Remove sign/verify and required_pkey_type fields of EVP_MD: these are a
legacy from when digests were linked to public key types. All signing is
now handled by the corresponding EVP_PKEY_METHOD.
Only allow supported digest types in RSA EVP_PKEY_METHOD: other algorithms
already block unsupported types.
Remove now obsolete EVP_dss1() and EVP_ecdsa().
Reviewed-by: Richard Levitte <levitte@openssl.org>
Add CRYPTO_free_ex_index (for shared libraries)
Unify and complete the documentation for all "ex_data" API's and objects.
Replace xxx_get_ex_new_index functions with a macro.
Added an exdata test.
Renamed the ex_data internal datatypes.
Reviewed-by: Matt Caswell <matt@openssl.org>
Following on from the previous commit this adds some documentation for the
BN_with_flags function which is easy to misuse.
Reviewed-by: Emilia Käsper <emilia@openssl.org>
In theory the pthreads approach for Thread Local Storage should be more
portable.
This also changes some APIs in order to accommodate this change. In
particular ASYNC_init_pool is renamed ASYNC_init_thread and
ASYNC_free_pool is renamed ASYNC_cleanup_thread. Also introduced ASYNC_init
and ASYNC_cleanup.
Reviewed-by: Rich Salz <rsalz@openssl.org>
There are potential deadlock situations that can occur if code executing
within the context of a job aquires a lock, and then pauses the job. This
adds an ability to temporarily block pauses from occuring whilst performing
work and holding a lock.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Clarify that you must only call this after all async jobs have
completed - otherwise you could get memory leaks.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Add some clarifications to the async documentation. Also changed
ASYNC_pause_job() so that it returns success if you are not within the
context of a job. This is so that engines can be used either asynchronously
or synchronously and can treat an error from ASYNC_pause_job() as a real
error.
Reviewed-by: Rich Salz <rsalz@openssl.org>
The new function SSL_use_certificate_chain_file was always crashing in
the internal function use_certificate_chain_file because it would pass a
NULL value for SSL_CTX *, but use_certificate_chain_file would
unconditionally try to dereference it.
Reviewed-by: Stephen Henson <steve@openssl.org>
EVP_SignInit_ex was missing from the NAME section of its man page so
typing "man EVP_SignInit_ex" failed to load the page.
Reviewed-by: Stephen Henson <steve@openssl.org>
There were a few remaining references to SSLv2 support which are no longer
relevant now that it has been removed.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
SSL_state has been replaced by SSL_get_state and SSL_set_state is no longer
supported.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Rename the enum HANDSHAKE_STATE to OSSL_HANDSHAKE_STATE to ensure there are
no namespace clashes, and convert it into a typedef.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Update the return type for SSL_state in the documentation.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
If something was "present in all versions" of SSLeay, or if it was
added to a version of SSLeay (and therefore predates OpenSSL),
remove mention of it. Documentation history now starts with OpenSSL.
Remove mention of all history before OpenSSL 0.9.8, inclusive.
Remove all AUTHOR sections.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Previous language was unclear. New language isn't pretty but I believe
it is more accurate.
Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Laurie <ben@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
The function SSLv23_server_method() is an old name. New code should use
TLS_server_method() instead. Therefore don't use SSLv23_server_method() in
an example in the docs.
Reviewed-by: Richard Levitte <levitte@openssl.org>
There are a number of engines in the OpenSSL source code which are now
obsolete. The following engines have been removed: 4758cca, aep, atalla,
cswift, nuron, sureware.
Reviewed-by: Rich Salz <rsalz@openssl.org>
This patch updates the "DEFAULT" cipherstring to be
"ALL:!COMPLEMENTOFDEFAULT:!eNULL". COMPLEMENTOFDEFAULT is now defined
internally by a flag on each ciphersuite indicating whether it should be
excluded from DEFAULT or not. This gives us control at an individual
ciphersuite level as to exactly what is in DEFAULT and what is not.
Finally all DES, RC4 and RC2 ciphersuites are added to COMPLEMENTOFDEFAULT
and hence removed from DEFAULT.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Clarify that user code is required to allocate sufficient space for the
addressing scheme in use in the call to DTLSv1_listen.
Reviewed-by: Andy Polyakov <appro@openssl.org>
This commit adds documentation for the new -listen option to s_server. Along
the way it also adds documentation for -dtls, -dtls1 and -dtls1_2 which was
missing.
