Just as for DH, DSA and RSA, this gives the engine associated with the
key.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2960)
extra spacing and 80 cols
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1366)
We should only copy parameters and keys if the group is set. Otherwise
they don't really make any sense. Previously we copied the private key
regardless of whether the group was set...but if it wasn't a NULL ptr
deref could occur. It's unclear whether we could ever get into that
situation, but since we were already checking it for the public key we
should be consistent.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Fix a bug introduced by 6903e2e7e9 (Extended EC_METHOD customisation
support., 2016-02-01). key->meth->set_private() is wrongly called where
it should call key->group->meth->set_private().
PR#4517
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Stephen Henson <steve@openssl.org>
The private key is a scalar and should be sized by the order, not the
degree. See RFC 5915.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
Don't have #error statements in header files, but instead wrap
the contents of that file in #ifndef OPENSSL_NO_xxx
This means it is now always safe to include the header file.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Instead of overriding a default operation move default operation to a
separate function which is then explicitly included in any EC_METHOD
that uses it.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Add a flag to EC_METHOD for curves which do not support signing.
New function EC_KEY_can_sign() returns 1 is key can be used for signing.
Return an explicit error is an attempt is made to sign with
no signing curves.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
Extract compression form in EC_KEY_oct2key() instead of manually in the
ASN.1 code. For custom curves do not assume the initial octet is the
compression form: it isn't for X25519 et al.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
Add support for optional overrides of various private key operations
in EC_METHOD.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
In EC_KEY_priv2buf(), check for pbuf sanity.
If invoked with NULL, gracefully returns the key length.
Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Simplifies calling code. Also fixed up any !ptr tests that were
nearby, turning them into NULL tests.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Add new function EC_KEY_priv2buf() to allocated and encode private
key octet in one call. Update and simplify ASN.1 and print routines.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
New functions EC_KEY_oct2priv and EC_KEY_priv2oct. These are private key
equivalents of EC_POINT_oct2point and EC_POINT_point2oct which convert
between the private key octet format and EC_KEY.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
New functions to return internal pointer for order and cofactor. This
avoids the need to allocate a new BIGNUM which to copy the value to.
Simplify code to use new functions.
Reviewed-by: Rich Salz <rsalz@openssl.org>
This was done by the following
find . -name '*.[ch]' | /tmp/pl
where /tmp/pl is the following three-line script:
print unless $. == 1 && m@/\* .*\.[ch] \*/@;
close ARGV if eof; # Close file to reset $.
And then some hand-editing of other files.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Add CRYPTO_EX_DATA add EndC_KEY_[gs]et_method, From Roumen Petrov.
Had to add various exdata calls to init/copy/free the exdata.
Had to remove const from some EC functions because exdata isn't
const-correct. :(
Also remove EC_EXTRA_DATA and use a union to hold the possible
pre-computed values and an enum to tell which value is in the
union. (Rich Salz)
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
New functions EC_POINT_point2buf and EC_KEY_key2buf which encode
a point and allocate a buffer in one call.
New function EC_KEY_oct2key() which sets public key in an EC_KEY
structure from an encoded point.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Add set_group, set_public and set_private methods. An EC_KEY_METHOD can use
these to perform any appropriate operation when the key components are set,
such as caching data in some more convenient ENGINE specific format or
returning an error if the parameters are invalid or the operation is
not supported.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Add keygen to EC_KEY_METHOD. Redirect EC_KEY_generate_key through
method and set the current EC key generation function as the default.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Add EC_KEY_METHOD. This is part of the EC revision and will make EC behave
more like other algorithms. Specifically:
EC_KEY_METHOD is part of EC_KEY.
It is part of ENGINE.
Default or key specific implementations can be provided to redirect some
or all operations.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Much related/similar work also done by
Ivan Nestlerode <ivan.nestlerode@sonos.com>
+Replace FILE BIO's with dummy ops that fail.
+Include <stdio.h> for sscanf() even with no-stdio (since the declaration
is there). We rely on sscanf() to parse the OPENSSL_ia32cap environment
variable, since it can be larger than a 'long'. And we don't rely on the
availability of strtoull().
