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OPENSSL_IMPLEMENT_GLOBAL(double,bar);
To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
OPENSSL_DECLARE_GLOBAL(int,foo);
#define foo OPENSSL_GLOBAL_REF(foo)
OPENSSL_DECLARE_GLOBAL(double,bar);
#define bar OPENSSL_GLOBAL_REF(bar)
The #defines are very important, and therefore so is including the
The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
The largest change is in util/mkdef.pl which has been enhanced with
better and easier to understand logic to choose which symbols should
go into the Windows .def files as well as a number of fixes and code
cleanup (among others, algorithm keywords are now sorted
lexicographically to avoid constant rewrites).
[Richard Levitte]
*) In copy_email() check for >= 0 as a return value for
X509_NAME_get_index_by_NID() since 0 is a valid index.
[Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
+) In BN_div() keep a copy of the sign of 'num' before writing the
result to 'rm' because if rm==num the value will be overwritten
and produce the wrong result if 'num' is negative: this caused
problems with BN_mod() and BN_nnmod().
[Steve Henson]
+) Function OCSP_request_verify(). This checks the signature on an
OCSP request and verifies the signer certificate. The signer
certificate is just checked for a generic purpose and OCSP request
trust settings.
[Steve Henson]
+) Add OCSP_check_validity() function to check the validity of OCSP
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 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
ocsp utility.
[Steve Henson]
+) If signature or public key algorithm is unrecognized print out its
*) Avoid coredump with unsupported or invalid public keys by checking if
X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
PKCS7_verify() fails with non detached data.
[Steve Henson]
+) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
ID to be generated from the issuer certificate alone which can then be
passed to OCSP_id_issuer_cmp().
[Steve Henson]
+) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
ASN1 modules to export functions returning ASN1_ITEM pointers
instead of the ASN1_ITEM structures themselves. This adds several
new macros which allow the underlying ASN1 function/structure to
be accessed transparently. As a result code should not use ASN1_ITEM
references directly (such as &X509_it) but instead use the relevant
macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
use of the new ASN1 code on platforms where exporting structures
is problematical (for example in shared libraries) but exporting
functions returning pointers to structures is not.
[Steve Henson]
+) Add support for overriding the generation of SSL/TLS session IDs.
These callbacks can be registered either in an SSL_CTX or per SSL.
The purpose of this is to allow applications to control, if they wish,
the arbitrary values chosen for use as session IDs, particularly as it
can be useful for session caching in multiple-server environments. A
command-line switch for testing this (and any client code that wishes
to use such a feature) has been added to "s_server".
[Geoff Thorpe, Lutz Jaenicke]
+) 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.
[Richard Levitte]
*) Don't use getenv in library functions when run as setuid/setgid.
New function OPENSSL_issetugid().
[Ulf Moeller]
+) Make all configuration macros available for application by making
sure they are available in opensslconf.h, by giving them names starting
with "OPENSSL_" to avoid conflicts with other packages and by making
sure e_os2.h will cover all platform-specific cases together with
opensslconf.h.
Additionally, it is now possible to define configuration/platform-
specific names (called "system identities"). In the C code, these
are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
macro with the name beginning with "OPENSSL_SYS_", which is determined
from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
what is available.
[Richard Levitte]
+) New option -set_serial to 'req' and 'x509' this allows the serial
number to use to be specified on the command line. Previously self
signed certificates were hard coded with serial number 0 and the
CA options of 'x509' had to use a serial number in a file which was
auto incremented.
[Steve Henson]
*) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
due to incorrect handling of multi-threading:
1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3. Count how many times MemCheck_off() has been called so that
nested use can be treated correctly. This also avoids
inband-signalling in the previous code (which relied on the
assumption that thread ID 0 is impossible).
[Bodo Moeller]
+) New options to 'ca' utility to support V2 CRL entry extensions.
Currently CRL reason, invalidity date and hold instruction are
supported. Add new CRL extensions to V3 code and some new objects.
[Steve Henson]
*) Add "-rand" option also to s_client and s_server.
[Lutz Jaenicke]
+) New function EVP_CIPHER_CTX_set_padding() this is used to
disable standard block padding (aka PKCS#5 padding) in the EVP
API, which was previously mandatory. This means that the data is
not padded in any way and so the total length much be a multiple
of the block size, otherwise an error occurs.
