pd.if.org Git - zpackage/blob - libtomcrypt/src/modes/xts/xts_test.c

   1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
   2  *
   3  * LibTomCrypt is a library that provides various cryptographic
   4  * algorithms in a highly modular and flexible manner.
   5  *
   6  * The library is free for all purposes without any express
   7  * guarantee it works.
   8  */
   9 #include "tomcrypt.h"
  10
  11 #ifdef LTC_XTS_MODE
  12
  13 #ifndef LTC_NO_TEST
  14 static int _xts_test_accel_xts_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long blocks,
  15                                        unsigned char *tweak, symmetric_key *skey1, symmetric_key *skey2)
  16 {
  17    int ret;
  18    symmetric_xts xts;
  19    int (*orig)(const unsigned char *, unsigned char *,
  20                unsigned long , unsigned char *, symmetric_key *,
  21                symmetric_key *);
  22
  23    /* AES can be under rijndael or aes... try to find it */
  24    if ((xts.cipher = find_cipher("aes")) == -1) {
  25       if ((xts.cipher = find_cipher("rijndael")) == -1) {
  26          return CRYPT_NOP;
  27       }
  28    }
  29    orig = cipher_descriptor[xts.cipher].accel_xts_encrypt;
  30    cipher_descriptor[xts.cipher].accel_xts_encrypt = NULL;
  31
  32    XMEMCPY(&xts.key1, skey1, sizeof(symmetric_key));
  33    XMEMCPY(&xts.key2, skey2, sizeof(symmetric_key));
  34
  35    ret = xts_encrypt(pt, blocks << 4, ct, tweak, &xts);
  36    cipher_descriptor[xts.cipher].accel_xts_encrypt = orig;
  37
  38    return ret;
  39 }
  40
  41 static int _xts_test_accel_xts_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long blocks,
  42                                        unsigned char *tweak, symmetric_key *skey1, symmetric_key *skey2)
  43 {
  44    int ret;
  45    symmetric_xts xts;
  46    int (*orig)(const unsigned char *, unsigned char *,
  47                unsigned long , unsigned char *, symmetric_key *,
  48                symmetric_key *);
  49
  50    /* AES can be under rijndael or aes... try to find it */
  51    if ((xts.cipher = find_cipher("aes")) == -1) {
  52       if ((xts.cipher = find_cipher("rijndael")) == -1) {
  53          return CRYPT_NOP;
  54       }
  55    }
  56    orig = cipher_descriptor[xts.cipher].accel_xts_decrypt;
  57    cipher_descriptor[xts.cipher].accel_xts_decrypt = NULL;
  58
  59    XMEMCPY(&xts.key1, skey1, sizeof(symmetric_key));
  60    XMEMCPY(&xts.key2, skey2, sizeof(symmetric_key));
  61
  62    ret = xts_decrypt(ct, blocks << 4, pt, tweak, &xts);
  63    cipher_descriptor[xts.cipher].accel_xts_decrypt = orig;
  64
  65    return ret;
  66 }
  67 #endif
  68
  69 /**
  70   Source donated by Elliptic Semiconductor Inc (www.ellipticsemi.com) to the LibTom Projects
  71
  72   Returns CRYPT_OK upon success.
  73 */
  74 int xts_test(void)
  75 {
  76 #ifdef LTC_NO_TEST
  77    return CRYPT_NOP;
  78 #else
  79    static const struct
  80    {
  81       int keylen;
  82       unsigned char key1[32];
  83       unsigned char key2[32];
  84       ulong64 seqnum;
  85       unsigned long PTLEN;
  86       unsigned char PTX[512], CTX[512];
  87    } tests[] = {
  88
  89 /* #1 32 byte key, 32 byte PTX */
  90 {
  91    32,
