Dag-Erling Smørgrav
94471e9923
Always clear the negative flag in mpi_zero()
2015-10-03 14:23:32 +00:00
Dag-Erling Smørgrav
bf36ff7a8c
Correct context length for SHA digests
2015-10-03 13:56:07 +00:00
Dag-Erling Smørgrav
398abda6b0
Fix various bugs relating to digest algorithm registration and wrapping
2015-10-03 09:32:44 +00:00
Dag-Erling Smørgrav
8d087eeb64
Fix endian.h includes
2015-10-03 09:31:57 +00:00
Dag-Erling Smørgrav
f99073058c
Whitespace cleanup to reduce diffs between SHA-512 and SHA-384.
2015-09-15 10:09:09 +00:00
Dag-Erling Smørgrav
531eeec36b
Add a simple implementation of the Adler-32 checksum.
2015-08-18 13:27:06 +00:00
Dag-Erling Smørgrav
1609b4e08a
Cite the Fletcher paper.
2015-08-18 10:42:41 +00:00
Dag-Erling Smørgrav
aa97da3335
Add simple implementations of Fletcher's checksum.
2015-08-17 15:21:47 +00:00
Dag-Erling Smørgrav
dc75f2edd8
Add a memset_s() implementation (cf. C11 / WG14 N1381)
2015-02-15 09:18:18 +00:00
Dag-Erling Smørgrav
342ac3fd78
Note that rand_bytes() is just a placeholder for the sake of liboath.
2015-01-08 12:24:19 +00:00
Dag-Erling Smørgrav
a33f58cad7
Fix equality predicate.
2015-01-07 19:23:38 +00:00
Dag-Erling Smørgrav
d0fb2359f1
Implement mpi_{add,sub}() in terms of mpi_{add,sub}_abs().
2015-01-07 18:59:44 +00:00
Dag-Erling Smørgrav
7a90ca7b42
Since X may point to the same MPI as either G or L (or even both), we
...
can't set the carry flag based on the contents of G or L after having
modified X. Instead, compute and stash the new carry value first.
2014-12-30 19:14:59 +00:00
Dag-Erling Smørgrav
0d483f20ab
Fix msb calculation. We may have to backtrack quite a bit, for
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instance when subtracting two nearly equal large numbers.
2014-12-30 16:45:18 +00:00
Dag-Erling Smørgrav
1c024928f9
Fix off-by-one bug in mpi_cmp() which could cause it to read past the
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end of the buffer.
2014-12-30 16:35:13 +00:00
Dag-Erling Smørgrav
43b870dc83
WIP: implement subtraction correctly. The actual result is now correct
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most of the time, but the MSB calculation is not.
2014-12-30 11:23:30 +00:00
Dag-Erling Smørgrav
7524a14386
comment nit
2014-12-30 11:15:28 +00:00
Dag-Erling Smørgrav
c5b962387c
Add mpi_eq_abs() and mpi_eq() predicates.
2014-12-30 11:12:11 +00:00
Dag-Erling Smørgrav
bc8e9d67ba
In both mpi_add_abs() and mpi_sub_abs(), make sure that the target is
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untouched if the operation fails. Also ensure that A = A +/- A works.
2014-12-29 23:44:34 +00:00
Dag-Erling Smørgrav
98c6349d4a
In mpi_zero(), save a memset() if the target is already zero.
2014-12-29 23:22:54 +00:00
Dag-Erling Smørgrav
1412dac680
Shifting any number by zero places is a no-op, but so is shifting zero by
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any number of places.
2014-12-29 23:20:26 +00:00
Dag-Erling Smørgrav
8228f19d5a
In mpi_copy(), any failure should leave the target untouched.
2014-12-29 23:18:57 +00:00
Dag-Erling Smørgrav
82f5c5cf77
In mpi_load(), use be32dec() when possible.
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In mpi_set(), it is impossible for the value being loaded to exceed
the minimum size of an mpi; thus, there is no need for mpi_grow().
2014-12-29 15:08:09 +00:00
Dag-Erling Smørgrav
79967f2844
Fix string_equal() for strings of unequal length.
2014-12-29 12:46:44 +00:00
Dag-Erling Smørgrav
2ad45cfccf
Add a string comparison function and a string equality predicate.
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Write test cases for the former.
2014-12-29 12:41:39 +00:00
Dag-Erling Smørgrav
f82bbc1400
Catch up with OpenPAM's latest OATH changes:
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Add an oath_mode(3) function which translates from mode names to numbers.
Consistently use UINT_MAX, not -1, to indicate an invalid response.
Change the meaning of the window parameter to always indicate the number
of codes to check *in addition* to the current code. Note that for TOTP,
the window goes in both directions; a window of 1 means to check the
current code plus the previous and next.
2014-12-20 01:45:01 +00:00
Dag-Erling Smørgrav
a98753b6ef
Fix various cast-qual bugs.
