IPWorks Encrypt 2020 C++ Edition

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DecryptBlock Method

Decrypts a block and returns the decrypted data.

Syntax

ANSI (Cross Platform)
char* DecryptBlock(const char* lpInputBuffer, int lenInputBuffer, int *lpSize = NULL);

Unicode (Windows)
LPSTR DecryptBlock(LPCSTR lpInputBuffer, INT lenInputBuffer, LPINT lpSize = NULL);
- (NSData*)decryptBlock:(NSData*)inputBuffer;
#define MID_RC4_DECRYPTBLOCK 4

IPWORKSENCRYPT_EXTERNAL int IPWORKSENCRYPT_CALL IPWorksEncrypt_RC4_Do(void *lpObj, int methid, int cparam, void *param[], int cbparam[], int64 *lpllVal);

Remarks

DecryptBlock will decrypt the input data and return the decrypted block. The decrypted block will always be the same length as the encrypted data. The following properties are applicable:

  • IV (required)
  • Key (required)

InputBuffer specifies the input data to encrypt.

DecryptBlock Example


TBD.

Error Handling (C++)

This method returns a Binary String value (with length lpSize); after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.
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IPWorks Encrypt 2020 C++ Edition - Version 20.0 [Build 8155]