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* If a NULL or zero cofactor is passed to EC_GROUP_set_generator(),tb2019-09-293-11/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | try to compute it using Hasse's bound. This works as long as the cofactor is small enough. Port of Brumley's fix for CVE-2019-1547 in OpenSSL 1.1.1 (old license) tests & ok inoguchi input & ok jsing commit 30c22fa8b1d840036b8e203585738df62a03cec8 Author: Billy Brumley <bbrumley@gmail.com> Date: Thu Sep 5 21:25:37 2019 +0300 [crypto/ec] for ECC parameters with NULL or zero cofactor, compute it The cofactor argument to EC_GROUP_set_generator is optional, and SCA mitigations for ECC currently use it. So the library currently falls back to very old SCA-vulnerable code if the cofactor is not present. This PR allows EC_GROUP_set_generator to compute the cofactor for all curves of cryptographic interest. Steering scalar multiplication to more SCA-robust code. This issue affects persisted private keys in explicit parameter form, where the (optional) cofactor field is zero or absent. It also affects curves not built-in to the library, but constructed programatically with explicit parameters, then calling EC_GROUP_set_generator with a nonsensical value (NULL, zero). The very old scalar multiplication code is known to be vulnerable to local uarch attacks, outside of the OpenSSL threat model. New results suggest the code path is also vulnerable to traditional wall clock timing attacks. CVE-2019-1547 Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com> (Merged from https://github.com/openssl/openssl/pull/9781)
* document EVP_PKEY_CTX_get_signature_md(3);schwarze2019-09-101-4/+17
| | | | jsing@ provided it in evp.h rev. 1.77
* Plug memory leak in error paths. Found while comparing this filetb2019-09-091-5/+5
| | | | | | with OpenSSL 1.1.1's version which contains a similar fix. ok jsing
* Provide EVP_PKEY_CTX_get_signature_md() macro and implement thejsing2019-09-094-7/+25
| | | | | | | | EVP_PKEY_CTRL_GET_MD control for DSA, EC and RSA. This is used by the upcoming RSA CMS code. ok inoguchi@ tb@
* Load CMS error strings.jsing2019-09-091-1/+5
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* Move #include <openssl/cms.h> to more appropriate location (since it isjsing2019-09-091-3/+2
| | | | now being installed).
* Install the openssl/cms.h header.jsing2019-09-091-1/+3
| | | | | | | | This header includes OPENSSL_NO_CMS guards, so even if things find the header it provides no useful content (and other code should technically also be using OPENSSL_NO_CMS...). ok deraadt@ inoguchi@
* Add CMS ECC support.jsing2019-09-081-2/+370
| | | | | | | | This brings in EC code from OpenSSL 1.1.1b, with style(9) and whitespace cleanups. All of this code is currently under OPENSSL_NO_CMS hence is a no-op. ok inoguchi@
* Add various macros and controls for EC_PKEY_CTX.jsing2019-09-064-28/+316
| | | | | | | | | These are needed for the upcoming EC CMS support (nothing else appears to use them). This largely syncs our ec_pmeth.c with OpenSSL 1.1.1b. With input from inoguchi@ and tb@. ok inoguchi@ tb@
* Handle CMS PEM headers.jsing2019-09-061-1/+11
| | | | ok inoguchi@ tb@
* Add objects for ECDH schemes in RFC 5753.jsing2019-09-052-0/+32
| | | | | | Based on OpenSSL 1.1.1b. ok inoguchi@ tb@
* Build ecdh_kdf.cjsing2019-09-051-2/+2
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* Replace OPENSSL_cleanse() with explicit_bzero().jsing2019-09-051-1/+1
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* Provide prototype for ecdh_KDF_X9_63()jsing2019-09-051-1/+7
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* Include correct header.jsing2019-09-051-1/+1
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* style(9) and whitespace.jsing2019-09-051-65/+72
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* Restore per-file license/copyright removed in OpenSSL commit 4f22f40507f.jsing2019-09-051-5/+48
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* Remove ECDH_KDF_X9_62 wrapper.jsing2019-09-051-12/+0
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* Provide ECDH KDF for X9.63 as needed for CMS ECC.jsing2019-09-051-0/+81
| | | | | | From OpenSSL 1.1.1b. ok tb@ inoguchi@
* Document EVP_PKEY_get0(3), EVP_PKEY_assign_GOST(3), EVP_PKEY_assign(3),schwarze2019-09-012-31/+116
| | | | | and EVP_PKEY_set_type(3). While here, clarify a few points regarding reference count and type checking.
