hkdf.h

Go to the documentation of this file.

#ifndef QUIC_HKDF_HKDF_H
#define QUIC_HKDF_HKDF_H
 
#include "crypto/symmetric/hash/hash/hmac.h"


#define QUIC_HKDF_PRK QUIC_SHA256_DIGEST

#define QUIC_HKDF_PRK_384 QUIC_SHA384_DIGEST

typedef struct {
  const char* label;     
  usz         label_len; 
  quic_span   ctx;       
} quic_hkdf_label;

void quic_hkdf_extract(quic_span salt, quic_span ikm, u8 prk[QUIC_HKDF_PRK]);

int quic_hkdf_expand(
    const u8 prk[QUIC_HKDF_PRK], quic_span info, quic_mspan okm);

int quic_hkdf_expand_label(
    const u8 prk[QUIC_HKDF_PRK], const quic_hkdf_label* l, quic_mspan okm);

void quic_hkdf_extract_384(
    quic_span salt, quic_span ikm, u8 prk[QUIC_HKDF_PRK_384]);

int quic_hkdf_expand_384(
    const u8 prk[QUIC_HKDF_PRK_384], quic_span info, quic_mspan okm);

int quic_hkdf_expand_label_384(
    const u8 prk[QUIC_HKDF_PRK_384], const quic_hkdf_label* l, quic_mspan okm);
 
#endif