Changes between 0.9.6 and 0.9.7 [xx XXX 2001]
- Both OpenSSL 0.9.6a (bugfix release, 5 Apr 2001) and OpenSSL 0.9.7
- are based on OpenSSL 0.9.6.
+ OpenSSL 0.9.6a/0.9.6b (bugfix releases, 5 Apr 2001 and 9 July 2001)
+ and OpenSSL 0.9.7 were developed in parallel, based on OpenSSL 0.9.6.
+
Change log entries are tagged as follows:
- -) applies to 0.9.6a (/0.9.6b) only
- *) applies to 0.9.6a (/0.9.6b) and 0.9.7
+ -) applies to 0.9.6a/0.9.6b/0.9.6c only
+ *) applies to 0.9.6a/0.9.6b/0.9.6c and 0.9.7
+) applies to 0.9.7 only
- *) Change all calls to low level digest routines in the library and
+ -) [In 0.9.6c-engine release:]
+ Add support for Broadcom crypto accelerator cards, backported
+ from 0.9.7.
+ [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
+
+ -) [In 0.9.6c-engine release:]
+ Add support for SureWare crypto accelerator cards from
+ Baltimore Technologies. (Use engine 'sureware')
+ [Baltimore Technologies and Mark Cox]
+
+ -) [In 0.9.6c-engine release:]
+ Add support for crypto accelerator cards from Accelerated
+ Encryption Processing, www.aep.ie. (Use engine 'aep')
+ [AEP Inc. and Mark Cox]
+
+ *) Add a configuration entry for gcc on UnixWare.
+ [Gary Benson <gbenson@redhat.com>]
+
+ +) New functions/macros
+
+ SSL_CTX_set_msg_callback(ctx, cb)
+ SSL_CTX_set_msg_callback_arg(ctx, arg)
+ SSL_set_msg_callback(ssl, cb)
+ SSL_set_msg_callback_arg(ssl, arg)
+
+ to request calling a callback function
+
+ void cb(int write_p, int version, int content_type,
+ const void *buf, size_t len, SSL *ssl, void *arg)
+
+ whenever a protocol message has been completely received
+ (write_p == 0) or sent (write_p == 1). Here 'version' is the
+ protocol version according to which the SSL library interprets
+ the current protocol message (SSL2_VERSION, SSL3_VERSION, or
+ TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
+ the content type as defined in the SSL 3.0/TLS 1.0 protocol
+ specification (change_cipher_spec(20), alert(21), handshake(22)).
+ 'buf' and 'len' point to the actual message, 'ssl' to the
+ SSL object, and 'arg' is the application-defined value set by
+ SSL[_CTX]_set_msg_callback_arg().
+
+ 'openssl s_client' and 'openssl s_server' have new '-msg' options
+ to enable a callback that displays all protocol messages.
+ [Bodo Moeller]
+
+ *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
+ messages are stored in a single piece (fixed-length part and
+ variable-length part combined) and fix various bugs found on the way.
+ [Bodo Moeller]
+
+ +) Change the shared library support so shared libraries are built as
+ soon as the corresponding static library is finished, and thereby get
+ openssl and the test programs linked against the shared library.
+ This still only happens when the keyword "shard" has been given to
+ the configuration scripts.
+
+ NOTE: shared library support is still an experimental thing, and
+ backward binary compatibility is still not guaranteed.
+ ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
+
+ +) Add support for Subject Information Access extension.
+ [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
+
+ +) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
+ additional bytes when new memory had to be allocated, not just
+ when reusing an existing buffer.
+ [Bodo Moeller]
+
+ *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
+ instead. BIO_gethostbyname() does not know what timeouts are
+ appropriate, so entries would stay in cache even when they have
+ become invalid.
+ [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
+
+ +) New command line and configuration option 'utf8' for the req command.
+ This allows field values to be specified as UTF8 strings.
+ [Steve Henson]
+
+ +) Add -multi and -mr options to "openssl speed" - giving multiple parallel
+ runs for the former and machine-readable output for the latter.
+ [Ben Laurie]
+
+ +) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
+ of the e-mail address in the DN (i.e., it will go into a certificate
+ extension only). The new configuration file option 'email_in_dn = no'
+ has the same effect.
