Consolidate most of the AES modes into a single C file.

Discussed with tb@

6 files changed, 70 insertions, 293 deletions

diff --git a/lib/libcrypto/Makefile b/lib/libcrypto/Makefile
index 86d8cbcad6e..63600aa9233 100644
--- a/lib/libcrypto/Makefile
+++ b/lib/libcrypto/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.179 2024/03/27 12:56:25 jsing Exp $
+# $OpenBSD: Makefile,v 1.180 2024/03/28 00:57:26 jsing Exp $
 
 LIB=	crypto
 LIBREBUILD=y
@@ -72,12 +72,8 @@ SRCS+= o_fips.c
 SRCS+= o_str.c
 
 # aes/
-SRCS+= aes_cfb.c
-SRCS+= aes_ctr.c
-SRCS+= aes_ecb.c
+SRCS+= aes.c
 SRCS+= aes_ige.c
-SRCS+= aes_ofb.c
-SRCS+= aes_wrap.c
 
 # asn1/
 SRCS+= a_bitstr.c
diff --git a/lib/libcrypto/aes/aes_wrap.c b/lib/libcrypto/aes/aes.c
index b30630fe479..d3bf85947d7 100644
--- a/lib/libcrypto/aes/aes_wrap.c
+++ b/lib/libcrypto/aes/aes.c
@@ -1,9 +1,6 @@
-/* $OpenBSD: aes_wrap.c,v 1.12 2018/11/07 18:31:16 tb Exp $ */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project.
- */
+/* $OpenBSD: aes.c,v 1.1 2024/03/28 00:57:26 jsing Exp $ */
 /* ====================================================================
- * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 2002-2006 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -20,12 +17,12 @@
  * 3. All advertising materials mentioning features or use of this
  *    software must display the following acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  *
  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  *    endorse or promote products derived from this software without
  *    prior written permission. For written permission, please contact
- *    licensing@OpenSSL.org.
+ *    openssl-core@openssl.org.
  *
  * 5. Products derived from this software may not be called "OpenSSL"
  *    nor may "OpenSSL" appear in their names without prior written
@@ -34,7 +31,7 @@
  * 6. Redistributions of any form whatsoever must retain the following
  *    acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  *
  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
@@ -49,17 +46,77 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  * ====================================================================
+ *
  */
 
 #include <string.h>
 
 #include <openssl/aes.h>
 #include <openssl/bio.h>
+#include <openssl/modes.h>
 
-static const unsigned char default_iv[] = {
+static const unsigned char aes_wrap_default_iv[] = {
 	0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6,
 };
 
+/*
+ * The input and output encrypted as though 128bit cfb mode is being
+ * used.  The extra state information to record how much of the
+ * 128bit block we have used is contained in *num;
+ */
+
+void
+AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, size_t length,
+    const AES_KEY *key, unsigned char *ivec, int *num, const int enc)
+{
+	CRYPTO_cfb128_encrypt(in, out, length, key, ivec, num, enc,
+	    (block128_f)AES_encrypt);
+}
+
+/* N.B. This expects the input to be packed, MS bit first */
+void
+AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, size_t length,
+    const AES_KEY *key, unsigned char *ivec, int *num, const int enc)
+{
+	CRYPTO_cfb128_1_encrypt(in, out, length, key, ivec, num, enc,
+	    (block128_f)AES_encrypt);
+}
+
+void
+AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, size_t length,
+    const AES_KEY *key, unsigned char *ivec, int *num, const int enc)
+{
+	CRYPTO_cfb128_8_encrypt(in, out, length, key, ivec, num, enc,
+	    (block128_f)AES_encrypt);
+}
+
+void
+AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
+    size_t length, const AES_KEY *key, unsigned char ivec[AES_BLOCK_SIZE],
+    unsigned char ecount_buf[AES_BLOCK_SIZE], unsigned int *num)
+{
+	CRYPTO_ctr128_encrypt(in, out, length, key, ivec, ecount_buf, num,
+	    (block128_f)AES_encrypt);
+}
+
+void
+AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
+    const AES_KEY *key, const int enc)
+{
+	if (AES_ENCRYPT == enc)
+		AES_encrypt(in, out, key);
+	else
+		AES_decrypt(in, out, key);
+}
+
+void
+AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, size_t length,
+    const AES_KEY *key, unsigned char *ivec, int *num)
+{
+	CRYPTO_ofb128_encrypt(in, out, length, key, ivec, num,
+	    (block128_f)AES_encrypt);
+}
+
 int
 AES_wrap_key(AES_KEY *key, const unsigned char *iv, unsigned char *out,
     const unsigned char *in, unsigned int inlen)
@@ -73,7 +130,7 @@ AES_wrap_key(AES_KEY *key, const unsigned char *iv, unsigned char *out,
 	t = 1;
 	memmove(out + 8, in, inlen);
 	if (!iv)
-		iv = default_iv;
+		iv = aes_wrap_default_iv;
 
 	memcpy(A, iv, 8);
 
