Newer
Older
which was free.
[Steve Henson]
*) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
instead of RAND_bytes for encryption IVs and salts.
[Bodo Moeller]
*) Include RAND_status() into RAND_METHOD instead of implementing
it only for md_rand.c Otherwise replacing the PRNG by calling
RAND_set_rand_method would be impossible.
[Bodo Moeller]
*) Don't let DSA_generate_key() enter an infinite loop if the random
number generation fails.
[Bodo Moeller]
*) New 'rand' application for creating pseudo-random output.
[Bodo Moeller]
*) Added configuration support for Linux/IA64
[Rolf Haberrecker <rolf@suse.de>]
*) Shared library support for HPUX (in shlib/).
[Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
*) Shared library support for Solaris gcc.
[Lutz Behnke <behnke@trustcenter.de>]
*) PKCS7_encrypt() was adding text MIME headers twice because they
were added manually and by SMIME_crlf_copy().
[Steve Henson]
*) In bntest.c don't call BN_rand with zero bits argument.
[Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
*) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
case was implemented. This caused BN_div_recp() to fail occasionally.
*) Add an optional second argument to the set_label() in the perl
assembly language builder. If this argument exists and is set
to 1 it signals that the assembler should use a symbol whose
scope is the entire file, not just the current function. This
is needed with MASM which uses the format label:: for this scope.
[Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
*) Change the ASN1 types so they are typedefs by default. Before
almost all types were #define'd to ASN1_STRING which was causing
STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
for example.
[Steve Henson]
*) Change names of new functions to the new get1/get0 naming
convention: After 'get1', the caller owns a reference count
and has to call ..._free; 'get0' returns a pointer to some
data structure without incrementing reference counters.
(Some of the existing 'get' functions increment a reference
counter, some don't.)
Similarly, 'set1' and 'add1' functions increase reference
counters or duplicate objects.
*) Allow for the possibility of temp RSA key generation failure:
the code used to assume it always worked and crashed on failure.
[Steve Henson]
*) Fix potential buffer overrun problem in BIO_printf().
[Ulf Möller, using public domain code by Patrick Powell; problem
pointed out by David Sacerdote <das33@cornell.edu>]
*) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
RAND_egd() and RAND_status(). In the command line application,
the EGD socket can be specified like a seed file using RANDFILE
or -rand.
*) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
Some CAs (e.g. Verisign) distribute certificates in this form.
[Steve Henson]
*) Remove the SSL_ALLOW_ADH compile option and set the default cipher
list to exclude them. This means that no special compilation option
is needed to use anonymous DH: it just needs to be included in the
cipher list.
[Steve Henson]
*) Change the EVP_MD_CTX_type macro so its meaning consistent with
EVP_MD_type. The old functionality is available in a new macro called
EVP_MD_md(). Change code that uses it and update docs.
[Steve Henson]
*) ..._ctrl functions now have corresponding ..._callback_ctrl functions
where the 'void *' argument is replaced by a function pointer argument.
Previously 'void *' was abused to point to functions, which works on
many platforms, but is not correct. As these functions are usually
called by macros defined in OpenSSL header files, most source code
should work without changes.
*) <openssl/opensslconf.h> (which is created by Configure) now contains
sections with information on -D... compiler switches used for
compiling the library so that applications can see them. To enable
one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
must be defined. E.g.,
#define OPENSSL_ALGORITHM_DEFINES
#include <openssl/opensslconf.h>
defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
[Richard Levitte, Ulf and Bodo Möller]
*) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
record layer.
[Bodo Moeller]
*) Change the 'other' type in certificate aux info to a STACK_OF
X509_ALGOR. Although not an AlgorithmIdentifier as such it has
the required ASN1 format: arbitrary types determined by an OID.
[Steve Henson]
*) Add some PEM_write_X509_REQ_NEW() functions and a command line
argument to 'req'. This is not because the function is newer or
better than others it just uses the work 'NEW' in the certificate
request header lines. Some software needs this.
[Steve Henson]
*) Reorganise password command line arguments: now passwords can be
obtained from various sources. Delete the PEM_cb function and make
it the default behaviour: i.e. if the callback is NULL and the
usrdata argument is not NULL interpret it as a null terminated pass
phrase. If usrdata and the callback are NULL then the pass phrase
is prompted for as usual.
