From 9d14aa5a07fada286cc9a76aa9245bc1be859001 Mon Sep 17 00:00:00 2001
From: Richard Basch <probe@mit.edu>
Date: Thu, 14 Dec 1995 00:50:25 +0000
Subject: [PATCH] 	* t_verify.c: Added an n-fold test

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@7231 dc483132-0cff-0310-8789-dd5450dbe970
---
 src/lib/crypto/des/t_verify.c | 36 +++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/src/lib/crypto/des/t_verify.c b/src/lib/crypto/des/t_verify.c
index 7ae08c763..cf7a56167 100644
--- a/src/lib/crypto/des/t_verify.c
+++ b/src/lib/crypto/des/t_verify.c
@@ -45,6 +45,7 @@ int mit_des_debug;
 
 krb5_encrypt_block eblock;
 krb5_keyblock keyblock;
+krb5_data kdata;
 
 unsigned char cipher_text[64];
 unsigned char clear_text[64] = "Now is the time for all " ;
@@ -55,6 +56,23 @@ unsigned char zero_text[8] = {0x0,0,0,0,0,0,0,0};
 unsigned char msb_text[8] = {0x0,0,0,0, 0,0,0,0x40}; /* to ANSI MSB */
 unsigned char *input;
 
+unsigned char *nfold_in[] = {
+    "basch",
+    "eichin",
+    "sommerfeld",
+    "MASSACHVSETTS INSTITVTE OF TECHNOLOGY" };
+
+unsigned char nfold_192[4][24] = {
+    { 0x1a, 0xab, 0x6b, 0x42, 0x96, 0x4b, 0x98, 0xb2, 0x1f, 0x8c, 0xde, 0x2d,
+      0x24, 0x48, 0xba, 0x34, 0x55, 0xd7, 0x86, 0x2c, 0x97, 0x31, 0x64, 0x3f },
+    { 0x65, 0x69, 0x63, 0x68, 0x69, 0x6e, 0x4b, 0x73, 0x2b, 0x4b, 0x1b, 0x43,
+      0xda, 0x1a, 0x5b, 0x99, 0x5a, 0x58, 0xd2, 0xc6, 0xd0, 0xd2, 0xdc, 0xca },
+    { 0x2f, 0x7a, 0x98, 0x55, 0x7c, 0x6e, 0xe4, 0xab, 0xad, 0xf4, 0xe7, 0x11,
+      0x92, 0xdd, 0x44, 0x2b, 0xd4, 0xff, 0x53, 0x25, 0xa5, 0xde, 0xf7, 0x5c },
+    { 0xdb, 0x3b, 0x0d, 0x8f, 0x0b, 0x06, 0x1e, 0x60, 0x32, 0x82, 0xb3, 0x08,
+      0xa5, 0x08, 0x41, 0x22, 0x9a, 0xd7, 0x98, 0xfa, 0xb9, 0x54, 0x0c, 0x1b }
+};
+
 /* 0x0123456789abcdef */
 unsigned char default_key[8] = {
     0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef
@@ -339,6 +357,24 @@ main(argc,argv)
     }
     else 
 	printf("verify: CBC checksum is correct\n\n");
+
+    printf("N-fold\n");
+    for (i=0; i<sizeof(nfold_in)/sizeof(char *); i++) {
+	kdata.data = nfold_in[i];
+	kdata.length = strlen(kdata.data);
+	printf("\tInput:\t\"%.*s\"\n", kdata.length, kdata.data);
+	printf("\t192-Fold:\t");
+	mit_des_n_fold(kdata.data, kdata.length, cipher_text, 24);
+	for (j=0; j<24; j++)
+	    printf("%s%02x", (j&3) ? "" : " ", cipher_text[j]);
+	printf("\n");
+	if (memcmp(cipher_text, nfold_192[i], 24)) {
+	    printf("verify: error in n-fold\n");
+	    exit(-1);
+	};
+    }
+    printf("verify: N-fold is correct\n\n");
+    
     exit(0);
 }
 
-- 
2.26.2