-TODO/bugs in Irssi SILC client
+TODO for 1.2 And Beyond
+=======================
+
+NOTE: Any item that doesn't have (***DONE) in it, isn't done yet. The
+(***TESTING NEEDED) means that the item has been done but not yet properly
+tested.
+
+NOTE: A TODO entry does not mean that it is ever going to be done. Some
+of the entries may be just ideas, good, bad or ugly. If you want to work
+on some of the TODO entries simply let us know about it by dropping a note
+to silc-devel mailing list or appear on 'silc' channel on SILCNet.
+
+
+Crypto Library, lib/silccrypt/
==============================
- o GETKEY server will save the serverkey to the same filename as the
- connected server and thus destroys the key.
+ o Add fingerprint to SilcSILCPublicKey and retrieval to silcpk.h, and
+ possibly to silcpkcs.h.
+
+ /* Return fingerprint of the `public_key'. Returns also the algorithm
+ that has been used to make the fingerprint. */
+ const unsigned char *
+ silc_pkcs_get_fingerprint(SilcPublicKey public_key,
+ const char **hash_algorithm,
+ SilcUInt32 *fingerprint_len);
+
+ o Add CMAC and maybe others. Change needs rewrite of the internals of
+ the SILC Mac API, currently it's suitable only for HMACs.
+
+ o Global RNG must be changed to use SILC Global API.
+
+ o Global cipher, hash, mac, and pkcs tables must use SILC Global API.
+
+ o Add FIPS compliant RNG.
+
+ o Implement the defined SilcDH API. The definition is in
+ lib/silccrypt/silcdh.h. Make sure it is asynchronous so that it can
+ be accelerated. Also take into account that it could use elliptic
+ curves.
+
+ o Add Elgamal.
+
+ o Add ECDSA support.
+
+ o Add ECDH support.
+
+ o Add PKCS#1 RSAES-OAEP and RSASSA-PSS.
+
+ o Add GCM mode.
- o Add local command to switch the channel's private key when channel has
- several private keys. Currently sending channel messages with many
- keys is not possible because changing the key is not possible by the
- user.
+ o Do GCC vs ICC benchmarks of all key algorithms.
- o JOINing to +a (requires passphrase to JOIN) does not work on autojoin.
- Seems the passwords in the .silc/config has no effect.
+ o Add DSA support to SILC public key.
- o Add local commands to list the current server and client public keys
- that the user has. And a local command to dump the contents of the
- public key to the screen. Something like LISTKEYS, SHOWKEY...
+ o The asynchronous functions to perhaps to _async to preserve backwards
+ compatibility with synchronous versions, and make easier to migrate
+ from 1.1 to 1.2. (***DONE)
- o We should get rid of the clientconfig.[ch] in Irssi SILC and move the
- cipher, hash, hmac and pkcs configuration to the Irssi SILC's config
- file.
+ o AES CBC is missing proper alignment code. (***DONE)
- o Add PERL scripting support from Irssi CVS.
+ o silc_pkcs_public_key_alloc should accept also SILC_PKCS_ANY as argument
+ and try all supported PKCS until one succeeds. (***DONE)
- o Extend the /HELP command to support sub commands or something. So
- that user can say /help set mutual_authentication they would get
- help of the mutual_authentication setting.
+ o Associate a default hash function with all PKCS algorithms. User can
+ override it in silc_pkcs_sign. DSA with FIPS186-3 determines the
+ hash algorithm by the key length. (***DONE)
- o Set different kind of settings, like, /set mutual_authentication,
- /set key_exchange_timeout, /set conn_auth_timeout etc etc.
+ o Document all cipher names, hash names, mac names, pkcs names. (***DONE)
+ o SilcHmac must be replaced with generic SilcMac so that we can add
+ others than just HMAC algorithms. Backwards support (via #define's)
+ must be preserved. (***DONE)
-TODO/bugs In SILC Client Library
-================================
+ o Change the DSA implementation to support FIPS186-3. This means that
+ the q length is determined by the key length. (***DONE)
- o The PRIVATE_MESSAGE_KEY packet is not handled (it is implemented
- though). This should be added and perhaps new client operation
- should be added to notify application that it was received and
- set the key only if application wishes to set (accept the key) it.
