Add EVP_KDF-X942 to the fips module

The X942 KDF had been modified so that it supports all optional fields - not
just the fields used by CMS.

As there are 2 types of KDF for X942 - this has been made a bit clearer
by adding an X942KDF-ASN1 alias. X942KDF-CONCAT has also been added as an
alias of X963KDF.

This work was instigated as a result of the ACVP tests optionally being
able to use keybits for the supp_pubinfo field.
Setting the parameter OSSL_KDF_PARAM_X942_USE_KEYBITS to 0 allows this
to be disabled.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13418)

5 files changed, 194 insertions, 124 deletions

diff --git a/doc/man7/EVP_KDF-X942-ASN1.pod b/doc/man7/EVP_KDF-X942-ASN1.pod
new file mode 100644
index 0000000000..3c5c3077ca
--- /dev/null
+++ b/doc/man7/EVP_KDF-X942-ASN1.pod
@@ -0,0 +1,146 @@
+=pod
+
+=head1 NAME
+
+EVP_KDF-X942-ASN1 - The X9.42-2003 asn1 EVP_KDF implementation
+
+=head1 DESCRIPTION
+
+The EVP_KDF-X942-ASN1 algorithm implements the key derivation function
+X942KDF-ASN1. It is used by DH KeyAgreement, to derive a key using input such as
+a shared secret key and other info. The other info is DER encoded data that
+contains a 32 bit counter as well as optional fields for "partyu-info",
+"partyv-info", "supp-pubinfo" and "supp-privinfo".
+This kdf is used by Cryptographic Message Syntax (CMS).
+
+=head2 Identity
+
+"X942KDF-ASN1" or "X942KDF" is the name for this implementation; it
+can be used with the EVP_KDF_fetch() function.
+
+=head2 Supported parameters
+
+The supported parameters are:
+
+=over 4
+
+=item "properties" (B<OSSL_KDF_PARAM_PROPERTIES>) <UTF8 string>
+
+=item "digest" (B<OSSL_KDF_PARAM_DIGEST>) <UTF8 string>
+
+These parameters work as described in L<EVP_KDF(3)/PARAMETERS>.
+
+=item "key" (B<OSSL_KDF_PARAM_KEY>) <octet string>
+
+The shared secret used for key derivation.  This parameter sets the secret.
+
+=item "partyu-info" (B<OSSL_KDF_PARAM_X942_PARTYUINFO>) <octet string>
+
+An optional octet string containing public info contributed by the initiator.
+
+=item "ukm" (B<OSSL_KDF_PARAM_UKM>) <octet string>
+
+An alias for "partyu-info".
+In CMS this is the user keying material.
+
+=item "partyv-info" (B<OSSL_KDF_PARAM_X942_PARTYVINFO>) <octet string>
+
+An optional octet string containing public info contributed by the responder.
+
+=item "supp-pubinfo" (B<OSSL_KDF_PARAM_X942_SUPP_PUBINFO>) <octet string>
+
+An optional octet string containing some additional, mutually-known public
+information. Setting this value also sets "use-keybits" to 0.
+
+=item "use-keybits" (B<OSSL_KDF_PARAM_X942_SUPP_PRIVINFO>) <integer>
+
+The default value of 1 will use the KEK key length (in bits) as the
+"supp-pubinfo". A value of 0 disables setting the "supp-pubinfo".
+
+=item "supp-privinfo" (B<OSSL_KDF_PARAM_X942_SUPP_PRIVINFO>) <octet string>
+
+An optional octet string containing some additional, mutually-known private
+information.
+
+=item "cekalg" (B<OSSL_KDF_PARAM_CEK_ALG>) <UTF8 string>
+
+This parameter sets the CEK wrapping algorithm name.
+Valid values are "AES-128-WRAP", "AES-192-WRAP", "AES-256-WRAP" and "DES3-WRAP".
+
+=back
+
+=head1 NOTES
+
+A context for X942KDF can be obtained by calling:
+
+ EVP_KDF *kdf = EVP_KDF_fetch(NULL, "X942KDF", NULL);
+ EVP_KDF_CTX *kctx = EVP_KDF_CTX_new(kdf);
+
+The output length of an X942KDF is specified via the I<keylen>
+parameter to the L<EVP_KDF_derive(3)> function.
+
+=head1 EXAMPLES
+
+This example derives 24 bytes, with the secret key "secret" and random user
+keying material:
+
+  EVP_KDF_CTX *kctx;
+  EVP_KDF_CTX *kctx;
+  unsigned char out[192/8];
+  unsignred char ukm[64];
+  OSSL_PARAM params[5], *p = params;
+
+  if (RAND_bytes(ukm, sizeof(ukm)) <= 0)
+      error("RAND_bytes");
+
+  kdf = EVP_KDF_fetch(NULL, "X942KDF", NULL);
+  if (kctx == NULL)
+      error("EVP_KDF_fetch");
+  kctx = EVP_KDF_CTX_new(kdf);
+  EVP_KDF_free(kdf);
+  if (kctx == NULL)
+      error("EVP_KDF_CTX_new");
+
+  *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST, "SHA256", 0);
+  *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SECRET,
+                                           "secret", (size_t)6);
+  *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_UKM, ukm, sizeof(ukm));
+  *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_CEK_ALG, "AES-256-WRAP, 0);
+  *p = OSSL_PARAM_construct_end();
+  if (EVP_KDF_CTX_set_params(kctx, params) <= 0)
+      error("EVP_KDF_CTX_set_params");
+
+  if (EVP_KDF_derive(kctx, out, sizeof(out)) <= 0)
+      error("EVP_KDF_derive");
+
+  EVP_KDF_CTX_free(kctx);
+
+=head1 CONFORMING TO
+
+ANS1 X9.42-2003
+RFC 2631
+
+=head1 SEE ALSO
+
+L<EVP_KDF(3)>,
+L<EVP_KDF_CTX_new(3)>,
+L<EVP_KDF_CTX_free(3)>,
+L<EVP_KDF_CTX_set_params(3)>,
+L<EVP_KDF_CTX_get_kdf_size(3)>,
+L<EVP_KDF_derive(3)>,
+L<EVP_KDF(3)/PARAMETERS>
+
+=head1 HISTORY
+
+This functionality was added to OpenSSL 3.0.
+
+=head1 COPYRIGHT
+
+Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the Apache License 2.0 (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
diff --git a/doc/man7/EVP_KDF-X942-CONCAT.pod b/doc/man7/EVP_KDF-X942-CONCAT.pod
new file mode 100644
index 0000000000..9ea6e84dfb
--- /dev/null
+++ b/doc/man7/EVP_KDF-X942-CONCAT.pod
@@ -0,0 +1,35 @@
+=pod
+
+=head1 NAME
+
+EVP_KDF-X942-CONCAT - The X942 Concat EVP_KDF implementation
+
+=head1 DESCRIPTION
+
+The EVP_KDF-X942-CONCAT algorithm is identical to EVP_KDF-X963. It is
+used for key agreement to derive a key using input such as a shared secret key
+and shared info.
+
+=head2 Identity
+
+"X942KDF_CONCAT" is the name for this implementation; it
+can be used with the EVP_KDF_fetch() function.
+
+This is an alias for "X963KDF".
+
+See <EVP_KDF-X963(7)> for a list of supported parameters and examples.
+
+=head1 HISTORY
+
+This functionality was added to OpenSSL 3.0.
+
+=head1 COPYRIGHT
+
+Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the Apache License 2.0 (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
diff --git a/doc/man7/EVP_KDF-X942.pod b/doc/man7/EVP_KDF-X942.pod
deleted file mode 100644
index 70da41437b..0000000000
--- a/doc/man7/EVP_KDF-X942.pod
+++ /dev/null
@@ -1,122 +0,0 @@
-=pod
-
-=head1 NAME
-
-EVP_KDF-X942 - The X9.42-2001 asn1 EVP_KDF implementation
-
-=head1 DESCRIPTION
-
-The EVP_KDF-X942 algorithm implements the key derivation function (X942KDF).
-X942KDF is used by Cryptographic Message Syntax (CMS) for DH KeyAgreement, to
-derive a key using input such as a shared secret key and other info. The other
-info is DER encoded data that contains a 32 bit counter.
-
-=head2 Identity
-
-"X942KDF" is the name for this implementation; it
-can be used with the EVP_KDF_fetch() function.
-
-=head2 Supported parameters
-
-The supported parameters are:
-
-=over 4
-
-=item "properties" (B<OSSL_KDF_PARAM_PROPERTIES>) <UTF8 string>
-
-=item "digest" (B<OSSL_KDF_PARAM_DIGEST>) <UTF8 string>
-
-These parameters work as described in L<EVP_KDF(3)/PARAMETERS>.
-
-=item "key" (B<OSSL_KDF_PARAM_KEY>) <octet string>
-
-The shared secret used for key derivation.  This parameter sets the secret.
-
-=item "ukm" (B<OSSL_KDF_PARAM_UKM>) <octet string>
-
-This parameter is an optional random string that is provided
-by the sender called "partyAInfo".
-In CMS this is the user keying material.
-
-=item "cekalg" (B<OSSL_KDF_PARAM_CEK_ALG>) <UTF8 string>
-
-This parameter sets the CEK wrapping algorithm name. 
-
-=back
-
-=head1 NOTES
-
-A context for X942KDF can be obtained by calling:
-
- EVP_KDF *kdf = EVP_KDF_fetch(NULL, "X942KDF", NULL);
- EVP_KDF_CTX *kctx = EVP_KDF_CTX_new(kdf);
-
-The output length of an X942KDF is specified via the I<keylen>
-parameter to the L<EVP_KDF_derive(3)> function.
-
-=head1 EXAMPLES
-
-This example derives 24 bytes, with the secret key "secret" and a random user
-keying material:
-
-  EVP_KDF_CTX *kctx;
-  EVP_KDF_CTX *kctx;
-  unsigned char out[192/8];
-  unsignred char ukm[64];
- OSSL_PARAM params[5], *p = params;
-
-  if (RAND_bytes(ukm, sizeof(ukm)) <= 0)
-      error("RAND_bytes");
-
- kdf = EVP_KDF_fetch(NULL, "X942KDF", NULL);
- if (kctx == NULL)
-     error("EVP_KDF_fetch");
- kctx = EVP_KDF_CTX_new(kdf);
- if (kctx == NULL)
-     error("EVP_KDF_CTX_new");
- EVP_KDF_free(kdf);
-
- *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
-                                         SN_sha256, strlen(SN_sha256));
- *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SECRET,
-                                          "secret", (size_t)6);
- *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_UKM, ukm, sizeof(ukm));
- *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_CEK_ALG,
-                                         SN_id_smime_alg_CMS3DESwrap,
-                                         strlen(SN_id_smime_alg_CMS3DESwrap));
- *p = OSSL_PARAM_construct_end();
- if (EVP_KDF_CTX_set_params(kctx, params) <= 0)
-     error("EVP_KDF_CTX_set_params");
- if (EVP_KDF_derive(kctx, out, sizeof(out)) <= 0)
-     error("EVP_KDF_derive");
-
- EVP_KDF_CTX_free(kctx);
-
-=head1 CONFORMING TO
-
-RFC 2631
-
-=head1 SEE ALSO
-
-L<EVP_KDF(3)>,
-L<EVP_KDF_CTX_new(3)>,
-L<EVP_KDF_CTX_free(3)>,
-L<EVP_KDF_CTX_set_params(3)>,
-L<EVP_KDF_CTX_get_kdf_size(3)>,
-L<EVP_KDF_derive(3)>,
-L<EVP_KDF(3)/PARAMETERS>
-
-=head1 HISTORY
-
-This functionality was added to OpenSSL 3.0.
-
-=head1 COPYRIGHT
-
-Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
-
-Licensed under the Apache License 2.0 (the "License").  You may not use
-this file except in compliance with the License.  You can obtain a copy
-in the file LICENSE in the source distribution or at
-L<https://www.openssl.org/source/license.html>.
-
-=cut
diff --git a/doc/man7/OSSL_PROVIDER-FIPS.pod b/doc/man7/OSSL_PROVIDER-FIPS.pod
index b802efe215..7e2029b3eb 100644
--- a/doc/man7/OSSL_PROVIDER-FIPS.pod
+++ b/doc/man7/OSSL_PROVIDER-FIPS.pod
@@ -90,10 +90,18 @@ The OpenSSL FIPS provider supports these operations and algorithms:
 
