1 files changed, 222 insertions, 0 deletions

diff --git a/src/lib/libcrypto/evp/e_rc2.c b/src/lib/libcrypto/evp/e_rc2.c
new file mode 100644
index 0000000000..3955c3ef84
--- /dev/null
+++ b/src/lib/libcrypto/evp/e_rc2.c
@@ -0,0 +1,222 @@
+/* crypto/evp/e_rc2.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * 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 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#ifndef NO_RC2
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include "evp_locl.h"
+
+static int rc2_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+                        const unsigned char *iv,int enc);
+static int rc2_meth_to_magic(EVP_CIPHER_CTX *ctx);
+static int rc2_magic_to_meth(int i);
+static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
+static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
+static int rc2_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);
+
+IMPLEMENT_BLOCK_CIPHER(rc2, rc2.ks, RC2, rc2, NID_rc2,
+                        8,
+                        EVP_RC2_KEY_SIZE, 8,
+                        EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
+                        rc2_init_key, NULL,
+                        rc2_set_asn1_type_and_iv, rc2_get_asn1_type_and_iv, 
+                        rc2_ctrl)
+
+#define RC2_40_MAGIC    0xa0
+#define RC2_64_MAGIC    0x78
+#define RC2_128_MAGIC   0x3a
+
+static EVP_CIPHER r2_64_cbc_cipher=
+        {
+        NID_rc2_64_cbc,
+        8,8 /* 64 bit */,8,
+        EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
+        rc2_init_key,
+        rc2_cbc_cipher,
+        NULL,
+        sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
+                sizeof((((EVP_CIPHER_CTX *)NULL)->c.rc2)),
+        rc2_set_asn1_type_and_iv,
+        rc2_get_asn1_type_and_iv,
+        rc2_ctrl,
+        NULL
+        };
+
+static EVP_CIPHER r2_40_cbc_cipher=
+        {
+        NID_rc2_40_cbc,
+        8,5 /* 40 bit */,8,
+        EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
+        rc2_init_key,
+        rc2_cbc_cipher,
+        NULL,
+        sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
+                sizeof((((EVP_CIPHER_CTX *)NULL)->c.rc2)),
+        rc2_set_asn1_type_and_iv,
+        rc2_get_asn1_type_and_iv,
+        rc2_ctrl,
+        NULL
+        };
+
+EVP_CIPHER *EVP_rc2_64_cbc(void)
+        {
+        return(&r2_64_cbc_cipher);
+        }
+
+EVP_CIPHER *EVP_rc2_40_cbc(void)
+        {
+        return(&r2_40_cbc_cipher);
+        }
+        
+static int rc2_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+                        const unsigned char *iv, int enc)
+        {
+        RC2_set_key(&(ctx->c.rc2.ks),EVP_CIPHER_CTX_key_length(ctx),
+                        key,ctx->c.rc2.key_bits);
+        return 1;
+        }
+
+static int rc2_meth_to_magic(EVP_CIPHER_CTX *e)
+        {
+        int i;
+
+        EVP_CIPHER_CTX_ctrl(e, EVP_CTRL_GET_RC2_KEY_BITS, 0, &i);
+        if      (i == 128) return(RC2_128_MAGIC);
+        else if (i == 64)  return(RC2_64_MAGIC);
+        else if (i == 40)  return(RC2_40_MAGIC);
+        else return(0);
+        }
+
+static int rc2_magic_to_meth(int i)
+        {
+        if      (i == RC2_128_MAGIC) return 128;
+        else if (i == RC2_64_MAGIC)  return 64;
+        else if (i == RC2_40_MAGIC)  return 40;
+        else
+                {
+                EVPerr(EVP_F_RC2_MAGIC_TO_METH,EVP_R_UNSUPPORTED_KEY_SIZE);
+                return(0);
+                }
+        }
+
+static int rc2_get_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
+        {
+        long num=0;
+        int i=0,l;
+        int key_bits;
+        unsigned char iv[EVP_MAX_IV_LENGTH];
+
+        if (type != NULL)
+                {
+                l=EVP_CIPHER_CTX_iv_length(c);
+                i=ASN1_TYPE_get_int_octetstring(type,&num,iv,l);
+                if (i != l)
+                        return(-1);
+                key_bits =rc2_magic_to_meth((int)num);
+                if (!key_bits)
+                        return(-1);
+                if(i > 0) EVP_CipherInit(c, NULL, NULL, iv, -1);
+                EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_RC2_KEY_BITS, key_bits, NULL);
+                EVP_CIPHER_CTX_set_key_length(c, key_bits / 8);
+                }
+        return(i);
+        }
+
+static int rc2_set_asn1_type_and_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
+        {
+        long num;
+        int i=0,j;
+
+        if (type != NULL)
+                {
+                num=rc2_meth_to_magic(c);
+                j=EVP_CIPHER_CTX_iv_length(c);
+                i=ASN1_TYPE_set_int_octetstring(type,num,c->oiv,j);
+                }
+        return(i);
+        }
+
+static int rc2_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
+        {
+                switch(type) {
+
+                        case EVP_CTRL_INIT:
+                        c->c.rc2.key_bits = EVP_CIPHER_CTX_key_length(c) * 8;
+                        return 1;
+
+                        case EVP_CTRL_GET_RC2_KEY_BITS:
+                        *(int *)ptr = c->c.rc2.key_bits;
+                        return 1;
+                        
+                        
+                        case EVP_CTRL_SET_RC2_KEY_BITS:
+                        if(arg > 0) {
+                                c->c.rc2.key_bits = arg;
+                                return 1;
+                        }
+                        return 0;
+
+                        default:
+                        return -1;
+                }
+        }
+
+#endif