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* Fix previous.jsing2023-03-081-5/+5
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* reduce number of tests in bn_rand_interval.tb2023-03-081-2/+2
| | | | | This is only testing basic functionality anyway, so 10000 tests are more than enough.
* bn_isqrt: reduce number of tests to 100.tb2023-03-081-2/+2
| | | | | | The runtime is roughly quadratic in N_TESTS. While it only takes 1-2s on modern machines, this test takes a long time on slow machines. A reduction of runtime by a factor of ~16 is significant.
* Process up to four test vector files concurrently.jsing2023-03-081-4/+30
| | | | | | | | | This avoids having a slow down when processing test vector files that only have a single group. Note that the processing of test vector files is in turn going to be rate limited by the number of concurrent test groups, which means we do not need variable limits for vectors. Reduces a Wycheproof regress run down to ~8 seconds on an Apple M1.
* Always clear EC groups and points on free.jsing2023-03-0810-114/+35
| | | | | | | | | | Rather than sometimes clearing, turn the free functions into ones that always clear (as we've done elsewhere). Turn the EC_GROUP_clear_free() and EC_POINT_clear_free() functions into wrappers that call the *_free() version. Do similar for the EC_METHOD implementations, removing the group_clear_finish() and point_clear_finish() hooks in the process. ok tb@
* Run test groups concurrently.jsing2023-03-081-144/+151
| | | | | | | Add a basic test coordinator, that allows for Wycheproof test groups to be run concurrently. This can be further improved (especially for vectors that have limited test groups), however it already reduces the regress duration by about half on an Apple M1.
* zap more audit remnantstb2023-03-081-6/+1
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* Stop trying to use EC_GFp_nist_method().jsing2023-03-081-76/+20
| | | | | | | | | | | | | | | | | | | | | | | | Currently, if compiled without OPENSSL_BN_ASM_MONT, EC_GROUP_new_curve_GFp() tries to use EC_GFp_nist_method(), falling back to EC_GFp_mont_method() if it is not a NIST curve (if OPENSSL_BN_ASM_MONT is defined we use EC_GFp_mont_method() unconditionally). Now that we have a reasonable non-assembly Montgomery implementation, the performance of EC_GFp_nist_method() is either similar or slower than EC_GFp_mont_method() (the exception being P-521, however if you're using that you're not doing it for performance reasons anyway). The EC_GFp_nist_method() uses rather scary BN NIST code (which would probably already be removed, if not for the BN and EC public APIs), it uses code paths that are currently less constant time, and there is additional overhead in checking to see if the curve is actually supported. Stop trying to use EC_GFp_nist_method() and unconditionally use EC_GFp_mont_method() in all cases. While here, factor out the common setup code and call it from both EC_GROUP_new_curve_GFp() and EC_GROUP_new_curve_GF2m(). ok beck@ tb@
* Remove acceptable audit.jsing2023-03-081-94/+1
| | | | | | | This code would need changes to be safe to use concurrently - remove it since it is somewhat incomplete and needs reworking. Requested by tb@
* Remove EC_FLAGS_DEFAULT_OCT.jsing2023-03-086-79/+27
| | | | | | | | | | | | | | The EC code has an amazing array of function pointer hooks, such that a method can hook into almost any operation... and then there is the EC_FLAGS_DEFAULT_OCT flag, which adds a bunch of complex code and #ifdef so you can avoid setting three of those function pointers! Remove EC_FLAGS_DEFAULT_OCT, the now unused flags field from EC_METHOD, along with the various code that was wrapped in EC_FLAGS_DEFAULT_OCT, setting the three function pointers that need to be set in each of the EC_METHODs. ok beck@ tb@
* Improve bn_montgomery_multiply_words().jsing2023-03-071-10/+13
| | | | | | | | | | | | | Rather than calling bn_mul_add_words() twice - once to multiply and once to reduce - perform the multiplication and reduction in a single pass using bn_mulw_addw_addw() directly. Also simplify the addition of the resulting carries, which in turn allows us to avoid zeroing the top half of the temporary words. This provides a ~20-25% performance improvement for RSA operations on aarch64. ok tb@
* Slightly rework bn_mulw_addtw().jsing2023-03-071-5/+3
| | | | | | | | | Call bn_mulw_addw() rather than doing bn_mulw() follow by bn_addw(). This simplifies the code slightly, plus on some platforms bn_mulw_addw() can be optimised (and bn_mulw_addtw() will then benefit from such an optimisation). ok tb@
* Call BN_free() instead of BN_clear_free().jsing2023-03-0715-79/+79
| | | | | | | BN_clear_free() is a wrapper that calls BN_free() - call BN_free() directly instead. ok tb@
* Fix another return value check for CMS_SharedInfo_encode()tb2023-03-071-2/+2
| | | | This should have been included in a previous diff/commit...
