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2023-11-06Fix conflicts between DH check flags and FFC check flagsRichard Levitte
There are comments in include/openssl/dh.h and include/internal/ffc.h that they must be aligned with each other, and yet, clashes have been introduced. The simplest fix is to move the offending FFC flags out of the way, as they are indeed internal and shouldn't affect any public interface, apart from those that are aligned with the DH flags, which are public. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Hugo Landau <hlandau@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22518) (cherry picked from commit 3629ce9c4cb638d9458d8febd21659920903a749)
2023-02-07Update copyright yearRichard Levitte
Reviewed-by: Tomas Mraz <tomas@openssl.org> Release: yes
2023-02-03Fix NULL deference when validating FFC public key.slontis
Fixes CVE-2023-0217 When attempting to do a BN_Copy of params->p there was no NULL check. Since BN_copy does not check for NULL this is a NULL reference. As an aside BN_cmp() does do a NULL check, so there are other checks that fail because a NULL is passed. A more general check for NULL params has been added for both FFC public and private key validation instead. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org>
2022-10-11Update copyright yearMatt Caswell
Reviewed-by: Richard Levitte <levitte@openssl.org> Release: yes (Merged from https://github.com/openssl/openssl/pull/19382)
2022-07-19For known safe primes use the minimum key length according to RFC 7919Tomas Mraz
Longer private key sizes unnecessarily raise the cycles needed to compute the shared secret without any increase of the real security. This fixes a regression from 1.1.1 where these shorter keys were generated for the known safe primes. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Kurt Roeckx <kurt@roeckx.be> (Merged from https://github.com/openssl/openssl/pull/18793)
2021-05-13Export/import flags for FFC params changed to seperate fields.Shane Lontis
An extra field got added to the ffc flags related to FIPS-186-2 key validation, but this field was not handled by the export/import since the flags were done as string combinations. To keep this consistent with other object flags they are now passed as seperate OSSL_PARAM fields. Fixes 'no-cached-fetch' build which uses export/import. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15210)
2021-02-18Update copyright yearMatt Caswell
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14235)
2021-02-18dsa_check: Perform simple parameter check if seed is not availableTomas Mraz
Added primality check on p and q in the ossl_ffc_params_simple_validate(). Checking for p and q sizes in the default provider is made more lenient. Added two testcases for invalid parameters. Fixes #13950 Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/14148)
2021-02-10include/internal: add a few missing #pragma once directivesFdaSilvaYY
Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> (Merged from https://github.com/openssl/openssl/pull/14096)
2020-12-16EVP_PKEY & DH: Make DH EVP_PKEY_CTX parameter ctrls / setters more availableRichard Levitte
EVP_PKEY_CTX_set_dh_ functions were only available when DH was enabled ('no-dsa' not configured). However, that makes it impossible to use these functions with an engine or a provider that happens to implement DH. This change solves that problem by shuffling these functions to more appropriate places. By consequence, there are a number of places where we can remove the check of OPENSSL_NO_DH. This requires some re-arrangements of internal tables to translate between numeric identities and names. Partially fixes #13550 Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/13589)
2020-10-15Rename OPENSSL_CTX prefix to OSSL_LIB_CTXDr. Matthias St. Pierre
Many of the new types introduced by OpenSSL 3.0 have an OSSL_ prefix, e.g., OSSL_CALLBACK, OSSL_PARAM, OSSL_ALGORITHM, OSSL_SERIALIZER. The OPENSSL_CTX type stands out a little by using a different prefix. For consistency reasons, this type is renamed to OSSL_LIB_CTX. Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/12621)
2020-10-06ffc: add _ossl to exported but internal functionsPauli
The functions updated are: ffc_generate_private_key, ffc_named_group_from_uid, ffc_named_group_to_uid, ffc_params_FIPS186_2_gen_verify, ffc_params_FIPS186_2_generate, ffc_params_FIPS186_2_validate, ffc_params_FIPS186_4_gen_verify, ffc_params_FIPS186_4_generate, ffc_params_FIPS186_4_validate, ffc_params_cleanup, ffc_params_cmp, ffc_params_copy, ffc_params_enable_flags, ffc_params_flags_from_name, ffc_params_flags_to_name, ffc_params_fromdata, ffc_params_get0_pqg, ffc_params_get_validate_params, ffc_params_init, ffc_params_print, ffc_params_set0_j, ffc_params_set0_pqg, ffc_params_set_flags, ffc_params_set_gindex, ffc_params_set_h, ffc_params_set_pcounter, ffc_params_set_seed, ffc_params_set_validate_params, ffc_params_simple_validate, ffc_params_todata, ffc_params_validate_unverifiable_g, ffc_set_digest, ffc_set_group_pqg, ffc_validate_private_key, ffc_validate_public_key and ffc_validate_public_key_partial. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13041)
2020-08-17Fix DSA/DH so that legacy keys can still be generated by the default providerShane Lontis
