Document Minimum viable feature set for CCA settlement.

[1a35e1]

• Minimum FHE functionality (bid encryption, threshold decryption, proof verification).
• Decide whether tranches are in-scope or post-MVP.

[Principursa]

Compute Types

Name	Bit Size	Usage
euint8	8	Compute
euint16	16	Compute
euint32	32	Compute
euint64	64	Compute
euint128	128	Compute
ebool	8	Compute
eaddress	160	Compute

Input Types

Name	Bit Size	Usage
InEuint8	8	Input
InEuint16	16	Input
InEuint32	32	Input
InEuint64	64	Input
InEuint128	128	Input
InEbool	8	Input
InEaddress	160	Input

Operations

Name	FHE.sol function	Operator	euint8	euint16	euint32	euint64	euint128	ebool	eaddress
Addition	add	+	Yes	Yes	Yes	Yes	Yes	No	No
Subtraction	sub	-	Yes	Yes	Yes	Yes	Yes	No	No
Multiplication	mul	*	Yes	Yes	Yes	Yes	Yes	No	No
Bitwise And	and	&	Yes	Yes	Yes	Yes	Yes	Yes	No
Bitwise Or	or	|	Yes	Yes	Yes	Yes	Yes	Yes	No
Bitwise Xor	xor	^	Yes	Yes	Yes	Yes	Yes	Yes	No
Division	div	/	Yes	Yes	Yes	Yes	Yes	No	No
Remainder	rem	%	Yes	Yes	Yes	Yes	Yes	No	No
Square	square	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Shift Right	shr	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Shift Left	shl	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Rotate Right	ror	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Rotate Left	rol	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Equal	eq	n/a	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Not equal	ne	n/a	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Greater than or equal	gte	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Greater than	gt	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Less than or equal	lte	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Less than	lt	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Min	min	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Max	max	n/a	Yes	Yes	Yes	Yes	Yes	No	No
Not	not	n/a	Yes	Yes	Yes	Yes	Yes	Yes	No
Select	select	n/a	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Decrypt	decrypt	n/a	Yes	Yes	Yes	Yes	Yes	Yes	Yes