ifeq ($(CONFIG_TLS), internal)
OBJS_both += ../src/crypto/sha1-internal.o
OBJS_both += ../src/crypto/des-internal.o
-OBJS_both += ../src/crypto/aes-internal.o ../src/crypto/aes-internal-dec.o
+OBJS_both += ../src/crypto/aes-internal.o ../src/crypto/aes-internal-dec.o ../src/crypto/aes-internal-enc.o
endif
SHA256OBJS = ../src/crypto/sha256.o
endif
ifdef CONFIG_INTERNAL_AES
-AESOBJS += ../src/crypto/aes-internal.o
+AESOBJS += ../src/crypto/aes-internal.o ../src/crypto/aes-internal-enc.o
endif
ifdef CONFIG_INTERNAL_SHA1
SHA1OBJS += ../src/crypto/sha1-internal.o
--- /dev/null
+/*
+ * AES (Rijndael) cipher - encrypt
+ *
+ * Modifications to public domain implementation:
+ * - support only 128-bit keys
+ * - cleanup
+ * - use C pre-processor to make it easier to change S table access
+ * - added option (AES_SMALL_TABLES) for reducing code size by about 8 kB at
+ * cost of reduced throughput (quite small difference on Pentium 4,
+ * 10-25% when using -O1 or -O2 optimization)
+ *
+ * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "crypto.h"
+#include "aes_i.h"
+
+void rijndaelEncrypt(const u32 rk[/*44*/], const u8 pt[16], u8 ct[16])
+{
+ u32 s0, s1, s2, s3, t0, t1, t2, t3;
+ const int Nr = 10;
+#ifndef FULL_UNROLL
+ int r;
+#endif /* ?FULL_UNROLL */
+
+ /*
+ * map byte array block to cipher state
+ * and add initial round key:
+ */
+ s0 = GETU32(pt ) ^ rk[0];
+ s1 = GETU32(pt + 4) ^ rk[1];
+ s2 = GETU32(pt + 8) ^ rk[2];
+ s3 = GETU32(pt + 12) ^ rk[3];
+
+#define ROUND(i,d,s) \
+d##0 = TE0(s##0) ^ TE1(s##1) ^ TE2(s##2) ^ TE3(s##3) ^ rk[4 * i]; \
+d##1 = TE0(s##1) ^ TE1(s##2) ^ TE2(s##3) ^ TE3(s##0) ^ rk[4 * i + 1]; \
+d##2 = TE0(s##2) ^ TE1(s##3) ^ TE2(s##0) ^ TE3(s##1) ^ rk[4 * i + 2]; \
+d##3 = TE0(s##3) ^ TE1(s##0) ^ TE2(s##1) ^ TE3(s##2) ^ rk[4 * i + 3]
+
+#ifdef FULL_UNROLL
+
+ ROUND(1,t,s);
+ ROUND(2,s,t);
+ ROUND(3,t,s);
+ ROUND(4,s,t);
+ ROUND(5,t,s);
+ ROUND(6,s,t);
+ ROUND(7,t,s);
+ ROUND(8,s,t);
+ ROUND(9,t,s);
+
+ rk += Nr << 2;
+
+#else /* !FULL_UNROLL */
+
+ /* Nr - 1 full rounds: */
+ r = Nr >> 1;
+ for (;;) {
+ ROUND(1,t,s);
+ rk += 8;
+ if (--r == 0)
+ break;
+ ROUND(0,s,t);
+ }
+
+#endif /* ?FULL_UNROLL */
+
+#undef ROUND
+
+ /*
+ * apply last round and
+ * map cipher state to byte array block:
+ */
+ s0 = TE41(t0) ^ TE42(t1) ^ TE43(t2) ^ TE44(t3) ^ rk[0];
+ PUTU32(ct , s0);
+ s1 = TE41(t1) ^ TE42(t2) ^ TE43(t3) ^ TE44(t0) ^ rk[1];
+ PUTU32(ct + 4, s1);
+ s2 = TE41(t2) ^ TE42(t3) ^ TE43(t0) ^ TE44(t1) ^ rk[2];
+ PUTU32(ct + 8, s2);
+ s3 = TE41(t3) ^ TE42(t0) ^ TE43(t1) ^ TE44(t2) ^ rk[3];
+ PUTU32(ct + 12, s3);
+}
+
+
+void * aes_encrypt_init(const u8 *key, size_t len)
+{
+ u32 *rk;
+ if (len != 16)
+ return NULL;
