summaryrefslogtreecommitdiffstats
path: root/crypto/dsa
AgeCommit message (Collapse)Author
2024-07-12fix: drop DSA <=> dsaWithSHA1 aliasingRichard Levitte
For some reason, DSA has been aliased with dsaWithSHA1 for an eternity. They are not the same, though, and should never have been aliased in the first place. This was first discovered with 'openssl list': $ openssl list -signature-algorithms ... { 1.2.840.10040.4.1, 1.2.840.10040.4.3, 1.3.14.3.2.12, 1.3.14.3.2.13, 1.3.14.3.2.27, DSA, DSA-old, DSA-SHA, DSA-SHA1, DSA-SHA1-old, dsaEncryption, dsaEncryption-old, dsaWithSHA, dsaWithSHA1, dsaWithSHA1-old } @ default This isn't good at all, as it confuses the key algorithms signature function with a signature scheme that involves SHA1, and it makes it look like OpenSSL's providers offer a DSA-SHA1 implementation (which they currently do not do). Breaking this aliasing apart (i.e. aliasing DSA, DSA-old, dsaEncryption and dsaEncryption-old separately from the names that involve SHA) appears harmless as far as OpenSSL's test suite goes. Reviewed-by: Kurt Roeckx <kurt@roeckx.be> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/24828)
2024-05-16Check DSA parameters for excessive sizes before validatingTomas Mraz
This avoids overly long computation of various validation checks. Fixes CVE-2024-4603 Reviewed-by: Paul Dale <ppzgs1@gmail.com> Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Neil Horman <nhorman@openssl.org> Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/24346)
2024-05-02Rename BN_generate_dsa_nonce() to ossl_bn_gen_dsa_nonce_fixed_top()Tomas Mraz
And create a new BN_generate_dsa_nonce() that corrects the BIGNUM top. We do this to avoid leaking fixed top numbers via the public API. Also add a slight optimization in ossl_bn_gen_dsa_nonce_fixed_top() and make it LE/BE agnostic. Reviewed-by: Paul Dale <ppzgs1@gmail.com> Reviewed-by: Neil Horman <nhorman@openssl.org> (Merged from https://github.com/openssl/openssl/pull/24265)
2024-05-02Add ossl_bn_priv_rand_range_fixed_top() and use it for EC/DSATomas Mraz
Reviewed-by: Paul Dale <ppzgs1@gmail.com> Reviewed-by: Neil Horman <nhorman@openssl.org> (Merged from https://github.com/openssl/openssl/pull/24265)
2024-04-09Copyright year updatesRichard Levitte
Reviewed-by: Neil Horman <nhorman@openssl.org> Release: yes (cherry picked from commit 0ce7d1f355c1240653e320a3f6f8109c1f05f8c0) Reviewed-by: Hugo Landau <hlandau@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/24034)
2024-04-02Fix handling of NULL sig parameter in ECDSA_sign and similarBernd Edlinger
The problem is, that it almost works to pass sig=NULL to the ECDSA_sign, ECDSA_sign_ex and DSA_sign, to compute the necessary space for the resulting signature. But since the ECDSA signature is non-deterministic (except when ECDSA_sign_setup/ECDSA_sign_ex are used) the resulting length may be different when the API is called again. This can easily cause random memory corruption. Several internal APIs had the same issue, but since they are never called with sig=NULL, it is better to make them return an error in that case, instead of making the code more complex. Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/23529)
2024-03-30dsa/dsa_pmeth.c: Add the checks for the EVP_MD_CTX_get_size()Jiasheng Jiang
Add the checks for the return value of EVP_MD_CTX_get_size() before explicitly cast them to size_t to avoid the integer overflow. Fixes: 9d04f83410 ("Add DSA digest length checks.") Signed-off-by: Jiasheng Jiang <jiasheng@purdue.edu> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Todd Short <todd.short@me.com> Reviewed-by: Neil Horman <nhorman@openssl.org> (Merged from https://github.com/openssl/openssl/pull/23954)
2024-01-23Fix typosJakub Wilk
CLA: trivial Reviewed-by: Neil Horman <nhorman@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com> Reviewed-by: Hugo Landau <hlandau@openssl.org> (Merged from https://github.com/openssl/openssl/pull/23345)
2023-10-11DH_check_pub_key() should not fail when setting result codeTomas Mraz
The semantics of ossl_ffc_validate_public_key() and ossl_ffc_validate_public_key_partial() needs to be changed to not return error on non-fatal problems. Fixes #22287 Reviewed-by: Todd Short <todd.short@me.com> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22291)
