The TFHE library defines the following operations with FHE ciphertexts:
| name | function name | symbol | type |
|---|---|---|---|
NOTE 1: Random encrypted integers that are generated fully on-chain. Currently, implemented as a mockup by using a PRNG in the plain. Not for use in production!
Overloaded operators +, -, *, &, ... on encrypted integers are supported (using for). As of now, overloaded operators will call the versions without an overflow check.
More information about the supported operations can be found in the function specifications page or in the TFHE-rs docs.
If you find yourself in search of a missing feature, we encourage you to consult our roadmap for upcoming developments. Alternatively, don't hesitate to reach out to us on Discord or visit our community forum.
Add
TFHE.add
+
Binary
Sub
TFHE.sub
-
Binary
Mul
TFHE.mul
*
Binary
Div (plaintext divisor)
TFHE.div
Binary
Rem (plaintext divisor)
TFHE.rem
Binary
BitAnd
TFHE.and
&
Binary
BitOr
TFHE.or
|
Binary
BitXor
TFHE.xor
^
Binary
Shift Right
TFHE.shr
Binary
Shift Left
TFHE.shl
Binary
Equal
TFHE.eq
Binary
Not equal
TFHE.ne
Binary
Greater than or equal
TFHE.ge
Binary
Greater than
TFHE.gt
Binary
Less than or equal
TFHE.le
Binary
Less than
TFHE.lt
Binary
Min
TFHE.min
Binary
Max
TFHE.max
Binary
Neg
TFHE.neg
-
Unary
Not
TFHE.not
~
Unary
Cmux
TFHE.cmux
Ternary
Decrypt
TFHE.decrypt()
Decryption
Reencrypt
TFHE.reencrypt()
Reencryption
Optimistic Require
TFHE.optReq()
Decryption
Random unsigned int (mockup)
TFHE.randEuintX()
Random