1EVP_KDF-PBKDF1(7ossl)               OpenSSL              EVP_KDF-PBKDF1(7ossl)
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NAME

6       EVP_KDF-PBKDF1 - The PBKDF1 EVP_KDF implementation
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DESCRIPTION

9       Support for computing the PBKDF1 password-based KDF through the EVP_KDF
10       API.
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12       The EVP_KDF-PBKDF1 algorithm implements the PBKDF1 password-based key
13       derivation function, as described in RFC 8018; it derives a key from a
14       password using a salt and iteration count.
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16   Identity
17       "PBKDF1" is the name for this implementation; it can be used with the
18       EVP_KDF_fetch() function.
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20   Supported parameters
21       The supported parameters are:
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23       "pass" (OSSL_KDF_PARAM_PASSWORD) <octet string>
24       "salt" (OSSL_KDF_PARAM_SALT) <octet string>
25       "iter" (OSSL_KDF_PARAM_ITER) <unsigned integer>
26           This parameter has a default value of 0 and should be set.
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28       "properties" (OSSL_KDF_PARAM_PROPERTIES) <UTF8 string>
29       "digest" (OSSL_KDF_PARAM_DIGEST) <UTF8 string>
30           These parameters work as described in "PARAMETERS" in EVP_KDF(3).
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NOTES

33       A typical application of this algorithm is to derive keying material
34       for an encryption algorithm from a password in the "pass", a salt in
35       "salt", and an iteration count.
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37       Increasing the "iter" parameter slows down the algorithm which makes it
38       harder for an attacker to perform a brute force attack using a large
39       number of candidate passwords.
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41       No assumption is made regarding the given password; it is simply
42       treated as a byte sequence.
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CONFORMING TO

45       RFC 8018
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SEE ALSO

48       EVP_KDF(3), EVP_KDF_CTX_new(3), EVP_KDF_CTX_free(3),
49       EVP_KDF_CTX_set_params(3), EVP_KDF_derive(3), "PARAMETERS" in
50       EVP_KDF(3)
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HISTORY

53       This functionality was added to OpenSSL 3.0.
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56       Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
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58       Licensed under the Apache License 2.0 (the "License").  You may not use
59       this file except in compliance with the License.  You can obtain a copy
60       in the file LICENSE in the source distribution or at
61       <https://www.openssl.org/source/license.html>.
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653.0.5                             2022-11-01             EVP_KDF-PBKDF1(7ossl)
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