scd:p15: Support ECDSA and ECDH for CardOS.
* scd/iso7816.c (iso7816_pso_csv): New. * scd/app-help.c (app_help_pubkey_from_cert): Uncompress a point if needed. * scd/app-p15.c (CARD_PRODUCT_RSCS): New. (struct prkdf_object_s): Add fields is_ecc, token_label, and tokenflags. (do_deinit): Free new fields. (cardproduct2str): New. (read_ef_prkdf): Set new is_ecc flag. (read_ef_tokeninfo): Store some data and move Tokeninfo diags to ... (read_p15_info): here. set the product info here after all data has been gathered. (send_keypairinfo): Chnage the way the gpgusage flags are used. (make_pin_prompt): If the token has a label and the current cert has no CN, show the label as holder info. (do_sign): Support ECDSA. Take care of the gpgusage flags. (do_decipher): Support ECDH. Take care of the gpgusage flags.
This has been tested with Trusted Object Manager generated cards by
Rohde & Schwarz Cybersecurity.
- Signed-off-by: Werner Koch <firstname.lastname@example.org>