Crypto modularity proj: Separate files under crypto directory based on their functionality. Move Kerberos specific files into krb subdir and MIT specific - into builtin subdir. Place all tests into crypto_tests subfolder.

bigredbutton: whitespace

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@22477 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 101 insertions, 0 deletions

diff --git a/src/lib/crypto/krb/string_to_key.c b/src/lib/crypto/krb/string_to_key.c
new file mode 100644
index 0000000..71d9db6
--- /dev/null
+++ b/src/lib/crypto/krb/string_to_key.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 1998 by the FundsXpress, INC.
+ * 
+ * All rights reserved.
+ * 
+ * Export of this software from the United States of America may require
+ * a specific license from the United States Government.  It is the
+ * responsibility of any person or organization contemplating export to
+ * obtain such a license before exporting.
+ * 
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of FundsXpress. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  FundsXpress makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ * 
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include "k5-int.h"
+#include "etypes.h"
+
+krb5_error_code KRB5_CALLCONV
+krb5_c_string_to_key_with_params(krb5_context context,
+				 krb5_enctype enctype,
+				 const krb5_data *string,
+				 const krb5_data *salt,
+				 const krb5_data *params,
+				 krb5_keyblock *key);
+
+
+krb5_error_code KRB5_CALLCONV
+krb5_c_string_to_key(krb5_context context, krb5_enctype enctype,
+		     const krb5_data *string, const krb5_data *salt,
+		     krb5_keyblock *key)
+{
+    return krb5_c_string_to_key_with_params(context, enctype, string, salt,
+					    NULL, key);
+}
+
+krb5_error_code KRB5_CALLCONV
+krb5_c_string_to_key_with_params(krb5_context context, krb5_enctype enctype,
+				 const krb5_data *string,
+				 const krb5_data *salt,
+				 const krb5_data *params, krb5_keyblock *key)
+{
+    int i;
+    krb5_error_code ret;
+    const struct krb5_enc_provider *enc;
+    size_t keybytes, keylength;
+
+    for (i=0; i<krb5_enctypes_length; i++) {
+	if (krb5_enctypes_list[i].etype == enctype)
+	    break;
+    }
+
+    if (i == krb5_enctypes_length)
+	return(KRB5_BAD_ENCTYPE);
+
+    enc = krb5_enctypes_list[i].enc;
+/* xxx AFS string2key function is indicated by a special length  in
+ * the salt in much of the code.  However only the DES enctypes can
+ * deal with this.  Using s2kparams would be a much better solution.*/
+    if (salt && salt->length == SALT_TYPE_AFS_LENGTH) {
+	switch (enctype) {
+	case ENCTYPE_DES_CBC_CRC:
+	case ENCTYPE_DES_CBC_MD4:
+	case ENCTYPE_DES_CBC_MD5:
+	    break;
+	default:
+	    return (KRB5_CRYPTO_INTERNAL);
+	}
+    }
+
+    keybytes = enc->keybytes;
+    keylength = enc->keylength;
+
+    if ((key->contents = (krb5_octet *) malloc(keylength)) == NULL)
+	return(ENOMEM);
+
+    key->magic = KV5M_KEYBLOCK;
+    key->enctype = enctype;
+    key->length = keylength;
+
+    ret = (*krb5_enctypes_list[i].str2key)(enc, string, salt, params, key);
+    if (ret) {
+	memset(key->contents, 0, keylength);
+	free(key->contents);
+	key->length = 0;
+	key->contents = NULL;
+    }
+
+    return(ret);
+}