| Function | Description | Links |
| getkeys() | Get the keys for a mailbox | |
| openssl_md_to_smime_micalg() | Change the algorithm names | |
| smime_ask_for_key() | Ask the user to select a key | |
| smime_class_application_handler() | Manage the MIME type "application/pgp" or "application/smime" | CryptModuleSpecs::application_handler(), crypto_application_handler |
| smime_class_build_smime_entity() | Encrypt the email body to all recipients | CryptModuleSpecs::smime_build_smime_entity(), crypto_smime_build_smime_entity |
| smime_class_decrypt_mime() | Decrypt an encrypted MIME part | CryptModuleSpecs::decrypt_mime(), crypto_decrypt_mime |
| smime_class_find_keys() | Find the keyids of the recipients of a message | CryptModuleSpecs::find_keys(), crypto_find_keys |
| smime_class_getkeys() | Get the S/MIME keys required to encrypt this email | CryptModuleSpecs::smime_getkeys(), crypto_smime_getkeys |
| smime_class_invoke_import() | Add a certificate and update index file (externally) | CryptModuleSpecs::smime_invoke_import(), crypto_smime_invoke_import |
| smime_class_send_menu() | Ask the user whether to sign and/or encrypt the email | CryptModuleSpecs::send_menu(), crypto_send_menu |
| smime_class_sign_message() | Cryptographically sign the Body of a message | CryptModuleSpecs::sign_message(), crypto_sign_message |
| smime_class_valid_passphrase() | Ensure we have a valid passphrase | CryptModuleSpecs::valid_passphrase(), crypto_valid_passphrase |
| smime_class_verify_one() | Check a signed MIME part against a signature | CryptModuleSpecs::verify_one(), crypto_verify_one |
| smime_class_verify_sender() | Does the sender match the certificate? | CryptModuleSpecs::smime_verify_sender(), crypto_smime_verify_sender |
| smime_class_void_passphrase() | Forget the cached passphrase | CryptModuleSpecs::void_passphrase(), crypto_void_passphrase |
| smime_cleanup() | Clean up smime globals | |
| smime_command() | Format an SMIME command string | |
| smime_copy_key() | Copy an SMIME key | |
| smime_extract_certificate() | Extract an SMIME certificate from a file | |
| smime_extract_signer_certificate() | Extract the signer's certificate | |
| smime_get_candidates() | Find keys matching a string | |
| smime_get_key_by_addr() | Find an SIME key by address | |
| smime_get_key_by_hash() | Find a key by its hash | |
| smime_get_key_by_str() | Find an SMIME key by string | |
| smime_handle_cert_email() | Process an email containing certificates | |
| smime_handle_entity() | Handle type application/pkcs7-mime | |
| smime_init() | Initialise smime globals | |
| smime_invoke() | Run an SMIME command | |
| smime_invoke_decrypt() | Use SMIME to decrypt a file | |
| smime_invoke_encrypt() | Use SMIME to encrypt a file | |
| smime_invoke_sign() | Use SMIME to sign a file | |
| smime_invoke_verify() | Use SMIME to verify a file | |
| smime_key_free() | Free a list of SMIME keys | |
| smime_parse_key() | Parse an SMIME key block | |