+ o Add silc_crypto_init and silc_crypto_uninit. The _init should take
+ SilcStack that will act as global memory pool for all of crypto
+ library. It should not be necessary anymore to separately register
+ default ciphers, HMACs, etc, the _init would do that. However, if
+ user after _init calls silc_pkcs_register, for example, it would take
+ preference over the default once, ie. user can always dictate the
+ order of algorithms. (***DONE)
- o should /nick nick and /nick Nick cause the Nick to be Nick@host becase
- it used to be nick??
+ o Change SILC PKCS API to asynchronous, so that accelerators can be used.
+ All PKCS routines should now take callbacks as argument and they should
+ be delivered to SilcPKCSObject and SilcPKCSAlgorithm too. (***DONE)
- o When changing own nickname and there exists a same nickname the library
- can give the client now nickname in format nick@host. This is new
- behaviour and maybe should be removed. The changer should always
- get the one it wants and not have the formatted nickname.
+ o Change PKCS Algorithm API to take SilcPKCSAlgorithm as argument to
+ encrypt, decrypt, sign and verify functions. We may need to for exmaple
+ check the alg->hash, supported hash functions. Maybe deliver it also
+ to all other functions in SilcPKCSAlgorithm to be consistent. (***DONE)
- o Remove the command destructor all together from the client, it is
- not needed and its usage is buggy when the context is registered
- to multiple pending commands.
+ o Add DSS support. (***DONE)
- o Additions to do after protocol version 1.1:
+ o All cipher, hash, hmac etc. allocation routines should take their name
+ in as const char * not const unsigned char *. (***DONE)
- o Fix the NICK_CHANGE notify handling not to create new entry
- for the changed client, but take the nickname from the notify
- (removes need for resolving as well). Protocol TODO entry 3.
- o Add support for list of errors in command replies. Protocol
- TODO entry 1.
+SKR Library, lib/silcskr/
+=========================
+ o Add fingerprint as search constraint.
-TODO/bugs In SILC Server
+ o Add SSH support. (***DONE, TESTING NEEDED)
+
+ o Add OpenPGP support. Adding, removing, fetching PGP keys. (Keyring
+ support?)
+
+ o Add support for importing public keys from a directory and/or from a
+ file. Add support for exporting the repository (different formats for
+ different key types?).
+
+ o Add find rule AND and OR. The default is always AND. Add
+ silc_skr_find_set_rule.
+
+ o Add silc_skr_find_add_search_file that can be used to add a file to
+ search for the public keys. More than one can be set. Add support
+ for searching keys from file.
+
+ o Add silc_skr_find_add_search_dir that can be used to add a directory to
+ search for the public keys. More than one can be set. Add support
+ for seraching keys from directory.
+
+ o SilcStack to SKR API.
+
+
+SILC Accelerator Library
========================
- o strerror messages from premature EOF's to signoff messages.
- (add perhaps a socket error thingy to SilcSocketConnection).
-
- o Backup router related issues
-
- o Channel user mode changes are notified unnecessarely when
- switching to backup router on router crash.
-
- o Add a timeout to handling incoming JOIN commands. It should be
- enforced that JOIN command is executed only once in a second or two
- seconds. Now it is possible to accept n incoming JOIN commands
- and process them without any timeouts. THis must be employed because
- each JOIN command will create and distribute the new channel key
- to everybody on the channel.
-
- o New configuration file format must be added. The new one will be
- done using the dotconf config library (lib/dotconf). The following
- tasks relates closely to this as well and must be done at the same time
- when adding the new config file format:
-
- o Server says that it is able to listen on multiple ports but
- currently that is bogus. It can, but internals are for single
- server.
-
- o Protocol execution timeouts are hard coded, should be
- configurable.
-
- o IP address fields in configuration file should accept mask
- format as well, IP/MASK, and not just plain IP.
-
- o If client's public key is saved in the server (and doing public key
- authentication) then the hostname and the username information could
- be taken from the public key. Should be a configuration option!
