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path: root/src/lib/libssl/ssl_sigalgs.c (follow)
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* Don't push the error stack in ssl_sigalg_select()beck2024-07-091-2/+1
| | | | | | | Doing so breaks certificate selection if a TLS 1.3 client does not support EC certs, and needs to fall back to RSA. ok tb@
* Remove GOST and STREEBOG support from libssl.beck2024-02-031-27/+1
| | | | | | | | | | | | | | | | | | This version of GOST is old and not anywhere close to compliant with modern GOST standards. It is also very intrusive in libssl and makes a mess everywhere. Efforts to entice a suitably minded anyone to care about it have been unsuccessful. At this point it is probably best to remove this, and if someone ever showed up who truly needed a working version, it should be a clean implementation from scratch, and have it use something closer to the typical API in libcrypto so it would integrate less painfully here. This removes it from libssl in preparation for it's removal from libcrypto with a future major bump ok tb@
* Make internal header file names consistenttb2022-11-261-2/+2
| | | | | | | | | | | | | | | | Libcrypto currently has a mess of *_lcl.h, *_locl.h, and *_local.h names used for internal headers. Move all these headers we inherited from OpenSSL to *_local.h, reserving the name *_internal.h for our own code. Similarly, move dtls_locl.h and ssl_locl.h to dtls_local and ssl_local.h. constant_time_locl.h is moved to constant_time.h since it's special. Adjust all .c files in libcrypto, libssl and regress. The diff is mechanical with the exception of tls13_quic.c, where #include <ssl_locl.h> was fixed manually. discussed with jsing, no objection bcook
* Stop using ssl{_ctx,}_security() outside of ssl_seclevel.ctb2022-07-021-5/+2
| | | | | | | | | The API is ugly and we can easily abstract it away. The SSL_SECOP_* stuff is now confined into ssl_seclevel.c and the rest of the library can make use of the more straightforward wrappers, which makes it a lot easier on the eyes. ok beck jsing
* Rename uses 'curve' to 'group' and rework tls1 group API.tb2022-07-021-7/+7
| | | | | | | | | | This reworks various tls1_ curve APIs to indicate success via a boolean return value and move the output to an out parameter. This makes the caller code easier and more consistent. Based on a suggestion by jsing ok jsing
* Check sigalg security level when selecting them.tb2022-06-291-1/+4
| | | | ok beck jsing
* Check the security bits of the sigalgs' pkeytb2022-06-291-1/+7
| | | | ok beck jsing
* Check the security level when building sigalgstb2022-06-291-4/+11
| | | | ok beck jsing
* Annotate sigalgs with their security level.tb2022-06-291-1/+21
| | | | ok beck jsing
* Bye bye S3I.jsing2022-02-051-7/+7
| | | | | | | | S3I has served us well, however now that libssl is fully opaque it is time to say goodbye. Aside from removing the calloc/free/memset, the rest is mechanical sed. ok inoguchi@ tb@
* Remove the remaining three parens in return statements.tb2022-01-201-4/+4
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* Use correct spelling of NULL.tb2022-01-201-2/+2
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* Stop reaching into EVP_PKEY in the rest of libssl.tb2021-11-261-5/+5
| | | | ok inoguchi jsing
* Pull up and dedup the TLS version check in ssl_sigalg_pkey_ok().jsing2021-06-291-5/+6
| | | | Suggested by tb@
* Simplify RSA PSS key size comment.jsing2021-06-291-5/+2
| | | | Wording provided by tb@
* Change ssl_sigalg_from_value() to take SSL * instead of a TLS version.jsing2021-06-291-7/+6
| | | | | | | This simplifies callers, as only the negotiated TLS version needs to be used here. Requested by tb@
* Make various sigalg functions static now that they're only used internally.jsing2021-06-291-4/+4
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* Provide a ssl_sigalg_for_peer() function and use in the TLSv1.3 code.jsing2021-06-291-2/+24
| | | | | | | | | | | | Provide an ssl_sigalg_for_peer() function that knows how to figure out which signature algorithm should be used for a peer provided signature, performing appropriate validation to ensure that the peer provided value is suitable for the protocol version and key in use. In the TLSv1.3 code, this replaces the need for separate calls to lookup the sigalg from the peer provided value, then perform validation. ok inoguchi@ tb@
