AES needs to be CBC, not CTR.

core/c/aes.c

@@ -0,0 +1,597 @@
+/*
+
+Source: https://github.com/kokke/tiny-AES-c
+
+This is an implementation of the AES algorithm, specifically ECB and CBC mode.
+Block size can be chosen in aes.h - available choices are AES128, AES192, AES256.
+
+The implementation is verified against the test vectors in:
+  National Institute of Standards and Technology Special Publication 800-38A 2001 ED
+
+ECB-AES128
+----------
+
+  plain-text:
+    6bc1bee22e409f96e93d7e117393172a
+    ae2d8a571e03ac9c9eb76fac45af8e51
+    30c81c46a35ce411e5fbc1191a0a52ef
+    f69f2445df4f9b17ad2b417be66c3710
+
+  key:
+    2b7e151628aed2a6abf7158809cf4f3c
+
+  resulting cipher
+    3ad77bb40d7a3660a89ecaf32466ef97 
+    f5d3d58503b9699de785895a96fdbaaf 
+    43b1cd7f598ece23881b00e3ed030688 
+    7b0c785e27e8ad3f8223207104725dd4 
+
+
+NOTE:   String length must be evenly divisible by 16byte (str_len % 16 == 0)
+        You should pad the end of the string with zeros if this is not the case.
+        For AES192/256 the block size is proportionally larger.
+
+*/
+
+
+/*****************************************************************************/
+/* Includes:                                                                 */
+/*****************************************************************************/
+#include <string.h>
+#include "aes.h"
+
+/*****************************************************************************/
+/* Defines:                                                                  */
+/*****************************************************************************/
+// The number of columns comprising a state in AES. This is a constant in AES. Value=4
+#define Nb 4
+
+#if defined(AES_256) && (AES_256 == 1)
+    #define Nk 8
+    #define KEYLEN 32
+    #define Nr 14
+    #define keyExpSize 240
+#elif defined(AES_192) && (AES_192 == 1)
+    #define Nk 6
+    #define KEYLEN 24
+    #define Nr 12
+    #define keyExpSize 208
+#elif defined(AES_128) && (AES_128 == 1)
+    #define Nk 4        // The number of 32 bit words in a key.
+    #define KEYLEN 16   // Key length in bytes
+    #define Nr 10       // The number of rounds in AES Cipher.
+    #define keyExpSize 176
+#else
+    #error Must define either AES_128, AES_192 or AES_256.
+#endif
+
+// jcallan@github points out that declaring Multiply as a function 
+// reduces code size considerably with the Keil ARM compiler.
+// See this link for more information: https://github.com/kokke/tiny-AES128-C/pull/3
+#ifndef MULTIPLY_AS_A_FUNCTION
+  #define MULTIPLY_AS_A_FUNCTION 0
+#endif
+
+
+/*****************************************************************************/
+/* Private variables:                                                        */
+/*****************************************************************************/
+// state - array holding the intermediate results during decryption.
+typedef uint8_t state_t[4][4];
+static state_t* state;
+
+// The array that stores the round keys.
+static uint8_t RoundKey[keyExpSize];
+
+// The Key input to the AES Program
+static const uint8_t* Key;
+
+#if defined(AES_CBC) && AES_CBC
+  // Initial Vector used only for CBC mode
+  static uint8_t* Iv;
+#endif
+
+// The lookup-tables are marked const so they can be placed in read-only storage instead of RAM
+// The numbers below can be computed dynamically trading ROM for RAM - 
+// This can be useful in (embedded) bootloader applications, where ROM is often limited.
+static const uint8_t sbox[256] = {
+  //0     1    2      3     4    5     6     7      8    9     A      B    C     D     E     F
+  0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
+  0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
+  0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
+  0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
+  0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
+  0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
+  0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
+  0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
+  0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
+  0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
+  0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
+  0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
+  0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
+  0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
+  0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
+  0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 };
+
+static const uint8_t rsbox[256] = {
+  0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
+  0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