* Limit bn_mul_mont() usage to sizes less than or equal to 8192 bits.jsing2023-03-071-1/+9
| | | | | | | | | | | | The assembly bn_mul_mont() implementations effectively use alloca() to allocate space for computation (at up to 8x the input size), without any limitation. This means that sufficiently large inputs lead to the stack being blown. Prevent this by using the C based implementation instead. Thanks to Jiayi Lin <jlin139 at asu dot edu> for reporting this to us. ok beck@ tb@
* Implement bn_montgomery_multiply()jsing2023-03-071-3/+86
| | | | | | | | | | | Provide a constant-time-style Montgomery multiplication implementation. Use this in place of the assembly bn_mul_mont() on platforms that either do not have an assembly implementation or have not compiled it in. Also use this as the fallback version for bn_mul_mont(), rather than falling back to a non-constant time implementation. ok beck@ tb@
* Refactor BN_mod_mul_montgomery().jsing2023-03-071-20/+48
| | | | | | | | | | Pull out the simplistic implementation (using BN_mul() or BN_sqr()) into a bn_mod_mul_montgomery_simple() function. Provide bn_mod_mul_montgomery() with an implementation that changes depending on if the assembly bn_mul_mont() is available or not. Turn BN_mod_mul_montgomery() and BN_to_montgomery() into callers of bn_mod_mul_montgomery(). ok beck@ tb@
* Make order of pub_key and priv_key the same everywheretb2023-03-071-6/+6
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* Fix OpenSSL version in HISTORY sectiontb2023-03-071-3/+3
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* Delete unused and unsafe bn_mul_mont() example code.jsing2023-03-071-54/+1
| | | | | | This came from bn_asm.c and did not even compile until recently. ok beck@ tb@
* Fix comment for bn_mul2_mulw_addtw()jsing2023-03-071-5/+5
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* Move EC_GFp_simple_method() to the bottom of the file.jsing2023-03-071-75/+51
| | | | | | | | Most of the implemeentation functions for EC_GFp_simple_method() are reused by other code, hence they cannot be made static. However, this keeps the pattern consistent. ok tb@
* Basic cleanup in asn1pars.ctb2023-03-071-26/+16
| | | | Drop extra parentheses, unwrap some lines, compare pointers against NULL.
* Use static functions for EC_GF2m_simple_method() implementation.jsing2023-03-072-131/+74
| | | | | | | Move the EC_METHOD to the bottom of the file, which allows implementation functions to become static. Remove unneeded prototypes. ok tb@
* Use static functions for EC_GFp_nist_method() implementation.jsing2023-03-072-63/+53
| | | | | | | Move the EC_METHOD to the bottom of the file, which allows implementation functions to become static. Remove unneeded prototypes. ok tb@
* Use static functions for EC_GFp_mont_method() implementation.jsing2023-03-072-86/+62
| | | | | | | Move the EC_METHOD to the bottom of the file, which allows all implementation functions to become static. Remove unneeded prototypes. ok tb@
* Fix formatting of comments.jsing2023-03-071-14/+27
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* Consolidate clear code for EC_GFp_mont_method.jsing2023-03-071-23/+18
| | | | | | | Use a fang dangled thing (known as a function) to avoid duplicating the same code in five places. ok tb@
* Clean up ndef_{prefix,suffix}_free()tb2023-03-061-8/+13
| | | | | | | | These functions are rather similar, so there's no need for the code to be wildly different. Add a missing NULL check to ndef_prefix_free() since that will be needed in a subsequent commit. ok jsing
* Rename struct ${app}_config to plain cfgtb2023-03-0644-3260/+3260
| | | | | | | | | All the structs are static and we need to reach into them many times. Having a shorter name is more concise and results in less visual clutter. It also avoids many overlong lines and we will be able to get rid of some unfortunate line wrapping down the road. Discussed with jsing
* Document ECDSA_SIG_get0_{r,s}()tb2023-03-061-2/+35
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* Document DH_get0_* for individual DH members.tb2023-03-061-3/+78
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* Document DSA_get0_* for individual DSA memberstb2023-03-061-3/+77
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* Document RSA_get0_* for individual RSA members.tb2023-03-061-3/+106
| | | | | | Loosely based on OpenSSL commit 6692ff77. Prodded by job
* Rework asn1_item_flags_i2d()tb2023-03-061-19/+20
| | | | | | | | Flip the logic of NULL checks on out and *out to unindent, use calloc() instead of malloc() and check on assign. Also drop the newly added len2 again, it isn't needed. ok jsing
* Fix some return checks in ecdh_cms_encrypt()tb2023-03-061-3/+3
| | | | | | | | | | | | i2d functions return <= 0 on error, so check for that instead of == 0. The issue with CMS_SharedInfo_encode() was found by Niels Dossche. OpenSSL review overlooked that they had turned penclen into a size_t. In principle the issue with i2d_X509_ALGOR() is purely cosmetic. Why do a strange check when there is an idiomatic check? Then again this is CMS... ok jsing
* Fix incorrect RSA_public_decrypt() return checktb2023-03-061-4/+8
| | | | | | | | | | RSA_public_decrypt() returns <= 0 on error. Assigning to a size_t and checking for == 0 is not the right thing to do here. Neither is blindly turning the check into <= 0... Found by Niels Dossche ok jsing
* ASN.1 enc: check ASN1_item_ex_i2d() consistencytb2023-03-061-3/+8
| | | | | | | | | | | | | The i2d API design is: call a function first with a pointer to NULL, get the length, allocate a buffer, call the function passing the buffer in. Both calls should be checked since ther are still internal allocations. At the heart of ASN.1 encoding, this idiom is used and the second call is assumed to succeed after the length was determined. This is far from guaranteed. Check that the second call returns the same length and error otherwise. ok jsing
* Remove #ifndef OPENSSL_EC_NISTP_64_GCC_128.jsing2023-03-051-5/+1
| | | | | | This was presumably intended to be OPENSSL_NO_EC_NISTP_64_GCC_128, however generic code has ended up inside the ifdef (and none of the NISTP code or prototypes now remain).