+ rk = os_malloc(AES_PRIV_SIZE);
+ if (rk == NULL)
+ return NULL;
+ rijndaelKeySetupEnc(rk, key);
+ return rk;
+}
+
+
+void aes_encrypt(void *ctx, const u8 *plain, u8 *crypt)
+{
+ rijndaelEncrypt(ctx, plain, crypt);
+}
+
+
+void aes_encrypt_deinit(void *ctx)
+{
+ os_memset(ctx, 0, AES_PRIV_SIZE);
+ os_free(ctx);
+}
rk += 4;
}
}
-
-#ifndef CONFIG_NO_AES_ENCRYPT
-void rijndaelEncrypt(const u32 rk[/*44*/], const u8 pt[16], u8 ct[16])
-{
- u32 s0, s1, s2, s3, t0, t1, t2, t3;
- const int Nr = 10;
-#ifndef FULL_UNROLL
- int r;
-#endif /* ?FULL_UNROLL */
-
- /*
- * map byte array block to cipher state
- * and add initial round key:
- */
- s0 = GETU32(pt ) ^ rk[0];
- s1 = GETU32(pt + 4) ^ rk[1];
- s2 = GETU32(pt + 8) ^ rk[2];
- s3 = GETU32(pt + 12) ^ rk[3];
-
-#define ROUND(i,d,s) \
-d##0 = TE0(s##0) ^ TE1(s##1) ^ TE2(s##2) ^ TE3(s##3) ^ rk[4 * i]; \
-d##1 = TE0(s##1) ^ TE1(s##2) ^ TE2(s##3) ^ TE3(s##0) ^ rk[4 * i + 1]; \
-d##2 = TE0(s##2) ^ TE1(s##3) ^ TE2(s##0) ^ TE3(s##1) ^ rk[4 * i + 2]; \
-d##3 = TE0(s##3) ^ TE1(s##0) ^ TE2(s##1) ^ TE3(s##2) ^ rk[4 * i + 3]
-
-#ifdef FULL_UNROLL
-
- ROUND(1,t,s);
- ROUND(2,s,t);
- ROUND(3,t,s);
- ROUND(4,s,t);
- ROUND(5,t,s);
- ROUND(6,s,t);
- ROUND(7,t,s);
- ROUND(8,s,t);
- ROUND(9,t,s);
-
- rk += Nr << 2;
-
-#else /* !FULL_UNROLL */
-
- /* Nr - 1 full rounds: */
- r = Nr >> 1;
- for (;;) {
- ROUND(1,t,s);
- rk += 8;
- if (--r == 0)
- break;
- ROUND(0,s,t);
- }
-
-#endif /* ?FULL_UNROLL */
-
-#undef ROUND
-
- /*
- * apply last round and
- * map cipher state to byte array block:
- */
- s0 = TE41(t0) ^ TE42(t1) ^ TE43(t2) ^ TE44(t3) ^ rk[0];
- PUTU32(ct , s0);
- s1 = TE41(t1) ^ TE42(t2) ^ TE43(t3) ^ TE44(t0) ^ rk[1];
- PUTU32(ct + 4, s1);
- s2 = TE41(t2) ^ TE42(t3) ^ TE43(t0) ^ TE44(t1) ^ rk[2];
- PUTU32(ct + 8, s2);
- s3 = TE41(t3) ^ TE42(t0) ^ TE43(t1) ^ TE44(t2) ^ rk[3];
- PUTU32(ct + 12, s3);
-}
-
-void * aes_encrypt_init(const u8 *key, size_t len)
-{
- u32 *rk;
- if (len != 16)
- return NULL;
- rk = os_malloc(AES_PRIV_SIZE);
- if (rk == NULL)
- return NULL;
- rijndaelKeySetupEnc(rk, key);
- return rk;
-}
-
-
-void aes_encrypt(void *ctx, const u8 *plain, u8 *crypt)
-{
- rijndaelEncrypt(ctx, plain, crypt);
-}
-
-
-void aes_encrypt_deinit(void *ctx)
-{
- os_memset(ctx, 0, AES_PRIV_SIZE);
- os_free(ctx);
-}
-#endif /* CONFIG_NO_AES_ENCRYPT */
CFLAGS += -DCONFIG_NO_AES_WRAP
CFLAGS += -DCONFIG_NO_AES_CTR -DCONFIG_NO_AES_OMAC1
CFLAGS += -DCONFIG_NO_AES_EAX -DCONFIG_NO_AES_CBC
-CFLAGS += -DCONFIG_NO_AES_ENCRYPT
CFLAGS += -DCONFIG_NO_AES_ENCRYPT_BLOCK
+else
+ifdef CONFIG_INTERNAL_AES
+AESOBJS += ../src/crypto/aes-internal-enc.o
+endif
endif
ifdef NEED_AES
projects / libeap.git / commitdiff