599 static srtp_err_status_t srtp_kdf_init(srtp_kdf_t *kdf,  in srtp_kdf_init()  argument
604     memset(kdf, 0x0, sizeof(srtp_kdf_t));  in srtp_kdf_init()
615         kdf->evp = EVP_aes_256_ctr();  in srtp_kdf_init()
618         kdf->evp = EVP_aes_192_ctr();  in srtp_kdf_init()
621         kdf->evp = EVP_aes_128_ctr();  in srtp_kdf_init()
627     memcpy(kdf->master_key, key, key_len);  in srtp_kdf_init()
628     memcpy(kdf->master_salt, key + key_len, salt_len);  in srtp_kdf_init()
632 static srtp_err_status_t srtp_kdf_generate(srtp_kdf_t *kdf,  in srtp_kdf_generate()  argument
640     if (!kdf->evp)  in srtp_kdf_generate()
649     ret = kdf_srtp(kdf->evp, (char *)&kdf->master_key,  in srtp_kdf_generate()
650                    (char *)&kdf->master_salt, NULL, NULL, label, (char *)key);  in srtp_kdf_generate()
658 static srtp_err_status_t srtp_kdf_clear(srtp_kdf_t *kdf)  in srtp_kdf_clear()  argument
660     octet_string_set_to_zero(kdf->master_key, MAX_SRTP_AESKEY_LEN);  in srtp_kdf_clear()
661     octet_string_set_to_zero(kdf->master_salt, MAX_SRTP_SALT_LEN);  in srtp_kdf_clear()
662     kdf->evp = NULL;  in srtp_kdf_clear()
677 static srtp_err_status_t srtp_kdf_init(srtp_kdf_t *kdf,  in srtp_kdf_init()  argument
699     stat = srtp_crypto_kernel_alloc_cipher(cipher_id, &kdf->cipher, key_len, 0);  in srtp_kdf_init()
703     stat = srtp_cipher_init(kdf->cipher, key);  in srtp_kdf_init()
705         srtp_cipher_dealloc(kdf->cipher);  in srtp_kdf_init()
711 static srtp_err_status_t srtp_kdf_generate(srtp_kdf_t *kdf,  in srtp_kdf_generate()  argument
723     status = srtp_cipher_set_iv(kdf->cipher, (uint8_t *)&nonce,  in srtp_kdf_generate()
730     status = srtp_cipher_encrypt(kdf->cipher, key, &length);  in srtp_kdf_generate()
737 static srtp_err_status_t srtp_kdf_clear(srtp_kdf_t *kdf)  in srtp_kdf_clear()  argument
740     status = srtp_cipher_dealloc(kdf->cipher);  in srtp_kdf_clear()
743     kdf->cipher = NULL;  in srtp_kdf_clear()
870     srtp_kdf_t kdf;  in srtp_stream_init_keys()  local
938     stat = srtp_kdf_init(&kdf, (const uint8_t *)tmp_key, rtp_base_key_len,  in srtp_stream_init_keys()
941     stat = srtp_kdf_init(&kdf, (const uint8_t *)tmp_key, kdf_keylen);  in srtp_stream_init_keys()
950     stat = srtp_kdf_generate(&kdf, label_rtp_encryption, tmp_key,  in srtp_stream_init_keys()
968         stat = srtp_kdf_generate(&kdf, label_rtp_salt,  in srtp_stream_init_keys()
1055             xtn_hdr_kdf = &kdf;  in srtp_stream_init_keys()
1103         if (xtn_hdr_kdf != &kdf) {  in srtp_stream_init_keys()
1115     stat = srtp_kdf_generate(&kdf, label_rtp_msg_auth, tmp_key,  in srtp_stream_init_keys()
1144     stat = srtp_kdf_generate(&kdf, label_rtcp_encryption, tmp_key,  in srtp_stream_init_keys()
1161         stat = srtp_kdf_generate(&kdf, label_rtcp_salt,  in srtp_stream_init_keys()
1188     stat = srtp_kdf_generate(&kdf, label_rtcp_msg_auth, tmp_key,  in srtp_stream_init_keys()
1210     stat = srtp_kdf_clear(&kdf);  in srtp_stream_init_keys()