* 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:
* 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
+ * 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
* 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
#include <stdio.h>
#include "cryptlib.h"
-#include "evp.h"
-#include "objects.h"
-#ifndef NOPROTO
-static void desx_cbc_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
- unsigned char *iv,int enc);
-static void desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- unsigned char *in, unsigned int inl);
-#else
-static void desx_cbc_init_key();
-static void desx_cbc_cipher();
-#endif
+#ifndef OPENSSL_NO_DES
+
+# include <openssl/evp.h>
+# include <openssl/objects.h>
+# include "evp_locl.h"
+# include <openssl/des.h>
-static EVP_CIPHER d_xcbc_cipher=
- {
- NID_desx_cbc,
- 8,24,8,
- desx_cbc_init_key,
- desx_cbc_cipher,
- NULL,
- sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
- sizeof((((EVP_CIPHER_CTX *)NULL)->c.desx_cbc)),
- EVP_CIPHER_set_asn1_iv,
- EVP_CIPHER_get_asn1_iv,
- };
+static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc);
+static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl);
-EVP_CIPHER *EVP_desx_cbc(void)
- {
- return(&d_xcbc_cipher);
- }
-
-static void desx_cbc_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
- unsigned char *iv, int enc)
- {
- if (iv != NULL)
- memcpy(&(ctx->oiv[0]),iv,8);
- memcpy(&(ctx->iv[0]),&(ctx->oiv[0]),8);
- if (key != NULL)
- {
- des_set_key(key,ctx->c.desx_cbc.ks);
- memcpy(&(ctx->c.desx_cbc.inw[0]),&(key[8]),8);
- memcpy(&(ctx->c.desx_cbc.outw[0]),&(key[16]),8);
- }
- }
+typedef struct {
+ DES_key_schedule ks; /* key schedule */
+ DES_cblock inw;
+ DES_cblock outw;
+} DESX_CBC_KEY;
-static void desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- unsigned char *in, unsigned int inl)
- {
- des_xcbc_encrypt(in,out,inl,ctx->c.desx_cbc.ks,
- &(ctx->iv[0]),
- &(ctx->c.desx_cbc.inw[0]),
- &(ctx->c.desx_cbc.outw[0]),
- ctx->encrypt);
- }
+# define data(ctx) ((DESX_CBC_KEY *)(ctx)->cipher_data)
+
+static const EVP_CIPHER d_xcbc_cipher = {
+ NID_desx_cbc,
+ 8, 24, 8,
+ EVP_CIPH_CBC_MODE,
+ desx_cbc_init_key,
+ desx_cbc_cipher,
+ NULL,
+ sizeof(DESX_CBC_KEY),
+ EVP_CIPHER_set_asn1_iv,
+ EVP_CIPHER_get_asn1_iv,
+ NULL,
+ NULL
+};
+
+const EVP_CIPHER *EVP_desx_cbc(void)
+{
+ return (&d_xcbc_cipher);
+}
+
+static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ DES_cblock *deskey = (DES_cblock *)key;
+
+ DES_set_key_unchecked(deskey, &data(ctx)->ks);
+ memcpy(&data(ctx)->inw[0], &key[8], 8);
+ memcpy(&data(ctx)->outw[0], &key[16], 8);
+
+ return 1;
+}
+
+static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
+{
+ while (inl >= EVP_MAXCHUNK) {
+ DES_xcbc_encrypt(in, out, (long)EVP_MAXCHUNK, &data(ctx)->ks,
+ (DES_cblock *)&(ctx->iv[0]),
+ &data(ctx)->inw, &data(ctx)->outw, ctx->encrypt);
+ inl -= EVP_MAXCHUNK;
+ in += EVP_MAXCHUNK;
+ out += EVP_MAXCHUNK;
+ }
+ if (inl)
+ DES_xcbc_encrypt(in, out, (long)inl, &data(ctx)->ks,
+ (DES_cblock *)&(ctx->iv[0]),
+ &data(ctx)->inw, &data(ctx)->outw, ctx->encrypt);
+ return 1;
+}
+#endif
projects / openssl.git / blobdiff