initial/final commitHEADmaster

1 files changed, 262 insertions, 0 deletions

diff --git a/openssl-1.1.0h/crypto/evp/e_rc4_hmac_md5.c b/openssl-1.1.0h/crypto/evp/e_rc4_hmac_md5.c
new file mode 100644
index 0000000..8ab18c1
--- /dev/null
+++ b/openssl-1.1.0h/crypto/evp/e_rc4_hmac_md5.c
@@ -0,0 +1,262 @@
+/*
+ * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/opensslconf.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_MD5)
+
+# include <openssl/crypto.h>
+# include <openssl/evp.h>
+# include <openssl/objects.h>
+# include <openssl/rc4.h>
+# include <openssl/md5.h>
+# include "internal/evp_int.h"
+
+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 *)EVP_CIPHER_CTX_get_cipher_data(ctx))
+
+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(RC4_ASM) && defined(MD5_ASM) &&     (	   \
+        defined(__x86_64)       || defined(__x86_64__)  || \
+        defined(_M_AMD64)       || defined(_M_X64)      )
+#  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 (EVP_CIPHER_CTX_encrypting(ctx)) {
+        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 (CRYPTO_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));
+
+            OPENSSL_cleanse(hmac_key, sizeof(hmac_key));
+
+            return 1;
+        }
+    case EVP_CTRL_AEAD_TLS1_AAD:
+        {
+            unsigned char *p = ptr;
+            unsigned int len;
+
+            if (arg != EVP_AEAD_TLS1_AAD_LEN)
+                return -1;
+
+            len = p[arg - 2] << 8 | p[arg - 1];
+
+            if (!EVP_CIPHER_CTX_encrypting(ctx)) {
+                if (len < MD5_DIGEST_LENGTH)
+                    return -1;
+                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