RAND_pseudo_bytes is good enough for encryption IVs,

[openssl.git] / crypto / evp / e_ofb_d.c

diff --git a/crypto/evp/e_ofb_d.c b/crypto/evp/e_ofb_d.c
index a48af2e51b4cc5b58db3cb245bcffeae843bda0d..d51ce230f4d83231583d0a72cc9ac8205fe1abec 100644 (file)
--- a/crypto/evp/e_ofb_d.c
+++ b/crypto/evp/e_ofb_d.c
@@ -1,5 +1,5 @@
 /* crypto/evp/e_ofb_d.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
@@ -56,58 +56,52 @@
  * [including the GNU Public Licence.]
  */
 
+#ifndef NO_DES
 #include <stdio.h>
 #include "cryptlib.h"
-#include "evp.h"
-#include "objects.h"
+#include <openssl/evp.h>
+#include <openssl/objects.h>
 
-#ifndef NOPROTO
 static void des_ofb_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
        unsigned char *iv,int enc);
 static void des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
        unsigned char *in, unsigned int inl);
-#else
-static void des_ofb_init_key();
-static void des_ofb_cipher();
-#endif
-
 static EVP_CIPHER d_ofb_cipher=
        {
        NID_des_ofb64,
        1,8,8,
        des_ofb_init_key,
        des_ofb_cipher,
+       NULL,
+       sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
+               sizeof((((EVP_CIPHER_CTX *)NULL)->c.des_ks)),
+       EVP_CIPHER_set_asn1_iv,
+       EVP_CIPHER_get_asn1_iv,
        };
 
-EVP_CIPHER *EVP_des_ofb()
+EVP_CIPHER *EVP_des_ofb(void)
        {
        return(&d_ofb_cipher);
        }
        
-static void des_ofb_init_key(ctx,key,iv,enc)
-EVP_CIPHER_CTX *ctx;
-unsigned char *key;
-unsigned char *iv;
-int enc;
+static void des_ofb_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
+            unsigned char *iv, int enc)
        {
-       ctx->c.des_cfb.num=0;
+       des_cblock *deskey = (des_cblock *)key;
+
+       ctx->num=0;
 
        if (iv != NULL)
-               memcpy(&(ctx->c.des_cfb.oiv[0]),iv,8);
-       memcpy(&(ctx->c.des_cfb.iv[0]),&(ctx->c.des_cfb.oiv[0]),8);
-       if (key != NULL)
-               des_set_key((des_cblock *)key,ctx->c.des_cfb.ks);
+               memcpy(&(ctx->oiv[0]),iv,8);
+       memcpy(&(ctx->iv[0]),&(ctx->oiv[0]),8);
+       if (deskey != NULL)
+               des_set_key_unchecked(deskey,ctx->c.des_ks);
        }
 
-static void des_ofb_cipher(ctx,out,in,inl)
-EVP_CIPHER_CTX *ctx;
-unsigned char *out;
-unsigned char *in;
-unsigned int inl;
+static void des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+            unsigned char *in, unsigned int inl)
        {
-       des_ofb64_encrypt(
-               in,out,
-               (long)inl, ctx->c.des_cfb.ks,
-               (des_cblock *)&(ctx->c.des_cfb.iv[0]),
-               &ctx->c.des_cfb.num);
+       des_ofb64_encrypt(in,out,inl,ctx->c.des_ks,
+               (des_cblock *)&(ctx->iv[0]),&ctx->num);
        }
+#endif