Mercurial > projects > dcrypt
annotate dcrypt/crypto/padding/RFC1321.d @ 10:cd376996cdb3
Renamed SymmetricCipher back to Cipher (we don't support any other kind atm, I'll deal with it when we do.). Added BlockCipherWrapper for the encryption of arbitrary streams with or without padding. Removed hashByName, and replaced it with createHash. Re-did the high-level API, and filled out Crypto. Added cipher creation via createCipher. Added dsk to the CONTRIBUTORS file for helping with the design of the high-level API.
| author | Thomas Dixon <reikon@reikon.us> |
|---|---|
| date | Wed, 20 Aug 2008 20:08:07 -0400 |
| parents | 0e08791a1418 |
| children | 8b5eaf3c2979 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * This file is part of the dcrypt project. | |
| 3 * | |
| 4 * Copyright: Copyright (C) dcrypt contributors 2008. All rights reserved. | |
| 5 * License: MIT | |
| 6 * Authors: Thomas Dixon | |
| 7 */ | |
| 8 | |
| 9 module dcrypt.crypto.padding.RFC1321; | |
| 10 | |
| 11 import dcrypt.crypto.BlockCipherPadding; | |
| 12 | |
| 13 /** | |
| 14 * This class implements the padding described in RFC1321 (MD5 spec). | |
| 15 * Ex. [... 0x80, 0x00 ... 0x00] | |
| 16 */ | |
| 17 class RFC1321 : BlockCipherPadding { | |
| 18 char[] name() { | |
| 19 return "RFC1321"; | |
| 20 } | |
| 21 | |
|
10
cd376996cdb3
Renamed SymmetricCipher back to Cipher (we don't support any other kind atm, I'll deal with it when we do.). Added BlockCipherWrapper for the encryption of arbitrary streams with or without padding. Removed hashByName, and replaced it with createHash. Re-did the high-level API, and filled out Crypto. Added cipher creation via createCipher. Added dsk to the CONTRIBUTORS file for helping with the design of the high-level API.
Thomas Dixon <reikon@reikon.us>
parents:
0
diff
changeset
|
22 ubyte[] pad(uint len) { |
|
cd376996cdb3
Renamed SymmetricCipher back to Cipher (we don't support any other kind atm, I'll deal with it when we do.). Added BlockCipherWrapper for the encryption of arbitrary streams with or without padding. Removed hashByName, and replaced it with createHash. Re-did the high-level API, and filled out Crypto. Added cipher creation via createCipher. Added dsk to the CONTRIBUTORS file for helping with the design of the high-level API.
Thomas Dixon <reikon@reikon.us>
parents:
0
diff
changeset
|
23 ubyte[] output = new ubyte[len]; |
| 0 | 24 |
|
10
cd376996cdb3
Renamed SymmetricCipher back to Cipher (we don't support any other kind atm, I'll deal with it when we do.). Added BlockCipherWrapper for the encryption of arbitrary streams with or without padding. Removed hashByName, and replaced it with createHash. Re-did the high-level API, and filled out Crypto. Added cipher creation via createCipher. Added dsk to the CONTRIBUTORS file for helping with the design of the high-level API.
Thomas Dixon <reikon@reikon.us>
parents:
0
diff
changeset
|
25 output[0] = 0x80; |
|
cd376996cdb3
Renamed SymmetricCipher back to Cipher (we don't support any other kind atm, I'll deal with it when we do.). Added BlockCipherWrapper for the encryption of arbitrary streams with or without padding. Removed hashByName, and replaced it with createHash. Re-did the high-level API, and filled out Crypto. Added cipher creation via createCipher. Added dsk to the CONTRIBUTORS file for helping with the design of the high-level API.
Thomas Dixon <reikon@reikon.us>
parents:
0
diff
changeset
|
26 output[1..output.length] = 0; |
| 0 | 27 |
|
10
cd376996cdb3
Renamed SymmetricCipher back to Cipher (we don't support any other kind atm, I'll deal with it when we do.). Added BlockCipherWrapper for the encryption of arbitrary streams with or without padding. Removed hashByName, and replaced it with createHash. Re-did the high-level API, and filled out Crypto. Added cipher creation via createCipher. Added dsk to the CONTRIBUTORS file for helping with the design of the high-level API.
Thomas Dixon <reikon@reikon.us>
parents:
0
diff
changeset
|
28 return output; |
| 0 | 29 } |
| 30 | |
|
10
cd376996cdb3
Renamed SymmetricCipher back to Cipher (we don't support any other kind atm, I'll deal with it when we do.). Added BlockCipherWrapper for the encryption of arbitrary streams with or without padding. Removed hashByName, and replaced it with createHash. Re-did the high-level API, and filled out Crypto. Added cipher creation via createCipher. Added dsk to the CONTRIBUTORS file for helping with the design of the high-level API.
Thomas Dixon <reikon@reikon.us>
parents:
0
diff
changeset
|
31 uint unpad(void[] input_) { |
| 0 | 32 ubyte[] input = cast(ubyte[]) input_; |
| 33 | |
| 34 uint len = input.length; | |
| 35 | |
| 36 while (len-- > 0) | |
| 37 if (input[len] != 0) break; | |
| 38 | |
| 39 if (input[len] != 0x80) | |
| 40 throw new InvalidPaddingError( | |
| 41 name()~": Incorrect padding."); | |
| 42 | |
| 43 return (input.length - len); | |
| 44 } | |
| 45 } |