OpenSSL CHANGES
_______________
+ Changes between 0.9.4 and 0.9.5 [xx XXX 1999]
- Changes between 0.9.2b and 0.9.3 [XX May 1999]
- [I suggest using the same format for the
- date as in opensslv.h. 0.9.1c used
- hyphens in the date, so I wrote
- [23-Dec-1998] down below; but in later
- versions, these hyphens are gone.]
+ *) 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
+ function itself. This contrasts with PKCS7_dataVerify which assumes the
+ certificate is present in the PKCS#7 structure. This isn't always the
+ case: certificates can be omitted from a PKCS#7 structure and be
+ distributed by "out of band" means (such as a certificate database).
+ [Steve Henson]
+
+ *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
+ function prototypes in pem.h, also change util/mkdef.pl to add the
+ necessary function names.
+ [Steve Henson]
+
+ *) mk1mf.pl (used by Windows builds) did not properly read the
+ 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
+ file to be loaded from a BIO or FILE pointer. The BIO version will
+ for example allow memory BIOs to contain config info.
+ [Steve Henson]
+
+ *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
+ Whoever hopes to achieve shared-library compatibility across versions
+ must use this, not the compile-time macro.
+ (Exercise 0.9.4: Which is the minimum library version required by
+ such programs?)
+ Note: All this applies only to multi-threaded programs, others don't
+ need locks.
+ [Bodo Moeller]
+
+ *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
+ through a BIO pair triggered the default case, i.e.
+ SSLerr(...,SSL_R_UNKNOWN_STATE).
+ [Bodo Moeller]
+
+ *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
+ can use the SSL library even if none of the specific BIOs is
+ appropriate.
+ [Bodo Moeller]
+
+ *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
+ for the encoded length.
+ [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
+
+ *) Add initial documentation of the X509V3 functions.
+ [Steve Henson]
+
+ *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
+ PEM_write_bio_PKCS8PrivateKey() that are equivalent to
+ PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
+ secure PKCS#8 private key format with a high iteration count.
+ [Steve Henson]
+
+ *) Fix determination of Perl interpreter: A perl or perl5
+ _directory_ in $PATH was also accepted as the interpreter.
+ [Ralf S. Engelschall]
+
+ *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
+ wrong with it but it was very old and did things like calling
+ PEM_ASN1_read() directly and used MD5 for the hash not to mention some
+ unusual formatting.
+ [Steve Henson]
+
+ *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
+ to use the new extension code.
+ [Steve Henson]
+
+ *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
+ with macros. This should make it easier to change their form, add extra
+ arguments etc. Fix a few PEM prototypes which didn't have cipher as a
+ constant.
+ [Steve Henson]
+
+ *) Add to configuration table a new entry that can specify an alternative
+ name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
+ according to Mark Crispin <MRC@Panda.COM>.
+ [Bodo Moeller]
+
+#if 0
+ *) DES CBC did not update the IV. Weird.
+ [Ben Laurie]
+#else
+ des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
+ Changing the behaviour of the former might break existing programs --
+ where IV updating is needed, des_ncbc_encrypt can be used.
+#endif
+
+ *) When bntest is run from "make test" it drives bc to check its
+ calculations, as well as internally checking them. If an internal check
+ fails, it needs to cause bc to give a non-zero result or make test carries
+ on without noticing the failure. Fixed.
+ [Ben Laurie]
+
+ *) DES library cleanups.
+ [Ulf Möller]
+
+ *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
+ used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
+ ciphers. NOTE: although the key derivation function has been verified
+ against some published test vectors it has not been extensively tested
+ yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
+ of v2.0.
+ [Steve Henson]
+
+ *) Instead of "mkdir -p", which is not fully portable, use new
+ Perl script "util/mkdir-p.pl".
+ [Bodo Moeller]
+
+ *) Rewrite the way password based encryption (PBE) is handled. It used to
+ assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
+ structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
+ but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
+ the 'parameter' field of the AlgorithmIdentifier is passed to the
+ underlying key generation function so it must do its own ASN1 parsing.