  92    { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
  93    { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
  94    0,
  95    32,
  96    { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
  97    { 0x91,0x7c,0xf6,0x9e,0xbd,0x68,0xb2,0xec,0x9b,0x9f,0xe9,0xa3,0xea,0xdd,0xa6,0x92,0xcd,0x43,0xd2,0xf5,0x95,0x98,0xed,0x85,0x8c,0x02,0xc2,0x65,0x2f,0xbf,0x92,0x2e },
  98 },
  99
 100 /* #2, 32 byte key, 32 byte PTX */
 101 {
 102    32,
 103    { 0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11 },
 104    { 0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22 },
 105    CONST64(0x3333333333),
 106    32,
 107    { 0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44 },
 108    { 0xc4,0x54,0x18,0x5e,0x6a,0x16,0x93,0x6e,0x39,0x33,0x40,0x38,0xac,0xef,0x83,0x8b,0xfb,0x18,0x6f,0xff,0x74,0x80,0xad,0xc4,0x28,0x93,0x82,0xec,0xd6,0xd3,0x94,0xf0 },
 109 },
 110
 111 /* #5 from xts.7, 32 byte key, 32 byte PTX */
 112 {
 113    32,
 114    { 0xff,0xfe,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf4,0xf3,0xf2,0xf1,0xf0 },
 115    { 0xbf,0xbe,0xbd,0xbc,0xbb,0xba,0xb9,0xb8,0xb7,0xb6,0xb5,0xb4,0xb3,0xb2,0xb1,0xb0 },
 116    CONST64(0x123456789a),
 117    32,
 118    { 0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44 },
 119    { 0xb0,0x1f,0x86,0xf8,0xed,0xc1,0x86,0x37,0x06,0xfa,0x8a,0x42,0x53,0xe3,0x4f,0x28,0xaf,0x31,0x9d,0xe3,0x83,0x34,0x87,0x0f,0x4d,0xd1,0xf9,0x4c,0xbe,0x98,0x32,0xf1 },
 120 },
 121
 122 /* #4, 32 byte key, 512 byte PTX  */
 123 {
 124    32,
 125    { 0x27,0x18,0x28,0x18,0x28,0x45,0x90,0x45,0x23,0x53,0x60,0x28,0x74,0x71,0x35,0x26 },
 126    { 0x31,0x41,0x59,0x26,0x53,0x58,0x97,0x93,0x23,0x84,0x62,0x64,0x33,0x83,0x27,0x95 },
 127    0,
 128    512,
 129    {
 130 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
 131 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
 132 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,
 133 0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
 134 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
 135 0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf,
 136 0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,0xd0,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xdb,0xdc,0xdd,0xde,0xdf,
 137 0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff,
 138 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
 139 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
 140 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,
 141 0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
 142 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
 143 0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf,
 144 0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,0xd0,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xdb,0xdc,0xdd,0xde,0xdf,
 145 0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff,
 146    },
 147    {
 148 0x27,0xa7,0x47,0x9b,0xef,0xa1,0xd4,0x76,0x48,0x9f,0x30,0x8c,0xd4,0xcf,0xa6,0xe2,0xa9,0x6e,0x4b,0xbe,0x32,0x08,0xff,0x25,0x28,0x7d,0xd3,0x81,0x96,0x16,0xe8,0x9c,
 149 0xc7,0x8c,0xf7,0xf5,0xe5,0x43,0x44,0x5f,0x83,0x33,0xd8,0xfa,0x7f,0x56,0x00,0x00,0x05,0x27,0x9f,0xa5,0xd8,0xb5,0xe4,0xad,0x40,0xe7,0x36,0xdd,0xb4,0xd3,0x54,0x12,