[Steve Henson]
*) Add support for the Compaq Atalla crypto accelerator. If it is installed,
the support is automatically enabled. The resulting binaries will
autodetect the card and use it if present.
[Ben Laurie and Compaq Inc.]
*) Work around for Netscape hang bug. This sends certificate request
and server done in one record. Since this is perfectly legal in the
SSL/TLS protocol it isn't a "bug" option and is on by default. See
the bugs/SSLv3 entry for more info.
[Steve Henson]
*) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
[Andy Polyakov]
*) Add -rand argument to smime and pkcs12 applications and read/write
of seed file.
[Steve Henson]
*) Add command line password options to the remaining applications.
[Steve Henson]
*) Bug fix for BN_div_recp() for numerators with an even number of
bits.
*) More tests in bntest.c, and changed test_bn output.
*) ./config recognizes MacOS X now.
[Andy Polyakov]
*) Bug fix for BN_div() when the first words of num and divsor are
equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
*) Add support for various broken PKCS#8 formats, and command line
options to produce them.
[Steve Henson]
*) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
get temporary BIGNUMs from a BN_CTX.
*) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
for p == 0.
*) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
include a #define from the old name to the new. The original intent
was that statically linked binaries could for example just call
SSLeay_add_all_ciphers() to just add ciphers to the table and not
link with digests. This never worked because SSLeay_add_all_digests()
and SSLeay_add_all_ciphers() were in the same source file so calling
one would link with the other. They are now in separate source files.
[Steve Henson]
*) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
[Steve Henson]
*) Use a less unusual form of the Miller-Rabin primality test (it used
a binary algorithm for exponentiation integrated into the Miller-Rabin
loop, our standard modexp algorithms are faster).
[Bodo Moeller]
*) Support for the EBCDIC character set completed.
*) Source code cleanups: use const where appropriate, eliminate casts,
use void * instead of char * in lhash.
*) Bugfix: ssl3_send_server_key_exchange was not restartable
(the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
this the server could overwrite ephemeral keys that the client
has already seen).
[Bodo Moeller]
*) Turn DSA_is_prime into a macro that calls BN_is_prime,
using 50 iterations of the Rabin-Miller test.
DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
iterations of the Rabin-Miller test as required by the appendix
to FIPS PUB 186[-1]) instead of DSA_is_prime.
As BN_is_prime_fasttest includes trial division, DSA parameter
generation becomes much faster.
This implies a change for the callback functions in DSA_is_prime
and DSA_generate_parameters: The callback function is called once
for each positive witness in the Rabin-Miller test, not just
occasionally in the inner loop; and the parameters to the
callback function now provide an iteration count for the outer
loop rather than for the current invocation of the inner loop.
DSA_generate_parameters additionally can call the callback
function with an 'iteration count' of -1, meaning that a
candidate has passed the trial division test (when q is generated
from an application-provided seed, trial division is skipped).
[Bodo Moeller]
*) New function BN_is_prime_fasttest that optionally does trial
division before starting the Rabin-Miller test and has
an additional BN_CTX * argument (whereas BN_is_prime always
has to allocate at least one BN_CTX).
'callback(1, -1, cb_arg)' is called when a number has passed the
trial division stage.
[Bodo Moeller]
*) Fix for bug in CRL encoding. The validity dates weren't being handled
as ASN1_TIME.
[Steve Henson]
*) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
[Steve Henson]
*) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
bignum version of BN_from_montgomery() with the working code from
SSLeay 0.9.0 (the word based version is faster anyway), and clean up
the comments.
*) Avoid a race condition in s2_clnt.c (function get_server_hello) that
made it impossible to use the same SSL_SESSION data structure in
SSL2 clients in multiple threads.
[Bodo Moeller]
*) The return value of RAND_load_file() no longer counts bytes obtained
by stat(). RAND_load_file(..., -1) is new and uses the complete file
to seed the PRNG (previously an explicit byte count was required).
*) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
used (char *) instead of (void *) and had casts all over the place.
[Steve Henson]
*) Make BN_generate_prime() return NULL on error if ret!=NULL.
*) Retain source code compatibility for BN_prime_checks macro:
BN_is_prime(..., BN_prime_checks, ...) now uses
BN_prime_checks_for_size to determine the appropriate number of
Rabin-Miller iterations.
*) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
DH_CHECK_P_NOT_SAFE_PRIME.
(Check if this is true? OpenPGP calls them "strong".)
*) Merge the functionality of "dh" and "gendh" programs into a new program
"dhparam". The old programs are retained for now but will handle DH keys
(instead of parameters) in future.
[Steve Henson]
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*) Make the ciphers, s_server and s_client programs check the return values
when a new cipher list is set.
[Steve Henson]
*) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
ciphers. Before when the 56bit ciphers were enabled the sorting was
wrong.
The syntax for the cipher sorting has been extended to support sorting by
cipher-strength (using the strength_bits hard coded in the tables).
The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
Fix a bug in the cipher-command parser: when supplying a cipher command
string with an "undefined" symbol (neither command nor alphanumeric
[A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
an error is flagged.
Due to the strength-sorting extension, the code of the
ssl_create_cipher_list() function was completely rearranged. I hope that
the readability was also increased :-)
[Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
*) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
for the first serial number and places 2 in the serial number file. This
avoids problems when the root CA is created with serial number zero and
the first user certificate has the same issuer name and serial number
as the root CA.
[Steve Henson]
*) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
the new code. Add documentation for this stuff.
[Steve Henson]
*) Changes to X509_ATTRIBUTE utilities. These have been renamed from
X509_*() to X509at_*() on the grounds that they don't handle X509
structures and behave in an analogous way to the X509v3 functions:
they shouldn't be called directly but wrapper functions should be used
instead.
So we also now have some wrapper functions that call the X509at functions
when passed certificate requests. (TO DO: similar things can be done with
PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
things. Some of these need some d2i or i2d and print functionality
because they handle more complex structures.)
[Steve Henson]
*) Add missing #ifndefs that caused missing symbols when building libssl
as a shared library without RSA. Use #ifndef NO_SSL2 instead of
NO_RSA in ssl/s2*.c.
[Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
*) Precautions against using the PRNG uninitialized: RAND_bytes() now
has a return value which indicates the quality of the random data
(1 = ok, 0 = not seeded). Also an error is recorded on the thread's
error queue. New function RAND_pseudo_bytes() generates output that is
guaranteed to be unique but not unpredictable. RAND_add is like
RAND_seed, but takes an extra argument for an entropy estimate
(RAND_seed always assumes full entropy).
*) Do more iterations of Rabin-Miller probable prime test (specifically,
3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
instead of only 2 for all lengths; see BN_prime_checks_for_size definition
in crypto/bn/bn_prime.c for the complete table). This guarantees a
false-positive rate of at most 2^-80 for random input.
*) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
*) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
in the 0.9.5 release), this returns the chain
Dr. Stephen Henson
committed
from an X509_CTX structure with a dup of the stack and all
the X509 reference counts upped: so the stack will exist
after X509_CTX_cleanup() has been called. Modify pkcs12.c
to use this.
Also make SSL_SESSION_print() print out the verify return
code.
[Steve Henson]
*) Add manpage for the pkcs12 command. Also change the default
behaviour so MAC iteration counts are used unless the new
-nomaciter option is used. This improves file security and
only older versions of MSIE (4.0 for example) need it.
[Steve Henson]
*) Honor the no-xxx Configure options when creating .DEF files.
*) Add PKCS#10 attributes to field table: challengePassword,
unstructuredName and unstructuredAddress. These are taken from
draft PKCS#9 v2.0 but are compatible with v1.2 provided no
international characters are used.
More changes to X509_ATTRIBUTE code: allow the setting of types
based on strings. Remove the 'loc' parameter when adding
attributes because these will be a SET OF encoding which is sorted
in ASN1 order.
[Steve Henson]
*) Initial changes to the 'req' utility to allow request generation
automation. This will allow an application to just generate a template
file containing all the field values and have req construct the
request.
Initial support for X509_ATTRIBUTE handling. Stacks of these are
used all over the place including certificate requests and PKCS#7
structures. They are currently handled manually where necessary with
some primitive wrappers for PKCS#7. The new functions behave in a
manner analogous to the X509 extension functions: they allow
attributes to be looked up by NID and added.
Later something similar to the X509V3 code would be desirable to
automatically handle the encoding, decoding and printing of the
more complex types. The string types like challengePassword can
be handled by the string table functions.
