1KCAPI_AKCIPHER_SETKE(3)      Programming Interface     KCAPI_AKCIPHER_SETKE(3)
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NAME

6       kcapi_akcipher_setkey - set the private key for the cipher handle
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SYNOPSIS

9       int kcapi_akcipher_setkey(struct kcapi_handle * handle,
10                                 const uint8_t * key, uint32_t keylen);
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ARGUMENTS

13       handle
14           [in] cipher handle
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16       key
17           [in] key buffer in DER format
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19       keylen
20           [in] length of key buffer
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DESCRIPTION

23       With this function, the caller sets the key for subsequent cipher
24       operations.
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26       The key must be in DER format as follows
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28       SEQUENCE { version INTEGER, n INTEGER ({ rsa_get_n }), e INTEGER ({
29       rsa_get_e }), d INTEGER ({ rsa_get_d }), prime1 INTEGER, prime2
30       INTEGER, exponent1 INTEGER, exponent2 INTEGER, coefficient INTEGER }
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32       After the caller provided the key, the caller may securely destroy the
33       key as it is now maintained by the kernel.
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35       return upon success the value of the maximum size for the asymmetric
36       operation is returned (e.g. the modulus size); a negative errno-style
37       error code if an error occurred
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AUTHOR

40       Stephan Mueller <smueller@chronox.de>
41           Author.
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44libkcapi Manual 1.3.1              July 2021           KCAPI_AKCIPHER_SETKE(3)
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