X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=CHANGES;h=24f977df028089ec928cab3527c2f6eec0f3a011;hp=3f32fc3d224d1da7d9b3125bff61e36164b00091;hb=2d0c55eda27ce91946d5b15c3b38138cda3a3564;hpb=f7daafa442b79952d84646b7bd5e3d368669d920 diff --git a/CHANGES b/CHANGES index 3f32fc3d22..24f977df02 100644 --- a/CHANGES +++ b/CHANGES @@ -2,7 +2,209 @@ OpenSSL CHANGES _______________ - Changes between 0.9.3a and 0.9.4 + Changes between 0.9.4 and 0.9.5 [xx XXX 1999] + + *) Allow the config file extension section to be overwritten on the + command line. Based on an original idea from Massimiliano Pala + . The new option is called -extensions + and can be applied to ca, req and x509. Also -reqexts to override + the request extensions in req and -crlexts to override the crl extensions + in ca. + [Steve Henson] + + *) Add new feature to the SPKAC handling in ca. Now you can include + the same field multiple times by preceding it by "XXXX." for example: + 1.OU="Unit name 1" + 2.OU="Unit name 2" + this is the same syntax as used in the req config file. + [Steve Henson] + + *) Allow certificate extensions to be added to certificate requests. These + are specified in a 'req_extensions' option of the req section of the + config file. They can be printed out with the -text option to req but + are otherwise ignored at present. + [Steve Henson] + + *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first data + read consists of only the final block it would not decrypted because + EVP_CipherUpdate() would correctly report zero bytes had been decrypted. + A misplaced 'break' also meant the decrypted final block might not be + copied until the next read. + [Steve Henson] + + *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added + a few extra parameters to the DH structure: these will be useful if + for example we want the value of 'q' or implement X9.42 DH. + [Steve Henson] + + *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and + provides hooks that allow the default DSA functions or functions on a + "per key" basis to be replaced. This allows hardware acceleration and + hardware key storage to be handled without major modification to the + library. Also added low level modexp hooks and CRYPTO_EX structure and + associated functions. + [Steve Henson] + + *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO + as "read only": it can't be written to and the buffer it points to will + not be freed. Reading from a read only BIO is much more efficient than + a normal memory BIO. This was added because there are several times when + an area of memory needs to be read from a BIO. The previous method was + to create a memory BIO and write the data to it, this results in two + copies of the data and an O(n^2) reading algorithm. There is a new + function BIO_new_mem_buf() which creates a read only memory BIO from + an area of memory. Also modified the PKCS#7 routines to use read only + memory BIOSs. + [Steve Henson] + + *) Bugfix: ssl23_get_client_hello did not work properly when called in + state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of + a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, + but a retry condition occured while trying to read the rest. + [Bodo Moeller] + + *) The PKCS7_ENC_CONTENT_new() function was setting the content type as + NID_pkcs7_encrypted by default: this was wrong since this should almost + always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle + the encrypted data type: this is a more sensible place to put it and it + allows the PKCS#12 code to be tidied up that duplicated this + functionality. + [Steve Henson] + + *) Changed obj_dat.pl script so it takes its input and output files on + the command line. This should avoid shell escape redirection problems + under Win32. + [Steve Henson] + + *) Initial support for certificate extension requests, these are included + in things like Xenroll certificate requests. Included functions to allow + extensions to be obtained and added. + [Steve Henson] + + *) -crlf option to s_client and s_server for sending newlines as + CRLF (as required by many protocols). + [Bodo Moeller] + + Changes between 0.9.3a and 0.9.4 [09 Aug 1999] + + *) Install libRSAglue.a when OpenSSL is built with RSAref. + [Ralf S. Engelschall] + + *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. + [Andrija Antonijevic ] + + *) Fix -startdate and -enddate (which was missing) arguments to 'ca' + program. + [Steve Henson] + + *) New function DSA_dup_DH, which duplicates DSA parameters/keys as + DH parameters/keys (q is lost during that conversion, but the resulting + DH parameters contain its length). + + For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is + much faster than DH_generate_parameters (which creates parameters + where p = 2*q + 1), and also the smaller q makes DH computations + much more efficient (160-bit exponentiation instead of 1024-bit + exponentiation); so this provides a convenient way to support DHE + ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of + utter importance to use + SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); + or + SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); + when such DH parameters are used, because otherwise small subgroup + attacks may become possible! + [Bodo Moeller] + + *) Avoid memory leak in i2d_DHparams. + [Bodo Moeller] + + *) Allow the -k option to be used more than once in the enc program: + this allows the same encrypted message to be read by multiple recipients. + [Steve Henson] + + *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts + an ASN1_OBJECT to a text string. If the "no_name" parameter is set then + it will always use the numerical form of the OID, even if it has a short + or long name. + [Steve Henson] + + *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp + method only got called if p,q,dmp1,dmq1,iqmp components were present, + otherwise bn_mod_exp was called. In the case of hardware keys for example + no private key components need be present and it might store extra data + in the RSA structure, which cannot be accessed from bn_mod_exp. By setting + RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for private key + operations. + [Steve Henson] + + *) Added support for SPARC Linux. + [Andy Polyakov] + + *) pem_password_cb function type incompatibly changed from + typedef int pem_password_cb(char *buf, int size, int rwflag); + to + ....(char *buf, int size, int rwflag, void *userdata); + so that applications can pass data to their callbacks: + The PEM[_ASN1]_{read,write}... functions and macros now take an + additional void * argument, which is just handed through whenever + the password callback is called. + [Damien Miller , with tiny changes by Bodo Moeller] + + New function SSL_CTX_set_default_passwd_cb_userdata. + + Compatibility note: As many C implementations push function arguments + onto the stack in reverse order, the new library version is likely to + interoperate with programs that have been compiled with the old + pem_password_cb definition (PEM_whatever takes some data that + happens to be on the stack as its last argument, and the callback + just ignores this garbage); but there is no guarantee whatsoever that + this will work. + + *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... + (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused + problems not only on Windows, but also on some Unix platforms. + To avoid problematic command lines, these definitions are now in an + auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl + for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). + [Bodo Moeller] + + *) MIPS III/IV assembler module is reimplemented. + [Andy Polyakov] + + *) More DES library cleanups: remove references to srand/rand and + delete an unused file. + [Ulf Möller] + + *) Add support for the the free Netwide assembler (NASM) under Win32, + since not many people have MASM (ml) and it can be hard to obtain. + This is currently experimental but it seems to work OK and pass all + the tests. Check out INSTALL.W32 for info. + [Steve Henson] + + *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections + without temporary keys kept an extra copy of the server key, + and connections with temporary keys did not free everything in case + of an error. + [Bodo Moeller] + + *) New function RSA_check_key and new openssl rsa option -check + for verifying the consistency of RSA keys. + [Ulf Moeller, Bodo Moeller] + + *) Various changes to make Win32 compile work: + 1. Casts to avoid "loss of data" warnings in p5_crpt2.c + 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned + comparison" warnings. + 3. Add sk__sort to DEF file generator and do make update. + [Steve Henson] + + *) Add a debugging option to PKCS#5 v2 key generation function: when + you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and + derived keys are printed to stderr. + [Steve Henson] + + *) Copy the flags in ASN1_STRING_dup(). + [Roman E. Pavlov ] *) The x509 application mishandled signing requests containing DSA keys when the signing key was also DSA and the parameters didn't match. @@ -19,7 +221,8 @@ this bug. [Steve Henson, reported by Doug Erickson ] - *) Memory leak checking had some problems. The interface is as follows: + *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. + The interface is as follows: Applications can use CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); @@ -31,12 +234,21 @@ Some inconsistent states that previously were possible (and were even the default) are now avoided. + + -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time + with each memory chunk allocated; this is occasionally more helpful + than just having a counter. + + -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. + + -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future + extensions. [Bodo Moeller] *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), which largely parallels "options", but is for changing API behaviour, whereas "options" are about protocol behaviour. - Initial "mode" flags (still experimental) are: + Initial "mode" flags are: SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when a single record has been written.