-
-
-TODO/bugs In SILC Libraries
-===========================
-
- o make install copies the symblic links from lib/silcsim/ and not
- modules.
-
- o WIN32 silc_net_create_connection_async does not work the same way
- than on Unix. Do it with threads on WIN32. The function works but
- is not actually async currently.
-
- o Rewrite the lib/silcsim/silcsim.h. The SilcSimContext should be
- private and silc_sim_alloc should take necessary arguments.
-
-
-TODO in SILC Protocol
-=====================
-
-Current protocol version is 1.0. However, it is far from being perfect,
-and needs to include additional features. Following protocol TODO entries
-describe new stuff to be added to protocol versions 1.x.
-
- 1. Re-define the Status Payload: it is now 16 bits, split it into two
- 8 bits fields. First field includes status types from 0 - 9 and
- 10 - n *if* it is not an list of errors. If it is list of errors then
- the first field includes 1, 2 and/or 3, and the second field includes
- the error status 10 - n. This way it is possible to send multiple
- errors (list of errors) and we have a way to tell the receiver that
- there will be other errors as well. The second field is used only
- if there is list of errors. If normal status, or normal (single)
- error status the second field is set to zero, and must be ignored.
- Hence, the status works same way as now except for list of errors.
- To be included in protocol version 1.1.
-
- 2. Define that WHOIS and IDENTIFY commands must send list of errors
- if multiple Client ID (or Channel ID and Server ID for IDENTIFY) was
- requested and was not found. Each unfound entry must cause an error
- command reply to the sender. Also define that errors must be sent
- *after* sending successfully found entries (this way receiver may
- ignore them). To be included in protocol version 1.1.
-
- 3. Define the NICK_CHANGE notify to send the changed nickname as a new
- third argument. This will make the NICK_CHANGE notify handling easier
- in the receiver's end (client primarily) since it removes the
- requirement that receiver must resolve (using IDENTIFY or WHOIS) the
- new Client ID received in the notify (because of the new nickname is
- unknown). To be included in protocol version 1.1.
-
- 4. Add "request parameters" or similar to the WHOIS command, which can
- be used to request various parameters (something not returned by
- standard WHOIS command) about clients (info that could be fetched
- even from clients). Additional specification (or appendix) should
- be done to define the payload and the parameters. It could be used
- to make the WHOIS command support various search conditions as well.
- This would be the way to extend the WHOIS command to support various
- new features without always making the command incompatible to previous
- version. To be included in protocol version 1.1.
-
- 5. Inviting and banning by public key should be made possible. To be
- included in protocol version 1.x.
-
- 6. Add perhaps SILENCE_USERS, SILENCE_OPERS channel user modes which
- can be used to silence (moderate) normal users and opers (this set
- only by founder). To be included in protocol version 1.1.
-
- 7. Channel Message Payload needs slight redesining to include the IV
- field to the MAC generation of the payload. It is authenticated
- by the packet's MAC but not by the payload's MAC. Since the IV
- belongs to the payload, its integrity should be protected by the
- payload MAC and not alone by packet MAC. To be included in protocol
- version 1.1.
-
-
-TODO After 1.0
-==============
-
- o Compression routines are missing. The protocol supports packet
- compression thus it must be implemented. SILC Zip API must be
- defined. zlib package is already included into the lib dir (in CVS,
- not in distribution), but it is not used yet, and it requires some
- tweaking on the Makefiles (we want static lib not shared).
+ o Diffie-Hellman acceleration to SILC Accelerator API.
- o Implement the defined SilcDH API. The definition is in
- lib/silccrypt/silcdh.h.
+ o Diffie-Hellman software acceleration.
+
+ o Hardware acceleration through OCF (OCF-Linux,
+ http://ocf-linux.sourceforge.net).
+
+ o VIA Padlock support. See http://www.logix.cz/michal/devel/padlock/ and
+ Gladman's code.
+
+ o Implement GCM software acceleration.
+
+ o Add hash function acceleration to SILC Accelerator API.
+
+ o SILC Accelerator API. Provides generic way to use different kind of
+ accelerators. Basically implements SILC PKCS API so that SilcPublicKey
+ and SilcPrivateKey can be used but they call the accelerators.