+  0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
+  0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
+  0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
+  0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
+  0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
+  0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
+  0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
+  0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
+  0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
+  0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
+  0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
+  0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
+  0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
+  0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d };
+
+// The round constant word array, Rcon[i], contains the values given by 
+// x to th e power (i-1) being powers of x (x is denoted as {02}) in the field GF(2^8)
+static const uint8_t Rcon[11] = {
+  0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36 };
+
+/*
+ * Jordan Goulder points out in PR #12 (https://github.com/kokke/tiny-AES128-C/pull/12),
+ * that you can remove most of the elements in the Rcon array, because they are unused.
+ *
+ * From Wikipedia's article on the Rijndael key schedule @ https://en.wikipedia.org/wiki/Rijndael_key_schedule#Rcon
+ * 
+ * "Only the first some of these constants are actually used – up to rcon[10] for AES-128 (as 11 round keys are needed), 
+ *  up to rcon[8] for AES-192, up to rcon[7] for AES-256. rcon[0] is not used in AES algorithm."
+ *
+ * ... which is why the full array below has been 'disabled' below.
+ */
+#if 0
+static const uint8_t Rcon[256] = {
+  0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a,
+  0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39,
+  0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
+  0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8,
+  0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef,
+  0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc,
+  0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b,
+  0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3,
+  0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94,
+  0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20,
+  0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35,
+  0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f,
+  0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04,
+  0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63,
+  0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd,
+  0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d };
+#endif
+
+/*****************************************************************************/
+/* Private functions:                                                        */
+/*****************************************************************************/
+static uint8_t getSBoxValue(uint8_t num)
+{
+  return sbox[num];
+}
+
+static uint8_t getSBoxInvert(uint8_t num)
+{
+  return rsbox[num];
+}
+
+// This function produces Nb(Nr+1) round keys. The round keys are used in each round to decrypt the states. 
+static void KeyExpansion(void)
+{
+  uint32_t i;
+  uint8_t k, tempa[4]; // Used for the column/row operations
+  
+  // The first round key is the key itself.
+  for (i = 0; i < Nk; ++i)
+  {
+    RoundKey[(i * 4) + 0] = Key[(i * 4) + 0];
+    RoundKey[(i * 4) + 1] = Key[(i * 4) + 1];
+    RoundKey[(i * 4) + 2] = Key[(i * 4) + 2];
+    RoundKey[(i * 4) + 3] = Key[(i * 4) + 3];
+  }
+
+  // All other round keys are found from the previous round keys.
+  //i == Nk
+  for (; i < Nb * (Nr + 1); ++i)
+  {
+    {
+      tempa[0]=RoundKey[(i-1) * 4 + 0];
+      tempa[1]=RoundKey[(i-1) * 4 + 1];
+      tempa[2]=RoundKey[(i-1) * 4 + 2];
+      tempa[3]=RoundKey[(i-1) * 4 + 3];
+    }
+
+    if (i % Nk == 0)
+    {
+      // This function shifts the 4 bytes in a word to the left once.
+      // [a0,a1,a2,a3] becomes [a1,a2,a3,a0]
+
+      // Function RotWord()
+      {
+        k = tempa[0];
+        tempa[0] = tempa[1];
+        tempa[1] = tempa[2];
+        tempa[2] = tempa[3];
+        tempa[3] = k;
+      }
+
+      // SubWord() is a function that takes a four-byte input word and 
+      // applies the S-box to each of the four bytes to produce an output word.
+
+      // Function Subword()
+      {
+        tempa[0] = getSBoxValue(tempa[0]);
+        tempa[1] = getSBoxValue(tempa[1]);
+        tempa[2] = getSBoxValue(tempa[2]);
+        tempa[3] = getSBoxValue(tempa[3]);
+      }
+
+      tempa[0] =  tempa[0] ^ Rcon[i/Nk];
+    }
+#if defined(AES256) && (AES256 == 1)
+    if (i % Nk == 4)
