cause a denial of service.  (CVE-2006-2940)
[Steve Henson, Bodo Moeller]

Submitted by: David Hartman <david_hartman@symantec.com>

EC_GROUP_new_by_nid -> EC_GROUP_new_by_curve_name

	EC_GROUP_get_nid -> EC_GROUP_get_curve_name
	EC_GROUP_set_nid -> EC_GROUP_set_curve_name

("perl util/ck_errf.pl */*.c */*/*.c" still reports many more.)

Submitted by: Nils Larsch
Reviewed by: Geoff Thorpe

(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

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

Submitted by: Nils Larsch

Submitted by: Nils Larsch, Bodo Moeller

Submitted by: Nils Larsch

EC_GROUP_new_by_nid() should be enough.  This avoids a lot of
redundancy.

Submitted by: Nils Larsch

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>

Submitted by: Nils Larsch

This is not ECDSA specific, so it's now PEM_STRING_ECPRIVATEKEY etc.

Submitted by: Nils Larsch <nlarsch@compuserve.de>

(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

Submitted by: Nils Larsch
Reviewed by: Bodo Moeller

and make some appropriate changes to the EC library.

Submitted by: Nils Larsch