+ (***DONE)
+
+ o Implement software accelerator. It is a thread pool system where the
+ public key and private key operations are executed in threads.
+ (***DONE)
+
+ o Add SilcCipher support to SilcAccelerator and software accelerator.
+ Accelerate at least ciphers using CTR mode which can be done in
+ parallel. Do it in producer/consumer fashion where threads generate
+ key stream and other thread(s) encrypt using the key stream. (***DONE)
+
+
+lib/silcmath
+============
+
+ o Prime generation progress using callback instead of printing to
+ stdout.
+
+ o All utility functions should be made non-allocating ones.
+
+ o Import TFM. We want TFM's speed but its memory requirements are
+ just too much. By default it uses large pre-allocated tables which
+ will eat memory when there are thousands of public keys in system.
+ We probably want to change TFM. (***DONE)
+
+ o Add AND, OR and XOR support to TFM. (***DONE)
+
+ o The SILC MP API function must start returning indication of success
+ and failure of the operation. (***DONE)
+
+ o Do SilcStack support for silc_mp_init and other MP function
+ (including utility ones) that may allocate memory. (***DONE)
+
+
+lib/silcasn1
+============
+
+ o Negative integer encoding is missing, add it.
+
+ o SILC_ASN1_CHOICE should perhaps return an index what choice in the
+ choice list was found. Currently it is left for caller to figure out
+ which choice was found. (***DONE)
+
+ o SILC_ASN1_NULL in decoding should return SilcBool whether or not
+ the NULL was present. It's important when it's SILC_ASN1_OPTIONAL
+ and we need to know whether it was present or not. (***DONE)
+
+
+lib/silcpgp
+===========
+
+ o OpenPGP certificate support, allowing the use of PGP public keys and
+ private keys.
+
+ o Signatures for data, public keys and private keys (Signature packet).
+
+ o Signature verification from public keys, private keys and other signed
+ data (Signature packet).
+
+ o Encryption and decryption support (Packet tags 8 and 18 most likely).
+
+ o Retrieval of User ID from public key and private key (Used ID packet
+ and User Attribute packet).
+
+ o Creation of OpenPGP key pairs.
+
+ o Trust packet handling (GNU PG compatible) from public and private keys.
+
+ o Add option that the signature format doesn't use the OpenPGP format
+ but whatever is the default in SILC crypto library.
+
+
+lib/silcssh
+===========
+
+ o Add option that the signature format doesn't use the SSH2 protocol
+ but whatever is the default in SILC crypto library;
+ silc_ssh_private_key_set_signature_type, or something.
+
+ o SSH2 public key/private key support, allowing the use of SSH2 keys.
+ RFC 4716. (***DONE)
+
+
+lib/silcpkix
+============
- o Add builtin SOCKS and HTTP Proxy support, well the SOCKS at least.
- SILC currently supports SOCKS4 and SOCKS5 but it needs to be compiled
- in separately.
+ o PKIX implementation
- o X.509 certificate support. SILC protocol supports certificates and
- it would be great to have support for them. This is a big task as
- support has to be made for ASN.1 as well. I've looked into OpenSSL
- package as it has X.509 certificate support (and ASN.1 as well).
- The code does not look very good to my eye but it has some potentials.
- This should be looked at more closely.
- Naturally own SILC Certificate API has to be defined regardles what
- the actual X.509 library is (OpenSSL X.509 or something else). Other
- choice is to write own X.509 library but I'm not going to do it -
- I can help to migrate the OpenSSL X.509 into SILC and I can help if
- someone would like to write the X.509 library - but I'm not going
- to start writing one myself. Anyhow, the OpenSSL X.509 lib should
- be checked.
+lib/silccms
+===========
- Other package that should be checked is the NSS's X509 library,
- which I like more over OpenSSL package.
+ o Cryptographic Message Syntax (RFC 3852), the former PKCS #7
- o SSH2 public keys support.
- o OpenPGP certificate support.
+lib/silcsmime
+=============
- o Cipher optimizations (asm, that this) at least for i386 would be nice.
+ o S/MIME (RFC 3851)
projects / crypto.git / blobdiff