+    {
+      // Function Subword()
+      {
+        tempa[0] = getSBoxValue(tempa[0]);
+        tempa[1] = getSBoxValue(tempa[1]);
+        tempa[2] = getSBoxValue(tempa[2]);
+        tempa[3] = getSBoxValue(tempa[3]);
+      }
+    }
+#endif
+    RoundKey[i * 4 + 0] = RoundKey[(i - Nk) * 4 + 0] ^ tempa[0];
+    RoundKey[i * 4 + 1] = RoundKey[(i - Nk) * 4 + 1] ^ tempa[1];
+    RoundKey[i * 4 + 2] = RoundKey[(i - Nk) * 4 + 2] ^ tempa[2];
+    RoundKey[i * 4 + 3] = RoundKey[(i - Nk) * 4 + 3] ^ tempa[3];
+  }
+}
+
+// This function adds the round key to state.
+// The round key is added to the state by an XOR function.
+static void AddRoundKey(uint8_t round)
+{
+  uint8_t i,j;
+  for (i=0;i<4;++i)
+  {
+    for (j = 0; j < 4; ++j)
+    {
+      (*state)[i][j] ^= RoundKey[round * Nb * 4 + i * Nb + j];
+    }
+  }
+}
+
+// The SubBytes Function Substitutes the values in the
+// state matrix with values in an S-box.
+static void SubBytes(void)
+{
+  uint8_t i, j;
+  for (i = 0; i < 4; ++i)
+  {
+    for (j = 0; j < 4; ++j)
+    {
+      (*state)[j][i] = getSBoxValue((*state)[j][i]);
+    }
+  }
+}
+
+// The ShiftRows() function shifts the rows in the state to the left.
+// Each row is shifted with different offset.
+// Offset = Row number. So the first row is not shifted.
+static void ShiftRows(void)
+{
+  uint8_t temp;
+
+  // Rotate first row 1 columns to left  
+  temp           = (*state)[0][1];
+  (*state)[0][1] = (*state)[1][1];
+  (*state)[1][1] = (*state)[2][1];
+  (*state)[2][1] = (*state)[3][1];
+  (*state)[3][1] = temp;
+
+  // Rotate second row 2 columns to left  
+  temp           = (*state)[0][2];
+  (*state)[0][2] = (*state)[2][2];
+  (*state)[2][2] = temp;
+
+  temp           = (*state)[1][2];
+  (*state)[1][2] = (*state)[3][2];
+  (*state)[3][2] = temp;
+
+  // Rotate third row 3 columns to left
+  temp           = (*state)[0][3];
+  (*state)[0][3] = (*state)[3][3];
+  (*state)[3][3] = (*state)[2][3];
+  (*state)[2][3] = (*state)[1][3];
+  (*state)[1][3] = temp;
+}
+
+static uint8_t xtime(uint8_t x)
+{
+  return (uint8_t)((x << 1) ^ (((x >> 7) & 1) * 0x1b));
+}
+
+// MixColumns function mixes the columns of the state matrix
+static void MixColumns(void)
+{
+  uint8_t i;
+  uint8_t Tmp,Tm,t;
+  for (i = 0; i < 4; ++i)
+  {  
+    t   = (*state)[i][0];
+    Tmp = (*state)[i][0] ^ (*state)[i][1] ^ (*state)[i][2] ^ (*state)[i][3] ;
+    Tm  = (*state)[i][0] ^ (*state)[i][1] ; Tm = xtime(Tm);  (*state)[i][0] ^= Tm ^ Tmp ;
+    Tm  = (*state)[i][1] ^ (*state)[i][2] ; Tm = xtime(Tm);  (*state)[i][1] ^= Tm ^ Tmp ;
+    Tm  = (*state)[i][2] ^ (*state)[i][3] ; Tm = xtime(Tm);  (*state)[i][2] ^= Tm ^ Tmp ;
+    Tm  = (*state)[i][3] ^ t ;              Tm = xtime(Tm);  (*state)[i][3] ^= Tm ^ Tmp ;
+  }
+}
+
+// Multiply is used to multiply numbers in the field GF(2^8)
+#if MULTIPLY_AS_A_FUNCTION
+static uint8_t Multiply(uint8_t x, uint8_t y)
+{
+  return (((y & 1) * x) ^
+       ((y>>1 & 1) * xtime(x)) ^
+       ((y>>2 & 1) * xtime(xtime(x))) ^
+       ((y>>3 & 1) * xtime(xtime(xtime(x)))) ^
+       ((y>>4 & 1) * xtime(xtime(xtime(xtime(x))))));
+  }
+#else
+#define Multiply(x, y) (uint8_t)                      \
+      (  ((y & 1) * x) ^                              \
+      ((y>>1 & 1) * xtime(x)) ^                       \
+      ((y>>2 & 1) * xtime(xtime(x))) ^                \
+      ((y>>3 & 1) * xtime(xtime(xtime(x)))) ^         \
+      ((y>>4 & 1) * xtime(xtime(xtime(xtime(x))))))   \
+
+#endif
+
+// MixColumns function mixes the columns of the state matrix.
+// The method used to multiply may be difficult to understand for the inexperienced.
+// Please use the references to gain more information.
+static void InvMixColumns(void)
+{
+  int i;
+  uint8_t a, b, c, d;
+  for (i = 0; i < 4; ++i)
+  { 
+    a = (*state)[i][0];
+    b = (*state)[i][1];
+    c = (*state)[i][2];
+    d = (*state)[i][3];
+
+    (*state)[i][0] = Multiply(a, 0x0e) ^ Multiply(b, 0x0b) ^ Multiply(c, 0x0d) ^ Multiply(d, 0x09);
+    (*state)[i][1] = Multiply(a, 0x09) ^ Multiply(b, 0x0e) ^ Multiply(c, 0x0b) ^ Multiply(d, 0x0d);
+    (*state)[i][2] = Multiply(a, 0x0d) ^ Multiply(b, 0x09) ^ Multiply(c, 0x0e) ^ Multiply(d, 0x0b);
+    (*state)[i][3] = Multiply(a, 0x0b) ^ Multiply(b, 0x0d) ^ Multiply(c, 0x09) ^ Multiply(d, 0x0e);
+  }
+}
+
+
+// The SubBytes Function Substitutes the values in the
+// state matrix with values in an S-box.
+static void InvSubBytes(void)
+{
+  uint8_t i,j;
+  for (i = 0; i < 4; ++i)
+  {
+    for (j = 0; j < 4; ++j)
+    {
+      (*state)[j][i] = getSBoxInvert((*state)[j][i]);
+    }
+  }
+}
+
+static void InvShiftRows(void)
+{
+  uint8_t temp;
+
+  // Rotate first row 1 columns to right  
+  temp = (*state)[3][1];
