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46 commits

Author SHA1 Message Date
Rich Salz
74924dcb38 More secure storage of key material. 
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>
 2015-06-23 17:09:35 -04:00
Richard Levitte
b39fc56061 Identify and move common internal libcrypto header files 
There are header files in crypto/ that are used by a number of crypto/
submodules.  Move those to crypto/include/internal and adapt the
affected source code and Makefiles.

The header files that got moved are:

crypto/cryptolib.h
crypto/md32_common.h

Reviewed-by: Rich Salz <rsalz@openssl.org>
 2015-05-14 17:21:40 +02:00
Rich Salz
23a1d5e97c free NULL cleanup 7 
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>
 2015-04-30 21:37:06 -04:00
Matt Caswell
0f113f3ee4 Run util/openssl-format-source -v -c . 
Reviewed-by: Tim Hudson <tjh@openssl.org>
 2015-01-22 09:20:09 +00:00
Matt Caswell
829ccf6ab6 Implement internally opaque bn access from dh 
Reviewed-by: Tim Hudson <tjh@openssl.org>
 2014-12-08 21:40:32 +00:00
Dr. Stephen Henson
73e45b2dd1 remove OPENSSL_FIPSAPI 
Reviewed-by: Tim Hudson <tjh@openssl.org>
 2014-12-08 13:25:38 +00:00
Dr. Stephen Henson
1bfffe9bd0 Remove FIPS module code from crypto/dh 
Reviewed-by: Tim Hudson <tjh@openssl.org>
 2014-12-08 13:25:38 +00:00
Dr. Stephen Henson
4960411e1f Add flags for DH FIPS method. 
Update/fix prototypes in fips.h
 2011-06-08 15:53:08 +00:00
Dr. Stephen Henson
c2fd598994 Rename FIPS_mode_set and FIPS_mode. Theses symbols will be defined in 
the FIPS capable OpenSSL.
 2011-05-11 14:43:38 +00:00
Dr. Stephen Henson
74fac927b0 Return errors instead of aborting when selftest fails. 2011-04-22 11:12:56 +00:00
Dr. Stephen Henson
31360957fb DH keys have an (until now) unused 'q' parameter. When creating 
from DSA copy q across and if q present generate DH key in the
correct range.
 2011-04-07 15:01:48 +00:00
Dr. Stephen Henson
bc91494e06 New SP 800-56A compliant version of DH_compute_key(). 2011-03-08 19:07:26 +00:00
Dr. Stephen Henson
14ae26f2e4 Transfer error redirection to fips.h, add OPENSSL_FIPSAPI to source files 
that use it.
 2011-02-03 17:00:24 +00:00
Dr. Stephen Henson
83c3410b94 FIPS DH changes: selftest checks and key range checks. 2011-01-26 15:47:19 +00:00
Bodo Möller
bd31fb2145 Change to mitigate branch prediction attacks 
Submitted by: Matthew D Wood
Reviewed by: Bodo Moeller
 2007-03-28 00:15:28 +00:00
Mark J. Cox
c2cccfc585 Initialise ctx to NULL to avoid uninitialized free, noticed by 
Steve Kiernan
 2006-09-29 08:21:41 +00:00
Bodo Möller
5e3225cc44 Introduce limits to prevent malicious keys being able to 
cause a denial of service.  (CVE-2006-2940)
[Steve Henson, Bodo Moeller]
 2006-09-28 13:45:34 +00:00
Nils Larsch
47d5566646 fix error found by coverity: check if ctx is != NULL before calling BN_CTX_end() 2006-03-13 23:14:57 +00:00
Ben Laurie
bf3d6c0c9b Make D-H safer, include well-known primes. 2005-08-21 16:00:17 +00:00
Bodo Möller
a28a5d9c62 Use BN_with_flags() in a cleaner way. 2005-05-27 15:38:53 +00:00
Bodo Möller
46a643763d Implement fixed-window exponentiation to mitigate hyper-threading 
timing attacks.

BN_FLG_EXP_CONSTTIME requests this algorithm, and this done by default for
RSA/DSA/DH private key computations unless
RSA_FLAG_NO_EXP_CONSTTIME/DSA_FLAG_NO_EXP_CONSTTIME/
DH_FLAG_NO_EXP_CONSTTIME is set.