+ [Massimiliano Pala madwolf@openca.org]
+
+ *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
+ faced with a pathologically small ClientHello fragment that does
+ not contain client_version: Instead of aborting with an error,
+ simply choose the highest available protocol version (i.e.,
+ TLS 1.0 unless it is disabled). In practice, ClientHello
+ messages are never sent like this, but this change gives us
+ strictly correct behaviour at least for TLS.
+ [Bodo Moeller]
+
+ +) Change all functions with names starting with des_ to be starting
+ with DES_ instead. This because there are increasing clashes with
+ libdes and other des libraries that are currently used by other
+ projects. The old libdes interface is provided, as well as crypt(),
+ if openssl/des_old.h is included. Note that crypt() is no longer
+ declared in openssl/des.h.
+
+ NOTE: This is a major break of an old API into a new one. Software
+ authors are encouraged to switch to the DES_ style functions. Some
+ time in the future, des_old.h and the libdes compatibility functions
+ will be completely removed.
+ [Richard Levitte]
+
+ *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
+ never resets s->method to s->ctx->method when called from within
+ one of the SSL handshake functions.
+ [Bodo Moeller; problem pointed out by Niko Baric]
+
+ +) Test for certificates which contain unsupported critical extensions.
+ If such a certificate is found during a verify operation it is
+ rejected by default: this behaviour can be overridden by either
+ handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
+ by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
+ X509_supported_extension() has also been added which returns 1 if a
+ particular extension is supported.
+ [Steve Henson]
+
+ *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
+ (sent using the client's version number) if client_version is
+ smaller than the protocol version in use. Also change
+ ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
+ the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
+ the client will at least see that alert.
+ [Bodo Moeller]
+
+ +) Modify the behaviour of EVP cipher functions in similar way to digests
+ to retain compatibility with existing code.
+ [Steve Henson]
+
+ +) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
+ compatibility with existing code. In particular the 'ctx' parameter does
+ not have to be to be initialized before the call to EVP_DigestInit() and
+ it is tidied up after a call to EVP_DigestFinal(). New function
+ EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
+ EVP_MD_CTX_copy() changed to not require the destination to be
+ initialized valid and new function EVP_MD_CTX_copy_ex() added which
+ requires the destination to be valid.
+
+ Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
+ EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
+ [Steve Henson]
+
+ +) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
+ so that complete 'Handshake' protocol structures are kept in memory
+ instead of overwriting 'msg_type' and 'length' with 'body' data.
+ [Bodo Moeller]
+
+ *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
+ correctly.
+ [Bodo Moeller]
+
+ +) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
+ [Massimo Santin via Richard Levitte]
+
+ +) Major restructuring to the underlying ENGINE code. This includes
+ reduction of linker bloat, separation of pure "ENGINE" manipulation
+ (initialisation, etc) from functionality dealing with implementations
+ of specific crypto iterfaces. This change also introduces integrated
+ support for symmetric ciphers and digest implementations - so ENGINEs
+ can now accelerate these by providing EVP_CIPHER and EVP_MD
+ implementations of their own. This is detailed in crypto/engine/README
+ as it couldn't be adequately described here. However, there are a few
+ API changes worth noting - some RSA, DSA, DH, and RAND functions that
+ were changed in the original introduction of ENGINE code have now
+ reverted back - the hooking from this code to ENGINE is now a good
+ deal more passive and at run-time, operations deal directly with
+ RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
+ dereferencing through an ENGINE pointer any more. Also, the ENGINE
+ functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
+ they were not being used by the framework as there is no concept of a
+ BIGNUM_METHOD and they could not be generalised to the new
+ 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
+ ENGINE_cpy() has been removed as it cannot be consistently defined in
+ the new code.
+ [Geoff Thorpe]
+
+ +) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
+ [Steve Henson]
+
+ +) Change mkdef.pl to sort symbols that get the same entry number,
+ and make sure the automatically generated functions ERR_load_*
+ become part of libeay.num as well.
+ [Richard Levitte]
+
+ *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
+ client receives HelloRequest while in a handshake.
+ [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ +) New function SSL_renegotiate_pending(). This returns true once
+ renegotiation has been requested (either SSL_renegotiate() call
+ or HelloRequest/ClientHello receveived from the peer) and becomes
+ false once a handshake has been completed.