Also modified the multi byte string table handling. Now there is
a 'global mask' which masks out certain types. The table itself
can use the flag STABLE_NO_MASK to ignore the mask setting: this
is useful when for example there is only one permissible type
(as in countryName) and using the mask might result in no valid
types at all.
[Steve Henson]
*) Clean up 'Finished' handling, and add functions SSL_get_finished and
SSL_get_peer_finished to allow applications to obtain the latest
Finished messages sent to the peer or expected from the peer,
respectively. (SSL_get_peer_finished is usually the Finished message
actually received from the peer, otherwise the protocol will be aborted.)
As the Finished message are message digests of the complete handshake
(with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
be used for external authentication procedures when the authentication
provided by SSL/TLS is not desired or is not enough.
[Bodo Moeller]
*) Enhanced support for Alpha Linux is added. Now ./config checks if
the host supports BWX extension and if Compaq C is present on the
$PATH. Just exploiting of the BWX extension results in 20-30%
performance kick for some algorithms, e.g. DES and RC4 to mention
a couple. Compaq C in turn generates ~20% faster code for MD5 and
SHA1.
[Andy Polyakov]
*) Add support for MS "fast SGC". This is arguably a violation of the
SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
weak crypto and after checking the certificate is SGC a second one
with strong crypto. MS SGC stops the first handshake after receiving
the server certificate message and sends a second client hello. Since
a server will typically do all the time consuming operations before
expecting any further messages from the client (server key exchange
is the most expensive) there is little difference between the two.
To get OpenSSL to support MS SGC we have to permit a second client
hello message after we have sent server done. In addition we have to
reset the MAC if we do get this second client hello.
*) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
if a DER encoded private key is RSA or DSA traditional format. Changed
d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
format DER encoded private key. Newer code should use PKCS#8 format which
has the key type encoded in the ASN1 structure. Added DER private key
support to pkcs8 application.
[Steve Henson]
*) SSL 3/TLS 1 servers now don't request certificates when an anonymous
ciphersuites has been selected (as required by the SSL 3/TLS 1
specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
is set, we interpret this as a request to violate the specification
(the worst that can happen is a handshake failure, and 'correct'
behaviour would result in a handshake failure anyway).
[Bodo Moeller]
*) In SSL_CTX_add_session, take into account that there might be multiple
SSL_SESSION structures with the same session ID (e.g. when two threads
concurrently obtain them from an external cache).
The internal cache can handle only one SSL_SESSION with a given ID,
so if there's a conflict, we now throw out the old one to achieve
consistency.
[Bodo Moeller]
*) Add OIDs for idea and blowfish in CBC mode. This will allow both
to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
some routines that use cipher OIDs: some ciphers do not have OIDs
defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
example.
[Steve Henson]
*) Simplify the trust setting structure and code. Now we just have
two sequences of OIDs for trusted and rejected settings. These will
typically have values the same as the extended key usage extension
and any application specific purposes.
The trust checking code now has a default behaviour: it will just
check for an object with the same NID as the passed id. Functions can
be provided to override either the default behaviour or the behaviour
for a given id. SSL client, server and email already have functions
in place for compatibility: they check the NID and also return "trusted"
if the certificate is self signed.
[Steve Henson]
*) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
traditional format into an EVP_PKEY structure.
[Steve Henson]
*) Add a password callback function PEM_cb() which either prompts for
a password if usr_data is NULL or otherwise assumes it is a null
terminated password. Allow passwords to be passed on command line
environment or config files in a few more utilities.
[Steve Henson]
*) Add a bunch of DER and PEM functions to handle PKCS#8 format private
keys. Add some short names for PKCS#8 PBE algorithms and allow them
to be specified on the command line for the pkcs8 and pkcs12 utilities.
Update documentation.
[Steve Henson]
*) Support for ASN1 "NULL" type. This could be handled before by using
ASN1_TYPE but there wasn't any function that would try to read a NULL
and produce an error if it couldn't. For compatibility we also have
ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
don't allocate anything because they don't need to.
[Steve Henson]
*) Initial support for MacOS is now provided. Examine INSTALL.MacOS
for details.
[Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
*) Rebuild of the memory allocation routines used by OpenSSL code and
possibly others as well. The purpose is to make an interface that
provide hooks so anyone can build a separate set of allocation and
deallocation routines to be used by OpenSSL, for example memory
pool implementations, or something else, which was previously hard
since Malloc(), Realloc() and Free() were defined as macros having
the values malloc, realloc and free, respectively (except for Win32
compilations). The same is provided for memory debugging code.
OpenSSL already comes with functionality to find memory leaks, but
this gives people a chance to debug other memory problems.
With these changes, a new set of functions and macros have appeared:
CRYPTO_set_mem_debug_functions() [F]
CRYPTO_get_mem_debug_functions() [F]
CRYPTO_dbg_set_options() [F]
CRYPTO_dbg_get_options() [F]
CRYPTO_malloc_debug_init() [M]
The memory debug functions are NULL by default, unless the library
is compiled with CRYPTO_MDEBUG or friends is defined. If someone
wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
gives the standard debugging functions that come with OpenSSL) or
CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
provided by the library user) must be used. When the standard
debugging functions are used, CRYPTO_dbg_set_options can be used to
request additional information:
CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
the CRYPTO_MDEBUG_xxx macro when compiling the library.
Also, things like CRYPTO_set_mem_functions will always give the
expected result (the new set of functions is used for allocation
and deallocation) at all times, regardless of platform and compiler
options.
To finish it up, some functions that were never use in any other
way than through macros have a new API and new semantic:
CRYPTO_dbg_malloc()
CRYPTO_dbg_realloc()
CRYPTO_dbg_free()
All macros of value have retained their old syntax.
[Richard Levitte and Bodo Moeller]
*) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
ordering of SMIMECapabilities wasn't in "strength order" and there
was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
algorithm.
[Steve Henson]
*) Some ASN1 types with illegal zero length encoding (INTEGER,
ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
[Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
*) Merge in my S/MIME library for OpenSSL. This provides a simple
S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
functionality to handle multipart/signed properly) and a utility
called 'smime' to call all this stuff. This is based on code I
originally wrote for Celo who have kindly allowed it to be
included in OpenSSL.
[Steve Henson]
*) Add variants des_set_key_checked and des_set_key_unchecked of
des_set_key (aka des_key_sched). Global variable des_check_key
decides which of these is called by des_set_key; this way
des_check_key behaves as it always did, but applications and
the library itself, which was buggy for des_check_key == 1,
have a cleaner way to pick the version they need.
[Bodo Moeller]
*) New function PKCS12_newpass() which changes the password of a
PKCS12 structure.
[Steve Henson]
*) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
dynamic mix. In both cases the ids can be used as an index into the
table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
functions so they accept a list of the field values and the
application doesn't need to directly manipulate the X509_TRUST
structure.
[Steve Henson]
*) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
need initialising.
[Steve Henson]
*) Modify the way the V3 extension code looks up extensions. This now
works in a similar way to the object code: we have some "standard"
extensions in a static table which is searched with OBJ_bsearch()
and the application can add dynamic ones if needed. The file
crypto/x509v3/ext_dat.h now has the info: this file needs to be
updated whenever a new extension is added to the core code and kept
in ext_nid order. There is a simple program 'tabtest.c' which checks
this. New extensions are not added too often so this file can readily
be maintained manually.
There are two big advantages in doing things this way. The extensions
can be looked up immediately and no longer need to be "added" using
X509V3_add_standard_extensions(): this function now does nothing.
[Side note: I get *lots* of email saying the extension code doesn't
work because people forget to call this function]
Also no dynamic allocation is done unless new extensions are added:
so if we don't add custom extensions there is no need to call
X509V3_EXT_cleanup().
[Steve Henson]
*) Modify enc utility's salting as follows: make salting the default. Add a
magic header, so unsalted files fail gracefully instead of just decrypting
to garbage. This is because not salting is a big security hole, so people
should be discouraged from doing it.
[Ben Laurie]
*) Fixes and enhancements to the 'x509' utility. It allowed a message
digest to be passed on the command line but it only used this
parameter when signing a certificate. Modified so all relevant
operations are affected by the digest parameter including the
-fingerprint and -x509toreq options. Also -x509toreq choked if a
DSA key was used because it didn't fix the digest.
[Steve Henson]
*) Initial certificate chain verify code. Currently tests the untrusted
certificates for consistency with the verify purpose (which is set
when the X509_STORE_CTX structure is set up) and checks the pathlength.
