1KCAPI_PBKDF(3)               Programming Interface              KCAPI_PBKDF(3)
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NAME

6       kcapi_pbkdf - Password-based Key Derivation Function
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SYNOPSIS

9       ssize_t kcapi_pbkdf(const char * hashname, const uint8_t * pw,
10                           uint32_t pwlen, const uint8_t * salt,
11                           size_t saltlen, uint32_t count, uint8_t * key,
12                           size_t keylen);
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ARGUMENTS

15       hashname
16           [in] kernel crypto API name of a keyed hash (e.g. hmac(sha1))
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18       pw
19           [in] Password a key shall be derived from
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21       pwlen
22           [in] Length of password string
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24       salt
25           [in] Salt as defined in SP800-132
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27       saltlen
28           [in] Length of salt buffer
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30       count
31           [in] Numbers of iterations to be performed for the PBKDF
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33       key
34           [out] Buffer to store the generated key in
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36       keylen
37           [in] Size of the key to be generated (i.e. length of the key
38           buffer)
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DESCRIPTION

41       This function is an implementation of the PBKDF as defined in
42       SP800-132.
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44       return 0 upon success; a negative errno-style error code if an error
45       occurred
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AUTHOR

48       Stephan Mueller <smueller@chronox.de>
49           Author.
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52libkcapi Manual 1.4.0            January 2023                   KCAPI_PBKDF(3)
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