2023-10-04Don't (re-)initialize the FFC_PARAMs in dh_init and dsa_initMatthias St. Pierre
The initialization was introduced in commit dc8de3e6f1ee and changes the behaviour of the `init` method for DSA and DH between 1.1.1 and 3.0, while the behaviour for RSA and EC_KEY remains unchanged. The initialization is not necessary in 3.x and master imho and breaks the use-case of intercepting the methods of an existing key. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22185)
2023-09-07Copyright year updatesMatt Caswell
Reviewed-by: Richard Levitte <levitte@openssl.org> Release: yes
2023-07-05fix memory allocation and reference counting issuesPauli
Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Kurt Roeckx <kurt@roeckx.be> (Merged from https://github.com/openssl/openssl/pull/21341)
2023-07-01dsa: update to structure based atomicsPauli
Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/21260)
2023-04-03FFC cleanupsslontis
Discovered during coverage testing. Remove unneccesary check when using ossl_dh_get0_params() and ossl_dsa_get0_params(). These point to addresses and can not fail for any existing calls. Make dsa keygen tests only available in the FIPS module - as they are not used in the default provider. Change ossl_ffc_set_digest() to return void as it cannot fail. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/20359)
2023-03-31Make DSA_sign() test for negative p,q,g values.slontis
Related to #20268 DSA_sign() assumes that the signature passed in is related to DSA_size(). If q is negative then DSA_size() actually fails and returns 0. A test that tries to allocate the signature buffer using DSA_size() and then pass it to DSA_sign() will then either. (1) Have a signature buffer of NULL. In this case it was leaking data returned via i2d_DSA_SIG. (2) Cause a seg fault because we created a buffer that was not large enough to hold the signature. As it already checked zero we also now check for negative values also. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Todd Short <todd.short@me.com> (Merged from https://github.com/openssl/openssl/pull/20553)
2023-03-03Coverity 1521557: Error handling issuesPauli
Check the return from DSA_set0_key and generate an error on failure. Technically a false positive since the function always returns success. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/20409)
2023-03-01Fix infinite loops in DSA sign code.slontis
Fixes #20268 Values such as q=1 or priv=0 caused infinite loops when calling DSA_sign() without these changes. There are other cases where bad domain parameters may have caused infinite loops where the retry counter has been added. The simpler case of priv=0 also hits this case. q=1 caused an infinite loop in the setup. The max retry value has been set to an arbitrary value of 8 (it is unlikely to ever do a single retry for valid values). The minimum q bits was set to an arbitrary value of 128 (160 is still used for legacy reasons when using 512 bit keys). Thanks @guidovranken for detecting this, and @davidben for his insightful analysis. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/20384)
2022-11-30Implement deterministic ECDSA sign (RFC6979)slontis
This PR is based off the contributions in PR #9223 by Jemmy1228. It has been modified and reworked to: (1) Work with providers (2) Support ECDSA and DSA (3) Add a KDF HMAC_DRBG implementation that shares code with the RAND HMAC_DRBG. A nonce_type is passed around inside the Signing API's, in order to support any future deterministic algorithms. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Hugo Landau <hlandau@openssl.org> (Merged from https://github.com/openssl/openssl/pull/18809)
2022-11-02dsa/ec: update pairwise tests to account for 140-3 IG 10.3.A additiocal ↵Pauli
comment 1 This mandates following SP 800-56A which, in 5.6.2.4, mandates a comparision against a newly calculated public key. Co-authored-by: Randall Steck <rsteck@thinqsoft.com> Co-authored-by: Mark J. Minnoch <mark@keypair.us> Co-authored-by: Steve Weymann <steve@keypair.us> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Tim Hudson <tjh@openssl.org> Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/19510)
