| Chapter # | Sentence # | Quote |
|---|---|---|
| 12 | 477 | "Such ciphers are, for most View more quotes about practical">practical purposes, impossible to decipher without the appropriate keys, null-square listings, and so on". |
| Chapter # | Sentence # | Quote |
|---|---|---|
| 12 | 474 | "But you have been of help," I said. |
| 12 | 475 | "You have made it a great deal clearer to me what may be involved here. |
| 12 | 476 | I am deeply appreciative". |
| 12 | 477 | "Such ciphers are, for most practical purposes, impossible to decipher without the appropriate keys, null-square listings, and so on". |
| 12 | 478 | "I understand," I said. |
| 12 | 479 | It seemed, as I had feared, that it might be difficult or impossible to decipher the messages without pertinent keying materials. |
| 12 | 480 | These materials, presumably, would exist in Brundisium, and of course, in Ar, if indeed that were the intended destination of the messages. |