diff --git a/Sources/CryptoSwift/AES.swift b/Sources/CryptoSwift/AES.swift
index f1c5fe6..e9ddb17 100644
--- a/Sources/CryptoSwift/AES.swift
+++ b/Sources/CryptoSwift/AES.swift
@@ -251,7 +251,7 @@ public final class AES: BlockCipher {
     let rounds = self.variantNr
     let rk = self.expandedKeyInv
 
-    // Save miliseconds by not using `block.toUInt32Array()`
+    // Save milliseconds by not using `block.toUInt32Array()`
     let b00 = UInt32(block[block.startIndex.advanced(by: 0)])
     let b01 = UInt32(block[block.startIndex.advanced(by: 1)]) << 8
     let b02 = UInt32(block[block.startIndex.advanced(by: 2)]) << 16
diff --git a/Sources/CryptoSwift/CMAC.swift b/Sources/CryptoSwift/CMAC.swift
index 8cdb9b3..c0fc227 100644
--- a/Sources/CryptoSwift/CMAC.swift
+++ b/Sources/CryptoSwift/CMAC.swift
@@ -86,7 +86,7 @@ public class CMAC: Authenticator {
   // MARK: Helper methods
 
   /**
-   Performs left shift by one bit to the bit string aquired after concatenating al bytes in the byte array
+   Performs left shift by one bit to the bit string acquired after concatenating al bytes in the byte array
    - parameters:
    - bytes: byte array
    - returns: bit shifted bit string split again in array of bytes
diff --git a/Sources/CryptoSwift/StreamDecryptor.swift b/Sources/CryptoSwift/StreamDecryptor.swift
index 51171cf..125710a 100644
--- a/Sources/CryptoSwift/StreamDecryptor.swift
+++ b/Sources/CryptoSwift/StreamDecryptor.swift
@@ -66,7 +66,7 @@ final class StreamDecryptor: Cryptor, Updatable {
       plaintext = Array(try finalizingWorker.didDecryptLast(bytes: plaintext.slice))
     }
 
-    // omit unecessary calculation if not needed
+    // omit unnecessary calculation if not needed
     if self.padding != .noPadding {
       self.lastBlockRemainder = plaintext.count.quotientAndRemainder(dividingBy: self.blockSize).remainder
     }
diff --git a/Sources/CryptoSwift/StreamEncryptor.swift b/Sources/CryptoSwift/StreamEncryptor.swift
index 503f3c1..15e6838 100644
--- a/Sources/CryptoSwift/StreamEncryptor.swift
+++ b/Sources/CryptoSwift/StreamEncryptor.swift
@@ -54,7 +54,7 @@ final class StreamEncryptor: Cryptor, Updatable {
       encrypted += self.worker.encrypt(block: chunk)
     }
 
-    // omit unecessary calculation if not needed
+    // omit unnecessary calculation if not needed
     if self.padding != .noPadding {
       self.lastBlockRemainder = encrypted.count.quotientAndRemainder(dividingBy: self.blockSize).remainder
     }