+ (For servers, SSL_renegotiate() followed by SSL_do_handshake()
+ sends a HelloRequest, but does not ensure that a handshake takes
+ place. SSL_renegotiate_pending() is useful for checking if the
+ client has followed the request.)
+ [Bodo Moeller]
+
+ +) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
+ By default, clients may request session resumption even during
+ renegotiation (if session ID contexts permit); with this option,
+ session resumption is possible only in the first handshake.
+ [Bodo Moeller]
+
+ *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
+ should end in 'break', not 'goto end' which circuments various
+ cleanups done in state SSL_ST_OK. But session related stuff
+ must be disabled for SSL_ST_OK in the case that we just sent a
+ HelloRequest.
+
+ Also avoid some overhead by not calling ssl_init_wbio_buffer()
+ before just sending a HelloRequest.
+ [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
+
+ *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
+ reveal whether illegal block cipher padding was found or a MAC
+ verification error occured. (Neither SSLerr() codes nor alerts
+ are directly visible to potential attackers, but the information
+ may leak via logfiles.)
+
+ Similar changes are not required for the SSL 2.0 implementation
+ because the number of padding bytes is sent in clear for SSL 2.0,
+ and the extra bytes are just ignored. However ssl/s2_pkt.c
+ failed to verify that the purported number of padding bytes is in
+ the legal range.
+ [Bodo Moeller]
+
+ +) Add some demos for certificate and certificate request creation.
+ [Steve Henson]
+
+ +) Make maximum certificate chain size accepted from the peer application
+ settable (SSL*_get/set_max_cert_list()), as proposed by
+ "Douglas E. Engert" <deengert@anl.gov>.
+ [Lutz Jaenicke]
+
+ +) Add support for shared libraries for Unixware-7
+ (Boyd Lynn Gerber <gerberb@zenez.com>).
+ [Lutz Jaenicke]
+
+ *) Add OpenUNIX-8 support including shared libraries
+ (Boyd Lynn Gerber <gerberb@zenez.com>).
+ [Lutz Jaenicke]
+
+ *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
+ 'wristwatch attack' using huge encoding parameters (cf.
+ James H. Manger's CRYPTO 2001 paper). Note that the
+ RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
+ encoding parameters and hence was not vulnerable.
+ [Bodo Moeller]
+
+ +) Add a "destroy" handler to ENGINEs that allows structural cleanup to
+ be done prior to destruction. Use this to unload error strings from
+ ENGINEs that load their own error strings. NB: This adds two new API
+ functions to "get" and "set" this destroy handler in an ENGINE.
+ [Geoff Thorpe]
+
+ +) Alter all existing ENGINE implementations (except "openssl" and
+ "openbsd") to dynamically instantiate their own error strings. This
+ makes them more flexible to be built both as statically-linked ENGINEs
+ and self-contained shared-libraries loadable via the "dynamic" ENGINE.
+ Also, add stub code to each that makes building them as self-contained
+ shared-libraries easier (see README.ENGINE).
+ [Geoff Thorpe]
+
+ +) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
+ implementations into applications that are completely implemented in
+ self-contained shared-libraries. The "dynamic" ENGINE exposes control
+ commands that can be used to configure what shared-library to load and
+ to control aspects of the way it is handled. Also, made an update to
+ the README.ENGINE file that brings its information up-to-date and
+ provides some information and instructions on the "dynamic" ENGINE
+ (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
+ [Geoff Thorpe]
+
+ *) BN_sqr() bug fix.
+ [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
+
+ *) Make it possible to unload ranges of ERR strings with a new
+ "ERR_unload_strings" function.
+ [Geoff Thorpe]
+
+ *) Rabin-Miller test analyses assume uniformly distributed witnesses,
+ so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
+ followed by modular reduction.
+ [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
+
+ *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
+ equivalent based on BN_pseudo_rand() instead of BN_rand().
+ [Bodo Moeller]
+
+ +) Add a copy() function to EVP_MD.
+ [Ben Laurie]
+
+ +) Make EVP_MD routines take a context pointer instead of just the
+ md_data void pointer.
