X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fe_rc4.c;h=67af850bea1ab955cdc3159bd57bb9f8a55c3b73;hp=e1ffb5d95a6c475e388c8607db80a502f32e8aa5;hb=15ac971681bb81b9ab36383eb7014449ad190f9a;hpb=b7896b3cb86d80206af14a14d69b0717786f2729

diff --git a/crypto/evp/e_rc4.c b/crypto/evp/e_rc4.c
index e1ffb5d95a..67af850bea 100644
--- a/crypto/evp/e_rc4.c
+++ b/crypto/evp/e_rc4.c
@@ -1,5 +1,5 @@
 /* crypto/evp/e_rc4.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
@@ -56,54 +56,81 @@
  * [including the GNU Public Licence.]
  */
 
-#ifndef NO_RC4
-
 #include <stdio.h>
 #include "cryptlib.h"
-#include "evp.h"
-#include "objects.h"
 
-#ifndef NOPROTO
-static void rc4_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
-	unsigned char *iv,int enc);
-static void rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
-	unsigned char *in, unsigned int inl);
-#else
-static void rc4_init_key();
-static void rc4_cipher();
-#endif
+#ifndef OPENSSL_NO_RC4
+
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/rc4.h>
+
+/* FIXME: surely this is available elsewhere? */
+#define EVP_RC4_KEY_SIZE		16
 
-static EVP_CIPHER r4_cipher=
+typedef struct
+    {
+    RC4_KEY ks;	/* working key */
+    } EVP_RC4_KEY;
+
+#define data(ctx) ((EVP_RC4_KEY *)(ctx)->cipher_data)
+
+static int rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+			const unsigned char *iv,int enc);
+static int rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+		      const unsigned char *in, unsigned int inl);
+static const EVP_CIPHER r4_cipher=
 	{
 	NID_rc4,
 	1,EVP_RC4_KEY_SIZE,0,
+	EVP_CIPH_VARIABLE_LENGTH,
+	rc4_init_key,
+	rc4_cipher,
+	NULL,
+	sizeof(EVP_RC4_KEY),
+	NULL,
+	NULL,
+	NULL,
+	NULL
+	};
+
+static const EVP_CIPHER r4_40_cipher=
+	{
+	NID_rc4_40,
+	1,5 /* 40 bit */,0,
+	EVP_CIPH_VARIABLE_LENGTH,
 	rc4_init_key,
 	rc4_cipher,
+	NULL,
+	sizeof(EVP_RC4_KEY),
+	NULL, 
+	NULL,
+	NULL,
+	NULL
 	};
 
-EVP_CIPHER *EVP_rc4()
+const EVP_CIPHER *EVP_rc4(void)
 	{
 	return(&r4_cipher);
 	}
 
-static void rc4_init_key(ctx,key,iv,enc)
-EVP_CIPHER_CTX *ctx;
-unsigned char *key;
-unsigned char *iv;
-int enc;
+const EVP_CIPHER *EVP_rc4_40(void)
+	{
+	return(&r4_40_cipher);
+	}
+
+static int rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+			const unsigned char *iv, int enc)
 	{
-	if (key != NULL)
-		memcpy(&(ctx->c.rc4.key[0]),key,EVP_CIPHER_CTX_key_length(ctx));
-	RC4_set_key(&(ctx->c.rc4.ks),EVP_CIPHER_CTX_key_length(ctx),
-		ctx->c.rc4.key);
+	RC4_set_key(&data(ctx)->ks,EVP_CIPHER_CTX_key_length(ctx),
+		    key);
+	return 1;
 	}
 
-static void rc4_cipher(ctx,out,in,inl)
-EVP_CIPHER_CTX *ctx;
-unsigned char *out;
-unsigned char *in;
-unsigned int inl;
+static int rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+		      const unsigned char *in, unsigned int inl)
 	{
-	RC4(&(ctx->c.rc4.ks),inl,in,out);
+	RC4(&data(ctx)->ks,inl,in,out);
+	return 1;
 	}
 #endif