Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/20023)
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/20023)
Fixes#19718Fixes#19716
Added PKCS12_SAFEBAG_get1_cert_ex(), PKCS12_SAFEBAG_get1_crl_ex() and
ASN1_item_unpack_ex().
parse_bag and parse_bags now use the libctx/propq stored in the P7_CTX.
PKCS12_free() needed to be manually constructed in order to free the propq.
pkcs12_api_test.c changed so that it actually tests the libctx, propq.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19942)
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20019)
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
(Merged from https://github.com/openssl/openssl/pull/20035)
Fixes#6277
Description:
Make each of the five EdDSA instances defined in RFC 8032 -- Ed25519,
Ed25519ctx, Ed25519ph, Ed448, Ed448ph -- available via the EVP APIs.
The desired EdDSA instance is specified via an OSSL_PARAM.
All instances, except for Ed25519, allow context strings as input.
Context strings are passed via an OSSL_PARAM. For Ed25519ctx, the
context string must be nonempty.
Ed25519, Ed25519ctx, Ed448 are PureEdDSA instances, which means that
the full message (not a digest) must be passed to sign and verify
operations.
Ed25519ph, Ed448ph are HashEdDSA instances, which means that the input
message is hashed before sign and verify.
Testing:
All 21 test vectors from RFC 8032 have been added to evppkey_ecx.txt
(thanks to Shane Lontis for showing how to do that). Those 21 test
vectors are exercised by evp_test.c and cover all five instances.
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/19705)
is used.
Fixes#19934
The existing code was looking for the digest size, and then returned
zero.
The example code in EVP_KDF-SS.pod has been corrected to not use a
digest.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19935)
Fixes#19953
CLA: trivial
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20008)
Fixes#8630
The remaining functions are at least as old as 0.9.8 so it is
not worth documenting this.
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19956)
Fixes#19829
Examples added for setting/getting ECDSA SIG related r and s values
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19936)
Fixes#19782
Clarify that EVP_Q_MAC() can be used as an alternative that allows
setting of the libctx.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19855)
Now that ACVP test vectors exist, support has been added for this mode.
See https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-108r1.pdf
Note that the test vectors used fairly large values for the input key
and the context, so the contraints for these has been increased from
256 to 512 bytes.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19916)
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19889)
We already permit this in crypto/objects/objects.txt, but not programatically,
although being able to do so programatically would be beneficial.
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19876)
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13817)
The RSA decryption as implemented before required very careful handling
of both the exit code returned by OpenSSL and the potentially returned
ciphertext. Looking at the recent security vulnerabilities
(CVE-2020-25659 and CVE-2020-25657) it is unlikely that most users of
OpenSSL do it correctly.
Given that correct code requires side channel secure programming in
application code, we can classify the existing RSA decryption methods
as CWE-676, which in turn likely causes CWE-208 and CWE-385 in
application code.
To prevent that, we can use a technique called "implicit rejection".
For that we generate a random message to be returned in case the
padding check fails. We generate the message based on static secret
data (the private exponent) and the provided ciphertext (so that the
attacker cannot determine that the returned value is randomly generated
instead of result of decryption and de-padding). We return it in case
any part of padding check fails.
The upshot of this approach is that then not only is the length of the
returned message useless as the Bleichenbacher oracle, so are the
actual bytes of the returned message. So application code doesn't have
to perform any operations on the returned message in side-channel free
way to remain secure against Bleichenbacher attacks.
Note: this patch implements a specific algorithm, shared with Mozilla
NSS, so that the attacker cannot use one library as an oracle against the
other in heterogeneous environments.
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13817)
FIPS 186-4 section 5 "The RSA Digital Signature Algorithm", subsection
5.5 "PKCS #1" says: "For RSASSA-PSS […] the length (in bytes) of the
salt (sLen) shall satisfy 0 <= sLen <= hLen, where hLen is the length of
the hash function output block (in bytes)."
