renamed crypto -> ext

1 files changed, 194 insertions, 0 deletions

diff --git a/ext/libressl/crypto/aes/aes_ige.c b/ext/libressl/crypto/aes/aes_ige.c
new file mode 100644
index 0000000..85b7f69
--- /dev/null
+++ b/ext/libressl/crypto/aes/aes_ige.c
@@ -0,0 +1,194 @@
+/* $OpenBSD: aes_ige.c,v 1.7 2015/02/10 09:46:30 miod Exp $ */
+/* ====================================================================
+ * Copyright (c) 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/crypto.h>
+
+#include "aes_locl.h"
+
+#define N_WORDS (AES_BLOCK_SIZE / sizeof(unsigned long))
+typedef struct {
+	unsigned long data[N_WORDS];
+} aes_block_t;
+
+/* XXX: probably some better way to do this */
+#if defined(__i386__) || defined(__x86_64__)
+#define UNALIGNED_MEMOPS_ARE_FAST 1
+#else
+#define UNALIGNED_MEMOPS_ARE_FAST 0
+#endif
+
+#if UNALIGNED_MEMOPS_ARE_FAST
+#define load_block(d, s)        (d) = *(const aes_block_t *)(s)
+#define store_block(d, s)       *(aes_block_t *)(d) = (s)
+#else
+#define load_block(d, s)        memcpy((d).data, (s), AES_BLOCK_SIZE)
+#define store_block(d, s)       memcpy((d), (s).data, AES_BLOCK_SIZE)
+#endif
+
+/* N.B. The IV for this mode is _twice_ the block size */
+
+void
+AES_ige_encrypt(const unsigned char *in, unsigned char *out, size_t length,
+    const AES_KEY *key, unsigned char *ivec, const int enc)
+{
+	size_t n;
+	size_t len;
+
+	OPENSSL_assert((length % AES_BLOCK_SIZE) == 0);
+
+	len = length / AES_BLOCK_SIZE;
+
+	if (AES_ENCRYPT == enc) {
+		if (in != out && (UNALIGNED_MEMOPS_ARE_FAST ||
+		    ((size_t)in|(size_t)out|(size_t)ivec) %
+		    sizeof(long) == 0)) {
+			aes_block_t *ivp = (aes_block_t *)ivec;
+			aes_block_t *iv2p = (aes_block_t *)(ivec + AES_BLOCK_SIZE);
+
+			while (len) {
+				aes_block_t *inp = (aes_block_t *)in;
+				aes_block_t *outp = (aes_block_t *)out;
+
+				for (n = 0; n < N_WORDS; ++n)
+					outp->data[n] = inp->data[n] ^ ivp->data[n];
+				AES_encrypt((unsigned char *)outp->data, (unsigned char *)outp->data, key);
+				for (n = 0; n < N_WORDS; ++n)
+					outp->data[n] ^= iv2p->data[n];
+				ivp = outp;
+				iv2p = inp;
+				--len;
+				in += AES_BLOCK_SIZE;
+				out += AES_BLOCK_SIZE;
+			}
+			memcpy(ivec, ivp->data, AES_BLOCK_SIZE);
+			memcpy(ivec + AES_BLOCK_SIZE, iv2p->data, AES_BLOCK_SIZE);
+		} else {
+			aes_block_t tmp, tmp2;
+			aes_block_t iv;
+			aes_block_t iv2;
+
+			load_block(iv, ivec);
+			load_block(iv2, ivec + AES_BLOCK_SIZE);
+
+			while (len) {
+				load_block(tmp, in);
+				for (n = 0; n < N_WORDS; ++n)
+					tmp2.data[n] = tmp.data[n] ^ iv.data[n];
+				AES_encrypt((unsigned char *)tmp2.data,
+				    (unsigned char *)tmp2.data, key);
+				for (n = 0; n < N_WORDS; ++n)
+					tmp2.data[n] ^= iv2.data[n];
+				store_block(out, tmp2);
+				iv = tmp2;
+				iv2 = tmp;
+				--len;
+				in += AES_BLOCK_SIZE;
+				out += AES_BLOCK_SIZE;
+			}
+			memcpy(ivec, iv.data, AES_BLOCK_SIZE);
+			memcpy(ivec + AES_BLOCK_SIZE, iv2.data, AES_BLOCK_SIZE);
+		}
+	} else {
+		if (in != out && (UNALIGNED_MEMOPS_ARE_FAST ||
+		    ((size_t)in|(size_t)out|(size_t)ivec) %
+		    sizeof(long) == 0)) {
+			aes_block_t *ivp = (aes_block_t *)ivec;
+			aes_block_t *iv2p = (aes_block_t *)(ivec + AES_BLOCK_SIZE);
+
+			while (len) {
+				aes_block_t tmp;
+				aes_block_t *inp = (aes_block_t *)in;
+				aes_block_t *outp = (aes_block_t *)out;
+
+				for (n = 0; n < N_WORDS; ++n)
+					tmp.data[n] = inp->data[n] ^ iv2p->data[n];
+				AES_decrypt((unsigned char *)tmp.data,
+				    (unsigned char *)outp->data, key);
+				for (n = 0; n < N_WORDS; ++n)
+					outp->data[n] ^= ivp->data[n];
+				ivp = inp;
+				iv2p = outp;
+				--len;
+				in += AES_BLOCK_SIZE;
+				out += AES_BLOCK_SIZE;
+			}
+			memcpy(ivec, ivp->data, AES_BLOCK_SIZE);
+			memcpy(ivec + AES_BLOCK_SIZE, iv2p->data, AES_BLOCK_SIZE);
+		} else {
+			aes_block_t tmp, tmp2;
+			aes_block_t iv;
+			aes_block_t iv2;
+
+			load_block(iv, ivec);
+			load_block(iv2, ivec + AES_BLOCK_SIZE);
+
+			while (len) {
+				load_block(tmp, in);
+				tmp2 = tmp;
+				for (n = 0; n < N_WORDS; ++n)
+					tmp.data[n] ^= iv2.data[n];
+				AES_decrypt((unsigned char *)tmp.data,
+				    (unsigned char *)tmp.data, key);
+				for (n = 0; n < N_WORDS; ++n)
+					tmp.data[n] ^= iv.data[n];
+				store_block(out, tmp);
+				iv = tmp2;
+				iv2 = tmp;
+				--len;
+				in += AES_BLOCK_SIZE;
+				out += AES_BLOCK_SIZE;
+			}
+			memcpy(ivec, iv.data, AES_BLOCK_SIZE);
+			memcpy(ivec + AES_BLOCK_SIZE, iv2.data, AES_BLOCK_SIZE);
+		}
+	}
+}