wpa_supplicant/devel/sha256_8h_source.html

 #ifndef SHA256_H

 #define SHA256_H


 #define SHA256_MAC_LEN 32


 int hmac_sha256_vector(const u8 *key, size_t key_len, size_t num_elem,

                        const u8 *addr[], const size_t *len, u8 *mac);

 int hmac_sha256(const u8 *key, size_t key_len, const u8 *data,

                 size_t data_len, u8 *mac);

 void sha256_prf(const u8 *key, size_t key_len, const char *label,

               const u8 *data, size_t data_len, u8 *buf, size_t buf_len);

 void sha256_prf_bits(const u8 *key, size_t key_len, const char *label,

                      const u8 *data, size_t data_len, u8 *buf,

                      size_t buf_len_bits);

 void tls_prf_sha256(const u8 *secret, size_t secret_len,

                     const char *label, const u8 *seed, size_t seed_len,

                     u8 *out, size_t outlen);

 int hmac_sha256_kdf(const u8 *secret, size_t secret_len,

                     const char *label, const u8 *seed, size_t seed_len,

                     u8 *out, size_t outlen);


 #endif /* SHA256_H */

hmac_sha256_kdf
int hmac_sha256_kdf(const u8 *secret, size_t secret_len, const char *label, const u8 *seed, size_t seed_len, u8 *out, size_t outlen)
HMAC-SHA256 based KDF (RFC 5295)
Definition: sha256-kdf.c:25

tls_prf_sha256
void tls_prf_sha256(const u8 *secret, size_t secret_len, const char *label, const u8 *seed, size_t seed_len, u8 *out, size_t outlen)
Pseudo-Random Function for TLS v1.2 (P_SHA256, RFC 5246)
Definition: sha256-tlsprf.c:25

hmac_sha256
int hmac_sha256(const u8 *key, size_t key_len, const u8 *data, size_t data_len, u8 *mac)
HMAC-SHA256 over data buffer (RFC 2104)
Definition: sha256.c:96

sha256_prf_bits
void sha256_prf_bits(const u8 *key, size_t key_len, const char *label, const u8 *data, size_t data_len, u8 *buf, size_t buf_len_bits)
IEEE Std 802.11-2012, 11.6.1.7.2 Key derivation function.
Definition: sha256-prf.c:47

hmac_sha256_vector
int hmac_sha256_vector(const u8 *key, size_t key_len, size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
HMAC-SHA256 over data vector (RFC 2104)
Definition: sha256.c:22

sha256_prf
void sha256_prf(const u8 *key, size_t key_len, const char *label, const u8 *data, size_t data_len, u8 *buf, size_t buf_len)
SHA256-based Pseudo-Random Function (IEEE 802.11r, 8.5.1.5.2)
Definition: sha256-prf.c:25