1 files changed, 8 insertions, 0 deletions
diff --git a/src/crypto.c b/src/crypto.c
index bddb2e6..b99add7 100644
--- a/src/crypto.c
+++ b/src/crypto.c
@@ -7,3 +7,11 @@ unsigned i_lr(unsigned y, unsigned offset){
 unsigned i_rr(unsigned x, unsigned n) {
     return (x >> n % 32) | (x << (32-n) % 32);
 }
+
+uint64_t i_lr64(uint64_t y, uint64_t offset){
+    return ( y << offset ) | ( y >> (64 - offset));
+}
+
+uint64_t i_rr64(uint64_t x, uint64_t n) {
+    return (x >> n) | (x << (64-n));
+}