Decrypt Method

Decrypts data using a key.

Syntax

• C++
• Objective-C
• C

ANSI (Cross Platform)
int Decrypt(const char* lpszKeyName, const char* lpszAlgorithm);

Unicode (Windows)
INT Decrypt(LPCWSTR lpszKeyName, LPCWSTR lpszAlgorithm);

- (void)decrypt:(NSString*)keyName :(NSString*)algorithm;

#define MID_AZUREKEYS_DECRYPT 7

CLOUDKEYS_EXTERNAL int CLOUDKEYS_CALL CloudKeys_AzureKeys_Do(void *lpObj, int methid, int cparam, void *param[], int cbparam[], int64 *lpllVal);

Remarks

This method decrypts data using the key specified by KeyName and the given Algorithm. The VersionId configuration setting can be used to target a specific key version.

The data to decrypt is taken from the input stream supplied via the SetInputStream method, the specified InputFile, or the InputData property. The decrypted data is output to the output stream supplied via the SetOutputStream method, the specified OutputFile, or the OutputData property.

The key specified by KeyName must be an RSA key; EC keys cannot be used for encryption/decryption.

The Algorithm parameter specifies which algorithm to use to decrypt the data; it must match the algorithm used to encrypt the data previously. Possible values are:

Error Handling (C++)

This method returns a 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. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)