329   const EVP_MD *prf = md->native_handle;  in ngtcp2_crypto_hkdf_extract()  local
336                                        (char *)EVP_MD_get0_name(prf), 0),  in ngtcp2_crypto_hkdf_extract()
347   if (EVP_KDF_derive(kctx, dest, (size_t)EVP_MD_size(prf), params) <= 0) {  in ngtcp2_crypto_hkdf_extract()
355   const EVP_MD *prf = md->native_handle;  in ngtcp2_crypto_hkdf_extract()
358   size_t destlen = (size_t)EVP_MD_size(prf);  in ngtcp2_crypto_hkdf_extract()
366       EVP_PKEY_CTX_set_hkdf_md(pctx, prf) != 1 ||  in ngtcp2_crypto_hkdf_extract()
384   const EVP_MD *prf = md->native_handle;  in ngtcp2_crypto_hkdf_expand()  local
391                                        (char *)EVP_MD_get0_name(prf), 0),  in ngtcp2_crypto_hkdf_expand()
410   const EVP_MD *prf = md->native_handle;  in ngtcp2_crypto_hkdf_expand()
419       EVP_PKEY_CTX_set_hkdf_md(pctx, prf) != 1 ||  in ngtcp2_crypto_hkdf_expand()
438   const EVP_MD *prf = md->native_handle;  in ngtcp2_crypto_hkdf()  local
443                                        (char *)EVP_MD_get0_name(prf), 0),  in ngtcp2_crypto_hkdf()
464   const EVP_MD *prf = md->native_handle;  in ngtcp2_crypto_hkdf()
474       EVP_PKEY_CTX_set_hkdf_md(pctx, prf) != 1 ||  in ngtcp2_crypto_hkdf()