-/* crypto/evp/p_seal.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
* 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 "rand.h"
-#include "rsa.h"
-#include "evp.h"
-#include "objects.h"
-#include "x509.h"
+#include "internal/cryptlib.h"
+#include <openssl/rand.h>
+#ifndef OPENSSL_NO_RSA
+# include <openssl/rsa.h>
+#endif
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
-int EVP_SealInit(ctx,type,ek,ekl,iv,pubk,npubk)
-EVP_CIPHER_CTX *ctx;
-EVP_CIPHER *type;
-unsigned char **ek;
-int *ekl;
-unsigned char *iv;
-EVP_PKEY **pubk;
-int npubk;
- {
- unsigned char key[EVP_MAX_KEY_LENGTH];
- int i,ret=0,n;
-
- if (npubk <= 0) return(0);
- RAND_bytes(key,EVP_MAX_KEY_LENGTH);
- if (type->iv_len > 0)
- RAND_bytes(iv,type->iv_len);
+int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+ unsigned char **ek, int *ekl, unsigned char *iv,
+ EVP_PKEY **pubk, int npubk)
+{
+ unsigned char key[EVP_MAX_KEY_LENGTH];
+ int i;
- EVP_EncryptInit(ctx,type,key,iv);
- for (i=0; i<npubk; i++)
- {
- if (pubk[i]->type != EVP_PKEY_RSA)
- {
- EVPerr(EVP_F_EVP_SEALINIT,EVP_R_PUBLIC_KEY_NOT_RSA);
- goto err;
- }
- n=RSA_public_encrypt(type->key_len,key,ek[i],pubk[i]->pkey.rsa,
- RSA_PKCS1_PADDING);
- if (n <= 0) goto err;
- ekl[i]=n;
- }
- ret=npubk;
-err:
- memset(key,0,EVP_MAX_KEY_LENGTH);
- return(ret);
- }
+ if (type) {
+ EVP_CIPHER_CTX_reset(ctx);
+ if (!EVP_EncryptInit_ex(ctx, type, NULL, NULL, NULL))
+ return 0;
+ }
+ if ((npubk <= 0) || !pubk)
+ return 1;
+ if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
+ return 0;
+ if (EVP_CIPHER_CTX_iv_length(ctx)
+ && RAND_bytes(iv, EVP_CIPHER_CTX_iv_length(ctx)) <= 0)
+ return 0;
-/* MACRO
+ if (!EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv))
+ return 0;
+
+ for (i = 0; i < npubk; i++) {
+ ekl[i] =
+ EVP_PKEY_encrypt_old(ek[i], key, EVP_CIPHER_CTX_key_length(ctx),
+ pubk[i]);
+ if (ekl[i] <= 0)
+ return (-1);
+ }
+ return (npubk);
+}
+
+/*- MACRO
void EVP_SealUpdate(ctx,out,outl,in,inl)
EVP_CIPHER_CTX *ctx;
unsigned char *out;
int *outl;
unsigned char *in;
int inl;
- {
- EVP_EncryptUpdate(ctx,out,outl,in,inl);
- }
+ {
+ EVP_EncryptUpdate(ctx,out,outl,in,inl);
+ }
*/
-void EVP_SealFinal(ctx,out,outl)
-EVP_CIPHER_CTX *ctx;
-unsigned char *out;
-int *outl;
- {
- EVP_EncryptFinal(ctx,out,outl);
- EVP_EncryptInit(ctx,NULL,NULL,NULL);
- }
+int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
+{
+ int i;
+ i = EVP_EncryptFinal_ex(ctx, out, outl);
+ if (i)
+ i = EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, NULL);
+ return i;
+}