CHG: testing a prng_successor_one method

2016-02-16 21:41:10 +01:00
parent a1689f417f
commit ee97a92adb
2 changed files with 10 additions and 0 deletions
--- a/armsrc/crypto1.c
+++ b/armsrc/crypto1.c
@@ -141,3 +141,12 @@ uint32_t prng_successor(uint32_t x, uint32_t n)

 	return SWAPENDIAN(x);
 }
+
+uint32_t prng_successor_one(uint32_t x)
+{
+	SWAPENDIAN(x);
+
+	x = x >> 1 | (x >> 16 ^ x >> 18 ^ x >> 19 ^ x >> 21) << 31;
+
+	return SWAPENDIAN(x);
+}