X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fenc.c;h=6531c58c542e70aa04a243a101afeddb55b5b822;hp=d033e380c4febf2e8acf3123ed2264d118500227;hb=cd3c54e50f0f0b3839bb70fabbe222e389732146;hpb=fd699ac55f736e5b39b5fe3c244115e6b776eafa

diff --git a/apps/enc.c b/apps/enc.c
index d033e380c4..6531c58c54 100644
--- a/apps/enc.c
+++ b/apps/enc.c
@@ -80,18 +80,22 @@ int set_hex(char *in,unsigned char *out,int size);
 #define BSIZE	(8*1024)
 #define	PROG	enc_main
 
+int MAIN(int, char **);
+
 int MAIN(int argc, char **argv)
 	{
+	static const char magic[]="Salted__";
+	char mbuf[8];	/* should be 1 smaller than magic */
 	char *strbuf=NULL;
 	unsigned char *buff=NULL,*bufsize=NULL;
 	int bsize=BSIZE,verbose=0;
 	int ret=1,inl;
 	unsigned char key[24],iv[MD5_DIGEST_LENGTH];
 	unsigned char salt[PKCS5_SALT_LEN];
-	char *str=NULL;
+	char *str=NULL, *passarg = NULL, *pass = NULL;
 	char *hkey=NULL,*hiv=NULL,*hsalt = NULL;
 	int enc=1,printkey=0,i,base64=0;
-	int debug=0,olb64=0,nosalt=1;
+	int debug=0,olb64=0,nosalt=0;
 	const EVP_CIPHER *cipher=NULL,*c;
 	char *inf=NULL,*outf=NULL;
 	BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
@@ -132,6 +136,11 @@ int MAIN(int argc, char **argv)
 			if (--argc < 1) goto bad;
 			outf= *(++argv);
 			}
+		else if (strcmp(*argv,"-pass") == 0)
+			{
+			if (--argc < 1) goto bad;
+			passarg= *(++argv);
+			}
 		else if	(strcmp(*argv,"-d") == 0)
 			enc=0;
 		else if	(strcmp(*argv,"-p") == 0)
@@ -222,7 +231,8 @@ int MAIN(int argc, char **argv)
 bad:
 			BIO_printf(bio_err,"options are\n");
 			BIO_printf(bio_err,"%-14s input file\n","-in <file>");
-			BIO_printf(bio_err,"%-14s output fileencrypt\n","-out <file>");
+			BIO_printf(bio_err,"%-14s output file\n","-out <file>");
+			BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>");
 			BIO_printf(bio_err,"%-14s encrypt\n","-e");
 			BIO_printf(bio_err,"%-14s decrypt\n","-d");
 			BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
@@ -243,7 +253,7 @@ bad:
 			BIO_printf(bio_err,"rc2     :128 bit key RC2 encryption\n");
 #endif
 #ifndef NO_BF
-			BIO_printf(bio_err,"bf      :128 bit key BlowFish encryption\n");
+			BIO_printf(bio_err,"bf      :128 bit key Blowfish encryption\n");
 #endif
 #ifndef NO_RC4
 			BIO_printf(bio_err," -%-5s :128 bit key RC4 encryption\n",
@@ -367,6 +377,14 @@ bad:
 			}
 		}
 
+	if(!str && passarg) {
+		if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
+			BIO_printf(bio_err, "Error getting password\n");
+			goto end;
+		}
+		str = pass;
+	}
+
 	if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
 		{
 		for (;;)
@@ -446,19 +464,29 @@ bad:
 								"invalid hex salt value\n");
 							goto end;
 						}
-					} else RAND_bytes(salt, PKCS5_SALT_LEN);
+					} else if (RAND_pseudo_bytes(salt, PKCS5_SALT_LEN) < 0)
+						goto end;
 					/* If -P option then don't bother writing */
-					if((printkey != 2) && (BIO_write(wbio,
-							(unsigned char *) salt,
-				    			PKCS5_SALT_LEN) != PKCS5_SALT_LEN)) {
+					if((printkey != 2)
+					   && (BIO_write(wbio,magic,
+							 sizeof magic-1) != sizeof magic-1
+					       || BIO_write(wbio,
+							    (char *)salt,
+							    PKCS5_SALT_LEN) != PKCS5_SALT_LEN)) {
 						BIO_printf(bio_err,"error writing output file\n");
 						goto end;
 					}
-				} else if(BIO_read(rbio, (unsigned char *)salt,
+				} else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf
+					  || BIO_read(rbio,
+						      (unsigned char *)salt,
 				    PKCS5_SALT_LEN) != PKCS5_SALT_LEN) {
 					BIO_printf(bio_err,"error reading input file\n");
 					goto end;
+				} else if(memcmp(mbuf,magic,sizeof magic-1)) {
+				    BIO_printf(bio_err,"bad magic number\n");
+				    goto end;
 				}
+
 				sptr = salt;
 			}
 
@@ -552,12 +580,14 @@ bad:
 		BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
 		}
 end:
+	ERR_print_errors(bio_err);
 	if (strbuf != NULL) Free(strbuf);
 	if (buff != NULL) Free(buff);
 	if (in != NULL) BIO_free(in);
 	if (out != NULL) BIO_free(out);
 	if (benc != NULL) BIO_free(benc);
 	if (b64 != NULL) BIO_free(b64);
+	if(pass) Free(pass);
 	EXIT(ret);
 	}