2022-10-12crypto/*: Fix various typos, repeated words, align some spelling to LDP.FdaSilvaYY
partially revamped from #16712 - fall thru -> fall through - time stamp -> timestamp - host name -> hostname - ipv6 -> IPv6 Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/19059)
2022-10-05Stop raising ERR_R_MALLOC_FAILURE in most placesRichard Levitte
Since OPENSSL_malloc() and friends report ERR_R_MALLOC_FAILURE, and at least handle the file name and line number they are called from, there's no need to report ERR_R_MALLOC_FAILURE where they are called directly, or when SSLfatal() and RLAYERfatal() is used, the reason `ERR_R_MALLOC_FAILURE` is changed to `ERR_R_CRYPTO_LIB`. There were a number of places where `ERR_R_MALLOC_FAILURE` was reported even though it was a function from a different sub-system that was called. Those places are changed to report ERR_R_{lib}_LIB, where {lib} is the name of that sub-system. Some of them are tricky to get right, as we have a lot of functions that belong in the ASN1 sub-system, and all the `sk_` calls or from the CRYPTO sub-system. Some extra adaptation was necessary where there were custom OPENSSL_malloc() wrappers, and some bugs are fixed alongside these changes. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Hugo Landau <hlandau@openssl.org> (Merged from https://github.com/openssl/openssl/pull/19301)
2022-07-01Coverity: fix 1506297: negative returnsPauli
Reviewed-by: Shane Lontis <shane.lontis@oracle.com> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/18587)
2022-06-16Add sensitive memory clean in priv encodeKan
Fixed #18540 Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/18541)
2022-05-03Update copyright yearMatt Caswell
Reviewed-by: Tomas Mraz <tomas@openssl.org> Release: yes
2022-02-03Fix EVP todata and fromdata when used with selection of EVP_PKEY_PUBLIC_KEY.slontis
The private key for rsa, dsa, dh and ecx was being included when the selector was just the public key. (ec was working correctly). This matches the documented behaviour. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/17200)
2021-10-27add checks for the return values of BN_new(), sk_RSA_PRIME_INFO_new_reserve(),x2018
EVP_PKEY_CTX_new_from_pkey() and EVP_CIPHER_CTX_new(). Otherwise may result in memory errors. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/16892)
2021-07-29Update copyright yearMatt Caswell
Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/16176)
2021-07-23DSA/RSA_print(): Fix potential memory leakTomas Mraz
Fixes #10777 Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/16130)
2021-07-22Update our EVP_PKEY_METHODs to get low level keys via public APIsMatt Caswell
It is possible to call built-in EVP_PKEY_METHOD functions with a provided key. For example this might occur if a custom EVP_PKEY_METHOD is in use that wraps a built-in EVP_PKEY_METHOD. Therefore our EVP_PKEY_METHOD functions should not assume that we are using a legacy key. Instead we get the low level key using EVP_PKEY_get0_RSA() or other similar functions. This "does the right thing" if the key is actually provided. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/16118)
2021-07-07CRYPTO: Remove the check for built-in methods in the export_to functionRichard Levitte
That check was seen as necessary at the time, but other changes have been made since, so we now have better control on when we're handling legacy structures and methods, making it safe to run the export_to function on keys with foreign methods. The basic message is that foreign methods must set key structure values according to our standards no matter what, or not set them at all. This has really always been the case, but was harder to see at the time because of interaction with other bugs. Fixes #15927 Reviewed-by: Tim Hudson <tjh@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15996)
2021-07-06fips module header inclusion fine-tunningTomas Mraz
Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Tim Hudson <tjh@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15974)
2021-06-01Rename all getters to use get/get0 in nameTomas Mraz