There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
this is because it will reject chains with invalid extensions whereas
every previous version of OpenSSL and SSLeay made no checks at all.
Trust code: checks the root CA for the relevant trust settings. Trust
settings have an initial value consistent with the verify purpose: e.g.
if the verify purpose is for SSL client use it expects the CA to be
trusted for SSL client use. However the default value can be changed to
permit custom trust settings: one example of this would be to only trust
certificates from a specific "secure" set of CAs.
Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
which should be used for version portability: especially since the
verify structure is likely to change more often now.
Dr. Stephen Henson
committed
SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
to set them. If not set then assume SSL clients will verify SSL servers
and vice versa.
Dr. Stephen Henson
committed
Two new options to the verify program: -untrusted allows a set of
untrusted certificates to be passed in and -purpose which sets the
intended purpose of the certificate. If a purpose is set then the
new chain verify code is used to check extension consistency.
[Steve Henson]
*) Support for the authority information access extension.
[Steve Henson]
*) Modify RSA and DSA PEM read routines to transparently handle
PKCS#8 format private keys. New *_PUBKEY_* functions that handle
public keys in a format compatible with certificate
SubjectPublicKeyInfo structures. Unfortunately there were already
functions called *_PublicKey_* which used various odd formats so
these are retained for compatibility: however the DSA variants were
never in a public release so they have been deleted. Changed dsa/rsa
utilities to handle the new format: note no releases ever handled public
keys so we should be OK.
The primary motivation for this change is to avoid the same fiasco
that dogs private keys: there are several incompatible private key
formats some of which are standard and some OpenSSL specific and
require various evil hacks to allow partial transparent handling and
even then it doesn't work with DER formats. Given the option anything
other than PKCS#8 should be dumped: but the other formats have to
stay in the name of compatibility.
With public keys and the benefit of hindsight one standard format
is used which works with EVP_PKEY, RSA or DSA structures: though
it clearly returns an error if you try to read the wrong kind of key.
Added a -pubkey option to the 'x509' utility to output the public key.
Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
(renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
that do the same as the EVP_PKEY_assign_*() except they up the
reference count of the added key (they don't "swallow" the
supplied key).
[Steve Henson]
*) Fixes to crypto/x509/by_file.c the code to read in certificates and
CRLs would fail if the file contained no certificates or no CRLs:
added a new function to read in both types and return the number
read: this means that if none are read it will be an error. The
DER versions of the certificate and CRL reader would always fail
because it isn't possible to mix certificates and CRLs in DER format
without choking one or the other routine. Changed this to just read
a certificate: this is the best we can do. Also modified the code
in apps/verify.c to take notice of return codes: it was previously
attempting to read in certificates from NULL pointers and ignoring
any errors: this is one reason why the cert and CRL reader seemed
to work. It doesn't check return codes from the default certificate
routines: these may well fail if the certificates aren't installed.
[Steve Henson]
*) Code to support otherName option in GeneralName.
[Steve Henson]
*) First update to verify code. Change the verify utility
so it warns if it is passed a self signed certificate:
for consistency with the normal behaviour. X509_verify
has been modified to it will now verify a self signed
certificate if *exactly* the same certificate appears
in the store: it was previously impossible to trust a
single self signed certificate. This means that:
openssl verify ss.pem
now gives a warning about a self signed certificate but
openssl verify -CAfile ss.pem ss.pem
is OK.
[Steve Henson]
*) For servers, store verify_result in SSL_SESSION data structure
(and add it to external session representation).
This is needed when client certificate verifications fails,
but an application-provided verification callback (set by
SSL_CTX_set_cert_verify_callback) allows accepting the session
anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
but returns 1): When the session is reused, we have to set
ssl->verify_result to the appropriate error code to avoid
security holes.
[Bodo Moeller, problem pointed out by Lutz Jaenicke]
*) Fix a bug in the new PKCS#7 code: it didn't consider the
case in PKCS7_dataInit() where the signed PKCS7 structure
didn't contain any existing data because it was being created.
[Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
*) Add a salt to the key derivation routines in enc.c. This
forms the first 8 bytes of the encrypted file. Also add a
-S option to allow a salt to be input on the command line.
