Commit graph

22 commits

Author SHA1 Message Date
Bodo Möller
1a8521ff24 Fix the BIT STRING encoding of EC points or parameter seeds
(need to prevent the removal of trailing zero bits).
2006-12-19 15:10:46 +00:00
Mark J. Cox
951dfbb13a Introduce limits to prevent malicious keys being able to
cause a denial of service.  (CVE-2006-2940)
[Steve Henson, Bodo Moeller]

Fix ASN.1 parsing of certain invalid structures that can result
in a denial of service.  (CVE-2006-2937)  [Steve Henson]

Fix buffer overflow in SSL_get_shared_ciphers() function.
(CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]

Fix SSL client code which could crash if connecting to a
malicious SSLv2 server.  (CVE-2006-4343)
[Tavis Ormandy and Will Drewry, Google Security Team]
2006-09-28 11:29:03 +00:00
Nils Larsch
22d1087e16 backport recent changes from the cvs head 2006-02-08 19:16:33 +00:00
Nils Larsch
8b15c74018 give EC_GROUP_new_by_nid a more meanigful name:
EC_GROUP_new_by_nid -> EC_GROUP_new_by_curve_name
2005-05-10 11:37:47 +00:00
Nils Larsch
7dc17a6cf0 give EC_GROUP_*_nid functions a more meaningful name
EC_GROUP_get_nid -> EC_GROUP_get_curve_name
	EC_GROUP_set_nid -> EC_GROUP_set_curve_name
2005-05-08 22:09:12 +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
Geoff Thorpe
ca982e4870 Fix realloc usage in ec_curve.c
Submitted by: Nils Larsch
Reviewed by: Geoff Thorpe
2004-05-04 20:08:55 +00:00
Geoff Thorpe
37af03d311 General improvements to the ec_asn1.c code. This squashes at least one bug
(where it was impossible to create an EC certificate with a compressed
public key), and has some style improvements based on some comments from
Steve Henson about use of the ASN1 macros.

Submitted by: Nils Larsch
Reviewed by: Geoff Thorpe
2003-11-10 18:09:18 +00:00
Bodo Möller
f2aa055ec6 treat 'out' like i2d functions do; cf. asn1_item_flags_i2d (crypto/asn/tasn_enc.c) 2003-02-21 16:06:39 +00:00
Bodo Möller
62e3163b1b ECPublicKey_set_octet_string and ECPublicKey_get_octet_string
behaviour was not quite consistent with the conventions
for d2i and i2d functions as far as handling of the 'out'
or 'in' pointer is concerned.

This patch changes this behaviour, and renames the functions to
o2i_ECPublicKey and i2o_ECPublicKey (not 'd2i' and 'i2d' because the
external encoding is just a raw object string without any DER icing).

Submitted by: Nils Larsch
2003-02-21 13:58:23 +00:00
Bodo Möller
82516e3baf cofactor is optional in parameter encodings
Submitted by: Nils Larsch
2003-01-25 15:28:49 +00:00
Bodo Möller
34f1f2a81c less specific interface for EC_GROUP_get_basis_type
Submitted by: Nils Larsch, Bodo Moeller
2002-08-26 18:08:53 +00:00
Bodo Möller
8aefe253a7 move EC_GROUP_get_basis_type() from ec_lib.c to ec_asn1.c 2002-08-26 11:33:13 +00:00
Bodo Möller
7e31164ae0 ASN1 for binary curves
Submitted by: Nils Larsch
2002-08-26 11:25:54 +00:00
Bodo Möller
7eb18f1237 Simplify handling of named curves: get rid of EC_GROUP_new_by_name(),
EC_GROUP_new_by_nid() should be enough.  This avoids a lot of
redundancy.

Submitted by: Nils Larsch
2002-08-15 09:21:31 +00:00
Richard Levitte
5454829ae6 mem* functions are declared in string.h. 2002-08-10 01:36:14 +00:00
Bodo Möller
e172d60ddb Add ECDH support.
Additional changes:
 - use EC_GROUP_get_degree() in apps/req.c
 - add ECDSA and ECDH to apps/speed.c
 - adds support for EC curves over binary fields to ECDSA
 - new function EC_KEY_up_ref() in crypto/ec/ec_key.c
 - reorganize crypto/ecdsa/ecdsatest.c
 - add engine support for ECDH
 - fix a few bugs in ECDSA engine support

Submitted by: Douglas Stebila <douglas.stebila@sun.com>
2002-08-09 08:43:04 +00:00
Bodo Möller
14a7cfb32a use a generic EC_KEY structure (EC keys are not ECDSA specific)
Submitted by: Nils Larsch
2002-08-07 10:49:54 +00:00
Bodo Möller
0bee0e6294 Use SEC1 format for EC private keys.
This is not ECDSA specific, so it's now PEM_STRING_ECPRIVATEKEY etc.

Submitted by: Nils Larsch <nlarsch@compuserve.de>
2002-07-26 08:41:04 +00:00
Bodo Möller
5dbd3efce7 Replace 'ecdsaparam' commandline utility by 'ecparam'
(the same keys can be used for ECC schemes other than ECDSA)
and add some new options.

Similarly, use string "EC PARAMETERS" instead of "ECDSA PARAMETERS"
in 'PEM' format.

Fix ec_asn1.c (take into account the desired conversion form).

'make update'.

Submitted by: Nils Larsch
2002-07-14 16:54:31 +00:00
Bodo Möller
254ef80db1 simplify asn1_flag
Submitted by: Nils Larsch
Reviewed by: Bodo Moeller
2002-06-12 14:01:17 +00:00
Bodo Möller
012c86ab74 move ECC ASN1 that is not specific to ECDSA into crypto/ec/,
and make some appropriate changes to the EC library.

Submitted by: Nils Larsch
2002-06-10 12:41:18 +00:00