+  (*state)[3][1] = (*state)[2][1];
+  (*state)[2][1] = (*state)[1][1];
+  (*state)[1][1] = (*state)[0][1];
+  (*state)[0][1] = temp;
+
+  // Rotate second row 2 columns to right 
+  temp = (*state)[0][2];
+  (*state)[0][2] = (*state)[2][2];
+  (*state)[2][2] = temp;
+
+  temp = (*state)[1][2];
+  (*state)[1][2] = (*state)[3][2];
+  (*state)[3][2] = temp;
+
+  // Rotate third row 3 columns to right
+  temp = (*state)[0][3];
+  (*state)[0][3] = (*state)[1][3];
+  (*state)[1][3] = (*state)[2][3];
+  (*state)[2][3] = (*state)[3][3];
+  (*state)[3][3] = temp;
+}
+
+
+// Cipher is the main function that encrypts the PlainText.
+static void Cipher(void)
+{
+  uint8_t round = 0;
+
+  // Add the First round key to the state before starting the rounds.
+  AddRoundKey(0); 
+  
+  // There will be Nr rounds.
+  // The first Nr-1 rounds are identical.
+  // These Nr-1 rounds are executed in the loop below.
+  for (round = 1; round < Nr; ++round)
+  {
+    SubBytes();
+    ShiftRows();
+    MixColumns();
+    AddRoundKey(round);
+  }
+  
+  // The last round is given below.
+  // The MixColumns function is not here in the last round.
+  SubBytes();
+  ShiftRows();
+  AddRoundKey(Nr);
+}
+
+static void InvCipher(void)
+{
+  uint8_t round=0;
+
+  // Add the First round key to the state before starting the rounds.
+  AddRoundKey(Nr); 
+
+  // There will be Nr rounds.
+  // The first Nr-1 rounds are identical.
+  // These Nr-1 rounds are executed in the loop below.
+  for (round = (Nr - 1); round > 0; --round)
+  {
+    InvShiftRows();
+    InvSubBytes();
+    AddRoundKey(round);
+    InvMixColumns();
+  }
+  
+  // The last round is given below.
+  // The MixColumns function is not here in the last round.
+  InvShiftRows();
+  InvSubBytes();
+  AddRoundKey(0);
+}
+
+
+/*****************************************************************************/
+/* Public functions:                                                         */
+/*****************************************************************************/
+#if defined(AES_ECB) && (AES_ECB == 1)
+
+
+void AES_ECB_encrypt(uint8_t *output, const uint8_t *input, const uint32_t length, const uint8_t *key)
+{
+  // Copy input to output, and work in-memory on output
+  memcpy(output, input, length);
+  state = (state_t*)output;
+
+  Key = key;
+  KeyExpansion();
+
+  // The next function call encrypts the PlainText with the Key using AES algorithm.
+  Cipher();
+}
+
+void AES_ECB_decrypt(uint8_t *output, const uint8_t *input, const uint32_t length, const uint8_t *key)
+{
+  // Copy input to output, and work in-memory on output
+  memcpy(output, input, length);
+  state = (state_t*)output;
+
+  // The KeyExpansion routine must be called before encryption.
+  Key = key;
+  KeyExpansion();
+
+  InvCipher();
+}
+
+
+#endif // #if defined(AES_ECB) && (AES_ECB == 1)
+
+
+
+
+
+#if defined(AES_CBC) && (AES_CBC == 1)
+
+
+static void XorWithIv(uint8_t* buf)
+{
+  uint8_t i;
+  for (i = 0; i < AES_BLOCKLEN; ++i) //WAS for(i = 0; i < KEYLEN; ++i) but the block in AES is always 128bit so 16 bytes!
+  {
+    buf[i] ^= Iv[i];
+  }
+}
+
+void AES_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv)
+{
+  uintptr_t i;
+  uint8_t extra = (uint8_t)(length % AES_BLOCKLEN); /* Remaining bytes in the last non-full block */
+
+  // Skip the key expansion if key is passed as 0
+  if (0 != key)
+  {
+    Key = key;
+    KeyExpansion();
+  }
+
+  if (iv != 0)
+  {
+    Iv = (uint8_t*)iv;
+  }
+
+  for (i = 0; i < length; i += AES_BLOCKLEN)
+  {
+    XorWithIv(input);
+    memcpy(output, input, AES_BLOCKLEN);
+    state = (state_t*)output;
+    Cipher();
+    Iv = output;
+    input += AES_BLOCKLEN;
+    output += AES_BLOCKLEN;
+    //printf("Step %d - %d", i/16, i);
+  }
+
+  if (extra)
+  {
+    memcpy(output, input, extra);
+    state = (state_t*)output;
+    Cipher();
+  }
+}
+
+void AES_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv)
+{
+  uintptr_t i;
+  uint8_t extra = (uint8_t)(length % AES_BLOCKLEN); /* Remaining bytes in the last non-full block */
+
+  // Skip the key expansion if key is passed as 0
+  if (0 != key)
+  {
+    Key = key;
+    KeyExpansion();
+  }
+
+  // If iv is passed as 0, we continue to encrypt without re-setting the Iv
+  if (iv != 0)
+  {
+    Iv = (uint8_t*)iv;
+  }
+
+  for (i = 0; i < length; i += AES_BLOCKLEN)
+  {
+    memcpy(output, input, AES_BLOCKLEN);
+    state = (state_t*)output;
+    InvCipher();
+    XorWithIv(output);
+    Iv = input;
+    input += AES_BLOCKLEN;
+    output += AES_BLOCKLEN;
+  }
+
+  if (extra)
+  {
+    memcpy(output, input, extra);
+    state = (state_t*)output;
+    InvCipher();
+  }
+}
+
+#endif // #if defined(AES_CBC) && (AES_CBC == 1)