2014-12-20 00:44:24 +00:00
Dag-Erling Smørgrav
6ed802ddf3
Consistently use #if HAVE_FOO instead of #ifdef HAVE_FOO. The reason is
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that AC_CHECK_DECLS([foo]), unlike AC_CHECK_FUNCS([foo]), will always
define HAVE_FOO, so #ifdef HAVE_FOO will always be true even if it is 0.
This commit finally fixes the [bl]e{32,64}{enc,dec} issue on Linux.
2014-12-20 00:38:54 +00:00
Dag-Erling Smørgrav
20dab3e342
Provisionally include strlcmp(), although it is not (currently) used
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anywhere. Opinion is divided as to whether this is useful, or whether
its usefulness is outweighed by its awkwardness. Still, we have it, so
we may as well commit it.
2014-12-20 00:23:59 +00:00
Dag-Erling Smørgrav
e4dd25fa79
Use wstring throughout (except internally in struct cpe_name).
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Add a typedef for struct cpe_name and use it throughout.
Fix inverted logic in cpe_upgrade().
2014-11-01 20:15:45 +00:00
Dag-Erling Smørgrav
f7bdd342dc
Add our own version of <endian.h> which includes implementations of the
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unaligned encoding / decoding functions which Linux lacks.
2014-10-30 12:48:21 +00:00
Dag-Erling Smørgrav
d4fd9a1958
rm unused variable
2014-08-12 07:33:30 +00:00
Dag-Erling Smørgrav
be31515f5e
Start of a multiple-precision integer arithmetic library.
2014-08-12 07:30:31 +00:00
Dag-Erling Smørgrav
35d982ea57
Rename CPEXX_VER to cpeXX_ver and remove CPEXX_NATTR, which is redundant.
2014-08-01 22:38:36 +00:00
Dag-Erling Smørgrav
479ffbba4a
Remove author and sponsor tags; we'll deal with that some other way.
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Remove $Cryb$ tags as it is likely that the code will move to git.
2014-08-01 14:31:07 +00:00
Dag-Erling Smørgrav
526303caad
WIP: CPE library.
2014-08-01 14:18:25 +00:00
Dag-Erling Smørgrav
bec11577b0
sbuf-inspired managed string implementation which also supports wide
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strings.
2014-08-01 13:53:04 +00:00
Dag-Erling Smørgrav
fe2d45ad56
Create rol / ror functions for all integer sizes.
2014-07-19 15:36:07 +00:00
Dag-Erling Smørgrav
0023f57ab5
Add a library of general (non-cryptographic) hash functions, currently
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consisting of the Pearson string hash function and the Murmur3-32 hash
function.
2014-07-19 06:03:57 +00:00
Dag-Erling Smørgrav
541d65a3cc
pacify autoindenters
2014-07-19 02:59:42 +00:00
Dag-Erling Smørgrav
3ed82792fc
Fix a bug that affected unterminated buffers: strlcat() would write a NUL
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past the end of the buffer and return one less than the correct length.
2014-07-13 20:42:56 +00:00
Dag-Erling Smørgrav
910c782b2f
In the md4 code, use a 64-bit counter to avoid a manual carry operation.
2014-07-12 22:10:57 +00:00
Dag-Erling Smørgrav
340b3240cf
Consistently use const void * for data and keys, uint8_t * for digests
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and MACs, and uint8_t, uint32_t or uint64_t (as appropriate) for internal
state. Also remove a few unnecessary casts.
2014-07-12 21:57:31 +00:00
Dag-Erling Smørgrav
7f410bdfd3
Silence a GCC warning about an empty if statement.
2014-07-11 15:14:23 +00:00
Dag-Erling Smørgrav
30c8e19de7
Remove HMAC-MD2 and HMAC-MD4. They may or may not reappear at a later
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date in libcryb-mac.
2014-07-11 13:54:22 +00:00
Dag-Erling Smørgrav
729e501b79
Mechanical whitespace cleanup
2014-07-11 13:40:06 +00:00
Dag-Erling Smørgrav
2c697a472b
Implement SHA-224 and HMAC-SHA224.
2014-07-11 13:33:58 +00:00
Dag-Erling Smørgrav
6aa7f9a0e6
Implement HMAC-SHA{256,384,512} and add unit tests. Remove pre-existing
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HMAC implementations from the libcperciva and XySSL code.
2014-07-11 13:01:32 +00:00
Dag-Erling Smørgrav
5bb81214cc
Instead of storing the key in the hmac_sha1_ctx so we can compute the
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output pad in hmac_sha1_final(), prepare a sha1 context in advance and
discard the key as early as possible.
Inspired by Colin Percival's HMAC-SHA-256 implementation.
2014-07-11 10:28:55 +00:00
Dag-Erling Smørgrav
950a1770e5
Breathe
2014-07-11 10:11:18 +00:00