diff options
Diffstat (limited to 'CHANGES')
| -rw-r--r-- | CHANGES | 219 |
1 files changed, 217 insertions, 2 deletions
@@ -1,10 +1,225 @@ - OpenSSL CHANGES _______________ Changes between 0.9.6 and 0.9.7 [xx XXX 2000] - *) Add VMS support for the Rijndael code + *) Changed the LHASH code to use prototypes for callbacks, and created + macros to declare and implement thin (optionally static) functions + that provide type-safety and avoid function pointer casting for the + type-specific callbacks. + [Geoff Thorpe] + + *) Use better test patterns in bntest. + [Ulf Möller] + + *) Added Kerberos Cipher Suites to be used with TLS, as written in + RFC 2712. + [Veers Staats <staatsvr@asc.hpc.mil>, + Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] + + *) rand_win.c fix for Borland C. + [Ulf Möller] + + *) BN_rshift bugfix for n == 0. + [Bodo Moeller] + + *) Reformat the FAQ so the different questions and answers can be divided + in sections depending on the subject. + [Richard Levitte] + + *) Have the zlib compression code load ZLIB.DLL dynamically under + Windows. + [Richard Levitte] + + *) New function BN_mod_sqrt for computing square roots modulo a prime + (Tonelli-Shanks algorithm). + [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] + + *) Store verify_result within SSL_SESSION also for client side to + avoid potential security hole. (Re-used sessions on the client side + always resulted in verify_result==X509_V_OK, not using the original + result of the server certificate verification.) + [Lutz Jaenicke] + + *) Make BN_mod_inverse faster by explicitly handling small quotients + in the Euclid loop. (Speed gain about 20% for small moduli [256 or + 512 bits], about 30% for larger ones [1024 or 2048 bits].) + [Bodo Moeller] + + *) Disable ssl2_peek and ssl3_peek (i.e., both implementations + of SSL_peek) because they both are completely broken. + They will be fixed RSN by adding an additional 'peek' parameter + to the internal read functions. + [Bodo Moeller] + + *) New function BN_kronecker. + [Bodo Moeller] + + *) Fix BN_gcd so that it works on negative inputs; the result is + positive unless both parameters are zero. + Previously something reasonably close to an infinite loop was + possible because numbers could be growing instead of shrinking + in the implementation of Euclid's algorithm. + [Bodo Moeller] + + *) Fix BN_is_word() and BN_is_one() macros to take into account the + sign of the number in question. + + Fix BN_is_word(a,w) to work correctly for w == 0. + + The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) + because its test if the absolute value of 'a' equals 'w'. + Note that BN_abs_is_word does *not* handle w == 0 reliably; + it exists mostly for use in the implementations of BN_is_zero(), + BN_is_one(), and BN_is_word(). + [Bodo Moeller] + + *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling + the method-specific "init()" handler. Also clean up ex_data after + calling the method-specific "finish()" handler. Previously, this was + happening the other way round. + [Geoff Thorpe] + + *) New function BN_swap. + [Bodo Moeller] + + *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that + the exponentiation functions are more likely to produce reasonable + results on negative inputs. + [Bodo Moeller] + + *) Change BN_mod_mul so that the result is always non-negative. + Previously, it could be negative if one of the factors was negative; + I don't think anyone really wanted that behaviour. + [Bodo Moeller] + + *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c + (except for exponentiation, which stays in crypto/bn/bn_exp.c, + and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) + and add new functions: + + BN_nnmod + BN_mod_sqr + BN_mod_add + BN_mod_add_quick + BN_mod_sub + BN_mod_sub_quick + BN_mod_lshift1 + BN_mod_lshift1_quick + BN_mod_lshift + BN_mod_lshift_quick + + These functions always generate non-negative results. + + BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r + such that |m| < r < 0, BN_nnmod will output rem + |m| instead). + + BN_mod_XXX_quick(r, a, [b,] m) generates the same result as + BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] + be reduced modulo m. + [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] + + *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there + was actually never needed) and in BN_mul(). The removal in BN_mul() + required a small change in bn_mul_part_recursive() and the addition + of the functions bn_cmp_part_words(), bn_sub_part_words() and + bn_add_part_words(), which do the same thing as bn_cmp_words(), + bn_sub_words() and bn_add_words() except they take arrays with + differing sizes. + [Richard Levitte] + + *) In 'openssl passwd', verify passwords read from the terminal + unless the '-salt' option is used (which usually means that + verification would just waste user's time since the resulting + hash is going to be compared with some given password hash) + or the new '-noverify' option is used. + + This is an incompatible change, but it does not affect + non-interactive use of 'openssl passwd' (passwords on the command + line, '-stdin' option, '-in ...' option) and thus should not + cause any problems. + [Bodo Moeller] + + *) Remove all references to RSAref, since there's no more need for it. + [Richard Levitte] + + *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. + The previous value, 12, was not always sufficient for BN_mod_exp(). + [Bodo Moeller] + + *) Make DSO load along a path given through an environment variable + (SHLIB_PATH) with shl_load(). + [Richard Levitte] + + *) Constify the ENGINE code as a result of BIGNUM constification. + Also constify the RSA code and most things related to it. In a + few places, most notable in the depth of the ASN.1 code, ugly + casts back to non-const were required (to be solved at a later + time) + [Richard Levitte] + + *) Make it so the openssl application has all engines loaded by default. + [Richard Levitte] + + *) Constify the BIGNUM routines a little more. + [Richard Levitte] + + *) Make sure that shared libraries get the internal name engine with + the full version number and not just 0. This should mark the + shared libraries as not backward compatible. Of course, this should + be changed again when we can guarantee backward binary compatibility. + [Richard Levitte] + + *) Add the following functions: + + ENGINE_load_cswift() + ENGINE_load_chil() + ENGINE_load_atalla() + ENGINE_load_nuron() + ENGINE_load_builtin_engines() + + That way, an application can itself choose if external engines that + are built-in in OpenSSL shall ever be used or not. The benefit is + that applications won't have to be linked with libdl or other dso + libraries unless it's really needed. + + Changed 'openssl engine' to load all engines on demand. + Changed the engine header files to avoid the duplication of some + declarations (they differed!). + [Richard Levitte] + + *) 'openssl engine' can now list capabilities. + [Richard Levitte] + + *) Better error reporting in 'openssl engine'. + [Richard Levitte] + + *) Never call load_dh_param(NULL) in s_server. + [Bodo Moeller] + + *) Add engine application. It can currently list engines by name and + identity, and test if they are actually available. + [Richard Levitte] + + *) Add support for shared libraries under Irix. + [Albert Chin-A-Young <china@thewrittenword.com>] + + *) Improve RPM specification file by forcing symbolic linking and making + sure the installed documentation is also owned by root.root. + [Damien Miller <djm@mindrot.org>] + + *) Add configuration option to build on Linux on both big-endian and + little-endian MIPS. + [Ralf Baechle <ralf@uni-koblenz.de>] + + *) Give the OpenSSL applications more possibilities to make use of + keys (public as well as private) handled by engines. + [Richard Levitte] + + *) Add OCSP code that comes from CertCo. + [Richard Levitte] + + *) Add VMS support for the Rijndael code. [Richard Levitte] *) Added untested support for Nuron crypto accelerator. |