+ [Ben Laurie]
+
+ +) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
+ that the digest can only process a single chunk of data
+ (typically because it is provided by a piece of
+ hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
+ is only going to provide a single chunk of data, and hence the
+ framework needn't accumulate the data for oneshot drivers.
+ [Ben Laurie]
+
+ +) As with "ERR", make it possible to replace the underlying "ex_data"
+ functions. This change also alters the storage and management of global
+ ex_data state - it's now all inside ex_data.c and all "class" code (eg.
+ RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
+ index counters. The API functions that use this state have been changed
+ to take a "class_index" rather than pointers to the class's local STACK
+ and counter, and there is now an API function to dynamically create new
+ classes. This centralisation allows us to (a) plug a lot of the
+ thread-safety problems that existed, and (b) makes it possible to clean
+ up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
+ such data would previously have always leaked in application code and
+ workarounds were in place to make the memory debugging turn a blind eye
+ to it. Application code that doesn't use this new function will still
+ leak as before, but their memory debugging output will announce it now
+ rather than letting it slide.
+
+ Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
+ induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
+ has a return value to indicate success or failure.
+ [Geoff Thorpe]
+
+ +) Make it possible to replace the underlying "ERR" functions such that the
+ global state (2 LHASH tables and 2 locks) is only used by the "default"
+ implementation. This change also adds two functions to "get" and "set"
+ the implementation prior to it being automatically set the first time
+ any other ERR function takes place. Ie. an application can call "get",
+ pass the return value to a module it has just loaded, and that module
+ can call its own "set" function using that value. This means the
+ module's "ERR" operations will use (and modify) the error state in the
+ application and not in its own statically linked copy of OpenSSL code.
+ [Geoff Thorpe]
+
+ +) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
+ reference counts. This performs normal REF_PRINT/REF_CHECK macros on
+ the operation, and provides a more encapsulated way for external code
+ (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
+ to use these functions rather than manually incrementing the counts.
+
+ Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
+ [Geoff Thorpe]
+
+ *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
+ This function was broken, as the check for a new client hello message
+ to handle SGC did not allow these large messages.
+ (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
+ [Lutz Jaenicke]
+
+ *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
+ [Lutz Jaenicke]
+
+ +) Add EVP test program.
+ [Ben Laurie]
+
+ +) Add symmetric cipher support to ENGINE. Expect the API to change!
+ [Ben Laurie]
+
+ +) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
+ X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
+ X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
+ These allow a CRL to be built without having to access X509_CRL fields
+ directly. Modify 'ca' application to use new functions.
+ [Steve Henson]
+
+ *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
+ for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
+ [Lutz Jaenicke]
+
+ *) Rework the configuration and shared library support for Tru64 Unix.
+ The configuration part makes use of modern compiler features and
+ still retains old compiler behavior for those that run older versions
+ of the OS. The shared library support part includes a variant that
+ uses the RPATH feature, and is available through the special
+ configuration target "alpha-cc-rpath", which will never be selected
+ automatically.
+ [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
+
+ *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
+ with the same message size as in ssl3_get_certificate_request().
+ Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
+ messages might inadvertently be reject as too long.
+ [Petr Lampa <lampa@fee.vutbr.cz>]
+
+ +) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
+ bug workarounds. Rollback attack detection is a security feature.
+ The problem will only arise on OpenSSL servers when TLSv1 is not
+ available (sslv3_server_method() or SSL_OP_NO_TLSv1).
+ Software authors not wanting to support TLSv1 will have special reasons
+ for their choice and can explicitly enable this option.
+ [Bodo Moeller, Lutz Jaenicke]
+
+ +) Rationalise EVP so it can be extended: don't include a union of
+ cipher/digest structures, add init/cleanup functions. This also reduces
+ the number of header dependencies.
+ [Ben Laurie]
+
+ +) Make DES key schedule conform to the usual scheme, as well as
+ correcting its structure. This means that calls to DES functions
+ now have to pass a pointer to a des_key_schedule instead of a
+ plain des_key_schedule (which was actually always a pointer
+ anyway).
+ [Ben Laurie]
+
+ *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
+ [Andy Polyakov]
+
+ *) Modified SSL library such that the verify_callback that has been set
+ specificly for an SSL object with SSL_set_verify() is actually being
+ used. Before the change, a verify_callback set with this function was
+ ignored and the verify_callback() set in the SSL_CTX at the time of
+ the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
+ to allow the necessary settings.