Fixes #12589 The 'type' parameter needed to be propagated to the ffc params during keygen, so that the simple validation of params done during keygen can handle legacy keys for the default provider. The fips provider ignores this change and only allows fips186-4 approved sizes. Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com> (Merged from https://github.com/openssl/openssl/pull/12623)
2020-07-09Add multiple fixes for ffc key generation using invalid p,q,g parameters.Shane Lontis
Fixes #11864 - The dsa keygen assumed valid p, q, g values were being passed. If this is not correct then it is possible that dsa keygen can either hang or segfault. The fix was to do a partial validation of p, q, and g inside the keygen. - Fixed a potential double free in the dsa keypair test in the case when in failed (It should never fail!). It freed internal object members without setting them to NULL. - Changed the FFC key validation to accept 1024 bit keys in non fips mode. - Added tests that use both the default provider & fips provider to test these cases. Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com> (Merged from https://github.com/openssl/openssl/pull/12176)
2020-06-17Add ACVP fips module testsShane Lontis
For FIPS validation purposes - Automated Cryptographic Validation Protocol (ACVP) tests need to be performed. (See https://github.com/usnistgov/ACVP). These tests are very similiar to the old CAVS tests. This PR uses a hardwired subset of these test vectors to perform similiar operations, to show the usage and prove that the API's are able to perform the required operations. It may also help with communication with the lab (i.e- The lab could add a test here to show a unworking use case - which we can then address). The EVP layer performs these tests instead of calling lower level API's as was done in the old FOM. Some of these tests require access to internals that are not normally allowed/required. The config option 'acvp_tests' (enabled by default) has been added so that this access may be removed. The mechanism has been implemented as additional OSSL_PARAM values that can be set and get. A callback mechanism did not seem to add any additional benefit. These params will not be added to the gettables lists. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11572)
2020-04-28Rename FIPS_MODE to FIPS_MODULERichard Levitte
This macro is used to determine if certain pieces of code should become part of the FIPS module or not. The old name was confusing. Fixes #11538 Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/11539)
2020-04-20Fix DH_get_nid() so that it does not cache values.Shane Lontis
DH_set0_pqg() is now responsible for caching the nid, q and length. DH with or without named safe prime groups now default to using the maximum private key length (BN_num_bits(q) - 1) when generating a DH private key. The code is now shared between fips and non fips mode for DH key generation. The OSSL_PKEY_PARAM_DH_PRIV_LEN parameter can be used during keygen to override the maximum private key length to be in the range (2 * strength ... bits(q) - 1). Where the strength depends on the length of p. Added q = (p - 1) / 2 safe prime BIGNUMS so that the code is data driven (To simplify adding new names). The BIGNUMS were code generated. Fix error in documented return value for DH_get_nid Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11562)
2020-04-16Add DH keygen to providersShane Lontis
Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11332)
2020-04-15Add DSA keygen to providerShane Lontis
Moved some shared FFC code into the FFC files. Added extra paramgen parameters for seed, gindex. Fixed bug in ossl_prov util to print bignums. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11303)
2020-03-25EVP: Implement support for key downgrading in backendsRichard Levitte
Downgrading EVP_PKEYs from containing provider side internal keys to containing legacy keys demands support in the EVP_PKEY_ASN1_METHOD. This became a bit elaborate because the code would be almost exactly the same as the import functions int EVP_KEYMGMT. Therefore, we end up moving most of the code to common backend support files that can be used both by legacy backend code and by our providers. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11375)
2020-02-16Add FFC param/key validationShane Lontis
Embed libctx in dsa and dh objects and cleanup internal methods to not pass libctx (This makes it consistent with the rsa changes) Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/10910)
2020-02-07Fix no-dhMatt Caswell
Don't use DH specific macros that might need to be used in a no-dh build. Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de> (Merged from https://github.com/openssl/openssl/pull/11030)
2020-02-06Add FFC param/key generationShane Lontis
Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/10909)
2020-01-31Add support for DH 'modp' group parameters (RFC 3526)Shane Lontis
Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/10897)
2020-01-24Modify DSA and DH keys to use a shared FFC_PARAMS structShane Lontis
This is required in order to share code for FIPS related parameter generation and validation routinues. Note the 'counter' field is now stored as a integer (as that is the form required for generation/validation functions). Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/10860)