core/c/aes.h

@@ -0,0 +1,50 @@
+/*
+
+Source: https://github.com/kokke/tiny-AES-c
+
+This is an implementation of the AES algorithm, specifically ECB and CBC mode.
+
+*/
+
+#ifndef _AES_H_
+#define _AES_H_
+
+#include <stdint.h>
+
+
+// #define the macros below to 1/0 to enable/disable the mode of operation.
+//
+// AES_CBC enables AES encryption in CBC-mode of operation.
+// AES_ECB enables the basic ECB 16-byte block algorithm. Both can be enabled simultaneously.
+
+// The #ifndef-guard allows it to be configured before #include'ing or at compile time.
+#ifndef AES_CBC
+  #define AES_CBC 1
+#endif
+
+#ifndef AES_ECB
+  #define AES_ECB 1
+#endif
+
+#define AES_128 1
+//#define AES_192 1
+//#define AES_256 1
+#define AES_BLOCKLEN 16 //Block length in bytes AES is 128b block only
+
+#if defined(AES_ECB) && (AES_ECB == 1)
+
+void AES_ECB_encrypt(uint8_t *output, const uint8_t *input, const uint32_t length, const uint8_t *key);
+void AES_ECB_decrypt(uint8_t *output, const uint8_t *input, const uint32_t length, const uint8_t *key);
+
+#endif // #if defined(AES_ECB) && (AES_ECB == !)
+
+
+#if defined(AES_CBC) && (AES_CBC == 1)
+
+void AES_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, const uint32_t length, const uint8_t* key, const uint8_t* iv);
+void AES_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, const uint32_t length, const uint8_t* key, const uint8_t* iv);
+
+#endif // #if defined(AES_CBC) && (AES_CBC == 1)
+
+
+#endif //_AES_H_

core/c/mpw-util.c

@@ -32,6 +32,9 @@
 #elif MPW_SODIUM
 #include "sodium.h"
 #endif
+#define AES_ECB 0
+#define AES_CBC 1
+#include "aes.h"
 
 #include "mpw-util.h"
 
@@ -266,40 +269,23 @@ uint8_t const *mpw_hash_hmac_sha256(const uint8_t *key, const size_t keySize, co
 
 static uint8_t const *mpw_aes(bool encrypt, const uint8_t *key, const size_t keySize, const uint8_t *buf, const size_t bufSize) {
 
-#if MPW_SODIUM
+    if (!key || keySize < 16)
-    if (!key || keySize < crypto_stream_KEYBYTES)
         return NULL;
 
-    uint8_t nonce[crypto_stream_NONCEBYTES];
+    uint8_t iv[16];
-    bzero( (void *)nonce, sizeof( nonce ) );
+    bzero( (void *)iv, sizeof( iv ) );
+    uint8_t aesBuf[bufSize];
+    memcpy( aesBuf, buf, bufSize );
+    uint8_t *resultBuf = malloc( bufSize );
 
-#pragma GCC diagnostic push
+    if (encrypt)
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+        AES_CBC_encrypt_buffer( resultBuf, aesBuf, (uint32_t)bufSize, key, iv );
-#pragma clang diagnostic push
+    else
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+        AES_CBC_decrypt_buffer( resultBuf, aesBuf, (uint32_t)bufSize, key, iv );
-    if (encrypt) {
+    bzero( aesBuf, bufSize );
-        uint8_t *const cipherBuf = malloc( bufSize );
+    bzero( iv, bufSize );
-        if (crypto_stream_aes128ctr_xor( cipherBuf, buf, bufSize, nonce, key ) != 0) {
+
-            mpw_free( &cipherBuf, bufSize );
+    return resultBuf;
-            return NULL;
-        }
-        return cipherBuf;
-    }
-    else {
-        uint8_t *const plainBuf = malloc( bufSize );
-        if (crypto_stream_aes128ctr( plainBuf, bufSize, nonce, key ) != 0) {
-            mpw_free( &plainBuf, bufSize );
-            return NULL;
-        }
-        for (size_t c = 0; c < bufSize; ++c)
-            plainBuf[c] = buf[c] ^ plainBuf[c];
-        return plainBuf;
-    }
-#pragma clang diagnostic pop
-#pragma GCC diagnostic pop
-#else
-#error No crypto support for mpw_aes.
-#endif
 }
 
 uint8_t const *mpw_aes_encrypt(const uint8_t *key, const size_t keySize, const uint8_t *plainBuf, const size_t bufSize) {

