163		-- code is still easy to follow
164			-- clearly traceable to Keccak pseudo code
165
1660.02  Thu Oct 25 19:18:58 MST 2012
167	- original version: adapted from Digest::SHA version 5.72
168