Reviewed-by: Andy Polyakov <appro@openssl.org>
If the field separator isn't specified through -nameopt then use
XN_FLAG_SEP_CPLUS_SPC instead of printing nothing and returing an error.
PR#2397
Reviewed-by: Tim Hudson <tjh@openssl.org>
Both now warn once if directory isn't writeable.
Both now warn on file-write errors (multiple times).
Update manpage to describe both program and script correctly.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Having a general fill-column of 78 may look nice at first sight, but
if the edited text gets indented a bit afterward (such as with git
comments in 'git log'), it suddenly turns not so nice on a classic 80
columns terminal. A fill-column of 70 will serve us better.
Reviewed-by: Rich Salz <rsalz@openssl.org>
On Unix/Linux platforms, merge c_rehash script into openssl as a
C program.
Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
In some environments, such as firmware, the current system time is entirely
meaningless. Provide a clean mechanism to suppress the checks against it.
Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Remove asn1-kludge option from the req utility. It was a decade old
workaround for CAs and software which required an invalid encoding
of PKCS#10 certificate requests: omitting the attributes field even
though it is not OPTIONAL.
Reviewed-by: Rich Salz <rsalz@openssl.org>
This file, when copied to .dir-locals.el in the OpenSSL source top,
will make sure that the CC mode style "OpenSSL-II" will be used for
all C files.
Additionally, I makes sure that tabs are never used as indentation
character, regardless of the emacs mode, and that the fill column is
78.
Reviewed-by: Rich Salz <rsalz@openssl.org>
If the seed value for dsa key generation is too short (< qsize),
return an error. Also update the documentation.
Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
Make all mention of digest algorithm use "any supported algorithm"
RT2071, some new manpages from Victor B. Wagner <vitus@cryptocom.ru>:
X509_LOOKUP_hash_dir.pod
X509_check_ca.pod
X509_check_issued.pod
RT 1600:
Remove references to non-existant objects(3)
Add RETURN VALUES to BIO_do_accept page.
RT1818:
RSA_sign Can return values other than 0 on failure.
RT3634:
Fix AES CBC aliases (Steffen Nurpmeso <sdaoden@yandex.com>)
RT3678:
Some clarifications to BIO_new_pair
(Devchandra L Meetei <dlmeetei@gmail.com>)
RT3787:
Fix some EVP_ function return values
(Laetitia Baudoin <lbaudoin@google.com>)
Reviewed-by: Tim Hudson <tjh@openssl.org>
L<foo|foo> is sub-optimal If the xref is the same as the title,
which is what we do, then you only need L<foo>. This fixes all
1457 occurrences in 349 files. Approximately. (And pod used to
need both.)
Reviewed-by: Richard Levitte <levitte@openssl.org>
This was obsolete in 2001. This is not the same as Gost94 digest.
Thanks to Dmitry Belyavsky <beldmit@gmail.com> for review and advice.
Reviewed-by: Matt Caswell <matt@openssl.org>
Thanks folks:
348 Benjamin Kaduk
317 Christian Brueffer
254 Erik Tews
253 Erik Tews
219 Carl Mehner
155 (ghost)
95 mancha
51 DominikNeubauer
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Add support for loading verify and chain stores in SSL_CONF.
Commands to set verify mode and client CA names.
Add documentation.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
The -show_chain flag to the verify command line app shows information about
the chain that has been built. This commit adds the text "untrusted" against
those certificates that have been used from the untrusted list.
Reviewed-by: Rich Salz <rsalz@openssl.org>
The function X509_verify_cert checks the value of |ctx->chain| at the
beginning, and if it is NULL then it initialises it, along with the value
of ctx->untrusted. The normal way to use X509_verify_cert() is to first
call X509_STORE_CTX_init(); then set up various parameters etc; then call
X509_verify_cert(); then check the results; and finally call
X509_STORE_CTX_cleanup(). The initial call to X509_STORE_CTX_init() sets
|ctx->chain| to NULL. The only place in the OpenSSL codebase where
|ctx->chain| is set to anything other than a non NULL value is in
X509_verify_cert itself. Therefore the only ways that |ctx->chain| could be
non NULL on entry to X509_verify_cert is if one of the following occurs:
1) An application calls X509_verify_cert() twice without re-initialising
in between.
2) An application reaches inside the X509_STORE_CTX structure and changes
the value of |ctx->chain| directly.