platform-darwin/MasterPassword-iOS.xcodeproj/project.pbxproj

@@ -251,6 +251,7 @@
 		DAA1765419D8B82B0044227B /* choose_type.png in Resources */ = {isa = PBXBuildFile; fileRef = DAA1763E19D8B82B0044227B /* choose_type.png */; };
 		DAA449D21EEC4B5800E7BDD5 /* mpw-marshal.c in Sources */ = {isa = PBXBuildFile; fileRef = DAA449D01EEC4B5800E7BDD5 /* mpw-marshal.c */; };
 		DAADBFE01A68763B00F7A756 /* mpw-algorithm.c in Sources */ = {isa = PBXBuildFile; fileRef = 93D3969393A3A46BD27D7078 /* mpw-algorithm.c */; };
+		DAB07C9D1F7725C500CC6D43 /* aes.c in Sources */ = {isa = PBXBuildFile; fileRef = DAB07C9B1F7725C500CC6D43 /* aes.c */; };
 		DAB7AE5D1F3D752900C856B1 /* libjson-c.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DAB7AE5C1F3D752900C856B1 /* libjson-c.a */; };
 		DAB7AE771F3D755B00C856B1 /* libjson-c.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DAB7AE761F3D755B00C856B1 /* libjson-c.a */; };
 		DAB7AE991F3DDEE000C856B1 /* mpw-marshal-util.c in Sources */ = {isa = PBXBuildFile; fileRef = DAB7AE981F3DDEE000C856B1 /* mpw-marshal-util.c */; };
@@ -873,6 +874,8 @@
 		DAA449D01EEC4B5800E7BDD5 /* mpw-marshal.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = "mpw-marshal.c"; sourceTree = "<group>"; };
 		DAA449D11EEC4B5800E7BDD5 /* mpw-marshal.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "mpw-marshal.h"; sourceTree = "<group>"; };
 		DAAC35DD156BD77D00C5FD93 /* CoreTelephony.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreTelephony.framework; path = System/Library/Frameworks/CoreTelephony.framework; sourceTree = SDKROOT; };
+		DAB07C9B1F7725C500CC6D43 /* aes.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = aes.c; sourceTree = "<group>"; };
+		DAB07C9C1F7725C500CC6D43 /* aes.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = aes.h; sourceTree = "<group>"; };
 		DAB7AE5C1F3D752900C856B1 /* libjson-c.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = "libjson-c.a"; path = "External/libjson-c/libjson-c-ios/lib/libjson-c.a"; sourceTree = "<group>"; };
 		DAB7AE611F3D755B00C856B1 /* arraylist.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = arraylist.h; sourceTree = "<group>"; };
 		DAB7AE621F3D755B00C856B1 /* bits.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = bits.h; sourceTree = "<group>"; };
@@ -1749,6 +1752,8 @@
 		93D39A2239FFFE6BEC83E191 /* C */ = {
 			isa = PBXGroup;
 			children = (
+				DAB07C9B1F7725C500CC6D43 /* aes.c */,
+				DAB07C9C1F7725C500CC6D43 /* aes.h */,
 				DA5B0B3E1F36469400B663F0 /* base64.c */,
 				DA5B0B3F1F36469400B663F0 /* base64.h */,
 				93D390A99850139D0FF0211E /* mpw-algorithm_v0.c */,
@@ -3994,6 +3999,7 @@
 				93D396D8B67DA6522CDBA142 /* MPCoachmarkViewController.m in Sources */,
 				DAADBFE01A68763B00F7A756 /* mpw-algorithm.c in Sources */,
 				DA0CC54E1EB6AD0E009A8ED9 /* MasterPassword.xcdatamodeld in Sources */,
+				DAB07C9D1F7725C500CC6D43 /* aes.c in Sources */,
 				93D39EAA4D064193074D3021 /* MPFixable.m in Sources */,
 				93D394982CBD25D46692DD7C /* MPWebViewController.m in Sources */,
 				93D39D8F78978196D6ABDEDE /* MPNavigationController.m in Sources */,

