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MSMutableProtectedData appendBytes:length:error method

Appends the specified number of plaintext bytes from a given buffer to the receiver. First the bytes are encrypted, and then the cipher text bytes are appended to the receiver.

Signature

- (BOOL)appendBytes:(const void *)bytes length:(NSUInteger)length error:(NSError **)errorPtr;

Parameters

Name Datatype Notes
bytes
const void *
Required. The buffer that contains the plaintext data to be encrypted and appended.
length
NSUInteger
Required. The number of bytes to copy.
errorPtr
NSError **
Optional. If an error occurs, contains the error code and details.

Returns

Type: BOOL

YES if the operation is successful; otherwise, NO. If the operation isn't successful, the errorPtr parameter references an NSError object that contains more information about the error.

Defined in

MSMutableProtectedData.h

Supported Platforms

Minimum supported OS versions
iOS 7.0 and OS X 10.8

Remarks

The specified number of bytes are copied from the buffer, encrypted, and appended to the receiver's data.