For functions that exist in 1.1.1 provide a simple aliases via #define. Fixes #15236 Functions with OSSL_DECODER_, OSSL_ENCODER_, OSSL_STORE_LOADER_, EVP_KEYEXCH_, EVP_KEM_, EVP_ASYM_CIPHER_, EVP_SIGNATURE_, EVP_KEYMGMT_, EVP_RAND_, EVP_MAC_, EVP_KDF_, EVP_PKEY_, EVP_MD_, and EVP_CIPHER_ prefixes are renamed. Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15405)
2021-05-29add zero strenght arguments to BN and RAND RNG callsPauli
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15513)
2021-05-26err: rename err_load_xxx_strings_int functionsPauli
The new names are ossl_err_load_xxx_strings. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15446)
2021-05-20Modify EVP_PKEY_ASN1_METHOD's export_to function to take an importerRichard Levitte
We previously took an EVP_KEYMGMT pointer, but now found it necessary to use a different import function in some cases. Since that's the only thing we use from EVP_KEYMGMT, we might as well pass the import function directly, allowing for some flexibility in how export_to is used. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15293)
2021-04-22Update copyright yearMatt Caswell
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14986)
2021-04-21dsa: remove unused macroPauli
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14881)
2021-04-19Detect low-level engine and app method based keysTomas Mraz
The low-level engine and app method based keys have to be treated as foreign and must be used with old legacy pmeths. Fixes #14632 Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14859)
2021-04-15Do not allow creating empty RSA keys by duplicationTomas Mraz
Also avoid crashing in rsa_get_params on empty keys. Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/14793)
2021-04-15Add selection support to the provider keymgmt_dup functionTomas Mraz
Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/14793)
2021-04-15Implement provider-side keymgmt_dup functionTomas Mraz
To avoid mutating key data add OSSL_FUNC_KEYMGMT_DUP function to the provider API and implement it for all asym-key key managements. Use it when copying everything to an empty EVP_PKEY which is the case with EVP_PKEY_dup(). Fixes #14658 Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/14793)
2021-04-12Replace OSSL_PARAM_BLD_free_params() with OSSL_PARAM_free().Shane Lontis
Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14785)
2021-04-01DSA_generate_parameters_ex: use the old method for all small keysTomas Mraz
Fixes #14733 Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14744)
2021-03-28Implement EVP_PKEY_dup() functionTomas Mraz
Fixes #14501 Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14624)
2021-03-19PROV: Add type specific PKCS#8 decoding to the DER->key decodersRichard Levitte
This required refactoring a number of functions from the diverse EVP_PKEY_ASN1_METHOD implementations to become shared backend functions. It also meant modifying a few of them to return pointers to our internal RSA / DSA/ DH / EC_KEY, ... structures instead of manipulating an EVP_PKEY pointer directly, letting the caller do the latter. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14314)
2021-03-18Add ossl_encode symbolsShane Lontis
Partial fix for #12964 Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14473)
2021-03-18Add ossl_asn1 symbolsShane Lontis
Partial fix for #12964 Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14473)
2021-03-18Fix external symbols for crypto_*Shane Lontis
Partial fix for #12964 This adds ossl_ names for symbols related to crypto_* Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14473)
2021-03-11Update copyright yearMatt Caswell
Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14512)
2021-02-26Fix external symbols related to dsa keysShane Lontis
Partial fix for #12964 This adds ossl_ names for the following symbols: dsa_check_pairwise, dsa_check_params, dsa_check_priv_key, dsa_check_pub_key, dsa_check_pub_key_partial, dsa_do_sign_int, dsa_ffc_params_fromdata, dsa_generate_ffc_parameters, dsa_generate_public_key, dsa_get0_params, dsa_key_fromdata, dsa_new_with_ctx, dsa_pkey_method, dsa_sign_int Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14231)
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-07 05:14:33 +0000