[Steve Henson]
*) New function X509_cmp(). Oddly enough there wasn't a function
to compare two certificates. We do this by working out the SHA1
hash and comparing that. X509_cmp() will be needed by the trust
code.
[Steve Henson]
*) SSL_get1_session() is like SSL_get_session(), but increments
the reference count in the SSL_SESSION returned.
[Geoff Thorpe <geoff@eu.c2.net>]
*) Fix for 'req': it was adding a null to request attributes.
Also change the X509_LOOKUP and X509_INFO code to handle
certificate auxiliary information.
[Steve Henson]
*) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
the 'enc' command.
[Steve Henson]
*) Add the possibility to add extra information to the memory leak
detecting output, to form tracebacks, showing from where each
allocation was originated: CRYPTO_push_info("constant string") adds
the string plus current file name and line number to a per-thread
stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
is like calling CYRPTO_pop_info() until the stack is empty.
Also updated memory leak detection code to be multi-thread-safe.
[Richard Levitte]
*) Add options -text and -noout to pkcs7 utility and delete the
encryption options which never did anything. Update docs.
[Steve Henson]
*) Add options to some of the utilities to allow the pass phrase
to be included on either the command line (not recommended on
OSes like Unix) or read from the environment. Update the
manpages and fix a few bugs.
[Steve Henson]
*) Add a few manpages for some of the openssl commands.
[Steve Henson]
Dr. Stephen Henson
committed
*) Fix the -revoke option in ca. It was freeing up memory twice,
leaking and not finding already revoked certificates.
[Steve Henson]
*) Extensive changes to support certificate auxiliary information.
This involves the use of X509_CERT_AUX structure and X509_AUX
functions. An X509_AUX function such as PEM_read_X509_AUX()
can still read in a certificate file in the usual way but it
will also read in any additional "auxiliary information". By
doing things this way a fair degree of compatibility can be
retained: existing certificates can have this information added
using the new 'x509' options.
Current auxiliary information includes an "alias" and some trust
settings. The trust settings will ultimately be used in enhanced
certificate chain verification routines: currently a certificate
can only be trusted if it is self signed and then it is trusted
for all purposes.
[Steve Henson]
*) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
The problem was that one of the replacement routines had not been working
since SSLeay releases. For now the offending routine has been replaced
with non-optimised assembler. Even so, this now gives around 95%
performance improvement for 1024 bit RSA signs.
[Mark Cox]
*) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
handling. Most clients have the effective key size in bits equal to
the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
A few however don't do this and instead use the size of the decrypted key
to determine the RC2 key length and the AlgorithmIdentifier to determine
the effective key length. In this case the effective key length can still
be 40 bits but the key length can be 168 bits for example. This is fixed
by manually forcing an RC2 key into the EVP_PKEY structure because the
EVP code can't currently handle unusual RC2 key sizes: it always assumes
the key length and effective key length are equal.
[Steve Henson]
*) Add a bunch of functions that should simplify the creation of
X509_NAME structures. Now you should be able to do:
X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
and have it automatically work out the correct field type and fill in
the structures. The more adventurous can try:
X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
and it will (hopefully) work out the correct multibyte encoding.
[Steve Henson]
*) Change the 'req' utility to use the new field handling and multibyte
copy routines. Before the DN field creation was handled in an ad hoc
way in req, ca, and x509 which was rather broken and didn't support
BMPStrings or UTF8Strings. Since some software doesn't implement
BMPStrings or UTF8Strings yet, they can be enabled using the config file
using the dirstring_type option. See the new comment in the default
openssl.cnf for more info.
[Steve Henson]
- Assure unique random numbers after fork().
- Make sure that concurrent threads access the global counter and
md serializably so that we never lose entropy in them
or use exactly the same state in multiple threads.
Access to the large state is not always serializable because
the additional locking could be a performance killer, and
md should be large enough anyway.
[Bodo Moeller]
*) New file apps/app_rand.c with commonly needed functionality
for handling the random seed file.
Use the random seed file in some applications that previously did not:
ca,
dsaparam -genkey (which also ignored its '-rand' option),
s_client,
s_server,
x509 (when signing).
Except on systems with /dev/urandom, it is crucial to have a random
seed file at least for key creation, DSA signing, and for DH exchanges;
gendh and gendsa (unlike genrsa) used to read only the first byte
of each file listed in the '-rand' option. The function as previously
found in genrsa is now in app_rand.c and is used by all programs
that support '-rand'.
