| name | image | structure | parent | Block sizes | date First publication | Key sizes | Rounds | Website |
|---|---|---|---|---|---|---|---|---|
| SHA-1 | 1995 | website | ||||||
| RC4 |  | Keystream | 1987 | 40–7003204800000000000?2048 bits | 1 | website | ||
| RC5 |  | Feistel Network | 32, 64 or 128 bits (64 suggested) | 1994 | 0 to 2040 bits (128 suggested) | 255 | website | |
| RC6 |  | Feistel Network | RC5 | 128 bits | 1998 | 128, 192, or 256 bits | 20 | website |
| SC2000 | Feistel Network | 128 bits | 2000 | 128, 192, or 256 bits | 7 | website |