From 4fe788cc172e6c06f40a42ba516a60f21369018c Mon Sep 17 00:00:00 2001 From: Daiki Ueno Date: Tue, 2 May 2023 08:41:08 +0900 Subject: psk: Add basic support for RFC 9258 external PSK importer interface This adds a minimal, callback-based API to import external PSK, following RFC 9258. The client and the server importing external PSK are supposed to set a callback to retrieve PSK, which returns flags that may indicate the PSK is imported, along with the key: typedef int gnutls_psk_client_credentials_function3( gnutls_session_t session, gnutls_datum_t *username, gnutls_datum_t *key, gnutls_psk_key_flags *flags); typedef int gnutls_psk_server_credentials_function3( gnutls_session_t session, const gnutls_datum_t *username, gnutls_datum_t *key, gnutls_psk_key_flags *flags); Those callbacks are responsible to call gnutls_psk_format_imported_identity() for external PSKs to build a serialized PSK identity, and set GNUTLS_PSK_KEY_EXT in flags if the identity is an imported one. Signed-off-by: Daiki Ueno --- lib/libgnutls.map | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'lib/libgnutls.map') diff --git a/lib/libgnutls.map b/lib/libgnutls.map index 72e425c3a0..fae2070dfc 100644 --- a/lib/libgnutls.map +++ b/lib/libgnutls.map @@ -1409,6 +1409,16 @@ GNUTLS_3_7_7 *; } GNUTLS_3_7_5; +GNUTLS_3_8_1 +{ + global: + gnutls_psk_set_server_credentials_function3; + gnutls_psk_set_client_credentials_function3; + gnutls_psk_format_imported_identity; + local: + *; +} GNUTLS_3_7_7; + GNUTLS_FIPS140_3_4 { global: gnutls_cipher_self_test; -- cgit v1.2.1