#include <padding.h>
| class CPaddingPKCS1Encryption : public CPadding |
| Public Member Functions | |
|---|---|
| virtual TInt | MinPaddingLength(void) |
| IMPORT_C CPaddingPKCS1Encryption * | NewL(TInt) |
| IMPORT_C CPaddingPKCS1Encryption * | NewLC(TInt) |
| virtual void | UnPadL(const TDesC8 &, TDes8 &) |
| Protected Member Functions | |
|---|---|
| CPaddingPKCS1Encryption(TInt) | |
This concrete subclass of CPadding implements PKCS#1 v1.5 encryption padding. It is intended for use with RSA encryption/decryption.
| IMPORT_C | CPaddingPKCS1Encryption | ( | TInt | aBlockBytes | ) | [protected] |
Constructor
| Parameter | Description |
|---|---|
| aBlockBytes | The block size in bytes. |
| TInt | MinPaddingLength | ( | void | ) | const [virtual] |
Reimplemented from CPadding::MinPaddingLength(void)const
Gets the smallest number of bytes that PadL() will ever add to aInput in order to get a valid block aligned aOutput.
For example, in SSLv3 padding, if the block size is 8 and aInput is 7 bytes, it will append 1 byte of padding. For SSLv3 padding, this is the smallest amount possible as an 8 byte input will add another block size (8 more bytes) of padded data.
Returns: A TInt containing the smallest number of padding bytes possible.
| IMPORT_C CPaddingPKCS1Encryption * | NewL | ( | TInt | aBlockBytes | ) | [static] |
Creates a new CPaddingPKCS1Encryption object.
| Parameter | Description |
|---|---|
| aBlockBytes | The block size in bytes. |
Returns: A pointer to the new CPaddingPKCS1Encryption object.
| IMPORT_C CPaddingPKCS1Encryption * | NewLC | ( | TInt | aBlockBytes | ) | [static] |
Creates a new CPaddingPKCS1Encryption object and leaves a pointer to it on the cleanup stack.
| Parameter | Description |
|---|---|
| aBlockBytes | The block size in bytes. |
Returns: A pointer to the new CPaddingPKCS1Encryption object.
Reimplemented from CPadding::UnPadL(const TDesC8 &,TDes8 &)
Removes padding from aInput and appends unpadded result to aOutput.
| Parameter | Description |
|---|---|
| aInput | Data to be unpadded. |
| aOutput | On return, the unpadded data. |