OpenSSL CHANGES
_______________
- Changes between 0.9.3a and 0.9.4
+ Changes between 0.9.4 and 0.9.5 [xx XXX 1999]
+
+ *) Initialize all non-automatic variables each time one of the openssl
+ sub-programs is started (this is necessary as they may be started
+ multiple times from the "OpenSSL>" prompt).
+ [Lennart Bang, Bodo Moeller]
+
+ *) Preliminary compilation option RSA_NULL which disables RSA crypto without
+ removing all other RSA functionality (this is what NO_RSA does). This
+ is so (for example) those in the US can disable those operations covered
+ by the RSA patent while allowing storage and parsing of RSA keys and RSA
+ key generation.
+ [Steve Henson]
+
+ *) Non-copying interface to BIO pairs.
+ (still totally untested)
+ [Bodo Moeller]
+
+ *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
+ ASCII string. This was handled independently in various places before.
+ [Steve Henson]
+
+ *) New functions UTF8_getc() and UTF8_putc() that parse and generate
+ UTF8 strings a character at a time.
+ [Steve Henson]
+
+ *) Use client_version from client hello to select the protocol
+ (s23_srvr.c) and for RSA client key exchange verification
+ (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
+ [Bodo Moeller]
+
+ *) Add various utility functions to handle SPKACs, these were previously
+ handled by poking round in the structure internals. Added new function
+ NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
+ print, verify and generate SPKACs. Based on an original idea from
+ Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
+ [Steve Henson]
+
+ *) RIPEMD160 is operational on all platforms and is back in 'make test'.
+ [Andy Polyakov]
+
+ *) Allow the config file extension section to be overwritten on the
+ command line. Based on an original idea from Massimiliano Pala
+ <madwolf@comune.modena.it>. 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 <TheAntony2@bigfoot.com>]
+
+ *) 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 <dmiller@ilogic.com.au>, 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_<TYPE>_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 <pre@mo.msk.ru>]
+
+ *) The x509 application mishandled signing requests containing DSA
+ keys when the signing key was also DSA and the parameters didn't match.
+
+ It was supposed to omit the parameters when they matched the signing key:
+ the verifying software was then supposed to automatically use the CA's
+ parameters if they were absent from the end user certificate.
+
+ Omitting parameters is no longer recommended. The test was also
+ the wrong way round! This was probably due to unusual behaviour in
+ EVP_cmp_parameters() which returns 1 if the parameters match.
+ This meant that parameters were omitted when they *didn't* match and
+ the certificate was useless. Certificates signed with 'ca' didn't have
+ this bug.
+ [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
+
+ *) 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();
+ "off" is now the default.
+ The library internally uses
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
+ to disable memory-checking temporarily.
+
+ 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 are:
+
+ SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
+ a single record has been written.
+ SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
+ retries use the same buffer location.
+ (But all of the contents must be
+ copied!)
+ [Bodo Moeller]
+
+ *) Bugfix: SSL_set_mode ignored its parameter, only SSL_CTX_set_mode
+ worked.
+
+ *) Fix problems with no-hmac etc.
+ [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
+
+ *) New functions RSA_get_default_method(), RSA_set_method() and
+ RSA_get_method(). These allows replacement of RSA_METHODs without having
+ to mess around with the internals of an RSA structure.
+ [Steve Henson]
+
+ *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
+ Also really enable memory leak checks in openssl.c and in some
+ test programs.
+ [Chad C. Mulligan, Bodo Moeller]
+
+ *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
+ up the length of negative integers. This has now been simplified to just
+ store the length when it is first determined and use it later, rather
+ than trying to keep track of where data is copied and updating it to
+ point to the end.
+ [Steve Henson, reported by Brien Wheeler
+ <bwheeler@authentica-security.com>]
*) Add a new function PKCS7_signatureVerify. This allows the verification
of a PKCS#7 signature but with the signing certificate passed to the
[Steve Henson]
*) mk1mf.pl (used by Windows builds) did not properly read the
- options set by Configure in the top level Makefile; typo fixed,
- now "no-idea" etc. works as intended.
+ options set by Configure in the top level Makefile, and Configure
+ was not even able to write more than one option correctly.
+ Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
[Bodo Moeller]
*) New functions CONF_load_bio() and CONF_load_fp() to allow a config
projects / openssl.git / blobdiff