Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.

6 files changed, 740 insertions, 2 deletions

diff --git a/crypto/evp/Makefile b/crypto/evp/Makefile
index ee350a95a0..6b2dac1e37 100644
--- a/crypto/evp/Makefile
+++ b/crypto/evp/Makefile
@@ -28,7 +28,8 @@ LIBSRC= encode.c digest.c evp_enc.c evp_key.c evp_acnf.c \
 	bio_md.c bio_b64.c bio_enc.c evp_err.c e_null.c \
 	c_all.c c_allc.c c_alld.c evp_lib.c bio_ok.c \
 	evp_pkey.c evp_pbe.c p5_crpt.c p5_crpt2.c \
-	e_old.c pmeth_lib.c pmeth_fn.c pmeth_gn.c m_sigver.c
+	e_old.c pmeth_lib.c pmeth_fn.c pmeth_gn.c m_sigver.c \
+	e_aes_cbc_hmac_sha1.c e_rc4_hmac_md5.c
 
 LIBOBJ=	encode.o digest.o evp_enc.o evp_key.o evp_acnf.o \
 	e_des.o e_bf.o e_idea.o e_des3.o e_camellia.o\
@@ -40,7 +41,8 @@ LIBOBJ=	encode.o digest.o evp_enc.o evp_key.o evp_acnf.o \
 	bio_md.o bio_b64.o bio_enc.o evp_err.o e_null.o \
 	c_all.o c_allc.o c_alld.o evp_lib.o bio_ok.o \
 	evp_pkey.o evp_pbe.o p5_crpt.o p5_crpt2.o \
-	e_old.o pmeth_lib.o pmeth_fn.o pmeth_gn.o m_sigver.o
+	e_old.o pmeth_lib.o pmeth_fn.o pmeth_gn.o m_sigver.o \
+	e_aes_cbc_hmac_sha1.o e_rc4_hmac_md5.o
 
 SRC= $(LIBSRC)
 
@@ -195,6 +197,20 @@ e_aes.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
 e_aes.o: ../../include/openssl/rand.h ../../include/openssl/safestack.h
 e_aes.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
 e_aes.o: ../modes/modes_lcl.h e_aes.c evp_locl.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/aes.h ../../include/openssl/asn1.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/bio.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/crypto.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/e_os2.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/evp.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/obj_mac.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/objects.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/opensslconf.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/opensslv.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/ossl_typ.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/safestack.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/sha.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/stack.h
+e_aes_cbc_hmac_sha1.o: ../../include/openssl/symhacks.h e_aes_cbc_hmac_sha1.c
 e_bf.o: ../../e_os.h ../../include/openssl/asn1.h ../../include/openssl/bio.h
 e_bf.o: ../../include/openssl/blowfish.h ../../include/openssl/buffer.h
 e_bf.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
@@ -281,6 +297,17 @@ e_rc4.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
 e_rc4.o: ../../include/openssl/ossl_typ.h ../../include/openssl/rc4.h
 e_rc4.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
 e_rc4.o: ../../include/openssl/symhacks.h ../cryptlib.h e_rc4.c
+e_rc4_hmac_md5.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
+e_rc4_hmac_md5.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
+e_rc4_hmac_md5.o: ../../include/openssl/evp.h ../../include/openssl/md5.h
+e_rc4_hmac_md5.o: ../../include/openssl/obj_mac.h
+e_rc4_hmac_md5.o: ../../include/openssl/objects.h