[Steve Henson]
+) Initial (incomplete) OCSP SSL support.
*) Fix CPU detection on Irix 6.x.
[Kurt Hockenbury <khockenb@stevens-tech.edu> and
"Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
+) New function OCSP_parse_url(). This splits up a URL into its host,
port and path components: primarily to parse OCSP URLs. New -url
option to ocsp utility.
[Steve Henson]
+) New nonce behavior. The return value of OCSP_check_nonce() now
reflects the various checks performed. Applications can decide
whether to tolerate certain situations such as an absent nonce
in a response when one was present in a request: the ocsp application
just prints out a warning. New function OCSP_add1_basic_nonce()
this is to allow responders to include a nonce in a response even if
the request is nonce-less.
[Steve Henson]
*) 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
copying it. This is apparently the reason for the libsafe "errors"
but the code is actually correct.
[Steve Henson]
+) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
skipped when using openssl x509 multiple times on a single input file,
e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
[Bodo Moeller]
+) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
set string type: to handle setting ASN1_TIME structures. Fix ca
utility to correctly initialize revocation date of CRLs.
[Steve Henson]
+) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
Lutz Jänicke
committed
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 Jänicke
committed
[Lutz Jaenicke]
+) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
to aes and add a new 'exist' option to print out symbols that don't
appear to exist.
[Steve Henson]
+) Additional options to ocsp utility to allow flags to be set and
additional certificates supplied.
[Steve Henson]
+) Add the option -VAfile to 'openssl ocsp', so the user can give the
OCSP client a number of certificate to only verify the response
signature against.
[Richard Levitte]
*) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
Bleichenbacher's DSA attack.
Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
to be set and top=0 forces the highest bit to be set; top=-1 is new
and leaves the highest bit random.
[Ulf Moeller, Bodo Moeller]
+) Update Rijndael code to version 3.0 and change EVP AES ciphers to
handle the new API. Currently only ECB, CBC modes supported. Add new
AES OIDs. Add TLS AES ciphersuites as described in the "AES Ciphersuites
for TLS" draft-ietf-tls-ciphersuite-03.txt.
[Ben Laurie, Steve Henson]
*) In the NCONF_...-based implementations for CONF_... queries
(crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
a temporary CONF structure with the data component set to NULL
(which gives segmentation faults in lh_retrieve).
Instead, use NULL for the CONF pointer in CONF_get_string and
CONF_get_number (which may use environment variables) and directly
return NULL from CONF_get_section.
[Bodo Moeller]
*) Fix potential buffer overrun for EBCDIC.
[Ulf Moeller]
+) New function OCSP_copy_nonce() to copy nonce value (if present) from
request to response.
[Steve Henson]
+) Functions for OCSP responders. OCSP_request_onereq_count(),
OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
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
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()
(checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
(converts ASN1_TIME to GeneralizedTime).
[Steve Henson]
+) 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 the public_key
contents: this is used in various key identifiers.
[Steve Henson]
*) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
keyUsage if basicConstraints absent for a CA.
[Steve Henson]
*) Make SMIME_write_PKCS7() write mail header values with a format that
is more generally accepted (no spaces before the semicolon), since
some programs can't parse those values properly otherwise. Also make
sure BIO's that break lines after each write do not create invalid
headers.
[Richard Levitte]
+) Make sk_sort() tolerate a NULL argument.
[Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
+) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
passed by the function are trusted implicitly. If any of them signed the
[Steve Henson]
-) Make the CRL encoding routines work with empty SEQUENCE OF. The
macros previously used would not encode an empty SEQUENCE OF
and break the signature.
[Steve Henson]
[This change does not apply to 0.9.7.]
*) Zero the premaster secret after deriving the master secret in
DH ciphersuites.
[Steve Henson]
+) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
to data. This was previously part of the PKCS7 ASN1 code. This
was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
[Steve Henson, reported by Kenneth R. Robinette
<support@securenetterm.com>]
+) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
routines: without these tracing memory leaks is very painful.
Fix leaks in PKCS12 and PKCS7 routines.
[Steve Henson]
*) Add some EVP_add_digest_alias registrations (as found in
OpenSSL_add_all_digests()) to SSL_library_init()
aka OpenSSL_add_ssl_algorithms(). This provides improved
compatibility with peers using X.509 certificates
with unconventional AlgorithmIdentifier OIDs.