platform-darwin/MasterPassword-macOS.xcodeproj/project.pbxproj

@@ -130,6 +130,10 @@
 		DAADCC6919FB007F00987B1D /* NSManagedObjectModel+KCOrderedAccessorFix.m in Sources */ = {isa = PBXBuildFile; fileRef = DAADCC6719FB007F00987B1D /* NSManagedObjectModel+KCOrderedAccessorFix.m */; };
 		DAADCC6A19FB00B500987B1D /* libKCOrderedAccessorFix.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DAADCC5019FB006500987B1D /* libKCOrderedAccessorFix.a */; };
 		DAAF16661F5CA3240013B8AE /* mpw-cli-util.c in Sources */ = {isa = PBXBuildFile; fileRef = DAAF16631F5897EA0013B8AE /* mpw-cli-util.c */; };
+		DAB07CA01F7725D400CC6D43 /* aes.c in Sources */ = {isa = PBXBuildFile; fileRef = DAB07C9E1F7725D400CC6D43 /* aes.c */; };
+		DAB07CA31F77261400CC6D43 /* aes.c in Sources */ = {isa = PBXBuildFile; fileRef = DAB07C9E1F7725D400CC6D43 /* aes.c */; };
+		DAB07CA51F77261C00CC6D43 /* aes.c in Sources */ = {isa = PBXBuildFile; fileRef = DAB07C9E1F7725D400CC6D43 /* aes.c */; };
+		DAB07CA61F77262400CC6D43 /* aes.c in Sources */ = {isa = PBXBuildFile; fileRef = DAB07C9E1F7725D400CC6D43 /* aes.c */; };
 		DAB7AE5A1F3D74E700C856B1 /* libjson-c.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DAB7AE591F3D74E700C856B1 /* libjson-c.a */; };
 		DAB7AE5B1F3D750B00C856B1 /* libjson-c.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DAB7AE591F3D74E700C856B1 /* libjson-c.a */; };
 		DAB7AE941F3D757B00C856B1 /* libjson-c.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DAB7AE901F3D757B00C856B1 /* libjson-c.a */; };
@@ -976,6 +980,8 @@
 		DAADCC6719FB007F00987B1D /* NSManagedObjectModel+KCOrderedAccessorFix.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "NSManagedObjectModel+KCOrderedAccessorFix.m"; sourceTree = "<group>"; };
 		DAAF16631F5897EA0013B8AE /* mpw-cli-util.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = "mpw-cli-util.c"; sourceTree = "<group>"; };
 		DAAF16641F5897EA0013B8AE /* mpw-cli-util.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "mpw-cli-util.h"; sourceTree = "<group>"; };
+		DAB07C9E1F7725D400CC6D43 /* aes.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = aes.c; sourceTree = "<group>"; };
+		DAB07C9F1F7725D400CC6D43 /* aes.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = aes.h; sourceTree = "<group>"; };
 		DAB7AE591F3D74E700C856B1 /* libjson-c.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = "libjson-c.a"; path = "External/libjson-c/libjson-c-osx/lib/libjson-c.a"; sourceTree = "<group>"; };
 		DAB7AE7B1F3D757B00C856B1 /* arraylist.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = arraylist.h; sourceTree = "<group>"; };
 		DAB7AE7C1F3D757B00C856B1 /* bits.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = bits.h; sourceTree = "<group>"; };
@@ -1876,6 +1882,8 @@
 		DA6773291A4746AF004F356A /* C */ = {
 			isa = PBXGroup;
 			children = (
+				DAB07C9E1F7725D400CC6D43 /* aes.c */,
+				DAB07C9F1F7725D400CC6D43 /* aes.h */,
 				DA5B0B381F36467300B663F0 /* base64.c */,
 				DA5B0B391F36467300B663F0 /* base64.h */,
 				DA1C7AB71F1A8F6E009A3551 /* cli */,
@@ -2669,6 +2677,7 @@
 				DA1C7AAA1F1A8F24009A3551 /* mpw-marshal.c in Sources */,
 				DA1C7AAB1F1A8F24009A3551 /* mpw-types.c in Sources */,
 				DA5B0B3D1F36467900B663F0 /* base64.c in Sources */,
+				DAB07CA31F77261400CC6D43 /* aes.c in Sources */,
 				DAAF16661F5CA3240013B8AE /* mpw-cli-util.c in Sources */,
 				DA1C7AAC1F1A8F24009A3551 /* mpw-util.c in Sources */,
 				DA1C7AC31F1A8FBA009A3551 /* mpw-cli.c in Sources */,
@@ -2684,6 +2693,7 @@
 				DA5B0B3C1F36467900B663F0 /* base64.c in Sources */,
 				DA1C7ACA1F1A8FD8009A3551 /* mpw-types.c in Sources */,
 				DA1C7ACB1F1A8FD8009A3551 /* mpw-util.c in Sources */,
+				DAB07CA61F77262400CC6D43 /* aes.c in Sources */,
 				DA1C7AD71F1A8FE6009A3551 /* mpw-bench.c in Sources */,
 				DA1C7ACD1F1A8FD8009A3551 /* mpw-algorithm.c in Sources */,
 			);
@@ -2704,6 +2714,7 @@
 				DA2686221EBFD7A40001E37E /* MPSiteQuestionEntity+CoreDataProperties.m in Sources */,
 				DA4571201F572F3200D54152 /* PearlCryptUtils.m in Sources */,
 				DACBFCDF1C59B22E007EF90F /* NSMutableSet+Pearl.m in Sources */,
+				DAB07CA01F7725D400CC6D43 /* aes.c in Sources */,
 				DA2686241EBFD7A40001E37E /* MPStoredSiteEntity+CoreDataProperties.m in Sources */,
 				DA6774311A4746AF004F356A /* mpw-util.c in Sources */,
 				DA5E5CF91724A667003798D8 /* MPAppDelegate_Key.m in Sources */,
@@ -2745,6 +2756,7 @@
 			files = (
 				DA1C7AD81F1A8FF4009A3551 /* mpw-tests-util.c in Sources */,
 				DA6774451A474A3B004F356A /* mpw-types.c in Sources */,
+				DAB07CA51F77261C00CC6D43 /* aes.c in Sources */,
 				DA6774461A474A3B004F356A /* mpw-util.c in Sources */,
 				DA1C7AD91F1A8FF4009A3551 /* mpw-tests.c in Sources */,
 				DA5B0B3B1F36467800B663F0 /* base64.c in Sources */,