@@ -124,7 +181,7 @@ AES_unwrap_key(AES_KEY *key, const unsigned char *iv, unsigned char *out,
 		}
 	}
 	if (!iv)
-		iv = default_iv;
+		iv = aes_wrap_default_iv;
 	if (memcmp(A, iv, 8)) {
 		explicit_bzero(out, inlen);
 		return 0;
diff --git a/lib/libcrypto/aes/aes_cfb.c b/lib/libcrypto/aes/aes_cfb.c
deleted file mode 100644
index a6384f944df..00000000000
--- a/lib/libcrypto/aes/aes_cfb.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/* $OpenBSD: aes_cfb.c,v 1.8 2014/06/12 15:49:27 deraadt Exp $ */
-/* ====================================================================
- * Copyright (c) 2002-2006 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- */
-
-#include <openssl/aes.h>
-#include <openssl/modes.h>
-
-/* The input and output encrypted as though 128bit cfb mode is being
- * used.  The extra state information to record how much of the
- * 128bit block we have used is contained in *num;
- */
-
-void
-AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, size_t length,
-    const AES_KEY *key, unsigned char *ivec, int *num, const int enc)
-{
-	CRYPTO_cfb128_encrypt(in, out, length, key, ivec, num, enc,
-	    (block128_f)AES_encrypt);
-}
-
-/* N.B. This expects the input to be packed, MS bit first */
-void
-AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, size_t length,
-    const AES_KEY *key, unsigned char *ivec, int *num, const int enc)
-{
-	CRYPTO_cfb128_1_encrypt(in, out, length, key, ivec, num, enc,
-	    (block128_f)AES_encrypt);
-}
-
-void
-AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, size_t length,
-    const AES_KEY *key, unsigned char *ivec, int *num, const int enc)
-{
-	CRYPTO_cfb128_8_encrypt(in, out, length, key, ivec, num, enc,
-	    (block128_f)AES_encrypt);
-}
-
diff --git a/lib/libcrypto/aes/aes_ctr.c b/lib/libcrypto/aes/aes_ctr.c
deleted file mode 100644
index 607914599bd..00000000000
--- a/lib/libcrypto/aes/aes_ctr.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* $OpenBSD: aes_ctr.c,v 1.9 2014/06/12 15:49:27 deraadt Exp $ */
-/* ====================================================================
- * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- */
-
-#include <openssl/aes.h>
-#include <openssl/modes.h>
-
-void
-AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
-    size_t length, const AES_KEY *key, unsigned char ivec[AES_BLOCK_SIZE],
-    unsigned char ecount_buf[AES_BLOCK_SIZE], unsigned int *num)
-{
-	CRYPTO_ctr128_encrypt(in, out, length, key, ivec, ecount_buf, num,
-	    (block128_f)AES_encrypt);
-}
diff --git a/lib/libcrypto/aes/aes_ecb.c b/lib/libcrypto/aes/aes_ecb.c
deleted file mode 100644
index e3bb40b5aa3..00000000000
--- a/lib/libcrypto/aes/aes_ecb.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/* $OpenBSD: aes_ecb.c,v 1.7 2022/11/26 16:08:50 tb Exp $ */
-/* ====================================================================
- * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- */
-
-#ifndef AES_DEBUG
-# ifndef NDEBUG
-#  define NDEBUG
-# endif
-#endif
-
-#include <openssl/aes.h>
-#include "aes_local.h"
-
-void
-AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
-    const AES_KEY *key, const int enc)
-{
-	if (AES_ENCRYPT == enc)
-		AES_encrypt(in, out, key);
-	else
-		AES_decrypt(in, out, key);
-}
diff --git a/lib/libcrypto/aes/aes_ofb.c b/lib/libcrypto/aes/aes_ofb.c
deleted file mode 100644
index f8dc03a26e8..00000000000
--- a/lib/libcrypto/aes/aes_ofb.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/* $OpenBSD: aes_ofb.c,v 1.6 2014/06/12 15:49:27 deraadt Exp $ */
-/* ====================================================================
- * Copyright (c) 2002-2006 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- */
-
-#include <openssl/aes.h>
-#include <openssl/modes.h>
-
-void
-AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, size_t length,
-    const AES_KEY *key, unsigned char *ivec, int *num)
-{
-	CRYPTO_ofb128_encrypt(in, out, length, key, ivec, num,
-	    (block128_f)AES_encrypt);
-}