choose(multiple conditions)

Functions
template<domain D :shared3p , dim N>
D xor_uint8	choose (D bool[[N]] cond, D xor_uint8[[N]] first, D xor_uint8[[N]] second)
template<domain D :shared3p , dim N>
D xor_uint16	choose (D bool[[N]] cond, D xor_uint16[[N]] first, D xor_uint16[[N]] second)
template<domain D :shared3p , dim N>
D xor_uint32	choose (D bool[[N]] cond, D xor_uint32[[N]] first, D xor_uint32[[N]] second)
template<domain D :shared3p , 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 - shared3p protection domain

Supported types - xor_uint8 / xor_uint16 / xor_uint32 / xor_uint64

Parameters

cond	- a boolean vector

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

Leakage

None

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
	)