| They are best used for one-time encryption needs. | |
| They are based on complex mathematical operations and can easily be accelerated by hardware. | |
| They are often used for wire-speed encryption in data networks. | |
| They offer simple key management properties. |
| They are easily reversed to decipher the message context. | |
| They are used for encrypting bulk data communications. | |
| They are based on a two-way mathematical function. | |
| They convert arbitrary data into a fixed-length digest. |
| Unknown threats | |
| Reconnaissance threats | |
| Inside threats | |
| Outside threats |