[Bodo Moeller]
*) In RAND_write_file, use mode 0600 for creating files;
don't just chmod when it may be too late.
[Bodo Moeller]
*) Report an error from X509_STORE_load_locations
when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
[Bill Perry]
Dr. Stephen Henson
committed
*) New function ASN1_mbstring_copy() this copies a string in either
ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
into an ASN1_STRING type. A mask of permissible types is passed
and it chooses the "minimal" type to use or an error if not type
is suitable.
[Steve Henson]
Dr. Stephen Henson
committed
*) Add function equivalents to the various macros in asn1.h. The old
macros are retained with an M_ prefix. Code inside the library can
use the M_ macros. External code (including the openssl utility)
should *NOT* in order to be "shared library friendly".
[Steve Henson]
*) Add various functions that can check a certificate's extensions
to see if it usable for various purposes such as SSL client,
server or S/MIME and CAs of these types. This is currently
VERY EXPERIMENTAL but will ultimately be used for certificate chain
verification. Also added a -purpose flag to x509 utility to
print out all the purposes.
[Steve Henson]
*) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
functions.
[Steve Henson]
*) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
for, obtain and decode and extension and obtain its critical flag.
This allows all the necessary extension code to be handled in a
single function call.
[Steve Henson]
*) RC4 tune-up featuring 30-40% performance improvement on most RISC
platforms. See crypto/rc4/rc4_enc.c for further details.
[Andy Polyakov]
*) New -noout option to asn1parse. This causes no output to be produced
its main use is when combined with -strparse and -out to extract data
from a file (which may not be in ASN.1 format).
[Steve Henson]
*) Fix for pkcs12 program. It was hashing an invalid certificate pointer
when producing the local key id.
[Richard Levitte <levitte@stacken.kth.se>]
Dr. Stephen Henson
committed
*) New option -dhparam in s_server. This allows a DH parameter file to be
stated explicitly. If it is not stated then it tries the first server
certificate file. The previous behaviour hard coded the filename
"server.pem".
[Steve Henson]
Dr. Stephen Henson
committed
*) Add -pubin and -pubout options to the rsa and dsa commands. These allow
a public key to be input or output. For example:
openssl rsa -in key.pem -pubout -out pubkey.pem
Also added necessary DSA public key functions to handle this.
[Steve Henson]
*) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
in the message. This was handled by allowing
X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
[Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
*) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
to the end of the strings whereas this didn't. This would cause problems
if strings read with d2i_ASN1_bytes() were later modified.
[Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
*) Fix for base64 decode bug. When a base64 bio reads only one line of
data and it contains EOF it will end up returning an error. This is
caused by input 46 bytes long. The cause is due to the way base64
BIOs find the start of base64 encoded data. They do this by trying a
trial decode on each line until they find one that works. When they
do a flag is set and it starts again knowing it can pass all the
data directly through the decoder. Unfortunately it doesn't reset
the context it uses. This means that if EOF is reached an attempt
is made to pass two EOFs through the context and this causes the
resulting error. This can also cause other problems as well. As is
usual with these problems it takes *ages* to find and the fix is
trivial: move one line.
[Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
Dr. Stephen Henson
committed
*) Ugly workaround to get s_client and s_server working under Windows. The
old code wouldn't work because it needed to select() on sockets and the
tty (for keypresses and to see if data could be written). Win32 only
supports select() on sockets so we select() with a 1s timeout on the
sockets and then see if any characters are waiting to be read, if none
are present then we retry, we also assume we can always write data to
the tty. This isn't nice because the code then blocks until we've
received a complete line of data and it is effectively polling the
keyboard at 1s intervals: however it's quite a bit better than not
working at all :-) A dedicated Windows application might handle this
with an event loop for example.
[Steve Henson]
Dr. Stephen Henson
committed
*) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
will be called when RSA_sign() and RSA_verify() are used. This is useful
if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
should *not* be used: RSA_sign() and RSA_verify() must be used instead.
This necessitated the support of an extra signature type NID_md5_sha1
for SSL signatures and modifications to the SSL library to use it instead
of calling RSA_public_decrypt() and RSA_private_encrypt().
[Steve Henson]