Comparison of Stream Ciphers
| Stream Cipher |
Creation Date |
Speed (cycles per byte) |
(bits) | Attack | |||
|---|---|---|---|---|---|---|---|
| Effective Key-Length |
Initialization vector | Internal State |
Best Known | Computational Complexity |
|||
| A5/1 | 1989 | Voice (Wphone) | 54 | 114 | 64 | Active KPA OR KPA Time-Memory Tradeoff |
~2 seconds OR 239.91 |
| A5/2 | 1989 | Voice (Wphone) | 54 | 114 | 64? | Active | 4.6 milliseconds |
| Achterbahn-128/80 | 2006 | 1 (hardware) | 80/128 | 80/128 | 297/351 | Brute force for frame lengths L ≤ 244. Correlation attack for L ≥ 248. | 280 resp. 2128 for L ≤ 244. |
| CryptMT | 2005 | Very Fast (Software) | Variable | up to 19968 | 19968 | N/A (2008) | N/A (2008) |
| FISH | 1993 | Quite Fast (Wsoft) | Variable | ? | ? | Known-plaintext attack | 211 |
| Grain | Pre-2004 | Fast | 80 | 64 | 160 | Key-Derivation | 243 |
| HC-256 | Pre-2004 | 4 (WP4) | 256 | 256 | 65536 | ? | ? |
| ISAAC | 1996 | 2.375 (W64-bit) - 4.6875 (W32-bit) |
8-8288 usually 40-256 |
N/A | 8288 | (2006) First-round Weak-Internal-State-Derivation |
4.67×101240 (2001) |
| MUGI | 1998–2002 | ? | 128 | 128 | 1216 | N/A (2002) | ~282 |
| PANAMA | 1998 | 2 | 256 | 128? | 1216? | Hash Collisions (2001) | 282 |
| Phelix | Pre-2004 | up to 8 (Wx86) | 256 + a 128-bit Nonce | 128? | ? | Differential (2006) | 237 |
| Pike | 1994 | 0.9 x FISH (Wsoft) | Variable | ? | ? | N/A (2004) | N/A (2004) |
| Py | Pre-2004 | 2.6 | 8-2048? usually 40-256? |
64 | 8320 | Cryptanalytic Theory (2006) | 275 |
| Rabbit | 2003-Feb | 3.7(WP3)-9.7(WARM7) | 128 | 64 | 512 | N/A (2006) | N/A (2006) |
| RC4 | 1987 | 7 WP5 | 8-2048 usually 40-256 |
8 | 2064 | Shamir Initial-Bytes Key-Derivation OR KPA | 213 OR 233 |
| Salsa20 | Pre-2004 | 4.24 (WG4) - 11.84 (WP4) |
256 | a 64-bit Nonce + a 64-bit stream position | 512 | Probabilistic neutral bits method | 2251 for 8 rounds (2007) |
| Scream | 2002 | 4 - 5 (Wsoft) | 128 + a 128-bit Nonce | 32? | 64-bit round function | ? | ? |
| SEAL | 1997 | Very Fast (W32-bit) | ? | 32? | ? | ? | ? |
| SNOW | Pre-2003 | Very Good (W32-bit) | 128 OR 256 | 32 | ? | ? | ? |
| SOBER-128 | 2003 | ? | up to 128 | ? | ? | Message Forge | 2−6 |
| SOSEMANUK | Pre-2004 | Very Good (W32-bit) | 128 | 128 | ? | ? | ? |
| Trivium | Pre-2004 | 4 (Wx86) - 8 (WLG) | 80 | 80 | 288 | Brute force attack (2006) | 2135 |
| Turing | 2000–2003 | 5.5 (Wx86) | ? | 160 | ? | ? | ? |
| VEST | 2005 | 42 (WASIC) - 64 (WFPGA) |
Variable usually 80-256 |
Variable usually 80-256 |
256 - 800 | N/A (2006) | N/A (2006) |
| WAKE | 1993 | Fast | ? | ? | 8192 | CPA & CCA | Vulnerable |
| Stream Cipher |
Creation Date |
Speed (cycles per byte) |
(bits) | Attack | |||
| Effective Key-Length |
Initialization vector | Internal State |
Best Known | Computational Complexity |
|||
Read more about this topic: Stream Cipher
Famous quotes containing the words comparison and/or stream:
“The comparison between Coleridge and Johnson is obvious in so far as each held sway chiefly by the power of his tongue. The difference between their methods is so marked that it is tempting, but also unnecessary, to judge one to be inferior to the other. Johnson was robust, combative, and concrete; Coleridge was the opposite. The contrast was perhaps in his mind when he said of Johnson: “his bow-wow manner must have had a good deal to do with the effect produced.””
—Virginia Woolf (1882–1941)
“The small force that it takes to launch a boat into the stream should not be confused with the force of the stream that carries it along: but this confusion appears in nearly all biographies.”
—Friedrich Nietzsche (1844–1900)