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27 #ifndef MBEDTLS_HKDF_H
28 #define MBEDTLS_HKDF_H
36 #define MBEDTLS_ERR_HKDF_BAD_INPUT_DATA -0x5F80
68 size_t salt_len,
const unsigned char *ikm,
size_t ikm_len,
69 const unsigned char *info,
size_t info_len,
70 unsigned char *okm,
size_t okm_len );
97 const unsigned char *salt,
size_t salt_len,
98 const unsigned char *ikm,
size_t ikm_len,
128 size_t prk_len,
const unsigned char *info,
129 size_t info_len,
unsigned char *okm,
size_t okm_len );