X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fevp%2Fe_xcbc_d.c;h=250e88c8c5d7520b8698a33b5fd84f8c758078a2;hb=701d593f7095db84459c76265349a83d30a4cae5;hp=a6f849e93d01393dfb646f7d82db767f791b7c46;hpb=c2e4f17c1a0d4d5115c6ede9492de1615fe392ac;p=oweals%2Fopenssl.git

diff --git a/crypto/evp/e_xcbc_d.c b/crypto/evp/e_xcbc_d.c
index a6f849e93d..250e88c8c5 100644
--- a/crypto/evp/e_xcbc_d.c
+++ b/crypto/evp/e_xcbc_d.c
@@ -56,17 +56,20 @@
  * [including the GNU Public Licence.]
  */
 
-#ifndef OPENSSL_NO_DES
 #include <stdio.h>
 #include "cryptlib.h"
+
+#ifndef OPENSSL_NO_DES
+
 #include <openssl/evp.h>
 #include <openssl/objects.h>
+#include "evp_locl.h"
 #include <openssl/des.h>
 
 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, unsigned int inl);
+			   const unsigned char *in, size_t inl);
 
 
 typedef struct
@@ -89,6 +92,7 @@ static const EVP_CIPHER d_xcbc_cipher=
 	sizeof(DESX_CBC_KEY),
 	EVP_CIPHER_set_asn1_iv,
 	EVP_CIPHER_get_asn1_iv,
+	NULL,
 	NULL
 	};
 
@@ -110,13 +114,25 @@ static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 	}
 
 static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
-			   const unsigned char *in, unsigned int inl)
+			   const unsigned char *in, size_t inl)
 	{
-	DES_xcbc_encrypt(in,out,inl,&data(ctx)->ks,
+	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