[Bodo Moeller]
*) Fix for Irix with NO_ASM.
["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
*) ./config script fixes.
[Ulf Moeller, Richard Levitte]
+) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
effectively meant GeneralizedTime would never be used. Now it
is initialised to -1 but X509_time_adj() now has to check the value
and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
[Steve Henson, reported by Kenneth R. Robinette
<support@securenetterm.com>]
+) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
result in a zero length in the ASN1_INTEGER structure which was
not consistent with the structure when d2i_ASN1_INTEGER() was used
and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
where it did not print out a minus for negative ASN1_INTEGER.
[Steve Henson]
*) Fix 'openssl passwd -1'.
[Bodo Moeller]
+) Add summary printout to ocsp utility. The various functions which
convert status values to strings have been renamed to:
OCSP_response_status_str(), OCSP_cert_status_str() and
OCSP_crl_reason_str() and are no longer static. New options
to verify nonce values and to disable verification. OCSP response
printout format cleaned up.
[Steve Henson]
+) Add additional OCSP certificate checks. These are those specified
in RFC2560. This consists of two separate checks: the CA of the
certificate being checked must either be the OCSP signer certificate
or the issuer of the OCSP signer certificate. In the latter case the
OCSP signer certificate must contain the OCSP signing extended key
usage. This check is performed by attempting to match the OCSP
signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
in the OCSP_CERTID structures of the response.
[Steve Henson]
+) Initial OCSP certificate verification added to OCSP_basic_verify()
and related routines. This uses the standard OpenSSL certificate
verify routines to perform initial checks (just CA validity) and
to obtain the certificate chain. Then additional checks will be
performed on the chain. Currently the root CA is checked to see
if it is explicitly trusted for OCSP signing. This is used to set
a root CA as a global signing root: that is any certificate that
chains to that CA is an acceptable OCSP signing certificate.
[Steve Henson]
+) New '-extfile ...' option to 'openssl ca' for reading X.509v3
extensions from a separate configuration file.
As when reading extensions from the main configuration file,
the '-extensions ...' option may be used for specifying the
section to use.
[Massimiliano Pala <madwolf@comune.modena.it>]
*) Change PKCS12_key_gen_asc() so it can cope with non null
terminated strings whose length is passed in the passlen
parameter, for example from PEM callbacks. This was done
by adding an extra length parameter to asc2uni().
[Steve Henson, reported by <oddissey@samsung.co.kr>]
+) New OCSP utility. Allows OCSP requests to be generated or
read. The request can be sent to a responder and the output
parsed, outputed or printed in text form. Not complete yet:
still needs to check the OCSP response validity.
[Steve Henson]
+) New subcommands for 'openssl ca':
'openssl ca -status <serial>' prints the status of the cert with
the given serial number (according to the index file).
'openssl ca -updatedb' updates the expiry status of certificates
in the index file.
[Massimiliano Pala <madwolf@comune.modena.it>]
+) New '-newreq-nodes' command option to CA.pl. This is like
'-newreq', but calls 'openssl req' with the '-nodes' option
so that the resulting key is not encrypted.
[Damien Miller <djm@mindrot.org>]
+) New configuration for the GNU Hurd.
[Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
+) Initial code to implement OCSP basic response verify. This
is currently incomplete. Currently just finds the signer's
certificate and verifies the signature on the response.
[Steve Henson]
+) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
value of OPENSSLDIR. This is available via the new '-d' option
to 'openssl version', and is also included in 'openssl version -a'.
[Bodo Moeller]
*) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
call failed, free the DSA structure.
[Bodo Moeller]
+) Allowing defining memory allocation callbacks that will be given
file name and line number information in additional arguments
(a const char* and an int). The basic functionality remains, as
well as the original possibility to just replace malloc(),
realloc() and free() by functions that do not know about these
additional arguments. To register and find out the current
settings for extended allocation functions, the following
functions are provided:
CRYPTO_set_mem_ex_functions
CRYPTO_set_locked_mem_ex_functions
CRYPTO_get_mem_ex_functions
CRYPTO_get_locked_mem_ex_functions
These work the same way as CRYPTO_set_mem_functions and friends.
