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53 lines
1.2 KiB
53 lines
1.2 KiB
#ifndef __RC4_H__
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#define __RC4_H__
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#ifndef RSA32API
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#define RSA32API __stdcall
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Key structure */
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#if defined(_WIN64) && !defined(MIDL_PASS)
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__declspec(align(8))
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#endif
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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 RSA32API rc4_key(struct RC4_KEYSTRUCT *pKS, unsigned int dwLen, unsigned char *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 RSA32API rc4(struct RC4_KEYSTRUCT *pKS, unsigned int dwLen, unsigned char *pbuf);
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#ifdef __cplusplus
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}
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#endif
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#endif // __RC4_H__
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