+ [Lutz Jaenicke]
+
+ +) Initial reduction of linker bloat: the use of some functions, such as
+ PEM causes large amounts of unused functions to be linked in due to
+ poor organisation. For example pem_all.c contains every PEM function
+ which has a knock on effect of linking in large amounts of (unused)
+ ASN1 code. Grouping together similar functions and splitting unrelated
+ functions prevents this.
+ [Steve Henson]
+
+ *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
+ explicitly to NULL, as at least on Solaris 8 this seems not always to be
+ done automatically (in contradiction to the requirements of the C
+ standard). This made problems when used from OpenSSH.
+ [Lutz Jaenicke]
+
+ *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
+ dh->length and always used
+
+ BN_rand_range(priv_key, dh->p).
+
+ BN_rand_range() is not necessary for Diffie-Hellman, and this
+ specific range makes Diffie-Hellman unnecessarily inefficient if
+ dh->length (recommended exponent length) is much smaller than the
+ length of dh->p. We could use BN_rand_range() if the order of
+ the subgroup was stored in the DH structure, but we only have
+ dh->length.
+
+ So switch back to
+
+ BN_rand(priv_key, l, ...)
+
+ where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
+ otherwise.
+ [Bodo Moeller]
+
+ *) In
+
+ RSA_eay_public_encrypt
+ RSA_eay_private_decrypt
+ RSA_eay_private_encrypt (signing)
+ RSA_eay_public_decrypt (signature verification)
+
+ (default implementations for RSA_public_encrypt,
+ RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
+ always reject numbers >= n.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
+ to synchronize access to 'locking_thread'. This is necessary on
+ systems where access to 'locking_thread' (an 'unsigned long'
+ variable) is not atomic.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
+ *before* setting the 'crypto_lock_rand' flag. The previous code had
+ a race condition if 0 is a valid thread ID.
+ [Travis Vitek <vitek@roguewave.com>]
+
+ +) Cleanup of EVP macros.
+ [Ben Laurie]
+
+ +) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
+ correct _ecb suffix.
+ [Ben Laurie]
+
+ +) Add initial OCSP responder support to ocsp application. The
+ revocation information is handled using the text based index
+ use by the ca application. The responder can either handle
+ requests generated internally, supplied in files (for example
+ via a CGI script) or using an internal minimal server.
+ [Steve Henson]
+
+ +) Add configuration choices to get zlib compression for TLS.
+ [Richard Levitte]
+
+ +) Changes to Kerberos SSL for RFC 2712 compliance:
+ 1. Implemented real KerberosWrapper, instead of just using
+ KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
+ 2. Implemented optional authenticator field of KerberosWrapper.
+
+ Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
+ and authenticator structs; see crypto/krb5/.
+
+ Generalized Kerberos calls to support multiple Kerberos libraries.
+ [Vern Staats <staatsvr@asc.hpc.mil>,
+ Jeffrey Altman <jaltman@columbia.edu>
+ via Richard Levitte]
+
+ +) Cause 'openssl speed' to use fully hard-coded DSA keys as it
+ already does with RSA. testdsa.h now has 'priv_key/pub_key'
+ values for each of the key sizes rather than having just
+ parameters (and 'speed' generating keys each time).
+ [Geoff Thorpe]
+
+ -) OpenSSL 0.9.6b released [9 July 2001]
+
+ *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
+ to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
+ Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
+ PRNG state recovery was possible based on the output of
+ one PRNG request appropriately sized to gain knowledge on
+ 'md' followed by enough consecutive 1-byte PRNG requests
+ to traverse all of 'state'.
+
+ 1. When updating 'md_local' (the current thread's copy of 'md')
+ during PRNG output generation, hash all of the previous
+ 'md_local' value, not just the half used for PRNG output.
+
+ 2. Make the number of bytes from 'state' included into the hash
+ independent from the number of PRNG bytes requested.
+
+ The first measure alone would be sufficient to avoid
+ Markku-Juhani's attack. (Actually it had never occurred
+ to me that the half of 'md_local' used for chaining was the
+ half from which PRNG output bytes were taken -- I had always
+ assumed that the secret half would be used.) The second
+ measure makes sure that additional data from 'state' is never
+ mixed into 'md_local' in small portions; this heuristically
+ further strengthens the PRNG.