CRYPTO_get_[locked_]mem_functions now writes 0 where such an
extended allocation function is enabled.
Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
a conventional allocation function is enabled.
[Richard Levitte, Bodo Moeller]
*) Fix to uni2asc() to cope with zero length Unicode strings.
These are present in some PKCS#12 files.
[Steve Henson]
+) Finish off removing the remaining LHASH function pointer casts.
There should no longer be any prototype-casting required when using
the LHASH abstraction, and any casts that remain are "bugs". See
the callback types and macros at the head of lhash.h for details
(and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
[Geoff Thorpe]
+) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
If /dev/[u]random devices are not available or do not return enough
entropy, EGD style sockets (served by EGD or PRNGD) will automatically
be queried.
The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
/etc/entropy will be queried once each in this sequence, quering stops
when enough entropy was collected without querying more sockets.
[Lutz Jaenicke]
+) Change the Unix RAND_poll() variant to be able to poll several
Richard Levitte
committed
random devices, as specified by DEVRANDOM, until a sufficient amount
of data has been collected. We spend at most 10 ms on each file
(select timeout) and read in non-blocking mode. DEVRANDOM now
defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
(previously it was just the string "/dev/urandom"), so on typical
platforms the 10 ms delay will never occur.
Also separate out the Unix variant to its own file, rand_unix.c.
For VMS, there's a currently-empty rand_vms.c.
[Richard Levitte]
+) Move OCSP client related routines to ocsp_cl.c. These
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provide utility functions which an application needing
to issue a request to an OCSP responder and analyse the
response will typically need: as opposed to those which an
OCSP responder itself would need which will be added later.
OCSP_request_sign() signs an OCSP request with an API similar
to PKCS7_sign(). OCSP_response_status() returns status of OCSP
response. OCSP_response_get1_basic() extracts basic response
from response. OCSP_resp_find_status(): finds and extracts status
information from an OCSP_CERTID structure (which will be created
when the request structure is built). These are built from lower
level functions which work on OCSP_SINGLERESP structures but
wont normally be used unless the application wishes to examine
extensions in the OCSP response for example.
Replace nonce routines with a pair of functions.
OCSP_request_add1_nonce() adds a nonce value and optionally
generates a random value. OCSP_check_nonce() checks the
validity of the nonce in an OCSP response.
[Steve Henson]
+) Change function OCSP_request_add() to OCSP_request_add0_id().
This doesn't copy the supplied OCSP_CERTID and avoids the
need to free up the newly created id. Change return type
to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
This can then be used to add extensions to the request.
Deleted OCSP_request_new(), since most of its functionality
is now in OCSP_REQUEST_new() (and the case insensitive name
clash) apart from the ability to set the request name which
will be added elsewhere.
[Steve Henson]
+) Update OCSP API. Remove obsolete extensions argument from
various functions. Extensions are now handled using the new
OCSP extension code. New simple OCSP HTTP function which
can be used to send requests and parse the response.
[Steve Henson]
+) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
uses the special reorder version of SET OF to sort the attributes
and reorder them to match the encoded order. This resolves a long
standing problem: a verify on a PKCS7 structure just after signing
it used to fail because the attribute order did not match the
encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
it uses the received order. This is necessary to tolerate some broken
software that does not order SET OF. This is handled by encoding
as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
to produce the required SET OF.
[Steve Henson]
+) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
files to get correct declarations of the ASN.1 item variables.
[Richard Levitte]
+) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
ASN1_ITEM and no wrapper functions.
[Steve Henson]
+) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
replace the old function pointer based I/O routines. Change most of
the *_d2i_bio() and *_d2i_fp() functions to use these.
[Steve Henson]
+) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
lines, recognice more "algorithms" that can be deselected, and make
it complain about algorithm deselection that isn't recognised.
[Richard Levitte]
+) New ASN1 functions to handle dup, sign, verify, digest, pack and
unpack operations in terms of ASN1_ITEM. Modify existing wrappers
to use new functions. Add NO_ASN1_OLD which can be set to remove
some old style ASN1 functions: this can be used to determine if old
code will still work when these eventually go away.
[Steve Henson]
+) New extension functions for OCSP structures, these follow the
same conventions as certificates and CRLs.
