[generic-2.4] add OCF 20100325 support to brcm-2.4

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21357 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 312 insertions, 0 deletions

diff --git a/target/linux/generic-2.4/files/crypto/ocf/kirkwood/cesa/AES/mvAesApi.c b/target/linux/generic-2.4/files/crypto/ocf/kirkwood/cesa/AES/mvAesApi.c
new file mode 100644
index 000000000..b432dc6e6
--- /dev/null
+++ b/target/linux/generic-2.4/files/crypto/ocf/kirkwood/cesa/AES/mvAesApi.c
@@ -0,0 +1,312 @@
+/* rijndael-api-ref.c   v2.1   April 2000
+ * Reference ANSI C code
+ * authors: v2.0 Paulo Barreto
+ *               Vincent Rijmen, K.U.Leuven
+ *          v2.1 Vincent Rijmen, K.U.Leuven
+ *
+ * This code is placed in the public domain.
+ */
+#include "mvOs.h"
+
+#include "mvAes.h"
+#include "mvAesAlg.h"
+
+
+/*  Defines:
+	Add any additional defines you need
+*/
+
+#define     MODE_ECB        1    /*  Are we ciphering in ECB mode?   */
+#define     MODE_CBC        2    /*  Are we ciphering in CBC mode?   */
+#define     MODE_CFB1       3    /*  Are we ciphering in 1-bit CFB mode? */
+
+
+int     aesMakeKey(MV_U8 *expandedKey, MV_U8 *keyMaterial, int keyLen, int blockLen)
+{
+    MV_U8   W[MAXROUNDS+1][4][MAXBC];
+	MV_U8   k[4][MAXKC];
+    MV_U8   j;
+	int     i, rounds, KC;
+	
+	if (expandedKey == NULL) 
+    {
+		return AES_BAD_KEY_INSTANCE;
+	}
+
+	if (!((keyLen == 128) || (keyLen == 192) || (keyLen == 256))) 
+    { 
+		return AES_BAD_KEY_MAT;
+	}
+
+	if (keyMaterial == NULL) 
+    {
+		return AES_BAD_KEY_MAT;
+	}
+
+	/* initialize key schedule: */ 
+ 	for(i=0; i<keyLen/8; i++) 
+    {
+		j = keyMaterial[i];
+		k[i % 4][i / 4] = j; 
+	}	
+	
+	rijndaelKeySched (k, keyLen, blockLen, W);
+#ifdef MV_AES_DEBUG
+    {
+        MV_U8*  pW = &W[0][0][0];
+        int     x;
+
+        mvOsPrintf("Expended Key: size = %d\n", sizeof(W));
+        for(i=0; i<sizeof(W); i++)
+        {
+            mvOsPrintf("%02x ", pW[i]);
+        }
+        for(i=0; i<MAXROUNDS+1; i++)
+        {
+            mvOsPrintf("\n Round #%02d: ", i);
+            for(x=0; x<MAXBC; x++)
+            {
+                mvOsPrintf("%02x%02x%02x%02x ", 
+                    W[i][0][x], W[i][1][x], W[i][2][x], W[i][3][x]);
+            }
+            mvOsPrintf("\n");
+        }
+    }
+#endif /* MV_AES_DEBUG */
+  	switch (keyLen) 
+    {
+	    case 128: 
+            rounds = 10;
+            KC = 4; 
+            break;
+	    case 192: 
+            rounds = 12;
+            KC = 6; 
+            break;
+	    case 256: 
+            rounds = 14;
+            KC = 8; 
+            break;
+	    default : 
+            return (-1);
+	}
+
+    for(i=0; i<MAXBC; i++)
+    {
+        for(j=0; j<4; j++)
+        {
+            expandedKey[i*4+j] = W[rounds][j][i];
+        }
+    }
+    for(; i<KC; i++)
+    {
+        for(j=0; j<4; j++)
+        {
+            expandedKey[i*4+j] = W[rounds-1][j][i+MAXBC-KC];
+        }
+    }
+
+	
+	return 0;
+}
+
+int     aesBlockEncrypt128(MV_U8 mode, MV_U8 *IV, MV_U8 *expandedKey, int  keyLen, 
+                        MV_U32 *plain, int numBlocks, MV_U32 *cipher)
+{
+	int     i, j, t;
+	MV_U8   block[4][MAXBC];
+    int     rounds;
+    char    *input, *outBuffer;
+
+    input = (char*)plain;
+    outBuffer = (char*)cipher;
+
+        /* check parameter consistency: */
+    if( (expandedKey == NULL) || ((keyLen != 128) && (keyLen != 192) && (keyLen != 256))) 
+    {
+        return AES_BAD_KEY_MAT;
+    }
+    if ((mode != MODE_ECB && mode != MODE_CBC))
+    {
+        return AES_BAD_CIPHER_STATE;
+    }
+
+	switch (keyLen) 
+    {
+	    case 128: rounds = 10; break;
+	    case 192: rounds = 12; break;
+	    case 256: rounds = 14; break;
+	    default : return (-3); /* this cannot happen */
+	}
+
+	
+	switch (mode) 
+    {
+	    case MODE_ECB: 
+		    for (i = 0; i < numBlocks; i++) 
+            {
+			    for (j = 0; j < 4; j++) 
+                {
+				    for(t = 0; t < 4; t++)
+				        /* parse input stream into rectangular array */
+					    block[t][j] = input[16*i+4*j+t] & 0xFF;
+			    }                           
+			    rijndaelEncrypt128(block, (MV_U8 (*)[4][MAXBC])expandedKey, rounds);
+			    for (j = 0; j < 4; j++) 
+                {           