+ [Bodo Moeller]
+
+ +) Speed up EVP routines.
+ Before:
+encrypt
+type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
+des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
+des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
+des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
+decrypt
+des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
+des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
+des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
+ After:
+encrypt
+des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
+decrypt
+des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
+ [Ben Laurie]
+
+ *) Fix crypto/bn/asm/mips3.s.
+ [Andy Polyakov]
+
+ *) When only the key is given to "enc", the IV is undefined. Print out
+ an error message in this case.
+ [Lutz Jaenicke]
+
+ +) Added the OS2-EMX target.
+ ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
+
+ +) Rewrite apps to use NCONF routines instead of the old CONF. New functions
+ to support NCONF routines in extension code. New function CONF_set_nconf()
+ to allow functions which take an NCONF to also handle the old LHASH
+ structure: this means that the old CONF compatible routines can be
+ retained (in particular wrt extensions) without having to duplicate the
+ code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
+ [Steve Henson]
+
+ *) Handle special case when X509_NAME is empty in X509 printing routines.
+ [Steve Henson]
+
+ *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
+ positive and less than q.
+ [Bodo Moeller]
+
+ +) Enhance the general user interface with mechanisms for inner control
+ and with possibilities to have yes/no kind of prompts.
+ [Richard Levitte]
+
+ +) Change all calls to low level digest routines in the library and
applications to use EVP. Add missing calls to HMAC_cleanup() and
don't assume HMAC_CTX can be copied using memcpy().
[Verdon Walker <VWalker@novell.com>, Steve Henson]
Change the key loaders to take a UI_METHOD instead of a callback
function pointer. NOTE: this breaks binary compatibility with earlier
versions of OpenSSL [engine].
- Addapt the nCipher code for these new conditions and add a card insertion
+ Adapt the nCipher code for these new conditions and add a card insertion
callback.
[Richard Levitte]
+) Enhance the general user interface with mechanisms to better support
dialog box interfaces, application-defined prompts, the possibility
to use defaults (for example default passwords from somewhere else)
- and interrupts/cancelations.
+ and interrupts/cancellations.
[Richard Levitte]
*) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
[Ulf Möller, Bodo Möller]
*) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
- RSA encryption was accidentily removed in s3_srvr.c in OpenSSL 0.9.5
+ RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
when fixing the server behaviour for backwards-compatible 'client
hello' messages. (Note that the attack is impractical against
SSL 3.0 and TLS 1.0 anyway because length and version checking
[Bodo Moeller]
+) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
- tidy up some unecessarily weird code in 'sk_new()').
+ tidy up some unnecessarily weird code in 'sk_new()').
[Geoff, reported by Diego Tartara <dtartara@novamens.com>]
+) Change the key loading routines for ENGINEs to use the same kind
const ASN1_ITEM *it = &ASN1_INTEGER_it;
wont compile. This is used by the any applications that need to
- delcare their own ASN1 modules. This was fixed by adding the option
+ declare their own ASN1 modules. This was fixed by adding the option
EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
needed for static libraries under Win32.
[Steve Henson]
a window system and the like.
[Richard Levitte]
+ *) Fix various bugs related to DSA S/MIME verification. Handle missing
+ parameters in DSA public key structures and return an error in the
+ DSA routines if parameters are absent.
+ [Steve Henson]
+
*) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
in the current directory if neither $RANDFILE nor $HOME was set.
RAND_file_name() in 0.9.6a returned NULL in this case. This has
ENGINE structure.
[Geoff]
- *) Fix various bugs related to DSA S/MIME verification. Handle missing
- parameters in DSA public key structures and return an error in the
- DSA routines if parameters are absent.
- [Steve Henson]
-
+) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
needs to match any other type at all we need to manually clear the
tag cache.
combination of a flag and a thread ID variable.
Otherwise while one thread is in ssleay_rand_bytes (which sets the
flag), *other* threads can enter ssleay_add_bytes without obeying
- the CRYPTO_LOCK_RAND lock (and may even illegaly release the lock
+ the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
that they do not hold after the first thread unsets add_do_not_lock).