Introduce a new option RSA_PSS_SALTLEN_AUTO_DIGEST_MAX and make it the
default. The new value will behave like RSA_PSS_SALTLEN_AUTO, but will
not use more than the digest length when signing, so that FIPS 186-4 is
not violated. This value has two advantages when compared with
RSA_PSS_SALTLEN_DIGEST: (1) It will continue to do auto-detection when
verifying signatures for maximum compatibility, where
RSA_PSS_SALTLEN_DIGEST would fail for other digest sizes. (2) It will
work for combinations where the maximum salt length is smaller than the
digest size, which typically happens with large digest sizes (e.g.,
SHA-512) and small RSA keys.
J.-S. Coron shows in "Optimal Security Proofs for PSS and Other
Signature Schemes. Advances in Cryptology – Eurocrypt 2002, volume 2332
of Lecture Notes in Computer Science, pp. 272 – 287. Springer Verlag,
2002." that longer salts than the output size of modern hash functions
do not increase security: "For example,for an application in which at
most one billion signatures will be generated, k0 = 30 bits of random
salt are actually sufficient to guarantee the same level of security as
RSA, and taking a larger salt does not increase the security level."
Signed-off-by: Clemens Lang <cllang@redhat.com>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19724)
Do not accept password-based if expected signature-based and no secret is available and
do not accept signature-based if expected password-based and no trust anchors available.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
(Merged from https://github.com/openssl/openssl/pull/19729)
The types OSSL_DISPATCH, OSSL_ITEM, OSSL_ALGORITHM, OSSL_PARAM,
OSSL_CALLBACK, and OSSL_PASSPHRASE_CALLBACK are described in their own
manual page, so we change every mention of them to links to those pages.
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19842)
This expands on some of the core type descriptions, and also makes it
easier to find the documentation for each type, at least on Unix, with
a simple call like "man OSSL_ALGORITHM".
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19842)
Fixes openssl#19771
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19787)
Fixes GH #19786
Also simplify the CSPRNG must be seeded argument.
Since version 1.1.1, the CSPRNG is seeded automatically on first use,
so it's not the responsibility of the programmer anymore. Still, he
needs to be aware that the seeding might fail.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19789)
parameter.
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)
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)
Originally the code to im/export the EC pubkey was meant to be consumed
only by the im/export functions when crossing the provider boundary.
Having our providers exporting to a COMPRESSED format octet string made
sense to avoid memory waste, as it wasn't exposed outside the provider
API, and providers had all tools available to convert across the three
formats.
Later on, with #13139 deprecating the `EC_KEY_*` functions, more state
was added among the params imported/exported on an EC provider-native
key (including `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT`, although it
did not affect the format used to export `OSSL_PKEY_PARAM_PUB_KEY`).
Finally, in #14800, `EVP_PKEY_todata()` was introduced and prominently
exposed directly to users outside the provider API, and the choice of
COMPRESSED over UNCOMPRESSED as the default became less sensible in
light of usability, given the latter is more often needed by
applications and protocols.
This commit fixes it, by using `EC_KEY_get_conv_form()` to get the
point format from the internal state (an `EC_KEY` under the hood) of the
provider-side object, and using it on
`EVP_PKEY_export()`/`EVP_PKEY_todata()` to format
`OSSL_PKEY_PARAM_PUB_KEY`.
The default for an `EC_KEY` was already UNCOMPRESSED, and it is altered
if the user sets `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT` via
`EVP_PKEY_fromdata()`, `EVP_PKEY_set_params()`, or one of the
more specialized methods.
For symmetry, this commit also alters `ec_pkey_export_to()` in
`crypto/ec/ec_ameth.c`, part of the `EVP_PKEY_ASN1_METHOD` for legacy EC
keys: it exclusively used COMPRESSED format, and now it honors the
conversion format specified in the EC_KEY object being exported to a
provider when this function is called.
Expand documentation about `OSSL_PKEY_PARAM_PUB_KEY` and mention the
3.1 change in behavior for our providers.
Fixes#16595
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19681)
(cherry picked from commit 926db476bc)
Pauli
north-16
slontis
Dmitry Belyavskiy
Dr. David von Oheimb
Hugo Landau
James Muir
Nobuhiro IMAI
H. Vetinari
Nikhil Bisht
Semen Zhydenko
Peiwei Hu
Hubert Kario
Richard Levitte
Clemens Lang
Stephen Farrell
Daniel Fiala
Patrick Mills
Reinhard Urban
Tomas Mraz
Xu Yizhou
Nicola Tuveri