Add some documentation to describe the encap/decap requirements

Document the fact that we now require unwrappedlen/wrappedlen to be set
to the size of the unwrapped/wrapped buffers

Add some documentation to describe the encap/decap requirements

Document the fact that we now require unwrappedlen/wrappedlen to be set
to the size of the unwrapped/wrapped buffers

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25522)

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Fix examples in EVP_PKEY_encapsulate/decapsulate documentation

Fixes #25448

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
R

Fix examples in EVP_PKEY_encapsulate/decapsulate documentation

Fixes #25448

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25450)

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Copyright year updates


Reviewed-by: Richard Levitte <levitte@openssl.org>
Release: yes

EVP_PKEY_{en,de}capsulate.pod: fix glitches and add some detail and hints

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: David vo

EVP_PKEY_{en,de}capsulate.pod: fix glitches and add some detail and hints

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/21397)

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Typos fixing

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

Typos fixing

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/20109)

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Change all references to OpenSSL 3.1 to OpenSSL 3.2 in the master branch

3.1 has been decided to be a FIPS 140-3 release, springing from the branch
openssl-3.0, and the master branch to

Change all references to OpenSSL 3.1 to OpenSSL 3.2 in the master branch

3.1 has been decided to be a FIPS 140-3 release, springing from the branch
openssl-3.0, and the master branch to continue with the development of
OpenSSL 3.2.

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19350)

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Add HPKE DHKEM provider support for EC, X25519 and X448.

The code is derived from @sftcd's work in PR #17172.
This PR puts the DHKEM algorithms into the provider layer as
KEM algorit

Add HPKE DHKEM provider support for EC, X25519 and X448.

The code is derived from @sftcd's work in PR #17172.
This PR puts the DHKEM algorithms into the provider layer as
KEM algorithms for EC and ECX.

This PR only implements the DHKEM component of HPKE as specified in
RFC 9180.

crypto/hpke/hpke_util.c has been added for fuctions that will
be shared between DHKEM and HPKE.

API's for EVP_PKEY_auth_encapsulate_init() and EVP_PKEY_auth_decapsulate_init()
have been added to support authenticated encapsulation. auth_init() functions
were chosen rather that a EVP_PKEY_KEM_set_auth() interface to support
future algorithms that could possibly need different init functions.

Internal code has been refactored, so that it can be shared between the DHKEM
and other systems. Since DHKEM operates on low level keys it needs to be
able to do low level ECDH and ECXDH calls without converting the keys
back into EVP_PKEY/EVP_PKEY_CTX form. See ossl_ecx_compute_key(),
ossl_ec_public_from_private()

DHKEM requires API's to derive a key using a seed (IKM). This did not sit
well inside the DHKEM itself as dispatch functions. This functionality
fits better inside the EC and ECX keymanagers keygen, since
they are just variations of keygen where the private key is generated
in a different manner. This should mainly be used for testing purposes.
See ossl_ec_generate_key_dhkem().
It supports this by allowing a settable param to be passed to keygen
(See OSSL_PKEY_PARAM_DHKEM_IKM).
The keygen calls code within ec and ecx dhkem implementation to handle this.
See ossl_ecx_dhkem_derive_private() and ossl_ec_dhkem_derive_private().
These 2 functions are also used by the EC/ECX DHKEM implementations to generate
the sender ephemeral keys.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19068)

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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: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14801)

doc: update PKEY documentation to include the new init functions with params

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/1438

doc: update PKEY documentation to include the new init functions with params

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/14383)

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Add KEM (Key encapsulation mechanism) support to providers

SP800-56Br2 requires support for the RSA primitives for RSASVE generate and recover.
As these are simple KEM operations another

Add KEM (Key encapsulation mechanism) support to providers

SP800-56Br2 requires support for the RSA primitives for RSASVE generate and recover.
As these are simple KEM operations another operation type has been added that can support future extensions.

Added public functions EVP_PKEY_encapsulate_init(), EVP_PKEY_encapsulate(), EVP_PKEY_decapsulate_init() and EVP_PKEY_decapsulate()
Added EVP_KEM_* functions.
Added OSSL_FUNC_kem_* dispatch functions

Added EVP_PKEY_CTX_set_kem_op() so that different types of KEM can be added in the future. This value must currently be set to
"RSASVE" after EVP_PKEY_encapsulate_init() & EVP_PKEY_decapsulate_init() as there is no default value.
This allows the existing RSA key types, keymanagers, and encoders to be used with the encapsulation operations.

The design of the public API's resulted from contributions from @romen & @levitte.

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12750)

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