X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=TODO;h=0132fb66835dddea66c67b58b17aa30bdcb77f84;hb=be52e8850f90e718c6df066c588af839cc287ef5;hp=ac0175a6e883f6b400f734999754c159f8fa4bf8;hpb=c496063e2dcbce20ed4dbe221240921960d2f9c0;p=silc.git diff --git a/TODO b/TODO index ac0175a6..0132fb66 100644 --- a/TODO +++ b/TODO @@ -54,6 +54,8 @@ lib/silccore lib/silcclient, The Client Library ================================== + o UDP SILC connection support to SILC server + o Giving WHOIS for nick that doesn't exist should remove any same named entries from the client cache. @@ -161,9 +163,9 @@ Runtime library, lib/silcutil/ o Structured log messages to Log API. Allows machine readable log messages. Would allow sending of any kind of data in a log message. - o Base64 to an own API + o Base64 to an own API (***DONE) - o Timer API + o Timer API (***DONE) 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 @@ -216,6 +218,9 @@ Runtime library, lib/silcutil/ silc_snprintf(buf, sizeof(buf), "Client ID %@", id_renderer, client_id); + o Change silc_gettimeofday on Unix to use clock_gettime with REALTIME + clock if it is available, otherwise use gettimeofday(). + (o Generic SilcStatus or SilcResult that includes all possible status and error conditions, including those of SILC protocol. Though, the SILC protocol related status (currently in silcstatus.h) cannot be in @@ -289,7 +294,13 @@ SKR Library, lib/silcskr/ Crypto Library, lib/silccrypt/ ============================== - o SilcStack to APIs. + 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 Add fingerprint to SilcSILCPublicKey and retrieval to silcpk.h, and possibly to silcpkcs.h. @@ -303,74 +314,28 @@ Crypto Library, lib/silccrypt/ 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. - - /* Signature computation callback */ - typedef void (*SilcPKCSSignCb)(SilcBool success, - const unsigned char *signature, - SilcUInt32 signature_len, - void *context); - - /* Signature verification callback */ - typedef void (*SilcPKCSVerifyCb)(SilcBool success, void *context); - - /* Encryption callback */ - typedef void (*SilcPKCSEncryptCb)(SilcBool success, - const unsigned char *encrypted, - SilcUInt32 encrypted_len, - void *context); - - /* Decryption callback */ - typedef void (*SilcPKCSDecryptCb)(SilcBool success, - const unsigned char *decrypted, - SilcUInt32 decrypted_len, - void *context); - - Either add new _async functions or add the callbacks to existing API - and if the callback is NULL then the API is not async and if provided - it may be async. For example; - - SilcBool silc_pkcs_sign(SilcPrivateKey private_key, - unsigned char *src, SilcUInt32 src_len, - unsigned char *dst, SilcUInt32 dst_size, - SilcUInt32 *dst_len, - SilcBool compute_hash, SilcHash hash, - SilcPKCSSignCb async_sign, - void *async_sign_context); - - (if this is done then there's no reason why the buffers in the - callbacks cannot be the ones user gives here) or allow only async: - - SilcBool silc_pkcs_sign(SilcPrivateKey private_key, - unsigned char *src, SilcUInt32 src_len, - SilcBool compute_hash, SilcHash hash, - SilcPKCSSignCb async_sign, - void *async_sign_context); - - or add new: - - SilcBool silc_pkcs_sign_async(SilcPrivateKey private_key, - unsigned char *src, SilcUInt32 src_len, - SilcBool compute_hash, SilcHash hash, - SilcPKCSSignCb async_sign, - void *async_sign_context); + be delivered to SilcPKCSObject and SilcPKCSAlgorithm too. (***DONE) 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. + to all other functions in SilcPKCSAlgorithm to be consistent. (***DONE) - o Add DSS support. Take implementation from Tom or make it yourself. + o Add DSA support to SILC public key. + + o Add DSS support. (***DONE) 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 ECDSA and ECDH + o Add ECDSA support. + + o Add ECDH support. o All cipher, hash, hmac etc. allocation routines should take their name - in as const char * not const unsigned char *. + in as const char * not const unsigned char *. (***DONE) SILC Accelerator Library @@ -379,83 +344,13 @@ SILC Accelerator Library 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. - - Something in the lines of (preliminary): - - /* Register accelerator to system. Initializes the accelerator. */ - Varargs are optional accelerator specific init parameteres. */ - SilcBool silc_acc_register(SilcAccelerator acc, ...); - - silc_acc_register(softacc, "min_threads", 2, "max_threads", 16, NULL); - - /* Unregister accelerator. Uninitializes the accelerator. */ - SilcBool silc_acc_unregister(const SilcAccelerator acc); - - /* Return list of the registered accelerators */ - SilcDList