1 /* 2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 /* 11 * CAST low level APIs are deprecated for public use, but still ok for 12 * internal use. 13 */ 14 #include "internal/deprecated.h" 15 16 #include <stdio.h> 17 #include <string.h> 18 #include <stdlib.h> 19 20 #include <openssl/opensslconf.h> /* To see if OPENSSL_NO_CAST is defined */ 21 #include "internal/nelem.h" 22 #include "testutil.h" 23 24 #ifndef OPENSSL_NO_CAST 25 # include <openssl/cast.h> 26 27 static unsigned char k[16] = { 28 0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 29 0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A 30 }; 31 32 static unsigned char in[8] = 33 { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF }; 34 35 static int k_len[3] = { 16, 10, 5 }; 36 37 static unsigned char c[3][8] = { 38 {0x23, 0x8B, 0x4F, 0xE5, 0x84, 0x7E, 0x44, 0xB2}, 39 {0xEB, 0x6A, 0x71, 0x1A, 0x2C, 0x02, 0x27, 0x1B}, 40 {0x7A, 0xC8, 0x16, 0xD1, 0x6E, 0x9B, 0x30, 0x2E}, 41 }; 42 43 static unsigned char in_a[16] = { 44 0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 45 0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A 46 }; 47 48 static unsigned char in_b[16] = { 49 0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 50 0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A 51 }; 52 53 static unsigned char c_a[16] = { 54 0xEE, 0xA9, 0xD0, 0xA2, 0x49, 0xFD, 0x3B, 0xA6, 55 0xB3, 0x43, 0x6F, 0xB8, 0x9D, 0x6D, 0xCA, 0x92 56 }; 57 58 static unsigned char c_b[16] = { 59 0xB2, 0xC9, 0x5E, 0xB0, 0x0C, 0x31, 0xAD, 0x71, 60 0x80, 0xAC, 0x05, 0xB8, 0xE8, 0x3D, 0x69, 0x6E 61 }; 62 63 static int cast_test_vector(int z) 64 { 65 int testresult = 1; 66 CAST_KEY key; 67 unsigned char out[80]; 68 69 CAST_set_key(&key, k_len[z], k); 70 CAST_ecb_encrypt(in, out, &key, CAST_ENCRYPT); 71 if (!TEST_mem_eq(out, sizeof(c[z]), c[z], sizeof(c[z]))) { 72 TEST_info("CAST_ENCRYPT iteration %d failed (len=%d)", z, k_len[z]); 73 testresult = 0; 74 } 75 76 CAST_ecb_encrypt(out, out, &key, CAST_DECRYPT); 77 if (!TEST_mem_eq(out, sizeof(in), in, sizeof(in))) { 78 TEST_info("CAST_DECRYPT iteration %d failed (len=%d)", z, k_len[z]); 79 testresult = 0; 80 } 81 return testresult; 82 } 83 84 static int cast_test_iterations(void) 85 { 86 long l; 87 int testresult = 1; 88 CAST_KEY key, key_b; 89 unsigned char out_a[16], out_b[16]; 90 91 memcpy(out_a, in_a, sizeof(in_a)); 92 memcpy(out_b, in_b, sizeof(in_b)); 93 94 for (l = 0; l < 1000000L; l++) { 95 CAST_set_key(&key_b, 16, out_b); 96 CAST_ecb_encrypt(&(out_a[0]), &(out_a[0]), &key_b, CAST_ENCRYPT); 97 CAST_ecb_encrypt(&(out_a[8]), &(out_a[8]), &key_b, CAST_ENCRYPT); 98 CAST_set_key(&key, 16, out_a); 99 CAST_ecb_encrypt(&(out_b[0]), &(out_b[0]), &key, CAST_ENCRYPT); 100 CAST_ecb_encrypt(&(out_b[8]), &(out_b[8]), &key, CAST_ENCRYPT); 101 } 102 103 if (!TEST_mem_eq(out_a, sizeof(c_a), c_a, sizeof(c_a)) 104 || !TEST_mem_eq(out_b, sizeof(c_b), c_b, sizeof(c_b))) 105 testresult = 0; 106 107 return testresult; 108 } 109 #endif 110 111 int setup_tests(void) 112 { 113 #ifndef OPENSSL_NO_CAST 114 ADD_ALL_TESTS(cast_test_vector, OSSL_NELEM(k_len)); 115 ADD_TEST(cast_test_iterations); 116 #endif 117 return 1; 118 } 119