Crate consistenttime

Consistent Time

The goal of this crate is to offer constant time functions which most cryptographic computing protocols require to prevent side channelling timing attacks.

These algorithms are not implemented to be efficient. But to take the same number of processor cycles if their outcome is true, or false. The reference used for this crate is Go-Lang's crypto/subtile Which implements a handful of constant time algorithms.

I took the liberity of generalizing them out to all unsigned sizes supported by Rust-Lang. Everything inside of this crate is defined as a macro. This makes writing the extremely repetive code for all types a lot easier.

Functions

ct_copy_u16	Constant Time Copy
ct_copy_u32	Constant Time Copy
ct_copy_u64	Constant Time Copy
ct_copy_u8	Constant Time Copy
ct_copy_usize	Constant Time Copy
ct_select_u16	Constant Time Selection.
ct_select_u32	Constant Time Selection.
ct_select_u64	Constant Time Selection.
ct_select_u8	Constant Time Selection.
ct_select_usize	Constant Time Selection.
ct_u16_eq	Returns 1usize if x==y, otherwise returns 0usize
ct_u16_slice_eq	Compares two slices. Returns 1usize if x==y, and 0usize if x!=y. Will always return 0 if lens are not equal
ct_u32_eq	Returns 1usize if x==y, otherwise returns 0usize
ct_u32_slice_eq	Compares two slices. Returns 1usize if x==y, and 0usize if x!=y. Will always return 0 if lens are not equal
ct_u64_eq	Returns 1usize if x==y, otherwise returns 0usize
ct_u64_slice_eq	Compares two slices. Returns 1usize if x==y, and 0usize if x!=y. Will always return 0 if lens are not equal
ct_u8_eq	Returns 1usize if x==y, otherwise returns 0usize
ct_u8_slice_eq	Compares two slices. Returns 1usize if x==y, and 0usize if x!=y. Will always return 0 if lens are not equal
ct_usize_eq	Returns 1usize if x==y, otherwise returns 0usize
ct_usize_slice_eq	Compares two slices. Returns 1usize if x==y, and 0usize if x!=y. Will always return 0 if lens are not equal