Submitted by: Matthew D Wood
Reviewed by: Bodo Moeller
 2005-05-16 01:43:31 +00:00
Andy Polyakov
3cc54008eb Pointer to BN_MONT_CTX could be used uninitialized. 2005-04-28 08:49:01 +00:00
Dr. Stephen Henson
879b19801a Change method_mont_p from (char *) to (BN_MONT_CTX *) and remove several 
casts.
 2005-04-27 00:04:59 +00:00
Dr. Stephen Henson
6ec8e63af6 Port BN_MONT_CTX_set_locked() from stable branch. 
The function rsa_eay_mont_helper() has been removed because it is no longer
needed after this change.
 2005-04-26 23:58:54 +00:00
Bodo Möller
aa4ce7315f Fix various incorrect error function codes. 
("perl util/ck_errf.pl */*.c */*/*.c" still reports many more.)
 2005-04-26 18:53:22 +00:00
Richard Levitte
43eb3b0130 We seem to carry some rests of the 0.9.6 [engine] ENGINE framework in form 
of unneeded includes of openssl/engine.h.
 2003-04-08 06:00:05 +00:00
Richard Levitte
0b13e9f055 Add the possibility to build without the ENGINE framework. 
PR: 287
 2003-01-30 17:39:26 +00:00
Geoff Thorpe
0e4aa0d2d2 As with RSA, which was modified recently, this change makes it possible to 
override key-generation implementations by placing handlers in the methods
for DSA and DH. Also, parameter generation for DSA and DH is possible by
another new handler for each method.
 2003-01-15 02:01:55 +00:00
Geoff Thorpe
cb78486d97 This commits changes to various parts of libcrypto required by the recent 
ENGINE surgery. DH, DSA, RAND, and RSA now use *both* "method" and ENGINE
pointers to manage their hooking with ENGINE. Previously their use of
"method" pointers was replaced by use of ENGINE references. See
crypto/engine/README for details.

Also, remove the ENGINE iterations from evp_test - even when the
cipher/digest code is committed in, this functionality would require a
different set of API calls.
 2001-09-25 20:23:40 +00:00
Bodo Möller
de3333bae4 length of secret exponent is needed only when we create one 2001-07-27 22:45:35 +00:00
Bodo Möller
924875e53b Undo DH_generate_key() change: s3_srvr.c was using it correctly 2001-07-27 22:34:25 +00:00
Bodo Möller
e5cb260365 DH key generation should not use a do ... while loop, 
or bogus DH parameters can be used for launching DOS attacks
 2001-07-25 17:48:51 +00:00
Bodo Möller
6aecef815c Don't preserve existing keys in DH_generate_key. 2001-07-25 17:20:34 +00:00
Bodo Möller
c62b26fdc6 Hide BN_CTX structure details. 
Incease the number of BIGNUMs in a BN_CTX.
 2001-03-08 15:56:15 +00:00
Ulf Möller
48f2ef8d00 make it a loop as in dsa 2001-02-20 16:17:25 +00:00
Ulf Möller
12c2fe8d53 Use BN_rand_range(). 2001-02-20 00:43:59 +00:00
Richard Levitte
f971ccb264 Constify DH-related code. 2000-11-07 14:30:37 +00:00
Richard Levitte
5270e7025e Merge the engine branch into the main trunk. All conflicts resolved. 
At the same time, add VMS support for Rijndael.
 2000-10-26 21:07:28 +00:00
Bodo Möller
6dad7bd69c Speed up DH with small generator. 2000-06-07 21:29:25 +00:00
Ulf Möller
9b141126d4 New functions BN_CTX_start(), BN_CTX_get(), BN_CTX_end() to access 
temporary BIGNUMs. BN_CTX still uses a fixed number of BIGNUMs, but
the BN_CTX implementation could now easily be changed.
 2000-02-05 14:17:32 +00:00
Dr. Stephen Henson
13066cee60 Initial support for DH_METHOD. Also added a DH lock. A few changes made to 
DSA_METHOD to make it more consistent with RSA_METHOD.
 1999-08-23 23:11:32 +00:00
Bodo Möller
ec577822f9 Change #include filenames from <foo.h> to <openssl.h>. 
Submitted by:
Reviewed by:
PR:
 1999-04-23 22:13:45 +00:00
Ulf Möller
6b691a5c85 Change functions to ANSI C. 1999-04-19 21:31:43 +00:00
Ralf S. Engelschall
dfeab0689f Import of old SSLeay release: SSLeay 0.9.1b (unreleased) 1998-12-21 11:00:56 +00:00
Ralf S. Engelschall
58964a4922 Import of old SSLeay release: SSLeay 0.9.0b 1998-12-21 10:56:39 +00:00
Ralf S. Engelschall
d02b48c63a Import of old SSLeay release: SSLeay 0.8.1b 1998-12-21 10:52:47 +00:00