+e_rc4_hmac_md5.o: ../../include/openssl/opensslconf.h
+e_rc4_hmac_md5.o: ../../include/openssl/opensslv.h
+e_rc4_hmac_md5.o: ../../include/openssl/ossl_typ.h ../../include/openssl/rc4.h
+e_rc4_hmac_md5.o: ../../include/openssl/safestack.h
+e_rc4_hmac_md5.o: ../../include/openssl/stack.h
+e_rc4_hmac_md5.o: ../../include/openssl/symhacks.h e_rc4_hmac_md5.c
 e_rc5.o: ../../e_os.h ../../include/openssl/bio.h
 e_rc5.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
 e_rc5.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
diff --git a/crypto/evp/c_allc.c b/crypto/evp/c_allc.c
index 395a164c8f..8765cfbf92 100644
--- a/crypto/evp/c_allc.c
+++ b/crypto/evp/c_allc.c
@@ -98,6 +98,9 @@ void OpenSSL_add_all_ciphers(void)
 #ifndef OPENSSL_NO_RC4
 	EVP_add_cipher(EVP_rc4());
 	EVP_add_cipher(EVP_rc4_40());
+#ifndef OPENSSL_NO_MD5
+	EVP_add_cipher(EVP_rc4_hmac_md5());
+#endif
 #endif
 
 #ifndef OPENSSL_NO_IDEA
@@ -190,6 +193,10 @@ void OpenSSL_add_all_ciphers(void)
 	EVP_add_cipher(EVP_aes_256_gcm());
 	EVP_add_cipher_alias(SN_aes_256_cbc,"AES256");
 	EVP_add_cipher_alias(SN_aes_256_cbc,"aes256");
+#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
+	EVP_add_cipher(EVP_aes_128_cbc_hmac_sha1());
+	EVP_add_cipher(EVP_aes_256_cbc_hmac_sha1());
+#endif
 #endif
 
 #ifndef OPENSSL_NO_CAMELLIA
diff --git a/crypto/evp/e_aes_cbc_hmac_sha1.c b/crypto/evp/e_aes_cbc_hmac_sha1.c
new file mode 100644
index 0000000000..78a0135470
--- /dev/null
+++ b/crypto/evp/e_aes_cbc_hmac_sha1.c
@@ -0,0 +1,403 @@
+/* ====================================================================
+ * 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_AES) && !defined(OPENSSL_NO_SHA1)
+
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/aes.h>
+#include <openssl/sha.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
+
+#if !defined(EVP_CIPH_FLAG_DEFAULT_ASN1)
+#define EVP_CIPH_FLAG_DEFAULT_ASN1 0
+#endif
+
+#define TLS1_1_VERSION 0x0302
+
+typedef struct
+    {
+    AES_KEY		ks;
+    SHA_CTX		head,tail,md;
+    size_t		payload_length;	/* AAD length in decrypt case */
+    union {
+	unsigned int	tls_ver;
+    	unsigned char	tls_aad[16];	/* 13 used */
+    } aux;
+    } EVP_AES_HMAC_SHA1;
+
+#if	defined(AES_ASM) &&	( \
+	defined(__x86_64)	|| defined(__x86_64__)	|| \
+	defined(_M_AMD64)	|| defined(_M_X64)	|| \
+	defined(__INTEL__)	)
+
+extern unsigned int OPENSSL_ia32cap_P[2];
+#define AESNI_CAPABLE   (1<<(57-32))
+
+int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
+			      AES_KEY *key);
+int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
+			      AES_KEY *key);
+
+void aesni_cbc_encrypt(const unsigned char *in,
+			   unsigned char *out,
+			   size_t length,
+			   const AES_KEY *key,
+			   unsigned char *ivec, int enc);
+
+void aesni_cbc_sha1_enc (const void *inp, void *out, size_t blocks,
+		const AES_KEY *key, unsigned char iv[16],
+		SHA_CTX *ctx,const void *in0);
+
+#define data(ctx) ((EVP_AES_HMAC_SHA1 *)(ctx)->cipher_data)
+
+static int aesni_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
+			const unsigned char *inkey,
+			const unsigned char *iv, int enc)
+	{
