NAME

       EVP_KDF-PVKKDF - The PVK EVP_KDF implementation

DESCRIPTION

       Support for computing the PVK KDF PIN-based KDF through the EVP_KDF API.

       The EVP_KDF-PVKKDF algorithm implements a PVK PIN-based key derivation function; it derives a key from a
       password using a salt.

   Identity
       "PVKKDF" is the name for this implementation; it can be used with the EVP_KDF_fetch() function.

   Supported parameters
       The supported parameters are:

       "pass" (OSSL_KDF_PARAM_PASSWORD) <octet string>
       "salt" (OSSL_KDF_PARAM_SALT) <octet string>
       "properties" (OSSL_KDF_PARAM_PROPERTIES) <UTF8 string>
       "digest" (OSSL_KDF_PARAM_DIGEST) <UTF8 string>
           These parameters work as described in "PARAMETERS" in EVP_KDF(3).

NOTES

       A  typical  application of this algorithm is to derive keying material for an encryption algorithm from a
       password in the "pass" and a salt in "salt".

       No assumption is made regarding the given password; it is simply treated as a byte sequence.

       The legacy provider needs to be available in order to access this algorithm.

SEE ALSO

       EVP_KDF(3),  EVP_KDF_CTX_new(3),   EVP_KDF_CTX_free(3),   EVP_KDF_CTX_set_params(3),   EVP_KDF_derive(3),
       "PARAMETERS" in EVP_KDF(3), OSSL_PROVIDER-legacy(7)

HISTORY

       This functionality was added in OpenSSL 3.2.

COPYRIGHT

       Copyright 2021 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
       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                               EVP_KDF-PVKKDF(7SSL)