- clear text
$ clear text
1. (I) /noun/ Data in which the semantic information content
(i.e., the meaning) is intelligible or is directly available,
i.e., not encrypted. (See: cleartext, in the clear. Compare:
cipher text, plain text.)
2. (O) /noun/ "Intelligible data, the semantic content of which is
available." [I7498-2]
3. (D) /noun/ Synonym for "plain text".
Deprecated Definition: IDOCs SHOULD NOT use this term as a synonym
for "plain text", because the plain text that is input to an
encryption operation may itself be cipher text that was output
from a previous encryption operation. (See: superencryption.)
$ cleartext
1. (O) /noun/ Synonym for "clear text" [I7498-2].
2. (I) /adjective/ Referring to clear text. Usage: Commonly used
instead of "clear-text". (Compare: ciphertext, plaintext.)
3. (D) /adjective/ Synonym for "plaintext".
Deprecated Definition: IDOCs SHOULD NOT use this term as a synonym
for "plaintext", because the plaintext data that is input to an
encryption operation may itself be ciphertext data that was output
from a previous encryption operation. (See: superencryption.)
- plain text
$ plain text
1. (I) /noun/ Data that is input to an encryption process. (See:
plaintext. Compare: cipher text, clear text.)
2. (D) /noun/ Synonym for "clear text".
Deprecated Definition: IDOCs SHOULD NOT use this term as a synonym
for "clear text". Sometimes plain text that is input to an
encryption operation is clear text, but other times plain text is
cipher text that was output from a previous encryption operation.
(See: superencryption.)
$ plaintext
(I) Data that is input to and transformed by an encryption
process, or that is output by a decryption process.
(C) Usually, the plaintext input to an encryption operation is
cleartext. But in some cases, the input is ciphertext that was
output from another encryption operation. (See: superencryption.)
2.4. Definition Type and Context
Each entry is preceded by a character -- I, N, O, or D -- enclosed in
parentheses, to indicate the type of definition (as is explained
further in Section 3):
- "I" for a RECOMMENDED term or definition of Internet origin.
- "N" if RECOMMENDED but not of Internet origin.
- "O" for a term or definition that is NOT recommended for use in
IDOCs but is something that authors of Internet documents should
know about.
- "D" for a term or definition that is deprecated and SHOULD NOT be
used in Internet documents.
参考