* Remove ec_GFp_nistp.* prototypes.jsing2023-03-051-40/+1
| | | | This code has been deleted, however the prototypes managed to hang around.
* Remove duplicate function prototypes.jsing2023-03-051-8/+1
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* openssl: make all config structs statictb2023-03-0511-22/+22
| | | | | These are per-app, so per-file. Most of them already are static, adjust the rest of them.
* openssl/cms: zap some trailing whitespacetb2023-03-051-3/+3
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* openssl enc doesn't really support AEAD ciphers and XTS modetb2023-03-041-2/+30
| | | | | | | | | | Do not display such ciphers in the usage display and error out if they are given. As pointed out by Pauli Dale, the current situation is confusing. Fixes GH issues #786 and #819 ok jsing
* Simplify the consistency checks in old_dsa_priv_decode()tb2023-03-041-24/+13
| | | | | | | | We have long had expensive checks for DSA domain parameters in old_dsa_priv_decode(). These were implemented in a more complicated way than necesary. ok beck jsing
* Enforce a lower bound of of EC group order so 80 bits for ECDSAtb2023-03-041-2/+7
| | | | | | | | This makes sure that the elliptic curve is not completely stupid. This is conservative enough: the smallest named groups that we support have an order of 112 bits. ok beck jsing
* Cap the number of iterations in ECDSA signingtb2023-03-041-1/+15
| | | | | | | | | | | | ECDSA is essentially the same thing as DSA, except that it is slightly less stupid. Signing specifies an infinite loop, which is only possible with arbitrary ECDSA domain parameters. Fortunately, most use of ECDSA in the wild is based on well-known groups, so it is known a priori that the loop is not infinite. Still, infinite loops are bad. A retry is unlikely, 32 retries have a probability of ~2^-8000. So it's pretty safe to error out. ok beck jsing
* Cap the number of iterations in DSA signingtb2023-03-041-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DSA standard specifies an infinite loop: if either r or s is zero in the signature calculation, a new random number k shall be generated and the whole thing is to be redone. The rationale is that, as the standard puts it, "[i]t is extremely unlikely that r = 0 or s = 0 if signatures are generated properly." The problem is... There is no cheap way to know that the DSA domain parameters we are handed are actually DSA domain parameters, so even if all our calculations are carefully done to do all the checks needed, we cannot know if we generate the signatures properly. For this we would need to do two primality checks as well as various congruences and divisibility properties. Doing this easily leads to DoS, so nobody does it. Unfortunately, it is relatively easy to generate parameters that pass all sorts of sanity checks and will always compute s = 0 since g is nilpotent. Thus, as unlikely as it is, if we are in the mathematical model, in practice it is very possible to ensure that s = 0. Read David Benjamin's glorious commit message for more information https://boringssl-review.googlesource.com/c/boringssl/+/57228 Thanks to Guido Vranken for reporting this issue, also thanks to Hanno Boeck who apparently found and reported similar problems earlier. ok beck jsing
* Small readability tweak in old_dsa_priv_decode()tb2023-03-041-3/+3
| | | | | | Explicitly check against NULL and turn early return into goto err. ok beck jsing
* Call dsa_check_keys() before signing or verifyingtb2023-03-041-23/+9
| | | | | | | | We already had some checks on both sides, but they were less precise and differed between the functions. The code here is messy enough, so any simplification is helpful... ok beck jsing
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