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A null cipher, also known as concealment cipher, is an ancient form of encryption where the plaintext is mixed with a large amount of non-cipher material. Today it is regarded as a simple form of steganography, which can be used to hide ciphertext.
Classical cryptography, Acrostics & Dot concealment cipher
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cipher null used message one ciphers concealment classical transposition i'm cryptography nulls substitution form also encryption example letters plaintext first
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Null cipher | is a | option if one is unable to use an advanced encryption method and has ample time | 0.90 | text |
| Null cipher | related to Acrostics | The | 0.60 | section |
| Null cipher | related to Acrostics | Hidden | 0.60 | section |
| Null cipher | related to Acrostics | This | 0.60 | section |
| Null cipher | related to Acrostics | For | 0.60 | section |
| Null cipher | related to Acrostics | Rolfe Humphries | 0.60 | section |
| Null cipher | related to Acrostics | Poetry Magazine | 0.60 | section |
| Null cipher | related to Acrostics | Nicholas Murray Butler | 0.60 | section |
| Null cipher | related to Classical cryptography | In | 0.60 | section |
| Null cipher | related to Classical cryptography | Most | 0.60 | section |
| Null cipher | related to Classical cryptography | Here | 0.60 | section |
| Null cipher | related to Classical cryptography | German | 0.60 | section |
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