Revert "Revert "and added files""

[bcm963xx.git] / userapps / opensource / openssl / demos / maurice / example3.c

diff --git a/userapps/opensource/openssl/demos/maurice/example3.c b/userapps/opensource/openssl/demos/maurice/example3.c
new file mode 100755 (executable)
index 0000000..03d8a20
--- /dev/null
+++ b/userapps/opensource/openssl/demos/maurice/example3.c
@@ -0,0 +1,87 @@
+/* NOCW */
+/*
+        Please read the README file for condition of use, before
+        using this software.
+
+        Maurice Gittens  <mgittens@gits.nl>   January 1997
+
+*/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <openssl/evp.h>
+
+#define STDIN          0
+#define STDOUT         1
+#define BUFLEN         512 
+#define INIT_VECTOR    "12345678"
+#define ENCRYPT                1
+#define DECRYPT         0
+#define ALG            EVP_des_ede3_cbc()
+
+static const char *usage = "Usage: example3 [-d] password\n";
+
+void do_cipher(char *,int);
+
+int main(int argc, char *argv[])
+{
+       if ((argc == 2))        
+       {
+               do_cipher(argv[1],ENCRYPT);
+       }       
+       else if ((argc == 3) && !strcmp(argv[1],"-d"))
+       {
+               do_cipher(argv[2],DECRYPT);
+       }
+       else
+       {
+               fprintf(stderr,"%s", usage);
+               exit(1);
+       }
+
+       return 0;               
+}
+
+void do_cipher(char *pw, int operation)
+{
+       char buf[BUFLEN];
+       char ebuf[BUFLEN + 8];
+       unsigned int ebuflen; /* rc; */
+        unsigned char iv[EVP_MAX_IV_LENGTH], key[EVP_MAX_KEY_LENGTH];
+       /* unsigned int ekeylen, net_ekeylen;  */
+       EVP_CIPHER_CTX ectx;
+        
+       memcpy(iv, INIT_VECTOR, sizeof(iv));
+
+       EVP_BytesToKey(ALG, EVP_md5(), "salu", pw, strlen(pw), 1, key, iv);
+
+       EVP_CIPHER_CTX_init(&ectx);
+       EVP_CipherInit_ex(&ectx, ALG, NULL, key, iv, operation);
+
+       while(1)
+       {
+               int readlen = read(STDIN, buf, sizeof(buf));
+       
+               if (readlen <= 0)
+               {
+                       if (!readlen)
+                          break;
+                       else
+                       {
+                               perror("read");
+                               exit(1);
+                       }
+               }
+
+               EVP_CipherUpdate(&ectx, ebuf, &ebuflen, buf, readlen);
+
+               write(STDOUT, ebuf, ebuflen);
+       }
+
+        EVP_CipherFinal_ex(&ectx, ebuf, &ebuflen); 
+       EVP_CIPHER_CTX_cleanup(&ectx);
+
+       write(STDOUT, ebuf, ebuflen); 
+}