blob: c36ff4340e95d85874a8e6187efbbb24952126bc (
plain) (
tree)
|
|
// Copyright © 2021 rsiddharth <s@ricketyspace.net>
// SPDX-License-Identifier: ISC
package lib
// (a + b + ...) mod 2^32
func shaAdd(n ...uint32) uint32 {
sum := uint64(0)
for _, v := range n {
sum += uint64(v)
}
return uint32(sum & 0xFFFFFFFF)
}
// Circular Right Shift
func shaRotr(x uint32, n uint) uint32 {
return (x >> n) | (x << (32 - n))
}
// Circular Left Shift
func shaRotl(x uint32, n uint) uint32 {
return (x << n) | (x >> (32 - n))
}
|
