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author | Mike Buland <eichlan@xagasoft.com> | 2012-11-05 22:41:51 +0000 |
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committer | Mike Buland <eichlan@xagasoft.com> | 2012-11-05 22:41:51 +0000 |
commit | ec05778d5718a7912e506764d443a78d6a6179e3 (patch) | |
tree | 78a9a01532180030c095acefc45763f07c14edb8 /src/experimental/ciphermodeofb.h | |
parent | b20414ac1fe80a71a90601f4cd1767fa7014a9ba (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/experimental/ciphermodeofb.h | 90 |
1 files changed, 45 insertions, 45 deletions
diff --git a/src/experimental/ciphermodeofb.h b/src/experimental/ciphermodeofb.h index 8c2aa20..e1b5108 100644 --- a/src/experimental/ciphermodeofb.h +++ b/src/experimental/ciphermodeofb.h | |||
@@ -6,51 +6,51 @@ | |||
6 | 6 | ||
7 | namespace Bu | 7 | namespace Bu |
8 | { | 8 | { |
9 | template<int iBlockSize, typename CipherType> | 9 | template<int iBlockSize, typename CipherType> |
10 | class CipherModeOfb : public CipherType | 10 | class CipherModeOfb : public CipherType |
11 | { | 11 | { |
12 | public: | 12 | public: |
13 | CipherModeOfb(class Stream &rNext ) : | 13 | CipherModeOfb(class Stream &rNext ) : |
14 | CipherType( rNext ), | 14 | CipherType( rNext ), |
15 | bStart( true ) | 15 | bStart( true ) |
16 | { | 16 | { |
17 | memset( aVector, 0, iBlockSize ); | 17 | memset( aVector, 0, iBlockSize ); |
18 | } | 18 | } |
19 | 19 | ||
20 | virtual ~CipherModeOfb() | 20 | virtual ~CipherModeOfb() |
21 | { | 21 | { |
22 | } | 22 | } |
23 | 23 | ||
24 | void setIv( const Bu::String &sIv ) | 24 | void setIv( const Bu::String &sIv ) |
25 | { | 25 | { |
26 | memcpy( aVector, sIv.getStr(), iBlockSize ); | 26 | memcpy( aVector, sIv.getStr(), iBlockSize ); |
27 | } | 27 | } |
28 | 28 | ||
29 | protected: | 29 | protected: |
30 | void decipher( void *pBuf ) | 30 | void decipher( void *pBuf ) |
31 | { | 31 | { |
32 | CipherType::encipher( aVector ); | 32 | CipherType::encipher( aVector ); |
33 | uint8_t aTmp[iBlockSize]; | 33 | uint8_t aTmp[iBlockSize]; |
34 | memcpy( aTmp, aVector, iBlockSize ); | 34 | memcpy( aTmp, aVector, iBlockSize ); |
35 | for( int j = 0; j < iBlockSize; j++ ) | 35 | for( int j = 0; j < iBlockSize; j++ ) |
36 | ((uint8_t *)pBuf)[j] ^= aVector[j]; | 36 | ((uint8_t *)pBuf)[j] ^= aVector[j]; |
37 | memcpy( aVector, aTmp, iBlockSize ); | 37 | memcpy( aVector, aTmp, iBlockSize ); |
38 | } | 38 | } |
39 | 39 | ||
40 | void encipher( void *pBuf ) | 40 | void encipher( void *pBuf ) |
41 | { | 41 | { |
42 | CipherType::encipher( aVector ); | 42 | CipherType::encipher( aVector ); |
43 | uint8_t aTmp[iBlockSize]; | 43 | uint8_t aTmp[iBlockSize]; |
44 | memcpy( aTmp, aVector, iBlockSize ); | 44 | memcpy( aTmp, aVector, iBlockSize ); |
45 | for( int j = 0; j < iBlockSize; j++ ) | 45 | for( int j = 0; j < iBlockSize; j++ ) |
46 | ((uint8_t *)pBuf)[j] ^= aVector[j]; | 46 | ((uint8_t *)pBuf)[j] ^= aVector[j]; |
47 | memcpy( aVector, aTmp, iBlockSize ); | 47 | memcpy( aVector, aTmp, iBlockSize ); |
48 | } | 48 | } |
49 | 49 | ||
50 | private: | 50 | private: |
51 | bool bStart; | 51 | bool bStart; |
52 | uint8_t aVector[iBlockSize]; | 52 | uint8_t aVector[iBlockSize]; |
53 | }; | 53 | }; |
54 | }; | 54 | }; |
55 | 55 | ||
56 | #endif | 56 | #endif |