+				    /* parse rectangular array into output ciphertext bytes */
+				    for(t = 0; t < 4; t++)
+                        outBuffer[16*i+4*j+t] = (MV_U8) block[t][j];
+
+			    }
+		    }
+		    break;
+		
+	    case MODE_CBC:
+		    for (j = 0; j < 4; j++) 
+            {
+			    for(t = 0; t < 4; t++)
+			    /* parse initial value into rectangular array */
+					block[t][j] = IV[t+4*j] & 0xFF;
+			}
+		    for (i = 0; i < numBlocks; i++) 
+            {
+			    for (j = 0; j < 4; j++) 
+                {
+				    for(t = 0; t < 4; t++)
+				        /* parse input stream into rectangular array and exor with 
+				        IV or the previous ciphertext */
+					    block[t][j] ^= input[16*i+4*j+t] & 0xFF;
+			    }
+			    rijndaelEncrypt128(block, (MV_U8 (*)[4][MAXBC])expandedKey, rounds);
+			    for (j = 0; j < 4; j++) 
+                {
+				    /* parse rectangular array into output ciphertext bytes */
+				    for(t = 0; t < 4; t++)
+					    outBuffer[16*i+4*j+t] = (MV_U8) block[t][j];
+			    }
+		    }
+		    break;
+	
+	    default: return AES_BAD_CIPHER_STATE;
+	}
+	
+	return 0;
+}
+
+int     aesBlockDecrypt128(MV_U8 mode, MV_U8 *IV, MV_U8 *expandedKey, int  keyLen, 
+                            MV_U32 *srcData, int numBlocks, MV_U32 *dstData)
+{
+	int     i, j, t;
+	MV_U8   block[4][MAXBC];
+    MV_U8   iv[4][MAXBC];    
+    int     rounds;
+    char    *input, *outBuffer;
+
+    input = (char*)srcData;
+    outBuffer = (char*)dstData;
+
+    if (expandedKey == NULL) 
+    {
+		return AES_BAD_KEY_MAT;
+	}
+
+    /* check parameter consistency: */
+    if (keyLen != 128 && keyLen != 192 && keyLen != 256)
+    {
+        return AES_BAD_KEY_MAT;
+    }
+    if ((mode != MODE_ECB && mode != MODE_CBC)) 
+    {
+        return AES_BAD_CIPHER_STATE;
+    }
+
+	switch (keyLen) 
+    {
+	    case 128: rounds = 10; break;
+	    case 192: rounds = 12; break;
+	    case 256: rounds = 14; break;
+	    default : return (-3); /* this cannot happen */
+	}
+
+	
+	switch (mode) 
+    {
+	    case MODE_ECB: 
+		    for (i = 0; i < numBlocks; i++) 
+            {
+			    for (j = 0; j < 4; j++) 
+                {
+				    for(t = 0; t < 4; t++)
+                    {
+				        /* parse input stream into rectangular array */
+					    block[t][j] = input[16*i+4*j+t] & 0xFF;
+                    }
+			    }
+			    rijndaelDecrypt128(block, (MV_U8 (*)[4][MAXBC])expandedKey, rounds);
+			    for (j = 0; j < 4; j++) 
+                {
+				    /* parse rectangular array into output ciphertext bytes */
+				    for(t = 0; t < 4; t++)
+					    outBuffer[16*i+4*j+t] = (MV_U8) block[t][j];
+			    }
+		    }
+		    break;
+		
+	    case MODE_CBC:
+		    /* first block */
+		    for (j = 0; j < 4; j++) 
+            {
+			    for(t = 0; t < 4; t++)
+                {
+			        /* parse input stream into rectangular array */
+				    block[t][j] = input[4*j+t] & 0xFF;
+                    iv[t][j] = block[t][j];
+                }
+		    }
+		    rijndaelDecrypt128(block, (MV_U8 (*)[4][MAXBC])expandedKey, rounds);
+		
+		    for (j = 0; j < 4; j++) 
+            {
+			    /* exor the IV and parse rectangular array into output ciphertext bytes */
+			    for(t = 0; t < 4; t++)
+                {
+				    outBuffer[4*j+t] = (MV_U8) (block[t][j] ^ IV[t+4*j]);
+                    IV[t+4*j] = iv[t][j];
+                }
+		    }
+		
+		    /* next blocks */
+		    for (i = 1; i < numBlocks; i++) 
+            {
+			    for (j = 0; j < 4; j++) 
+                {
+				    for(t = 0; t < 4; t++)
+                    {
+				        /* parse input stream into rectangular array */
+                        iv[t][j] = input[16*i+4*j+t] & 0xFF;
+					    block[t][j] = iv[t][j];
+                    }
+			    }
+			    rijndaelDecrypt128(block, (MV_U8 (*)[4][MAXBC])expandedKey, rounds);
+			
+			    for (j = 0; j < 4; j++) 
+                {
+				    /* exor previous ciphertext block and parse rectangular array 
+				       into output ciphertext bytes */
+				    for(t = 0; t < 4; t++)
+                    {
+					    outBuffer[16*i+4*j+t] = (MV_U8) (block[t][j] ^ IV[t+4*j]);
+                        IV[t+4*j] = iv[t][j];
+                    }
+			    }
+		    }
+		    break;
+	
+	    default: return AES_BAD_CIPHER_STATE;
+	}
+	
+	return 0;
+}
+
+