+	EVP_AES_HMAC_SHA1 *key = data(ctx);
+	int ret;
+
+	if (enc)
+		ret=aesni_set_encrypt_key(inkey,ctx->key_len*8,&key->ks);
+	else
+		ret=aesni_set_decrypt_key(inkey,ctx->key_len*8,&key->ks);
+
+	SHA1_Init(&key->head);	/* handy when benchmarking */
+	key->tail = key->head;
+	key->md   = key->head;
+
+	key->payload_length = 0;
+
+	return ret<0?0:1;
+	}
+
+#define	STITCHED_CALL
+
+#if !defined(STITCHED_CALL)
+#define	aes_off 0
+#endif
+
+void sha1_block_data_order (void *c,const void *p,size_t len);
+
+static void sha1_update(SHA_CTX *c,const void *data,size_t len)
+{	const unsigned char *ptr = data;
+	size_t res;
+
+	if ((res = c->num)) {
+		res = SHA_CBLOCK-res;
+		if (len<res) res=len;
+		SHA1_Update (c,ptr,res);
+		ptr += res;
+		len -= res;
+	}
+
+	res = len % SHA_CBLOCK;
+	len -= res;
+
+	if (len) {
+		sha1_block_data_order(c,ptr,len/SHA_CBLOCK);
+
+		ptr += len;
+		c->Nh += len>>29;
+		c->Nl += len<<=3;
+		if (c->Nl<(unsigned int)len) c->Nh++;
+	}
+
+	if (res)
+		SHA1_Update(c,ptr,res);
+}
+
+#define SHA1_Update sha1_update
+
+static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+		      const unsigned char *in, size_t len)
+	{
+	EVP_AES_HMAC_SHA1 *key = data(ctx);
+	unsigned int l;
+	size_t	plen = key->payload_length,
+		iv = 0,		/* explicit IV in TLS 1.1 and later */
+		sha_off = 0;
+#if defined(STITCHED_CALL)
+	size_t	aes_off = 0,
+		blocks;
+
+	sha_off = SHA_CBLOCK-key->md.num;
+#endif
+
+	if (len%AES_BLOCK_SIZE) return 0;
+
+	if (ctx->encrypt) {
+		if (plen==0)
+			plen = len;
+		else if (len!=((plen+SHA_DIGEST_LENGTH+AES_BLOCK_SIZE)&-AES_BLOCK_SIZE))
+			return 0;
+		else if (key->aux.tls_ver >= TLS1_1_VERSION)
+			iv = AES_BLOCK_SIZE;
+
+#if defined(STITCHED_CALL)
+		if (plen>(sha_off+iv) && (blocks=(plen-(sha_off+iv))/SHA_CBLOCK)) {
+			SHA1_Update(&key->md,in+iv,sha_off);
+
+			aesni_cbc_sha1_enc(in,out,blocks,&key->ks,
+				ctx->iv,&key->md,in+iv+sha_off);
+			blocks *= SHA_CBLOCK;
+			aes_off += blocks;
+			sha_off += blocks;
+			key->md.Nh += blocks>>29;
+			key->md.Nl += blocks<<=3;
+			if (key->md.Nl<(unsigned int)blocks) key->md.Nh++;
+		} else {
+			sha_off = 0;
+		}
+#endif
+		sha_off += iv;
+		SHA1_Update(&key->md,in+sha_off,plen-sha_off);
+
+		if (plen!=len)	{	/* "TLS" mode of operation */
+			if (in!=out)
+				memcpy(out+aes_off,in+aes_off,plen-aes_off);
+
+			/* calculate HMAC and append it to payload */
+			SHA1_Final(out+plen,&key->md);
+			key->md = key->tail;
+			SHA1_Update(&key->md,out+plen,SHA_DIGEST_LENGTH);
+			SHA1_Final(out+plen,&key->md);
+
+			/* pad the payload|hmac */
+			plen += SHA_DIGEST_LENGTH;
+			for (l=len-plen-1;plen<len;plen++) out[plen]=l;
+			/* encrypt HMAC|padding at once */
+			aesni_cbc_encrypt(out+aes_off,out+aes_off,len-aes_off,
+					&key->ks,ctx->iv,1);
+		} else {
+			aesni_cbc_encrypt(in+aes_off,out+aes_off,len-aes_off,
+					&key->ks,ctx->iv,1);
+		}
+	} else {
+		unsigned char mac[SHA_DIGEST_LENGTH];
+
+		/* decrypt HMAC|padding at once */
+		aesni_cbc_encrypt(in,out,len,
+				&key->ks,ctx->iv,0);
+
+		if (plen) {	/* "TLS" mode of operation */
+			/* figure out payload length */
