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44 lines
922 B
44 lines
922 B
#ifdef __cplusplus
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extern "C" {
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#endif
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#define RC4_KEYSIZE 5
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/* Key structure */
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typedef struct RC4_KEYSTRUCT
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{
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unsigned char S[256]; /* State table */
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unsigned char i,j; /* Indices */
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} RC4_KEYSTRUCT;
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/* rc4_key()
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*
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* Generate the key control structure. Key can be any size.
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*
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* Parameters:
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* Key A KEYSTRUCT structure that will be initialized.
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* dwLen Size of the key, in bytes.
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* pbKey Pointer to the key.
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*
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* MTS: Assumes pKS is locked against simultaneous use.
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*/
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void rc4_key(struct RC4_KEYSTRUCT *pKS, DWORD dwLen, BYTE *pbKey);
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/* rc4()
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*
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* Performs the actual encryption
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*
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* Parameters:
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*
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* pKS Pointer to the KEYSTRUCT created using rc4_key().
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* dwLen Size of buffer, in bytes.
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* pbuf Buffer to be encrypted.
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*
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* MTS: Assumes pKS is locked against simultaneous use.
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*/
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void rc4(struct RC4_KEYSTRUCT *pKS, DWORD dwLen, BYTE *pbuf);
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#ifdef __cplusplus
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}
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#endif
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