 =item PBKDF2, see L<EVP_KDF-PBKDF2(7)>
 
+=item SSHKDF, see L<EVP_KDF-SSHKDF(7)>
+
 =item TLS1-PRF, see L<EVP_KDF-TLS1-PRF(7)>
 
 =item KBKDF, see L<EVP_KDF-KBKDF(7)>
 
+=item X942KDF-ASN1, see L<EVP_KDF-X942-ASN1(7)>
+
+=item X942KDF-CONCAT, see L<EVP_KDF-X942-CONCAT(7)>
+
+=item X963KDF, see L<EVP_KDF-X963(7)>
+
 =back
 
 =head2 Key Exchange
diff --git a/doc/man7/OSSL_PROVIDER-default.pod b/doc/man7/OSSL_PROVIDER-default.pod
index da6185c4d3..96144e2260 100644
--- a/doc/man7/OSSL_PROVIDER-default.pod
+++ b/doc/man7/OSSL_PROVIDER-default.pod
@@ -132,13 +132,16 @@ The OpenSSL default provider supports these operations and algorithms:
 
 =item KBKDF, see L<EVP_KDF-KB(7)>
 
-=item X942KDF, see L<EVP_KDF-X942(7)>
+=item X942KDF-ASN1, see L<EVP_KDF-X942-ASN1(7)>
+
+=item X942KDF-CONCAT, see L<EVP_KDF-X942-CONCAT(7)>
+
+=item X963KDF, see L<EVP_KDF-X963(7)>
 
 =item SCRYPT, see L<EVP_KDF-SCRYPT(7)>
 
 =item KRB5KDF, see L<EVP_KDF-KRB5KDF(7)>
 
-=item X963KDF, see L<EVP_KDF-X963(7)>
 
 =back