* new manual page AES_encrypt(3)schwarze2019-08-284-5/+181
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* document OCSP_parse_url(3)schwarze2019-08-271-6/+75
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* document OCSP_cert_status_str(3)schwarze2019-08-271-3/+19
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* document OCSP_response_status_str(3)schwarze2019-08-271-4/+19
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* document i2a_ASN1_INTEGER(3)schwarze2019-08-261-5/+50
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* document ASN1_put_object(3) and ASN1_put_eoc(3)schwarze2019-08-263-3/+186
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* document ASN1_OCTET_STRING_cmp(3), ASN1_OCTET_STRING_dup(3), andschwarze2019-08-261-12/+45
| | | | ASN1_OCTET_STRING_set(3)
* Change generating and checking of primes so that the error rate ofschwarze2019-08-252-26/+93
| | | | | | | | | | | not being prime depends on the intended use based on the size of the input. For larger primes this will result in more rounds of Miller-Rabin. The maximal error rate for primes with more than 1080 bits is lowered to 2^-128. Patch from Kurt Roeckx <kurt@roeckx.be> and Annie Yousar via OpenSSL commit feac7a1c Jul 25 18:55:16 2018 +0200, still under a free license. OK tb@.
* document EVP_sm3(3) and EVP_whirlpool(3), loosely based on theschwarze2019-08-255-6/+177
| | | | OpenSSL 1.1.1 pages, which are still under a free license
* fix reversed meaning of error codes;schwarze2019-08-251-7/+7
| | | | | from Martin Ukrop <mukrop at mail dot muni dot cz> via OpenSSL commit bb00b040 Aug 5 14:14:54 2019 +0200
* typo in function argument type;schwarze2019-08-251-4/+4
| | | | | from Jan Macku <jamacku at redhat dot com> via OpenSSL commit a9b9d265 Jan 30 16:09:50 2019 +0100
* Correctly document the return values of i2d_ECDSA_SIG(3) andschwarze2019-08-251-25/+28
| | | | | | | d2i_ECDSA_SIG(3); triggered by OpenSSL commit da4ea0cf Aug 5 16:13:24 2019 +0100, but solved differently. While here, adjust argument placeholders and wording to our usual conventions, and don't try to reiterate the complicated contents of ASN1_item_d2i(3) here.
* import the CRYPTO_memcmp(3) manual from OpenSSL 1.1.1,schwarze2019-08-252-1/+97
| | | | still under a free license, tweaked by me
* document RSAPrivateKey_dup(3) and RSAPublicKey_dup(3)schwarze2019-08-231-11/+55
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* document X509_get1_email(3), X509_get1_ocsp(3), X509_email_free(3)schwarze2019-08-236-12/+141
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* document X509_dup(3)schwarze2019-08-231-8/+40
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* document X509_check_purpose(3)schwarze2019-08-226-9/+403
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* New manual page X509_cmp(3) documenting the same public functionsschwarze2019-08-206-10/+241
| | | | | | as in OpenSSL 1.1.1. I rewrote most of the text for clarity, precision, and conciseness and added some additional information. A few sentences from Paul Yang remain.
* Add static_ASN1_* macroinoguchi2019-08-201-1/+72
| | | | - Add static_ASN1_* macro. Patch was provided by steils AT gentoo.org
* make BN_CTX_end(NULL) a NOOP for compatibility with documented behaviourschwarze2019-08-202-4/+12
| | | | | | | | | in OpenSSL 1.1.1 even though in general, letting random functions accept NULL is not advisable because it can hide programming errors; "yes please" tb@ "unfortunately I suspect you're right" jsing@ "oh well" deraadt@
* document X509_INFO_new(3) and X509_INFO_free(3)schwarze2019-08-194-10/+78
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* document ECDH_compute_key(3) and ECDH_size(3);schwarze2019-08-198-15/+110
| | | | feedback and OK tb@
* Tweak cross references, in particular making sure thatschwarze2019-08-1823-48/+85
| | | | | all CMS pages are linked to CMS_ContentInfo_new(3) both ways and that closely related pages reference each other.
* minor cleanup:schwarze2019-08-182-63/+37
| | | | | | * avoid jumping back and forth between use cases * delete duplicate information * and minor wording improvements
* minor cleanup:schwarze2019-08-184-54/+74
| | | | | | | * add the missing STANDARDS sections * mark up ASN.1 type names * GOST does not need an ENGINE in LibreSSL, so don't use it as an example * and minor wording improvements and typo fixes
* minor cleanup:schwarze2019-08-181-22/+42
| | | | | | * mark up ASN.1 type and field names * move the RFC reference to STANDARDS * and minor wording improvements
* some cleanup:schwarze2019-08-181-60/+82
| | | | | | | | | | * do not jump back and forth among functions * show data type - NID correspondance in a table * make the difference between content type and embedded content clearer * add the missing STANDARDS section * mark up ASN.1 type names * remove some text that says nothing * and minor wording improvements
* some cleanup:schwarze2019-08-171-44/+46
| | | | | | | | * add the missing STANDARDS section * more precision below RETURN VALUES * simplify some overly verbose text * mark up ASN.1 type names * and minor wording improvements and typo fixes
* minor cleanup:schwarze2019-08-171-89/+88
| | | | | | | | * add the missing STANDARDS section * mark up ASN.1 type names * avoid some repetitions * make some lists more palatable in -column form * and minor wording improvements and typo fixes
* link to the new EC_KEY_METHOD_new(3) pageschwarze2019-08-161-3/+6
| | | | and mention a trap set by EC_KEY_copy(3)
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