silc_acc_get_supported(void); - - /* Find existing accelerator. `name' is accelerator's name. */ - SilcAccelerator silc_acc_find(const char *name); - - /* Return accelerator's name */ - const char *silc_acc_get_name(SilcAccelerator acc); - - /* Accelerate `public_key'. Return accelerated public key. */ - SilcPublicKey silc_acc_public_key(SilcAccelerator acc, - SilcPublicKey public_key); - - /* Accelerate `private_key'. Returns accelerated private key. */ - SilcPrivateKey silc_acc_private_key(SilcAccelerator acc, - SilcPrivateKey private_key); - - /* Return the underlaying public key */ - SilcPublicKey silc_acc_get_public_key(SilcAccelerator acc, - SilcPublicKey public_key); - - /* Return the underlaying private key */ - SilcPrivateKey silc_acc_get_private_key(SilcAccelerator acc, - SilcPrivateKey private_key); - - typedef struct SilcAcceleratorObject { - const char *name; /* Accelerator's name */ - SilcBool (*init)(va_list va); /* Initialize accelerator */ - SilcBool (*uninit)(void); /* Uninitialize accelerator */ - const SilcPKCSAlgorithm *pkcs; /* Accelerated PKCS algorithms */ - const SilcDHObject *dh; /* Accelerated Diffie-Hellmans */ - const SilcCipherObject *cipher; /* Accelerated ciphers */ - const SilcHashObject *hash; /* Accelerated hashes */ - const SilcHmacObject *hmac; /* Accelerated HMACs */ - const SilcRngObject *rng; /* Accelerated RNG's */ - } *SilcAccelerator, SilcAcceleratorStruct; - - Allows accelerator to have multiple accelerators (cipher, hash etc) - and multiple different algorithms and implementations (SHA-1, SHA-256 etc). - - SilcPublicKey->SilcSILCPublicKey->RsaPublicKey accelerated as: - SilcPublicKey->SilcAcceleratorPublicKey->SilcSoftAccPublicKey-> - SilcPublicKey->SilcSILCPublicKey->RsaPublicKey - - silc_acc_public_key creates SilcPublicKey and SilcAcceleratorPublicKey - and acc->pkcs->import_public_key creates SilcSoftAccPublicKey. + (***DONE) o Implement software accelerator. It is a thread pool system where the - public key and private key operations are executed in threads. + public key and private key operations are executed in threads. + (***DONE) - const struct SilcAcceleratorObject softacc = - { - "softacc", softacc_init, softacc_uninit, - softacc_pkcs, NULL, NULL, NULL, NULL - } - - /* Called from silc_acc_private_key */ - int silc_softacc_import_private_key(void *key, SilcUInt32 key_len, - void **ret_private_key) - { - SilcSoftAccPrivateKey prv = silc_calloc(1, sizeof(*prv)); - prv->pkcs = acc->pkcs; - prv->private_key = key; - *ret_private_key = prv; - } + o Diffie-Hellman acceleration (o Symmetric key cryptosystem acceleration? They are always sycnhronouos even with hardware acceleration so the crypto API shouldn't require @@ -465,13 +360,22 @@ SILC Accelerator Library lib/silcmath ============ - o Import TFM. Talk to Tom to add the missing functions. Use TFM in - client and client library, but TMA in server, due to the significantly - increased memory consumption with TFM, and the rare need for public - key operations in server. + 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's fp_int dynamic so that a specific + size can be allocated for the int. We could have two new functions: - We want TFM's speed but not TFM's memory requirements. Talk to Tom - about making the TFM mp dynamic just as it is in LTM. + SilcBool silc_mp_init_size(SilcMPInt *mp, SilcUInt32 bit_size); + SilcBool silc_mp_sinit_size(SilcStack stack, SilcMPInt *mp, + SilcUInt32 bit_size); + + Which by default allocates `bit_size' bits instead of some default + value. silc_mp_init would allocate the default FP_SIZE with TFM + and do normal init with TMA and GMP. _init_size with TMA and GMP + would be same as _init. + + o Add AND, OR and XOR support to TFM or ask Tom to do it. o The SILC MP API function must start returning indication of success and failure of the operation. @@ -509,25 +413,24 @@ lib/silcasn1 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. + 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. + 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 - in SILC. + o OpenPGP certificate support, allowing the use of PGP public keys. lib/silcssh =========== - o SSH2 public key/private key support, allowing the use of SSH2 keys - in SILC. RFC 4716. + o SSH2 public key/private key support, allowing the use of SSH2 keys. + RFC 4716. (***DONE) lib/silcpkix @@ -585,6 +488,9 @@ lib/silcserver o Library must have support for SERVICE command. + o Both UDP and TCP support for incoming connecetions. Maintaining long + term UDP sessions. + o The server must be able to run behind NAT device. This means that Server ID must be based on public IP instead of private IP.