docs: Document the implemented composite signature+hash algorithms

The details for RSA and EdDSA have already been documented, albeit the
RSA documentation wasn't conforming properly to

docs: Document the implemented composite signature+hash algorithms

The details for RSA and EdDSA have already been documented, albeit the
RSA documentation wasn't conforming properly to the POD format.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25422)

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Copyright year updates


Reviewed-by: Neil Horman <nhorman@openssl.org>
Release: yes

Cleanups for FIPS indicator documentation

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/

Cleanups for FIPS indicator documentation

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25195)

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doc: document the OSSL_SIGNATURE_PARAM_FIPS_VERIFY_MESSAGE parameter

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from http

doc: document the OSSL_SIGNATURE_PARAM_FIPS_VERIFY_MESSAGE parameter

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/25211)

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Refactor OpenSSL 'RSA' EVP_SIGNATURE to also include RSA+hash composites

(in the code, "sigalg" is used to refer to these composite algorithms,
which is a nod to libcrypto and libssl, wh

Refactor OpenSSL 'RSA' EVP_SIGNATURE to also include RSA+hash composites

(in the code, "sigalg" is used to refer to these composite algorithms,
which is a nod to libcrypto and libssl, where that term is commonly used
for composite algorithms)

To make this implementation possible, wrappers were added around the hash
function itself, allowing the use of existing hash implementations through
their respective OSSL_DISPATCH tables, but also retaining the dynamic fetch
of hash implementations when the digest_sign / digest_verify functionality
is used. This wrapper allows implementing the RSA+hash composites through
simple initializer function and a custom OSSL_DISPATCH table for each.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Neil Horman <nhorman@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/23416)

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Restrict salt length for RSA-PSS in the FIPS provider

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/o

Restrict salt length for RSA-PSS in the FIPS provider

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25115)

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doc: fix typos

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/25070)

Add RSA Signature restrictions for X9.31 padding in the FIPS provider.

In FIPS 140-3, RSA Signing with X9.31 padding is not approved,
but verification is allowed for legacy purposes. An

Add RSA Signature restrictions for X9.31 padding in the FIPS provider.

In FIPS 140-3, RSA Signing with X9.31 padding is not approved,
but verification is allowed for legacy purposes. An indicator has been added
for RSA signing with X9.31 padding.

A strict restriction on the size of the RSA modulus has been added
i.e. It must be 1024 + 256 * s (which is part of the ANSI X9.31 spec).

Added implementation comments to the X9.31 padding code

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/24021)

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Fix parameter types int -> integer changes

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Yang <kaishen.yy@antfin.com>
Reviewed-by: Richard Levitte <levitte@op

Fix parameter types int -> integer changes

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Yang <kaishen.yy@antfin.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24881)

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Change all existing FIPS configurable checks to use FIPS indicators.

This changes the logic to always do the security checks and then decide
what to do based on if this passes or not. Fa

Change all existing FIPS configurable checks to use FIPS indicators.

This changes the logic to always do the security checks and then decide
what to do based on if this passes or not. Failure of a check causes
either a failure OR the FIPS indicator callback to be triggered.

Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24623)

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signature: Clamp PSS salt len to MD len

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
sa

signature: Clamp PSS salt len to MD len

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)

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Updated information for OSSL_SIGNATURE_PARAM_PSS_SALTLEN
Fixes #18066

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from

Updated information for OSSL_SIGNATURE_PARAM_PSS_SALTLEN
Fixes #18066

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18736)

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doc: remove end of line whitespace

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pul

doc: remove end of line whitespace

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/16641)

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Update copyright year

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14512)

Remove RSA SSLv23 padding mode

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14248)

Update core_names.h fields and document most fields.

Renamed some values in core_names i.e Some DH specific names were changed to use DH instead of FFC.
Added some strings values related

Update core_names.h fields and document most fields.

Renamed some values in core_names i.e Some DH specific names were changed to use DH instead of FFC.
Added some strings values related to RSA keys.
Moved set_params related docs out of EVP_PKEY_CTX_ctrl.pod into its own file.
Updated Keyexchange and signature code and docs.
Moved some common DSA/DH docs into a shared EVP_PKEY-FFC.pod.
Moved Ed25519.pod into EVP_SIGNATURE-ED25519.pod and reworked it.

Added some usage examples. As a result of the usage examples the following change was also made:
ec allows OSSL_PKEY_PARAM_USE_COFACTOR_ECDH as a settable gen parameter.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11610)

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