Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/evp/e_rc4_hmac_md5.c

Index: openssl/crypto/evp/e_rc4_hmac_md5.c
diff --git a/openssl/crypto/evp/e_rc4_hmac_md5.c b/openssl/crypto/evp/e_rc4_hmac_md5.c
deleted file mode 100644
index 56563191ba161b2e875038fa94fc0da05422acc5..0000000000000000000000000000000000000000
--- a/openssl/crypto/evp/e_rc4_hmac_md5.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/* ====================================================================
- * Copyright (c) 2011 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
- *    licensing@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/opensslconf.h>
-
-#include <stdio.h>
-#include <string.h>
-
-#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_MD5)
-
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-#include <openssl/rc4.h>
-#include <openssl/md5.h>
-
-#ifndef EVP_CIPH_FLAG_AEAD_CIPHER
-#define EVP_CIPH_FLAG_AEAD_CIPHER	0x200000
-#define EVP_CTRL_AEAD_TLS1_AAD		0x16
-#define EVP_CTRL_AEAD_SET_MAC_KEY	0x17
-#endif
-
-/* FIXME: surely this is available elsewhere? */
-#define EVP_RC4_KEY_SIZE		16
-
-typedef struct
-    {
-    RC4_KEY		ks;
-    MD5_CTX		head,tail,md;
-    size_t		payload_length;
-    } EVP_RC4_HMAC_MD5;
-
-#define NO_PAYLOAD_LENGTH	((size_t)-1)
-
-void rc4_md5_enc (RC4_KEY *key, const void *in0, void *out,
-		MD5_CTX *ctx,const void *inp,size_t blocks);
-
-#define data(ctx) ((EVP_RC4_HMAC_MD5 *)(ctx)->cipher_data)
-
-static int rc4_hmac_md5_init_key(EVP_CIPHER_CTX *ctx,
-			const unsigned char *inkey,
-			const unsigned char *iv, int enc)
-	{
-	EVP_RC4_HMAC_MD5 *key = data(ctx);
-
-	RC4_set_key(&key->ks,EVP_CIPHER_CTX_key_length(ctx),
-		    inkey);
-
-	MD5_Init(&key->head);	/* handy when benchmarking */
-	key->tail = key->head;
-	key->md   = key->head;
-
-	key->payload_length = NO_PAYLOAD_LENGTH;
-
-	return 1;
-	}
-
-#if	!defined(OPENSSL_NO_ASM) &&	( \
-	defined(__x86_64)	|| defined(__x86_64__)	|| \
-	defined(_M_AMD64)	|| defined(_M_X64)	|| \
-	defined(__INTEL__)		) && \
-	!(defined(__APPLE__) && defined(__MACH__))
-#define	STITCHED_CALL
-#endif
-
-#if !defined(STITCHED_CALL)
-#define	rc4_off 0
-#define	md5_off 0
-#endif
-
-static int rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
-		      const unsigned char *in, size_t len)
-	{
-	EVP_RC4_HMAC_MD5 *key = data(ctx);
-#if defined(STITCHED_CALL)
-	size_t	rc4_off = 32-1-(key->ks.x&(32-1)),	/* 32 is $MOD from rc4_md5-x86_64.pl */
-		md5_off = MD5_CBLOCK-key->md.num,
-		blocks;
-	unsigned int l;
-	extern unsigned int OPENSSL_ia32cap_P[];
-#endif
-	size_t	plen = key->payload_length;
-
-	if (plen!=NO_PAYLOAD_LENGTH && len!=(plen+MD5_DIGEST_LENGTH)) return 0;
-
-	if (ctx->encrypt) {
-		if (plen==NO_PAYLOAD_LENGTH) plen = len;
-#if defined(STITCHED_CALL)
-		/* cipher has to "fall behind" */
-		if (rc4_off>md5_off) md5_off+=MD5_CBLOCK;
-
-		if (plen>md5_off && (blocks=(plen-md5_off)/MD5_CBLOCK) &&
-		    (OPENSSL_ia32cap_P[0]&(1<<20))==0) {
-			MD5_Update(&key->md,in,md5_off);
-			RC4(&key->ks,rc4_off,in,out);
-
-			rc4_md5_enc(&key->ks,in+rc4_off,out+rc4_off,
-				&key->md,in+md5_off,blocks);
-			blocks *= MD5_CBLOCK;
-			rc4_off += blocks;
-			md5_off += blocks;
-			key->md.Nh += blocks>>29;
-			key->md.Nl += blocks<<=3;
-			if (key->md.Nl<(unsigned int)blocks) key->md.Nh++;
-		} else {
-			rc4_off = 0;
-			md5_off = 0;
-		}
-#endif
-		MD5_Update(&key->md,in+md5_off,plen-md5_off);