With regards to the second of these, we should discount this - it should
not be supported to allow this.
With regards to the first of these, the documentation is not exactly
crystal clear, but the implication is that you must call
X509_STORE_CTX_init() before each call to X509_verify_cert(). If you fail
to do this then, at best, the results would be undefined.
Calling X509_verify_cert() with |ctx->chain| set to a non NULL value is
likely to have unexpected results, and could be dangerous. This commit
changes the behaviour of X509_verify_cert() so that it causes an error if
|ctx->chain| is anything other than NULL (because this indicates that we
have not been initialised properly). It also clarifies the associated
documentation. This is a follow up commit to CVE-2015-1793.
Reviewed-by: Stephen Henson <steve@openssl.org>
Add secure heap for storage of private keys (when possible).
Add BIO_s_secmem(), CBIGNUM, etc.
Add BIO_CTX_secure_new so all BIGNUM's in the context are secure.
Contributed by Akamai Technologies under the Corporate CLA.
Reviewed-by: Richard Levitte <levitte@openssl.org>
This is a workaround so old that nobody remembers what buggy clients
it was for. It's also been broken in stable branches for two years and
nobody noticed (see
https://boringssl-review.googlesource.com/#/c/1694/).
Reviewed-by: Tim Hudson <tjh@openssl.org>
The new accessors SSL_get_client_random, SSL_get_server_random and
SSL_SESSION_get_master_key should return a size_t to match the type of the
|outlen| parameter.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Change the new SSL_get_client_random(), SSL_get_server_random() and
SSL_SESSION_get_master_key() functions to use size_t for |outlen| instead of
int.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Tor uses these values to implement a low-rent clone of RFC 5705 (which,
in our defense, we came up with before RFC 5705 existed). But now that
ssl_st is opaque, we need another way to get at them.
Includes documentation, with suitable warnings about not actually
using these functions.
Signed-off-by: Nick Mathewson <nickm@torproject.org>
Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
On the server side, if you want to know which ciphers the client
offered, you had to use session->ciphers. But that field is no
longer visible, so we need a method to get at it.
Signed-off-by: Nick Mathewson <nickm@torproject.org>
Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Add support for PKCS#8 private key encryption using the scrypt algorithm
in the pkcs8 utility. Update documentation.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Remove support for the two export grade static DH ciphersuites. These two
ciphersuites were newly added (along with a number of other static DH
ciphersuites) to 1.0.2. However the two export ones have *never* worked
since they were introduced. It seems strange in any case to be adding new
export ciphersuites, and given "logjam" it also does not seem correct to
fix them.
Reviewed-by: Richard Levitte <levitte@openssl.org>
If BN_rand is called with |bits| set to 1 and |top| set to 1 then a 1 byte
buffer overflow can occur. There are no such instances within the OpenSSL at
the moment.
Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke, Filip Palian for
discovering and reporting this issue.
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
The functions BN_rshift and BN_lshift shift their arguments to the right or
left by a specified number of bits. Unpredicatable results (including
crashes) can occur if a negative number is supplied for the shift value.
Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke and Filip Palian
for discovering and reporting this issue.
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Given the pervasive nature of TLS extensions it is inadvisable to run
OpenSSL without support for them. It also means that maintaining
the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably
not well tested). Therefore it is being removed.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
- Do not advise generation of DH parameters with dsaparam to save
computation time.
- Promote use of custom parameters more, and explicitly forbid use of
built-in parameters weaker than 2048 bits.
- Advise the callback to ignore <keylength> - it is currently called
with 1024 bits, but this value can and should be safely ignored by
servers.
Reviewed-by: Rich Salz <rsalz@openssl.org>
The default bitlength is now 2048. Also clarify that either the number
of bits or the generator must be present:
$ openssl dhparam -2
and
$ openssl dhparam 2048
generate parameters but
$ openssl dhparam
does not.
Reviewed-by: Matt Caswell <matt@openssl.org>
Rewrite and tidy ASN1_INTEGER and ASN1_ENUMERATED handling.
Remove code duplication.
New functions to convert between int64_t and ASN.1 types without the
quirks of the old long conversion functions.
Add documentation.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Following on from the removal of libcrypto and libssl support for Kerberos
this commit removes all remaining references to Kerberos.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Add SSL_use_certiicate_chain file functions: this is works the same
way as SSL_CTX_use_certificate_chain_file but for an SSL structure.