+			if (len<(out[len-1]+1+SHA_DIGEST_LENGTH))
+				return 0;
+
+			len -= (out[len-1]+1+SHA_DIGEST_LENGTH);
+
+			if ((key->aux.tls_aad[plen-4]<<8|key->aux.tls_aad[plen-3])
+			    >= TLS1_1_VERSION) {
+				len -= AES_BLOCK_SIZE;
+				iv = AES_BLOCK_SIZE;
+			}
+
+			key->aux.tls_aad[plen-2] = len>>8;
+			key->aux.tls_aad[plen-1] = len;
+
+			/* calculate HMAC and verify it */
+			key->md = key->head;
+			SHA1_Update(&key->md,key->aux.tls_aad,plen);
+			SHA1_Update(&key->md,out+iv,len);
+			SHA1_Final(mac,&key->md);
+
+			key->md = key->tail;
+			SHA1_Update(&key->md,mac,SHA_DIGEST_LENGTH);
+			SHA1_Final(mac,&key->md);
+
+			if (memcmp(out+iv+len,mac,SHA_DIGEST_LENGTH))
+				return 0;
+		} else {
+			SHA1_Update(&key->md,out,len);
+		}
+	}
+
+	key->payload_length = 0;
+
+	return 1;
+	}
+
+static int aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
+	{
+	EVP_AES_HMAC_SHA1 *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 > sizeof(hmac_key)) {
+			SHA1_Init(&key->head);
+			SHA1_Update(&key->head,ptr,arg);
+			SHA1_Final(hmac_key,&key->head);
+		} else {
+			memcpy(hmac_key,ptr,arg);
+		}
+
+		for (i=0;i<sizeof(hmac_key);i++)
+			hmac_key[i] ^= 0x36;		/* ipad */
+		SHA1_Init(&key->head);
+		SHA1_Update(&key->head,hmac_key,sizeof(hmac_key));
+
+		for (i=0;i<sizeof(hmac_key);i++)
+			hmac_key[i] ^= 0x36^0x5c;	/* opad */
+		SHA1_Init(&key->tail);
+		SHA1_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)
+			{
+			key->payload_length = len;
+			if ((key->aux.tls_ver=p[arg-4]<<8|p[arg-3]) >= TLS1_1_VERSION) {
+				len -= AES_BLOCK_SIZE;
+				p[arg-2] = len>>8;
+				p[arg-1] = len;
+			}
+			key->md = key->head;
+			SHA1_Update(&key->md,p,arg);
+
+			return (int)(((len+SHA_DIGEST_LENGTH+AES_BLOCK_SIZE)&-AES_BLOCK_SIZE)
+				- len);
+			}
+		else
+			{
+			if (arg>13) arg = 13;
+			memcpy(key->aux.tls_aad,ptr,arg);
+			key->payload_length = arg;
+
+			return SHA_DIGEST_LENGTH;
+			}
+		}
+	default:
+		return -1;
+		}
+	}
+
+static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher =
+	{
+#ifdef NID_aes_128_cbc_hmac_sha1
+	NID_aes_128_cbc_hmac_sha1,
+#else
+	NID_undef,
+#endif
+	16,16,16,
+	EVP_CIPH_CBC_MODE|EVP_CIPH_FLAG_DEFAULT_ASN1|EVP_CIPH_FLAG_AEAD_CIPHER,
+	aesni_cbc_hmac_sha1_init_key,
+	aesni_cbc_hmac_sha1_cipher,
+	NULL,
+	sizeof(EVP_AES_HMAC_SHA1),
+	EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_set_asn1_iv,
+	EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_get_asn1_iv,
+	aesni_cbc_hmac_sha1_ctrl,
+	NULL
+	};
+
+static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher =
+	{
+#ifdef NID_aes_256_cbc_hmac_sha1
+	NID_aes_256_cbc_hmac_sha1,
+#else
+	NID_undef,
+#endif
+	16,32,16,
+	EVP_CIPH_CBC_MODE|EVP_CIPH_FLAG_DEFAULT_ASN1|EVP_CIPH_FLAG_AEAD_CIPHER,
+	aesni_cbc_hmac_sha1_init_key,
+	aesni_cbc_hmac_sha1_cipher,
+	NULL,
+	sizeof(EVP_AES_HMAC_SHA1),
+	EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_set_asn1_iv,
+	EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_get_asn1_iv,
+	aesni_cbc_hmac_sha1_ctrl,
+	NULL
+	};
+
+const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void)
+	{
+	return(OPENSSL_ia32cap_P[1]&AESNI_CAPABLE?
