Mercurial > dropbear
diff changes @ 143:5d99163f7e32 libtomcrypt-orig
import of libtomcrypt 0.99
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sun, 19 Dec 2004 11:34:45 +0000 |
parents | 6362d3854bb4 |
children | 1c15b283127b |
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--- a/changes Tue Jun 15 14:07:21 2004 +0000 +++ b/changes Sun Dec 19 11:34:45 2004 +0000 @@ -1,10 +1,138 @@ +October 29th, 2004 +v0.99 -- Merged in the latest version of LTM which includes all of the recent bug fixes + -- Deprecated LTMSSE and removed it (to be replaced with TFM later on) + -- Stefan Arentz pointed out that mp_s_rmap should be extern + -- Kristian Gj�steen pointed out that there are typos in the + "test" makefile and minor issues in Yarrow and Sober [just cosmetics really] + -- Matthew P. Cashdollar pointed out that "export" is a C++ keyword + so changed the PRNG api to use "pexport" and "pimport" + -- Updated "hashsum" demo so it builds ;-) + -- Added automatic support for x86-64 (will configure for 64-bit little endian automagically) + -- Zhi Chen pointed out a bug in rsa_exptmod which would leak memory on error. + -- Made hash functions "init" return an int. slight change to API ;-( + -- Added "CHC" mode which turns any cipher into a hash the other LTC functions can use + -- Added CHC mode stuff to demos such as tv_gen and hashsum + -- Added "makefile.shared" which builds and installs shared/static object copies + of the library. + -- Added DER for bignum support + -- RSA is now fully joy. rsa_export/rsa_import use PKCS #1 encodings and should be + compatible with other crypto libs that use the format. + -- Added support for x86-64 for the ROL/ROR macros + -- Changed the DLL and SO makefiles to optimize for speed, commented SMALL_CODE in + mycrypt_custom.h and added -DSMALL_CODE to the default makefile + -- Updated primality testing code so it does a minimum of 5 tests [of Miller-Rabin] + (AFAIK not a security fix, just warm fuzzies) + -- Minor updates to the OMAC code (additional __ARGCHK and removed printf from omac_test... oops!) + -- Update build and configuration info which was really really really out of date. (Chapter 14) + ++ Minor update, switch RSA to use the PKCS style CRT + +August 6th, 2004 +v0.98 -- Update to hmac_init to free all allocated memory on error + -- Update to PRNG API to fix import/export functions of Fortuna and Yarrow + -- Added test functions to PRNG api, RC4 now conforms ;-) [was a minor issue] + -- Added the SOBER-128 PRNG based off of code donated by Greg Rose. + -- Added Tech Note #4 [notes/tech0004.txt] + -- Changed RC4 back [due to request]. It will now XOR the output so you can use it like + a stream cipher easily. + -- Update Fortuna's export() to emit a hash of each pool. This means that the accumulated + entropy that was spread over all the pools isn't entirely lost when you export/import. + -- Zhi Chen suggested a comment for rsa_encrypt_key() to let users know [easily] that it was + PKCS #1 v2.0 padding. (updated other rsa_* functions) + -- Cleaned up Noekeon to remove unrolling [wasn't required, was messy and actually slower with GCC/ICC] + -- Updated RC4 so that when you feed it >256 bytes of entropy it quietly ignores additional + bytes. Also removed the % from the key setup to speed it up a bit. + -- Added cipher/hash/prng tests to x86_prof to help catch bugs while testing + -- Made the PRNG "done" return int, fixed sprng_done to not require prng* to be non-null + -- Spruced up mycrypt_custom.h to trap more errors and also help prevent LTMSSE from being defined + on non-i386 platforms by accident. + -- Added RSA/ECC/DH speed tests to x86_prof and cleaned it up to build with zero warnings + -- Changed Fortuna to count only entropy [not the 2 byte header] added to pool[0] into the + reseed mechanism. + -- Added "export_size" member to prng_descriptor tables so you can know in advance the size of + the exported state for any given PRNG. + -- Ported over patch on LTM 0.30 [not ready to release LTM 0.31] that fixes bug in mp_mul()/mp_div() + that used to result in negative zeroes when you multiplied zero by a negative integer. + (patch due to "Wolfgang Ehrhardt" <[email protected]>) + -- Fixed rsa_*decrypt_key() and rsa_*verify_hash() to default to invalid "stat" or "res". This way + if any of the higher level functions fail [before you get to the padding] the result will be in + a known state]. Applied to both v2 and v1.5 padding helpers. + -- Added MACs to x86_prof + -- Fixed up "warnings" in x86_prof and tv_gen + -- Added a "profiled" target back [for GCC 3.4 and ICC v8]. Doesn't seem to help but might be worth + tinkering with. + -- Beefed up load/store test in demos/test + + ++ New note, in order to use the optimized LOAD/STORE macros your platform + must support unaligned 32/64 bit load/stores. The x86s support this + but some [ARM for instance] do not. If your platform cannot perform + unaligned operations you must use the endian neutral code which is safe for + any sort of platform. + +July 23rd, 2004 +v0.97b -- Added PKCS #1 v1.5 RSA encrypt/sign helpers (like rsa_sign_hash, etc...) + -- Added missing prng check to rsa_decrypt_key() [not critical as I don't use + descriptors directly in that function] + -- Merged in LTM-SSE, define LTMSSE before you build and you will get SSE2 optimized math ;-) + (roughly 3x faster on a P4 Northwood). By default it will compile as ISO C portable + code (when LTMSSE is undefined). + -- Fixed bug in ltc_tommath.h where I had the kara/toom cutoffs not marked as ``extern'' + Thanks to "Stefan Arentz" <stefan at organicnetwork.net> + -- Steven Dake <[email protected]> and Richard Amacker <[email protected]> submitted patches to + fix pkcs_5_2(). It now matches the output of another crypto library. Whoops... hehehe + -- Updated PRNG api. Added Fortuna PRNG to the list of supported PRNGs + -- Fixed up the descriptor tables since globals are automatically zero'ed on startup. + -- Changed RC4 to store it's output. If you want to encrypt with RC4 + you'll have to do the XOR yourself. + -- Fixed buffer overflows/overruns in the HMAC code. + + ++ API change for the PRNGs there now is a done() function per PRNG. You + should call it when you are done with a prng state. So far it's + not absolutely required (won't cause problems) but is a good idea to + start. + + +June 23rd, 2004 +v0.97a ++ Fixed several potentially crippling bugs... [read on] + -- Fixed bug in OAEP decoder that would incorrectly report + buffer overflows. [Zhi Chen] + -- Fixed headers which had various C++ missing [extern "C"]'s + -- Added "extern" to sha384_desc descriptor which I removed by mistake + -- Fixed bugs in ENDIAN_BIG macros using the wrong byte order [Matt Johnston] + -- Updated tiger.c and des.c to not shadow "round" which is intrinsic on + some C compilers. + -- Updated demos/test/rsa_test.c to test the RSA functionality better + ++ This update has been tested with GCC [v3.3.3], ICC [v8] and MSVC [v6+SP6] + all on a x86 P4 [GCC/ICC tested in Gentoo Linux, MSVC in WinXP] + ++ Outcome: The bug Zhi Chen pointed out has been fixed. So have the bugs + that Matt Johnston found. + +June 19th, 2004 +v0.97 -- Removed spurious unused files [arrg!] + -- Patched buffer overflow in tim_exptmod() + -- Fixed buffer overrun bug in pkcs_1_v15_es_decode() + -- Reduced stack usage in PKCS #1 v2.0 padding functions (by several KBs) + -- Removed useless extern's that were an artifact from the project start... ;-) + -- Replaced memcpy/memset with XMEMCPY and XMEMSET for greater flexibility + -- fixed bugs in hmac_done()/hmac_init()/[various others()] where I didn't trap errors + -- Reduced stack usage in OMAC/PMAC/HMAC/EAX/OCB/PKCS#5 by mallocing any significant sized + arrays (e.g. > 100 bytes or so). Only in non-critical functions (e.g. eax_init()) + -- "Zhi Chen" <[email protected]> pointed out that rsa_decrypt_key() requires + an incorrect output size (too large). Fixed. + -- Added a "pretty" target to the GCC makefile. Requires PERL. It is NEAT! + -- Minor updates to ch1 of the manual. + -- Cleaned up the indentation and added comments to rsa_make_key(), rsa_exptmod() and + rsa_verify_hash() + -- Updated makefile.icc so the "install" target would work ;-) + -- Removed demos/test.c [deprecated from demos/test/test.c] + -- Changed MAXBLOCKSIZE from 128 to 64 to reflect the true size... + May 30th, 2004 v0.96 -- Removed GF and Keyring code -- Extended OAEP decoder to distinguish better [and use a more uniform API] -- Changed PSS/OAEP API slightly to be more consistent with other PK functions (order of arguments) -- rsa_exptmod() now pads with leading zeroes as per I2OSP. -- added error checking to yarrow code - -- Mike Frysinger pointed out that tommath.h from this distro will overwrite tommath.h + -- pointed out that tommath.h from this distro will overwrite tommath.h from libtommath. I changed this to ltc_tommath.h to avoid any such problems. -- Fixed bug in PSS encoder/decoder that didn't handle the MSB properly -- refactored AES, now sports an "encrypt only" descriptor which uses half as much code space.