platform-darwin/Scripts/build_libsodium-ios

@@ -23,7 +23,7 @@ mkdir -p "$prefix/lib" \
     export LDFLAGS="-arch i386 -isysroot $SDKROOT -mios-simulator-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -flto $LDFLAGS"
     export CPPFLAGS="$CFLAGS $CPPFLAGS"
     [[ -e Makefile ]] && make -s distclean
-    ./configure --host=i686-apple --disable-shared --prefix="$prefix_i386"
+    ./configure --host=i686-apple --disable-shared --enable-minimal --prefix="$prefix_i386"
     make -j3 install
 )
 (
@@ -34,7 +34,7 @@ mkdir -p "$prefix/lib" \
     export LDFLAGS="-arch x86_64 -isysroot $SDKROOT -mios-simulator-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -flto $LDFLAGS"
     export CPPFLAGS="$CFLAGS $CPPFLAGS"
     [[ -e Makefile ]] && make -s distclean
-    ./configure --host=x86_64-apple --disable-shared --prefix="$prefix_x86_64"
+    ./configure --host=x86_64-apple --disable-shared --enable-minimal --prefix="$prefix_x86_64"
     make -j3 install
 )
 (
@@ -45,7 +45,7 @@ mkdir -p "$prefix/lib" \
     export LDFLAGS="-mthumb -arch armv7 -isysroot $SDKROOT -mios-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -flto $LDFLAGS"
     export CPPFLAGS="$CFLAGS $CPPFLAGS"
     [[ -e Makefile ]] && make -s distclean
-    ./configure --host=x86_64-apple --target=arm-apple --disable-shared --prefix="$prefix_armv7"
+    ./configure --host=x86_64-apple --target=arm-apple --disable-shared --enable-minimal --prefix="$prefix_armv7"
     make -j3 install
 )
 (
@@ -56,7 +56,7 @@ mkdir -p "$prefix/lib" \
     export LDFLAGS="-mthumb -arch armv7s -isysroot $SDKROOT -mios-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -flto $LDFLAGS"
     export CPPFLAGS="$CFLAGS $CPPFLAGS"
     [[ -e Makefile ]] && make -s distclean
-    ./configure --host=x86_64-apple --target=arm-apple --disable-shared --prefix="$prefix_armv7s"
+    ./configure --host=x86_64-apple --target=arm-apple --disable-shared --enable-minimal --prefix="$prefix_armv7s"
     make -j3 install
 )
 (
@@ -67,7 +67,7 @@ mkdir -p "$prefix/lib" \
     export LDFLAGS="-mthumb -arch arm64 -isysroot $SDKROOT -mios-version-min=${IPHONEOS_DEPLOYMENT_TARGET:-8.0} -flto $LDFLAGS"
     export CPPFLAGS="$CFLAGS $CPPFLAGS"
     [[ -e Makefile ]] && make -s distclean
-    ./configure --host=x86_64-apple --target=arm-apple --disable-shared --prefix="$prefix_arm64"
+    ./configure --host=x86_64-apple --target=arm-apple --disable-shared --enable-minimal --prefix="$prefix_arm64"
     make -j3 install
 )
 

platform-darwin/Scripts/build_libsodium-osx

@@ -19,7 +19,7 @@ mkdir -p "$prefix"
     export LDFLAGS="-arch x86_64 -isysroot $SDKROOT -mmacosx-version-min=${MACOSX_DEPLOYMENT_TARGET:-10.8} -flto $LDFLAGS"
     export CPPFLAGS="$CFLAGS $CPPFLAGS"
     [[ -e Makefile ]] && make -s distclean
-    ./configure --disable-shared --prefix="$prefix"
+    ./configure --disable-shared --enable-minimal --prefix="$prefix"
     make -j3 check
     make -j3 install
 )

platform-independent/cli-c/CMakeLists.txt

@@ -99,7 +99,7 @@ endfunction()
 ### TARGET: MPW
 if( BUILD_MPW )
     # target
-    add_executable( mpw "core/base64.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c" "core/mpw-marshal-util.c" "core/mpw-marshal.c"
+    add_executable( mpw "core/base64.c" "core/aes.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c" "core/mpw-marshal-util.c" "core/mpw-marshal.c"
                         "cli/mpw-cli-util.c" "cli/mpw-cli.c" )
     target_include_directories( mpw PUBLIC core cli )
 
@@ -113,7 +113,7 @@ endif()
 ### TARGET: MPW-BENCH
 if( BUILD_MPW_BENCH )
     # target
-    add_executable( mpw_bench "core/base64.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c"
+    add_executable( mpw_bench "core/base64.c" "core/aes.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c"
                         "cli/mpw-bench.c" )
     target_include_directories( mpw_bench PUBLIC core cli )
 
@@ -125,7 +125,7 @@ endif()
 ### TARGET: MPW-TESTS
 if( BUILD_MPW_TESTS )
     # target
-    add_executable( mpw_tests "core/base64.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c"
+    add_executable( mpw_tests "core/base64.c" "core/aes.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c"
                               "cli/mpw-tests-util.c" "cli/mpw-tests.c" )
     target_include_directories( mpw_tests PUBLIC core cli )
 

platform-independent/cli-c/build

@@ -73,7 +73,7 @@ mpw() {
     )
 
     # build
-    cc "${cflags[@]}" "$@" "core/base64.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c" "core/mpw-marshal-util.c" "core/mpw-marshal.c" "cli/mpw-cli-util.c" \
+    cc "${cflags[@]}" "$@" "core/base64.c" "core/aes.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c" "core/mpw-marshal-util.c" "core/mpw-marshal.c" "cli/mpw-cli-util.c" \
        "${ldflags[@]}"     "cli/mpw-cli.c" -o "mpw"
     echo "done!  You can now run ./mpw-cli-tests, ./install or use ./$_"
 }
@@ -98,7 +98,7 @@ mpw-bench() {
     )
 
     # build
-    cc "${cflags[@]}" "$@" "core/base64.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c" \
+    cc "${cflags[@]}" "$@" "core/base64.c" "core/aes.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c" \
        "${ldflags[@]}"     "cli/mpw-bench.c" -o "mpw-bench"
     echo "done!  You can now use ./$_"
 }
@@ -124,7 +124,7 @@ mpw-tests() {
     )
 
     # build
-    cc "${cflags[@]}" "$@" "core/base64.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c" "cli/mpw-tests-util.c" \
+    cc "${cflags[@]}" "$@" "core/base64.c" "core/aes.c" "core/mpw-algorithm.c" "core/mpw-types.c" "core/mpw-util.c" "cli/mpw-tests-util.c" \
        "${ldflags[@]}"     "cli/mpw-tests.c" -o "mpw-tests"
     echo "done!  You can now use ./$_"
 }