Explicitely document what semantic meaning do various EVP_KDF
algorithms produce.
PBKDF2 produces cryptographic keys that are subject to cryptographic
security measures, for example as defined in NIST SP 800-132.
All other algorithms produce keying material, not subject to explicit
output length checks in any known standards.
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25610)
Similar to other KDFs, the input key should be 112 bits long.
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25529)
Replaced OSSL_KDF_PARAM_KEY with OSSL_KDF_PARAM_SECRET as that seems to be the intended value from the code (OSSL_KDF_PARAM_KEY is also supported but looks like a fallback).
Fixed name for OSSL_KDF_PARAM_X942_USE_KEYBITS.
CLA: trivial
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18878)
This 'special' way of specifying the data should only be used for testing
purposes. It should not be used in production environments.
ACVP passes a blob of DER encoded data for some of the fields rather
than passing them as separate fields that need to be DER encoded.
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14077)
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)