-
-		if (plen!=len) {	/* "TLS" mode of operation */
-			if (in!=out)
-				memcpy(out+rc4_off,in+rc4_off,plen-rc4_off);
-
-			/* calculate HMAC and append it to payload */
-			MD5_Final(out+plen,&key->md);
-			key->md = key->tail;
-			MD5_Update(&key->md,out+plen,MD5_DIGEST_LENGTH);
-			MD5_Final(out+plen,&key->md);
-			/* encrypt HMAC at once */
-			RC4(&key->ks,len-rc4_off,out+rc4_off,out+rc4_off);
-		} else {
-			RC4(&key->ks,len-rc4_off,in+rc4_off,out+rc4_off);
-		}
-	} else {
-		unsigned char mac[MD5_DIGEST_LENGTH];
-#if defined(STITCHED_CALL)
-		/* digest has to "fall behind" */
-		if (md5_off>rc4_off)	rc4_off += 2*MD5_CBLOCK;
-		else			rc4_off += MD5_CBLOCK;
-
-		if (len>rc4_off && (blocks=(len-rc4_off)/MD5_CBLOCK) &&
-		    (OPENSSL_ia32cap_P[0]&(1<<20))==0) {
-			RC4(&key->ks,rc4_off,in,out);
-			MD5_Update(&key->md,out,md5_off);
-
-			rc4_md5_enc(&key->ks,in+rc4_off,out+rc4_off,
-				&key->md,out+md5_off,blocks);
-			blocks *= MD5_CBLOCK;
-			rc4_off += blocks;
-			md5_off += blocks;
-			l = (key->md.Nl+(blocks<<3))&0xffffffffU;
-			if (l<key->md.Nl) key->md.Nh++;
-			key->md.Nl  = l;
-			key->md.Nh += blocks>>29;
-		} else {
-			md5_off=0;
-			rc4_off=0;
-		}
-#endif
-		/* decrypt HMAC at once */
-		RC4(&key->ks,len-rc4_off,in+rc4_off,out+rc4_off);
-		if (plen!=NO_PAYLOAD_LENGTH) {	/* "TLS" mode of operation */
-			MD5_Update(&key->md,out+md5_off,plen-md5_off);
-
-			/* calculate HMAC and verify it */
-			MD5_Final(mac,&key->md);
-			key->md = key->tail;
-			MD5_Update(&key->md,mac,MD5_DIGEST_LENGTH);
-			MD5_Final(mac,&key->md);
-
-			if (memcmp(out+plen,mac,MD5_DIGEST_LENGTH))
-				return 0;
-		} else {
-			MD5_Update(&key->md,out+md5_off,len-md5_off);
-		}
-	}
-
-	key->payload_length = NO_PAYLOAD_LENGTH;
-
-	return 1;
-	}
-
-static int rc4_hmac_md5_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
-	{
-	EVP_RC4_HMAC_MD5 *key = data(ctx);
-
-	switch (type)
-		{
-	case EVP_CTRL_AEAD_SET_MAC_KEY:
-		{
-		unsigned int  i;
-		unsigned char hmac_key[64];
-
-		memset (hmac_key,0,sizeof(hmac_key));
-
-		if (arg > (int)sizeof(hmac_key)) {
-			MD5_Init(&key->head);
-			MD5_Update(&key->head,ptr,arg);
-			MD5_Final(hmac_key,&key->head);
-		} else {
-			memcpy(hmac_key,ptr,arg);
-		}
-
-		for (i=0;i<sizeof(hmac_key);i++)
-			hmac_key[i] ^= 0x36;		/* ipad */
-		MD5_Init(&key->head);
-		MD5_Update(&key->head,hmac_key,sizeof(hmac_key));
-
-		for (i=0;i<sizeof(hmac_key);i++)
-			hmac_key[i] ^= 0x36^0x5c;	/* opad */
-		MD5_Init(&key->tail);
-		MD5_Update(&key->tail,hmac_key,sizeof(hmac_key));
-
-		return 1;
-		}
-	case EVP_CTRL_AEAD_TLS1_AAD:
-		{
-		unsigned char *p=ptr;
-		unsigned int   len=p[arg-2]<<8|p[arg-1];
-
-		if (!ctx->encrypt)
-			{
-			len -= MD5_DIGEST_LENGTH;
-			p[arg-2] = len>>8;
-			p[arg-1] = len;
-			}
-		key->payload_length=len;
-		key->md = key->head;
-		MD5_Update(&key->md,p,arg);
-
-		return MD5_DIGEST_LENGTH;
-		}
-	default:
-		return -1;
-		}
-	}
-
-static EVP_CIPHER r4_hmac_md5_cipher=
-	{
-#ifdef NID_rc4_hmac_md5
-	NID_rc4_hmac_md5,
-#else
-	NID_undef,
-#endif
-	1,EVP_RC4_KEY_SIZE,0,
-	EVP_CIPH_STREAM_CIPHER|EVP_CIPH_VARIABLE_LENGTH|EVP_CIPH_FLAG_AEAD_CIPHER,
-	rc4_hmac_md5_init_key,
-	rc4_hmac_md5_cipher,
-	NULL,
-	sizeof(EVP_RC4_HMAC_MD5),
-	NULL,
-	NULL,
-	rc4_hmac_md5_ctrl,
-	NULL
-	};
-
-const EVP_CIPHER *EVP_rc4_hmac_md5(void)
-	{
-	return(&r4_hmac_md5_cipher);
-	}
-#endif