choose

Functions
template<domain D :shared2p , dim N>
D xor_uint8	choose (D bool[[N]] cond, D xor_uint8[[N]] first, D xor_uint8[[N]] second)
template<domain D :shared2p , dim N>
D xor_uint16	choose (D bool[[N]] cond, D xor_uint16[[N]] first, D xor_uint16[[N]] second)
template<domain D :shared2p , dim N>
D xor_uint32	choose (D bool[[N]] cond, D xor_uint32[[N]] first, D xor_uint32[[N]] second)
template<domain D :shared2p , dim N>
D xor_uint64	choose (D bool[[N]] cond, D xor_uint64[[N]] first, D xor_uint64[[N]] second)

Detailed Description

Function for obliviously choosing pointwise from the inputs.

Note

D - shared2p protection domain

Supported types - xor_uint8 / xor_uint16 / xor_uint32 / xor_uint64

Parameters

cond	- a boolean vector
first	- values for true case
second	- values for false case

Returns

pointwise check if cond at a certain position is true or false. if true the element of first at that position is returned else the element of second at that position is returned

Function Documentation

choose() [1/4]

D xor_uint16 choose	(	D bool[[N]]	cond,
		D xor_uint16[[N]]	first,
		D xor_uint16[[N]]	second
	)

choose() [2/4]

D xor_uint32 choose	(	D bool[[N]]	cond,
		D xor_uint32[[N]]	first,
		D xor_uint32[[N]]	second
	)

choose() [3/4]

D xor_uint64 choose	(	D bool[[N]]	cond,
		D xor_uint64[[N]]	first,
		D xor_uint64[[N]]	second
	)

choose() [4/4]

D xor_uint8 choose	(	D bool[[N]]	cond,
		D xor_uint8[[N]]	first,
		D xor_uint8[[N]]	second
	)