1KCAPI_AKCIPHER_SETPU(3) Programming Interface KCAPI_AKCIPHER_SETPU(3)
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6 kcapi_akcipher_setpubkey - set the public key for the cipher handle
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9 int kcapi_akcipher_setpubkey(struct kcapi_handle * handle,
10 const uint8_t * key, uint32_t keylen);
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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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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 { n INTEGER ({ rsa_get_n }), e INTEGER ({ rsa_get_e }) }
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30 After the caller provided the key, the caller may securely destroy the
31 key as it is now maintained by the kernel.
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33 return upon success the value of the maximum size for the asymmetric
34 operation is returned (e.g. the modulus size); a negative errno-style
35 error code if an error occurred
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38 Stephan Mueller <smueller@chronox.de>
39 Author.
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42libkcapi Manual 1.1.4 February 2019 KCAPI_AKCIPHER_SETPU(3)