[Bodo Moeller]
+) Implement binary inversion algorithm for BN_mod_inverse in addition
- to the algorithm using long divison. The binary algorithm can be
+ to the algorithm using long division. The binary algorithm can be
used only if the modulus is odd. On 32-bit systems, it is faster
only for relatively small moduli (roughly 20-30% for 128-bit moduli,
roughly 5-15% for 256-bit moduli), so we use it only for moduli
#define bar OPENSSL_GLOBAL_REF(bar)
The #defines are very important, and therefore so is including the
- header file everywere where the defined globals are used.
+ header file everywhere where the defined globals are used.
The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
- of ASN.1 items, but that structure is a bt different.
+ of ASN.1 items, but that structure is a bit different.
The largest change is in util/mkdef.pl which has been enhanced with
better and easier to understand logic to choose which symbols should
responses. OCSP responses are prepared in real time and may only
be a few seconds old. Simply checking that the current time lies
between thisUpdate and nextUpdate max reject otherwise valid responses
- caused by either OCSP responder or client clock innacuracy. Instead
+ caused by either OCSP responder or client clock inaccuracy. Instead
we allow thisUpdate and nextUpdate to fall within a certain period of
the current time. The age of the response can also optionally be
checked. Two new options -validity_period and -status_age added to
[Steve Henson]
+) If signature or public key algorithm is unrecognized print out its
- OID rather that just UNKOWN.
+ OID rather that just UNKNOWN.
[Steve Henson]
*) Avoid coredump with unsupported or invalid public keys by checking if
to use such a feature) has been added to "s_server".
[Geoff Thorpe, Lutz Jaenicke]
- +) Modify mkdef.pl to recognise and parse prprocessor conditionals
+ +) Modify mkdef.pl to recognise and parse preprocessor conditionals
of the form '#if defined(...) || defined(...) || ...' and
'#if !defined(...) && !defined(...) && ...'. This also avoids
the growing number of special cases it was previously handling.
*) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
was empty.
+ [Steve Henson]
[This change does not apply to 0.9.7.]
*) Use the cached encoding of an X509_NAME structure rather than
the clients preferred ciphersuites and rather use its own preferences.
Should help to work around M$ SGC (Server Gated Cryptography) bug in
Internet Explorer by ensuring unchanged hash method during stepup.
+ (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
[Lutz Jaenicke]
+) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
extract information from a certificate request. OCSP_response_create()
creates a response and optionally adds a basic response structure.
OCSP_basic_add1_status() adds a complete single response to a basic
- reponse and returns the OCSP_SINGLERESP structure just added (to allow
+ response and returns the OCSP_SINGLERESP structure just added (to allow
extensions to be included for example). OCSP_basic_add1_cert() adds a
certificate to a basic response and OCSP_basic_sign() signs a basic
response with various flags. New helper functions ASN1_TIME_check()
+) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
- structure from a certificate. X509_pubkey_digest() digests tha public_key
+ structure from a certificate. X509_pubkey_digest() digests the public_key
contents: this is used in various key identifiers.
[Steve Henson]
+) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
passed by the function are trusted implicitly. If any of them signed the
- reponse then it is assumed to be valid and is not verified.
+ response then it is assumed to be valid and is not verified.
[Steve Henson]
-) Make the CRL encoding routines work with empty SEQUENCE OF. The
identity, and test if they are actually available.
[Richard Levitte]
- +) Add support for shared libraries under Irix.
+ *) 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
+ *) Add configuration option to build on Linux on both big-endian and
little-endian MIPS.
[Ralf Baechle <ralf@uni-koblenz.de>]
+) Support threads on FreeBSD-elf in Configure.
[Richard Levitte]
- +) Add the possibility to create shared libraries on HP-UX
+ *) Add the possibility to create shared libraries on HP-UX
[Richard Levitte]
+) Fix for SHA1 assembly problem with MASM: it produces
default is static libraries only, and the OpenSSL programs
are always statically linked for now, but there are
preparations for dynamic linking in place.
- This has been tested on Linux and True64.
+ This has been tested on Linux and Tru64.
[Richard Levitte]
*) Randomness polling function for Win9x, as described in:
projects / openssl.git / blobdiff