EVP_KDF-PBKDF1(7ossl) OpenSSL EVP_KDF-PBKDF1(7ossl)
NAME
EVP_KDF-PBKDF1 - The PBKDF1 EVP_KDF implementation
DESCRIPTION
Support for computing the PBKDF1 password-based KDF through the EVP_KDF
API.
The EVP_KDF-PBKDF1 algorithm implements the PBKDF1 password-based key
derivation function, as described in RFC 8018; it derives a key from a
password using a salt and iteration count.
Identity
"PBKDF1" 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>
"iter" (OSSL_KDF_PARAM_ITER) <unsigned integer>
This parameter has a default value of 0 and should be set.
"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", a salt in
"salt", and an iteration count.
Increasing the "iter" parameter slows down the algorithm which makes it
harder for an attacker to perform a brute force attack using a large
number of candidate passwords.
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.
CONFORMING TO
RFC 8018
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 3.0.
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>.
3.3.2 2024-09-04 EVP_KDF-PBKDF1(7ossl)
openssl 3.3.2 - Generated Tue Oct 1 10:50:16 CDT 2024