diff --git a/keccak.cpp b/keccak.cpp
index cba1cae..93bddab 100644
--- a/keccak.cpp
+++ b/keccak.cpp
@@ -54,7 +54,7 @@ namespace
     return (x << numBits) | (x >> (64 - numBits));
   }
 
-  /// convert litte vs big endian
+  /// convert little vs big endian
   inline uint64_t swap(uint64_t x)
   {
 #if defined(__GNUC__) || defined(__clang__)
diff --git a/sha256.cpp b/sha256.cpp
index 8f0857d..06f50f8 100644
--- a/sha256.cpp
+++ b/sha256.cpp
@@ -130,7 +130,7 @@ void SHA256::processBlock(const void* data)
   x = b + f1(g,h,a) + 0x923f82a4 + words[ 6]; y = f2(c,d,e); f += x; b = x + y;
   x = a + f1(f,g,h) + 0xab1c5ed5 + words[ 7]; y = f2(b,c,d); e += x; a = x + y;
 
-  // secound round
+  // second round
   x = h + f1(e,f,g) + 0xd807aa98 + words[ 8]; y = f2(a,b,c); d += x; h = x + y;
   x = g + f1(d,e,f) + 0x12835b01 + words[ 9]; y = f2(h,a,b); c += x; g = x + y;
   x = f + f1(c,d,e) + 0x243185be + words[10]; y = f2(g,h,a); b += x; f = x + y;
@@ -232,7 +232,7 @@ void SHA256::processBlock(const void* data)
                words[i-7] +
                (rotate(words[i- 2], 17) ^ rotate(words[i- 2], 19) ^ (words[i- 2] >> 10));
 
-  // eigth round
+  // eighth round
   x = h + f1(e,f,g) + 0x748f82ee + words[56]; y = f2(a,b,c); d += x; h = x + y;
   x = g + f1(d,e,f) + 0x78a5636f + words[57]; y = f2(h,a,b); c += x; g = x + y;
   x = f + f1(c,d,e) + 0x84c87814 + words[58]; y = f2(g,h,a); b += x; f = x + y;
diff --git a/sha3.cpp b/sha3.cpp
index 2f6bc7b..0d762d3 100644
--- a/sha3.cpp
+++ b/sha3.cpp
@@ -56,7 +56,7 @@ namespace
     return (x << numBits) | (x >> (64 - numBits));
   }
 
-  /// convert litte vs big endian
+  /// convert little vs big endian
   inline uint64_t swap(uint64_t x)
   {
 #if defined(__GNUC__) || defined(__clang__)