+		&aesni_128_cbc_hmac_sha1_cipher:NULL);
+	}
+
+const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void)
+	{
+	return(OPENSSL_ia32cap_P[1]&AESNI_CAPABLE?
+		&aesni_256_cbc_hmac_sha1_cipher:NULL);
+	}
+#else
+const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void)
+	{
+	return NULL;
+	}
+const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void)
+	{
+	return NULL;
+	}
+#endif
+#endif
diff --git a/crypto/evp/e_rc4_hmac_md5.c b/crypto/evp/e_rc4_hmac_md5.c
new file mode 100644
index 0000000000..1fa2aa2b84
--- /dev/null
+++ b/crypto/evp/e_rc4_hmac_md5.c
@@ -0,0 +1,292 @@
+/* ====================================================================
+ * 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;
+
+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 = 0;
+
+	return 1;
+	}
+
+#if	!defined(OPENSSL_NO_ASM) &&	( \
+	defined(__x86_64)	|| defined(__x86_64__)	|| \
+	defined(_M_AMD64)	|| defined(_M_X64)	|| \
+	defined(__INTEL__)		)
+#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;
+#endif
+	size_t	plen = key->payload_length;
+
+	if (plen && len!=(plen+MD5_DIGEST_LENGTH)) return 0;
+
+	if (ctx->encrypt) {
+		if (plen==0) 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)) {
+			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)) {
+			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) {	/* "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 = 0;
+
+	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 > 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
diff --git a/crypto/evp/evp.h b/crypto/evp/evp.h
index d6cf616356..82e762f82d 100644
--- a/crypto/evp/evp.h
+++ b/crypto/evp/evp.h
@@ -766,6 +766,9 @@ const EVP_MD *EVP_dev_crypto_md5(void);
 #ifndef OPENSSL_NO_RC4
 const EVP_CIPHER *EVP_rc4(void);
 const EVP_CIPHER *EVP_rc4_40(void);
+#ifndef OPENSSL_NO_MD5
+const EVP_CIPHER *EVP_rc4_hmac_md5(void);
+#endif
 #endif
 #ifndef OPENSSL_NO_IDEA
 const EVP_CIPHER *EVP_idea_ecb(void);
@@ -837,6 +840,10 @@ const EVP_CIPHER *EVP_aes_256_ctr(void);
 const EVP_CIPHER *EVP_aes_256_ccm(void);
 const EVP_CIPHER *EVP_aes_256_gcm(void);
 const EVP_CIPHER *EVP_aes_256_xts(void);
+#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
+const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void);
+const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void);
+#endif
 #endif
 #ifndef OPENSSL_NO_CAMELLIA
 const EVP_CIPHER *EVP_camellia_128_ecb(void);
diff --git a/crypto/evp/names.c b/crypto/evp/names.c
index f2869f5c78..33dea162dc 100644
--- a/crypto/evp/names.c
+++ b/crypto/evp/names.c
@@ -66,6 +66,8 @@ int EVP_add_cipher(const EVP_CIPHER *c)
 	{
 	int r;
 
+	if (c == NULL) return(0);
+
 	r=OBJ_NAME_add(OBJ_nid2sn(c->nid),OBJ_NAME_TYPE_CIPHER_METH,(const char *)c);
 	if (r == 0) return(0);
 	check_defer(c->nid);