choose

Functions
template<domain D :shared3p , dim N>
D float32	choose (D bool[[N]] cond, D float32[[N]] first, D float32[[N]] second)
template<domain D :shared3p , dim N>
D float64	choose (D bool[[N]] cond, D float64[[N]] first, D float64[[N]] second)
template<domain D, dim N>
D fix32	choose (D bool[[N]] cond, D fix32[[N]] first, D fix32[[N]] second)
template<domain D, dim N>
D fix64	choose (D bool[[N]] cond, D fix64[[N]] first, D fix64[[N]] second)

Detailed Description

Function for obliviously choosing one of the inputs.

Note

D - shared3p protection domain

Supported types - float32 / float64 / fix32 / fix64

Parameters

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

Returns

one of the input arrays that was obliviously chosen with the condition. if true, array first is returned else second is returned

Leakage

None

Function Documentation

choose() [1/4]

D fix32 choose	(	D bool[[N]]	cond,
		D fix32[[N]]	first,
		D fix32[[N]]	second
	)

choose() [2/4]

D fix64 choose	(	D bool[[N]]	cond,
		D fix64[[N]]	first,
		D fix64[[N]]	second
	)

choose() [3/4]

D float32 choose	(	D bool[[N]]	cond,
		D float32[[N]]	first,
		D float32[[N]]	second
	)

choose() [4/4]

D float64 choose	(	D bool[[N]]	cond,
		D float64[[N]]	first,
		D float64[[N]]	second
	)