* Move the RSA-PSS check for TLSv1.3 to ssl_sigalg_pkey_ok().jsing2021-06-291-23/+18
| | | | | | | | Also, rather than passing in a check_curve flag, pass in the SSL * and handle version checks internally to ssl_sigalg_pkey_ok(), simplifying the callers. ok inoguchi@ tb@
* Factor out handling of legacy default signature algorithms.jsing2021-06-291-32/+27
| | | | | | | | In the case of TLSv1.0 and TLSv1.1 there is no signature algorithms extension and default signature algorithms are used - similar applies to TLSv1.2 when the signature algorithms extension has been omitted. ok inoguchi@ tb@
* Mop up now unused variables.jsing2021-06-291-7/+2
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* Change ssl_sigalgs_from_value() to perform sigalg list selection.jsing2021-06-271-10/+14
| | | | | | | | | Rather that passing in a sigalg list at every call site, pass in the appropriate TLS version and have ssl_sigalgs_from_value() perform the sigalg list selection itself. This allows the sigalg lists to be made internal to the sigalgs code. ok tb@
* Rename ssl_sigalg() to ssl_sigalg_from_value().jsing2021-06-271-3/+3
| | | | | | | This makes the code more self-documenting and avoids the ambiguity between ssl_sigalg the struct and ssl_sigalg the function. ok tb@
* Change ssl_sigalgs_build() to perform sigalg list selection.jsing2021-06-271-2/+19
| | | | | | | | | Rather that doing sigalg list selection at every call site, pass in the appropriate TLS version and have ssl_sigalgs_build() perform the sigalg list selection itself. This reduces code duplication, simplifies the calling code and is the first step towards internalising the sigalg lists. ok tb@
* Tidy some comments and simplify some code.jsing2021-06-271-15/+7
| | | | ok tb@
* Keep sigalg initialiser order consistent - key type, then hash.jsing2021-06-271-18/+18
| | | | | | This matches the order that sigalgs are specified in. ok tb@
* Explicitly include <openssl/opensslconf.h> in files using OPENSSL_NO_*jsing2021-05-161-1/+2
| | | | | | Where a file references to OPENSSL_NO_* conditions, ensure that we explicitly include <openssl/opensslconf.h> before any references, rather than relying on another header to pull this in.
* Improve internal version handling.jsing2021-03-101-4/+4
| | | | | | | | | | | | | | | | | | Add handshake fields for our minimum TLS version, our maximum TLS version and the TLS version negotiated during the handshake. Initialise our min/max versions at the start of the handshake and leave these unchanged. The negotiated TLS version is set in the client once we receive the ServerHello and in the server at the point we select the highest shared version. Provide an ssl_effective_version() function that returns the negotiated TLS version if known, otherwise our maximum TLS version - this is effectively what is stored in s->version currently. Convert most of the internal code to use one of these three version fields, which greatly simplifies code (especially in the TLS extension handling code). ok tb@
* Constipate ssl3_ciphers and tls1[23]_sigalgs*, pushing them intoguenther2020-10-111-8/+8
| | | | | | .data.rel.ro and .rodata respectively. ok tb@ jsing@
* Forcibly ensure that only PSS may be used with RSA in TLS 1.3.beck2020-05-091-2/+8
| | | | | | | This prevents us from incorrectly choosing a PKCS1 based signature if the client advertises support for them but also prefers them to PSS such as appears to be the case with gnuTLS. ok jsing@
* Correct subtle bug in sigalgs, only care about curve_nid if we arebeck2019-04-011-4/+4
| | | | | checking the curve. ok jsing@ tb@
* Strip out all of the pkey to sigalg and sigalg to pkey linkages.jsing2019-03-251-21/+1
| | | | | | These are no longer used now that we defer signature algorithm selection. ok beck@
* Defer sigalgs selection until the certificate is known.jsing2019-03-251-5/+79
| | | | | | | | | | | | | Previously the signature algorithm was selected when the TLS extension was parsed (or the client received a certificate request), however the actual certificate to be used is not known at this stage. This leads to various problems, including the selection of a signature algorithm that cannot be used with the certificate key size (as found by jeremy@ via ruby regress). Instead, store the signature algorithms list and only select a signature algorithm when we're ready to do signature generation. Joint work with beck@.