[Steve Henson]
+) New function X509V3_add1_i2d(). This automatically encodes and
adds an extension. Its behaviour can be customised with various
flags to append, replace or delete. Various wrappers added for
certifcates and CRLs.
[Steve Henson]
+) Fix to avoid calling the underlying ASN1 print routine when
an extension cannot be parsed. Correct a typo in the
OCSP_SERVICELOC extension. Tidy up print OCSP format.
[Steve Henson]
*) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
when writing a 32767 byte record.
[Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
*) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
(RSA objects have a reference count access to which is protected
by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
so they are meant to be shared between threads.)
[Bodo Moeller, Geoff Thorpe; original patch submitted by
"Reddie, Steven" <Steven.Reddie@ca.com>]
+) Make mkdef.pl parse some of the ASN1 macros and add apropriate
entries for variables.
*) Fix a deadlock in CRYPTO_mem_leaks().
[Bodo Moeller]
+) Add functionality to apps/openssl.c for detecting locking
problems: As the program is single-threaded, all we have
to do is register a locking callback using an array for
storing which locks are currently held by the program.
[Bodo Moeller]
+) Use a lock around the call to CRYPTO_get_ex_new_index() in
SSL_get_ex_data_X509_STORE_idx(), which is used in
ssl_verify_cert_chain() and thus can be called at any time
during TLS/SSL handshakes so that thread-safety is essential.
Unfortunately, the ex_data design is not at all suited
for multi-threaded use, so it probably should be abolished.
[Bodo Moeller]
+) Added Broadcom "ubsec" ENGINE to OpenSSL.
[Broadcom, tweaked and integrated by Geoff Thorpe]
+) Move common extension printing code to new function
Dr. Stephen Henson
committed
X509V3_print_extensions(). Reorganise OCSP print routines and
implement some needed OCSP ASN1 functions. Add OCSP extensions.
Dr. Stephen Henson
committed
[Steve Henson]
+) New function X509_signature_print() to remove duplication in some
print routines.
[Steve Henson]
+) Add a special meaning when SET OF and SEQUENCE OF flags are both
set (this was treated exactly the same as SET OF previously). This
is used to reorder the STACK representing the structure to match the
encoding. This will be used to get round a problem where a PKCS7
structure which was signed could not be verified because the STACK
order did not reflect the encoded order.
[Steve Henson]
+) Reimplement the OCSP ASN1 module using the new code.
+) Update the X509V3 code to permit the use of an ASN1_ITEM structure
for its ASN1 operations. The old style function pointers still exist
for now but they will eventually go away.
[Steve Henson]
+) Merge in replacement ASN1 code from the ASN1 branch. This almost
completely replaces the old ASN1 functionality with a table driven
encoder and decoder which interprets an ASN1_ITEM structure describing
the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
largely maintained. Almost all of the old asn1_mac.h macro based ASN1
has also been converted to the new form.
+) Change BN_mod_exp_recp so that negative moduli are tolerated
(the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
so that BN_mod_exp_mont and BN_mod_exp_mont_word work
for negative moduli.
[Bodo Moeller]
+) Fix BN_uadd and BN_usub: Always return non-negative results instead
of not touching the result's sign bit.
[Bodo Moeller]
+) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
+) 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
[Veers Staats <staatsvr@asc.hpc.mil>,
Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
*) BN_rshift bugfix for n == 0.
[Bodo Moeller]
+) Reformat the FAQ so the different questions and answers can be divided
[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
(using the probabilistic Tonelli-Shanks algorithm unless
p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
be handled deterministically).
[Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
*) Add a 'bctest' script that checks for some known 'bc' bugs
so that 'make test' does not abort just because 'bc' is broken.
[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].)
*) Fix ssl3_pending: If the record in s->s3->rrec is not of type
SSL3_RT_APPLICATION_DATA, return 0.
Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
[Bodo Moeller]
*) Fix SSL_peek:
Both ssl2_peek and ssl3_peek, which were totally broken in earlier
releases, have been re-implemented by renaming the previous
implementations of ssl2_read and ssl3_read to ssl2_read_internal
and ssl3_read_internal, respectively, and adding 'peek' parameters
to them. The new ssl[23]_{read,peek} functions are calls to
ssl[23]_read_internal with the 'peek' flag set appropriately.