+ This has also changed the EVP_PBE_CipherInit() function which now has a
+ 'parameter' argument instead of literal salt and iteration count values
+ and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
+ [Steve Henson]
+
+ *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
+ and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
+ Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
+ KEY" because this clashed with PKCS#8 unencrypted string. Since this
+ value was just used as a "magic string" and not used directly its
+ value doesn't matter.
+ [Steve Henson]
+
+ *) Introduce some semblance of const correctness to BN. Shame C doesn't
+ support mutable.
+ [Ben Laurie]
+
+ *) "linux-sparc64" configuration (ultrapenguin).
+ [Ray Miller <ray.miller@oucs.ox.ac.uk>]
+ "linux-sparc" configuration.
+ [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
+
+ *) config now generates no-xxx options for missing ciphers.
+ [Ulf Möller]
+
+ *) Support the EBCDIC character set (work in progress).
+ File ebcdic.c not yet included because it has a different license.
+ [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
+
+ *) Support BS2000/OSD-POSIX.
+ [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
+
+ *) Make callbacks for key generation use void * instead of char *.
+ [Ben Laurie]
+
+ *) Make S/MIME samples compile (not yet tested).
+ [Ben Laurie]
+
+ *) Additional typesafe stacks.
+ [Ben Laurie]
+
+ *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
+ [Bodo Moeller]
+
+
+ Changes between 0.9.3 and 0.9.3a [29 May 1999]
+
+ *) New configuration variant "sco5-gcc".
+
+ *) Updated some demos.
+ [Sean O Riordain, Wade Scholine]
+
+ *) Add missing BIO_free at exit of pkcs12 application.
+ [Wu Zhigang]
+
+ *) Fix memory leak in conf.c.
+ [Steve Henson]
+
+ *) Updates for Win32 to assembler version of MD5.
+ [Steve Henson]
+
+ *) Set #! path to perl in apps/der_chop to where we found it
+ instead of using a fixed path.
+ [Bodo Moeller]
+
+ *) SHA library changes for irix64-mips4-cc.
+ [Andy Polyakov]
+
+ *) Improvements for VMS support.
+ [Richard Levitte]
+
+
+ Changes between 0.9.2b and 0.9.3 [24 May 1999]
+
+ *) Bignum library bug fix. IRIX 6 passes "make test" now!
+ This also avoids the problems with SC4.2 and unpatched SC5.
+ [Andy Polyakov <appro@fy.chalmers.se>]
+
+ *) New functions sk_num, sk_value and sk_set to replace the previous macros.
+ These are required because of the typesafe stack would otherwise break
+ existing code. If old code used a structure member which used to be STACK
+ and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
+ sk_num or sk_value it would produce an error because the num, data members
+ are not present in STACK_OF. Now it just produces a warning. sk_set
+ replaces the old method of assigning a value to sk_value
+ (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
+ that does this will no longer work (and should use sk_set instead) but
+ this could be regarded as a "questionable" behaviour anyway.
+ [Steve Henson]
+
+ *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
+ correctly handle encrypted S/MIME data.
+ [Steve Henson]
+
+ *) Change type of various DES function arguments from des_cblock
+ (which means, in function argument declarations, pointer to char)
+ to des_cblock * (meaning pointer to array with 8 char elements),
+ which allows the compiler to do more typechecking; it was like
+ that back in SSLeay, but with lots of ugly casts.
+
+ Introduce new type const_des_cblock.
+ [Bodo Moeller]
+
+ *) Reorganise the PKCS#7 library and get rid of some of the more obvious
+ problems: find RecipientInfo structure that matches recipient certificate
+ and initialise the ASN1 structures properly based on passed cipher.
+ [Steve Henson]
+
+ *) Belatedly make the BN tests actually check the results.
+ [Ben Laurie]
*) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
to and from BNs: it was completely broken. New compilation option
[Ulf Möller]
*) Tweaks to Configure
- Niels Poppe <niels@netbox.org>
+ [Niels Poppe <niels@netbox.org>]
*) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
yet...
projects / openssl.git / blobdiff