choose(single condition)

Functions
template<domain D :shared3p , dim N>
D xor_uint8	choose (D bool cond, D xor_uint8[[N]] first, D xor_uint8[[N]] second)
template<domain D :shared3p , dim N>
D xor_uint16	choose (D bool cond, D xor_uint16[[N]] first, D xor_uint16[[N]] second)
template<domain D :shared3p , dim N>
D xor_uint32	choose (D bool cond, D xor_uint32[[N]] first, D xor_uint32[[N]] second)
template<domain D :shared3p , dim N>
D xor_uint64	choose (D bool cond, D xor_uint64[[N]] first, D xor_uint64[[N]] second)

Detailed Description

Function for obliviously choosing one of the inputs.

Note

D - shared3p protection domain

Supported types - xor_uint8 / xor_uint16 / xor_uint32 / xor_uint64

Parameters

cond	- a boolean scalar

Returns

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

choose() [2/4]

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

choose() [3/4]

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

choose() [4/4]

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