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Diffstat (limited to 'openssl-1.1.0h/crypto/evp/p_seal.c')
-rw-r--r--openssl-1.1.0h/crypto/evp/p_seal.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/evp/p_seal.c b/openssl-1.1.0h/crypto/evp/p_seal.c
new file mode 100644
index 0000000..faa2464
--- /dev/null
+++ b/openssl-1.1.0h/crypto/evp/p_seal.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/rand.h>
+#include <openssl/rsa.h>
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+
+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;
+
+ 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;
+
+ 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);
+ }
+*/
+
+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;
+}