HElib: SKHandle Class Reference

HElib 1.0 Implementing Homomorphic Encryption

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SKHandle Class Reference

A handle, describing the secret-key element that "matches" a part, of the form s^r(X^t). More...

`#include <Ctxt.h>`

## Public Member Functions
| SKHandle (long newPowerOfS=0, long newPowerOfX=1, long newSecretKeyID=0)
void | setBase (long newSecretKeyID=-1)
| Set powerOfS=powerOfX=1.
bool | isBase (long ofKeyID=0) const
| Is powerOfS==powerOfX==1?
void | setOne (long newSecretKeyID=-1)
| Set powerOfS=0, powerOfX=1.
bool | isOne () const
| Is powerOfS==0?
bool | operator== (const SKHandle &other) const
bool | operator!= (const SKHandle &other) const
long | getPowerOfS () const
long | getPowerOfX () const
long | getSecretKeyID () const
bool | mul (const SKHandle &a, const SKHandle &b)
| Computes the "product" of two handles. More...

## Friends
class | Ctxt
istream & | operator>> (istream &s, SKHandle &handle)

## Detailed Description

A handle, describing the secret-key element that "matches" a part, of the form s^r(X^t).

## Member Function Documentation

bool SKHandle::mul | ( | const SKHandle & | a,
|  | const SKHandle & | b
| ) |  |
| inline

Computes the "product" of two handles.

The key-ID's and powers of X must match, else an error state arises, which is represented using a key-ID of -1 and returning false. Also, note that inputs may alias outputs.

To detremine if the resulting handle canbe re-liearized using some key-switchingmatrices from the public key, use the method pubKey.haveKeySWmatrix(handle,handle.secretKeyID), from the class FHEPubKey in FHE.h

The documentation for this class was generated from the following file:

- src/Ctxt.h