63 lines
1.0 KiB
C
63 lines
1.0 KiB
C
/* modes.h
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Defines the generic routines used to do chaining modes with a
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block cipher.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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// constants for operations
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#define ENCRYPT 1
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#define DECRYPT 0
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/* CBC()
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*
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* Performs a XOR on the plaintext with the previous ciphertext
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*
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* Parameters:
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*
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* output Input buffer -- MUST be RC2_BLOCKLEN
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* input Output buffer -- MUST be RC2_BLOCKLEN
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* keyTable
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* op ENCRYPT, or DECRYPT
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* feedback feedback register
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*
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*/
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void CBC(void Cipher(BYTE *, BYTE *, void *, int),
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DWORD dwBlockLen,
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BYTE *output,
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BYTE *input,
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void *keyTable,
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int op,
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BYTE *feedback);
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/* CFB (cipher feedback)
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*
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*
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* Parameters:
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*
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*
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* output Input buffer -- MUST be RC2_BLOCKLEN
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* input Output buffer -- MUST be RC2_BLOCKLEN
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* keyTable
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* op ENCRYPT, or DECRYPT
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* feedback feedback register
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*
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*/
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void CFB(void Cipher(BYTE *, BYTE *, void *, int),
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DWORD dwBlockLen,
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BYTE *output,
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BYTE *input,
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void *keyTable,
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int op,
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BYTE *feedback);
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#ifdef __cplusplus
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}
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#endif
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