+Remove OPENSSL_stderr(); not used.
+Make OPENSSL_showfatal() do nothing (currently without stdio there's
nothing we can do).
+Remove file-based functionality from ssl/. The function
prototypes were already gone, but not the functions themselves.
+Remove unviable conf functionality via SYS_UEFI
+Add fallback definition of BUFSIZ.
+Remove functions taking FILE * from header files.
+Add missing DECLARE_PEM_write_fp_const
+Disable X509_LOOKUP_hash_dir(). X509_LOOKUP_file() was already compiled out,
so remove its prototype.
+Use OPENSSL_showfatal() in CRYPTO_destroy_dynlockid().
+Eliminate SRP_VBASE_init() and supporting functions. Users will need to
build the verifier manually instead.
+Eliminate compiler warning for unused do_pk8pkey_fp().
+Disable TEST_ENG_OPENSSL_PKEY.
+Disable GOST engine as is uses [f]printf all over the place.
+Eliminate compiler warning for unused send_fp_chars().
Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
EC_KEY_set_public_key_affine_coordinates was using some variables that only
apply if OPENSSL_NO_EC2M is not defined.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
The function EC_POINT_is_on_curve does not return a boolean value.
It returns 1 if the point is on the curve, 0 if it is not, and -1
on error. Many usages within OpenSSL were incorrectly using this
function and therefore not correctly handling error conditions.
With thanks to the Open Crypto Audit Project for reporting this issue.
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
For a local variable:
TYPE *p;
Allocations like this are "risky":
p = OPENSSL_malloc(sizeof(TYPE));
if the type of p changes, and the malloc call isn't updated, you
could get memory corruption. Instead do this:
p = OPENSSL_malloc(sizeof(*p));
Also fixed a few memset() calls that I noticed while doing this.
Reviewed-by: Richard Levitte <levitte@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>
Add OPENSSL_clear_free which merges cleanse and free.
(Names was picked to be similar to BN_clear_free, etc.)
Removed OPENSSL_freeFunc macro.
Fixed the small simple ones that are left:
CRYPTO_free CRYPTO_free_locked OPENSSL_free_locked
Reviewed-by: Richard Levitte <levitte@openssl.org>
This change updates 8a99cb29 to make the generation of (EC)DSA nonces
using the message digest the default. It also reverts the changes to
(EC)DSA_METHOD structure.
In addition to making it the default, removing the flag from EC_KEY
means that FIPS modules will no longer have an ABI mismatch.
This change adds the option to calculate (EC)DSA nonces by hashing the
message and private key along with entropy to avoid leaking the private
key if the PRNG fails.
Move compression, point2oct and oct2point functions into separate files.
Add a flags field to EC_METHOD.
Add a flag EC_FLAGS_DEFAULT_OCT to use the default compession and oct
functions (all existing methods do this). This removes dependencies from
EC_METHOD while keeping original functionality.
seed to: this doesn't introduce any binary compatibility issues as the
function is only used internally.
The seed output is needed for FIPS 140-2 algorithm testing: the functionality
used to be in DSA_generate_parameters_ex() but was removed in OpenSSL 1.0.0
- hide the EC_KEY structure definition in ec_lcl.c + add
some functions to use/access the EC_KEY fields
- change the way how method specific data (ecdsa/ecdh) is
attached to a EC_KEY
- add ECDSA_sign_ex and ECDSA_do_sign_ex functions with
additional parameters for pre-computed values
- rebuild libeay.num from 0.9.7
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>
Rich Salz
Richard Levitte
Kurt Roeckx
FdaSilvaYY
Richard J. Moore
Steven Valdez
Matt Caswell
Kazuki Yamaguchi
David Benjamin
Alessandro Ghedini
Dr. Stephen Henson
Rich Salz
J Mohan Rao Arisankala
Billy Brumley
Ben Laurie
David Woodhouse
Adam Langley
Bodo Möller
Andy Polyakov
Nils Larsch