* Avoid an internal 2 byte overread in ssl_sigalgs().jsing2019-03-191-7/+2
| | | | | | Found by oss-fuzz, fixes issue #13797. ok beck@ tb@
* Remove SHA224 based sigalgs from use in TLS 1.2 as SHA224 is deprecated.beck2019-01-241-6/+1
| | | | | Remove GOST based sigalgs from TLS 1.2 since they don't work with TLS 1.2. ok jsing@
* Correct ECDSA_SECP512R1 typo to ECDSA_SECP521R1beck2019-01-231-4/+4
| | | | spotted by naddy@
* Modify sigalgs extension processing to accomodate TLS 1.3.beck2019-01-231-2/+19
| | | | | | | | | | - Make a separate sigalgs list for TLS 1.3 including only modern algorithm choices which we use when the handshake will not negotiate TLS 1.2. - Modify the legacy sigalgs for TLS 1.2 to include the RSA PSS algorithms as mandated by RFC8446 when the handshake will permit negotiation of TLS 1.2 from a 1.3 handshake. ok jsing@ tb@
* revert previous, accidentally contained another diff in additionbeck2019-01-231-19/+2
| | | | to the one I intended to commit
* Modify sigalgs extension processing for TLS 1.3.beck2019-01-231-2/+19
| | | | | | | | | - Make a separate sigalgs list for TLS 1.3 including only modern algorithm choices which we use when the handshake will not negotiate TLS 1.2 - Modify the legacy sigalgs for TLS 1.2 to include the RSA PSS algorithms as mandated by RFC8446 when the handshake will permit negotiation of TLS 1.2 ok jsing@ tb@
* Unbreak legacy ciphers for prior to 1.1 by setting having a legacybeck2018-11-161-3/+12
| | | | | sigalg for MD5_SHA1 and using it as the non sigalgs default ok jsing@
* In TLS1.2 we use evp_sha1 if we fall back this far, not evp_md5_sha1 as in 1.1beck2018-11-141-2/+2
| | | | Makes connections to outlook.office365.com work
* Temporary workaround for breakage seen in www.videolan.org with curve mismatchbeck2018-11-131-3/+4
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* Fix pkey_ok to be less strange, and add cuve checks required for the EC onesbeck2018-11-131-9/+26
| | | | ok tb@
* Add check function to verify that pkey is usable with a sigalg.beck2018-11-111-1/+17
| | | | | Include check for appropriate RSA key size when used with PSS. ok tb@
* Convert signatures and verifcation to use the EVP_DigestXXX apibeck2018-11-111-3/+1
| | | | | | to allow for adding PSS, Nuke the now unneejded guard around the PSS algorithms in the sigalgs table ok jsing@ tb@
* Remove dead codebeck2018-11-101-14/+1
| | | | ok jsing@
* Stop keeping track of sigalgs by guessing it from digest and pkey,beck2018-11-101-16/+5
| | | | | | just keep the sigalg around so we can remember what we actually decided to use. ok jsing@
* Ensure we only choose sigalgs from our prefernce list, not the whole listbeck2018-11-091-4/+11
| | | | ok jsing@
* Add the ability to have a separate priority list for sigalgs.beck2018-11-091-6/+34
| | | | | Add a priority list for tls 1.2 ok jsing@
* Reimplement the sigalgs processing code into a new implementationbeck2018-11-091-0/+218
that will be usable with TLS 1.3 with less eye bleed. ok jsing@ tb@
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