Update SSL_CONF code to use the new function.
Update docs.
Update ordinals.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Add command line switch entries to table and return SSL_CONF_TYPE_NONE for
them in SSL_CONF_cmd_value_type.
Update docs.
Reviewed-by: Rich Salz <rsalz@openssl.org>
This gets BN_.*free:
BN_BLINDING_free BN_CTX_free BN_FLG_FREE BN_GENCB_free
BN_MONT_CTX_free BN_RECP_CTX_free BN_clear_free BN_free BUF_MEM_free
Also fix a call to DSA_SIG_free to ccgost engine and remove some #ifdef'd
dead code in engines/e_ubsec.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Don't check for NULL before calling a free routine. This gets X509_.*free:
x509_name_ex_free X509_policy_tree_free X509_VERIFY_PARAM_free
X509_STORE_free X509_STORE_CTX_free X509_PKEY_free
X509_OBJECT_free_contents X509_LOOKUP_free X509_INFO_free
Reviewed-by: Richard Levitte <levitte@openssl.org>
Add tables to convert between SSL_CIPHER fields and indices for ciphers
and MACs.
Reorganise ssl_ciph.c to use tables to lookup values and load them.
New functions SSL_CIPHER_get_cipher_nid and SSL_CIPHER_get_digest_nid.
Add documentation.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Add new functions ASN1_TYPE_pack_sequence and ASN1_TYPE_unpack_sequence:
these encode and decode ASN.1 SEQUENCE using an ASN1_TYPE structure.
Update ordinals.
Reviewed-by: Rich Salz <rsalz@openssl.org>
EVP_.*free; this gets:
EVP_CIPHER_CTX_free EVP_PKEY_CTX_free EVP_PKEY_asn1_free
EVP_PKEY_asn1_set_free EVP_PKEY_free EVP_PKEY_free_it
EVP_PKEY_meth_free; and also EVP_CIPHER_CTX_cleanup
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
The recent updates to libssl to enforce stricter return code checking, left
a small number of instances behind where return codes were being swallowed
(typically because the function they were being called from was declared as
void). This commit fixes those instances to handle the return codes more
appropriately.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Support loading of key and certificate from the same file if
SSL_CONF_FLAG_REQUIRE_PRIVATE is set. This is done by remembering the
filename used for each certificate type and attempting to load a private
key from the file when SSL_CONF_CTX_finish is called.
Update docs.
Reviewed-by: Richard Levitte <levitte@openssl.org>
The justification for RAND_pseudo_bytes is somewhat dubious, and the reality
is that it is frequently being misused. RAND_bytes and RAND_pseudo_bytes in
the default implementation both end up calling ssleay_rand_bytes. Both may
return -1 in an error condition. If there is insufficient entropy then
both will return 0, but RAND_bytes will additionally add an error to the
error queue. They both return 1 on success.
Therefore the fundamental difference between the two is that one will add an
error to the error queue with insufficient entory whilst the other will not.
Frequently there are constructions of this form:
if(RAND_pseudo_bytes(...) <= 1)
goto err;
In the above form insufficient entropy is treated as an error anyway, so
RAND_bytes is probably the better form to use.
This form is also seen:
if(!RAND_pseudo_bytes(...))
goto err;
This is technically not correct at all since a -1 return value is
incorrectly handled - but this form will also treat insufficient entropy as
an error.
Within libssl it is required that you have correctly seeded your entropy
pool and so there seems little benefit in using RAND_pseudo_bytes.
Similarly in libcrypto many operations also require a correctly seeded
entropy pool and so in most interesting cases you would be better off
using RAND_bytes anyway. There is a significant risk of RAND_pseudo_bytes
being incorrectly used in scenarios where security can be compromised by
insufficient entropy.
If you are not using the default implementation, then most engines use the
same function to implement RAND_bytes and RAND_pseudo_bytes in any case.
Given its misuse, limited benefit, and potential to compromise security,
RAND_pseudo_bytes has been deprecated.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Start ensuring all OpenSSL "free" routines allow NULL, and remove
any if check before calling them.
This gets DH_free, DSA_free, RSA_free
Reviewed-by: Matt Caswell <matt@openssl.org>
Start ensuring all OpenSSL "free" routines allow NULL, and remove
any if check before calling them.
This gets ASN1_OBJECT_free and ASN1_STRING_free.
Reviewed-by: Matt Caswell <matt@openssl.org>