A 'peek' parameter has also been added to ssl3_read_bytes, which
does the actual work for ssl3_read_internal.
+) New function BN_kronecker.
+) 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.
+) 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_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'.
+) 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.
+) Add VMS support for the Rijndael code.
[Richard Levitte]
+) Added untested support for Nuron crypto accelerator.
[Ben Laurie]
+) Add support for external cryptographic devices. This code was
previously distributed separately as the "engine" branch.
[Geoff Thorpe, Richard Levitte]
+) Rework the filename-translation in the DSO code. It is now possible to
have far greater control over how a "name" is turned into a filename
depending on the operating environment and any oddities about the
different shared library filenames on each system.
[Geoff Thorpe]
+) Support threads on FreeBSD-elf in Configure.
+) Add the possibility to create shared libraries on HP-UX
[Richard Levitte]
+) Fix for SHA1 assembly problem with MASM: it produces
warnings about corrupt line number information when assembling
with debugging information. This is caused by the overlapping
of two sections.
[Bernd Matthes <mainbug@celocom.de>, Steve Henson]
+) NCONF changes.
NCONF_get_number() has no error checking at all. As a replacement,
NCONF_get_number_e() is defined (_e for "error checking") and is
promoted strongly. The old NCONF_get_number is kept around for
binary backward compatibility.
Make it possible for methods to load from something other than a BIO,
by providing a function pointer that is given a name instead of a BIO.
For example, this could be used to load configuration data from an
LDAP server.
[Richard Levitte]
*) Fix typo in get_cert_by_subject() in by_dir.c
[Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
*) Rework the system to generate shared libraries:
- Make note of the expected extension for the shared libraries and
if there is a need for symbolic links from for example libcrypto.so.0
to libcrypto.so.0.9.7. There is extended info in Configure for
that.
- Make as few rebuilds of the shared libraries as possible.
- Still avoid linking the OpenSSL programs with the shared libraries.
- When installing, install the shared libraries separately from the
static ones.
[Richard Levitte]
+) Fix for non blocking accept BIOs. Added new I/O special reason
BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
with non blocking I/O was not possible because no retry code was
implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
this case.
[Steve Henson]
+) Added the beginnings of Rijndael support.
[Ben Laurie]
+) Fix for bug in DirectoryString mask setting. Add support for
X509_NAME_print_ex() in 'req' and X509_print_ex() function
to allow certificate printing to more controllable, additional
'certopt' option to 'x509' to allow new printing options to be
set.
+) Clean old EAY MD5 hack from e_os.h.
*) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
and not in SSL_clear because the latter is also used by the
accept/connect functions; previously, the settings made by
SSL_set_read_ahead would be lost during the handshake.
[Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
*) Correct util/mkdef.pl to be selective about disabled algorithms.
Previously, it would create entries for disableed algorithms no
matter what.
[Richard Levitte]
*) Added several new manual pages for SSL_* function.
[Lutz Jaenicke]
Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
*) In ssl23_get_client_hello, generate an error message when faced
with an initial SSL 3.0/TLS record that is too small to contain the
first two bytes of the ClientHello message, i.e. client_version.
(Note that this is a pathologic case that probably has never happened
in real life.) The previous approach was to use the version number
should not depend on that one because it is not authenticated
by the Finished messages.
[Bodo Moeller]
*) More robust randomness gathering functions for Windows.
[Jeffrey Altman <jaltman@columbia.edu>]
*) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
not set then we don't setup the error code for issuer check errors
to avoid possibly overwriting other errors which the callback does
handle. If an application does set the flag then we assume it knows
what it is doing and can handle the new informational codes
appropriately.
[Steve Henson]
*) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
a general "ANY" type, as such it should be able to decode anything
including tagged types. However it didn't check the class so it would
wrongly interpret tagged types in the same way as their universal
counterpart and unknown types were just rejected. Changed so that the
tagged and unknown types are handled in the same way as a SEQUENCE:
that is the encoding is stored intact. There is also a new type
"V_ASN1_OTHER" which is used when the class is not universal, in this
case we have no idea what the actual type is so we just lump them all
together.
[Steve Henson]
*) On VMS, stdout may very well lead to a file that is written to
in a record-oriented fashion. That means that every write() will
write a separate record, which will be read separately by the