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// Copyright © 2021 siddharth <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))
}
// Right Shift
func shaShr(x uint32, n uint) uint32 {
return x >> n
}
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