 150 0x32,0x80,0x63,0xfd,0x2a,0xab,0x53,0xe5,0xea,0x1e,0x0a,0x9f,0x33,0x25,0x00,0xa5,0xdf,0x94,0x87,0xd0,0x7a,0x5c,0x92,0xcc,0x51,0x2c,0x88,0x66,0xc7,0xe8,0x60,0xce,
 151 0x93,0xfd,0xf1,0x66,0xa2,0x49,0x12,0xb4,0x22,0x97,0x61,0x46,0xae,0x20,0xce,0x84,0x6b,0xb7,0xdc,0x9b,0xa9,0x4a,0x76,0x7a,0xae,0xf2,0x0c,0x0d,0x61,0xad,0x02,0x65,
 152 0x5e,0xa9,0x2d,0xc4,0xc4,0xe4,0x1a,0x89,0x52,0xc6,0x51,0xd3,0x31,0x74,0xbe,0x51,0xa1,0x0c,0x42,0x11,0x10,0xe6,0xd8,0x15,0x88,0xed,0xe8,0x21,0x03,0xa2,0x52,0xd8,
 153 0xa7,0x50,0xe8,0x76,0x8d,0xef,0xff,0xed,0x91,0x22,0x81,0x0a,0xae,0xb9,0x9f,0x91,0x72,0xaf,0x82,0xb6,0x04,0xdc,0x4b,0x8e,0x51,0xbc,0xb0,0x82,0x35,0xa6,0xf4,0x34,
 154 0x13,0x32,0xe4,0xca,0x60,0x48,0x2a,0x4b,0xa1,0xa0,0x3b,0x3e,0x65,0x00,0x8f,0xc5,0xda,0x76,0xb7,0x0b,0xf1,0x69,0x0d,0xb4,0xea,0xe2,0x9c,0x5f,0x1b,0xad,0xd0,0x3c,
 155 0x5c,0xcf,0x2a,0x55,0xd7,0x05,0xdd,0xcd,0x86,0xd4,0x49,0x51,0x1c,0xeb,0x7e,0xc3,0x0b,0xf1,0x2b,0x1f,0xa3,0x5b,0x91,0x3f,0x9f,0x74,0x7a,0x8a,0xfd,0x1b,0x13,0x0e,
 156 0x94,0xbf,0xf9,0x4e,0xff,0xd0,0x1a,0x91,0x73,0x5c,0xa1,0x72,0x6a,0xcd,0x0b,0x19,0x7c,0x4e,0x5b,0x03,0x39,0x36,0x97,0xe1,0x26,0x82,0x6f,0xb6,0xbb,0xde,0x8e,0xcc,
 157 0x1e,0x08,0x29,0x85,0x16,0xe2,0xc9,0xed,0x03,0xff,0x3c,0x1b,0x78,0x60,0xf6,0xde,0x76,0xd4,0xce,0xcd,0x94,0xc8,0x11,0x98,0x55,0xef,0x52,0x97,0xca,0x67,0xe9,0xf3,
 158 0xe7,0xff,0x72,0xb1,0xe9,0x97,0x85,0xca,0x0a,0x7e,0x77,0x20,0xc5,0xb3,0x6d,0xc6,0xd7,0x2c,0xac,0x95,0x74,0xc8,0xcb,0xbc,0x2f,0x80,0x1e,0x23,0xe5,0x6f,0xd3,0x44,
 159 0xb0,0x7f,0x22,0x15,0x4b,0xeb,0xa0,0xf0,0x8c,0xe8,0x89,0x1e,0x64,0x3e,0xd9,0x95,0xc9,0x4d,0x9a,0x69,0xc9,0xf1,0xb5,0xf4,0x99,0x02,0x7a,0x78,0x57,0x2a,0xee,0xbd,
 160 0x74,0xd2,0x0c,0xc3,0x98,0x81,0xc2,0x13,0xee,0x77,0x0b,0x10,0x10,0xe4,0xbe,0xa7,0x18,0x84,0x69,0x77,0xae,0x11,0x9f,0x7a,0x02,0x3a,0xb5,0x8c,0xca,0x0a,0xd7,0x52,
 161 0xaf,0xe6,0x56,0xbb,0x3c,0x17,0x25,0x6a,0x9f,0x6e,0x9b,0xf1,0x9f,0xdd,0x5a,0x38,0xfc,0x82,0xbb,0xe8,0x72,0xc5,0x53,0x9e,0xdb,0x60,0x9e,0xf4,0xf7,0x9c,0x20,0x3e,
 162 0xbb,0x14,0x0f,0x2e,0x58,0x3c,0xb2,0xad,0x15,0xb4,0xaa,0x5b,0x65,0x50,0x16,0xa8,0x44,0x92,0x77,0xdb,0xd4,0x77,0xef,0x2c,0x8d,0x6c,0x01,0x7d,0xb7,0x38,0xb1,0x8d,
 163 0xeb,0x4a,0x42,0x7d,0x19,0x23,0xce,0x3f,0xf2,0x62,0x73,0x57,0x79,0xa4,0x18,0xf2,0x0a,0x28,0x2d,0xf9,0x20,0x14,0x7b,0xea,0xbe,0x42,0x1e,0xe5,0x31,0x9d,0x05,0x68,
 164    }
 165 },
 166
 167 /* #7, 32 byte key, 17 byte PTX */
 168 {
 169    32,
 170    { 0xff,0xfe,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf4,0xf3,0xf2,0xf1,0xf0 },
 171    { 0xbf,0xbe,0xbd,0xbc,0xbb,0xba,0xb9,0xb8,0xb7,0xb6,0xb5,0xb4,0xb3,0xb2,0xb1,0xb0 },
 172    CONST64(0x123456789a),
 173    17,
 174    { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10 },
 175    { 0x6c,0x16,0x25,0xdb,0x46,0x71,0x52,0x2d,0x3d,0x75,0x99,0x60,0x1d,0xe7,0xca,0x09,0xed },
 176 },
 177
 178 /* #15, 32 byte key, 25 byte PTX */
 179 {
 180    32,
 181    { 0xff,0xfe,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf4,0xf3,0xf2,0xf1,0xf0 },
 182    { 0xbf,0xbe,0xbd,0xbc,0xbb,0xba,0xb9,0xb8,0xb7,0xb6,0xb5,0xb4,0xb3,0xb2,0xb1,0xb0 },
 183    CONST64(0x123456789a),
 184    25,
 185    { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18 },
 186    { 0x8f,0x4d,0xcb,0xad,0x55,0x55,0x8d,0x7b,0x4e,0x01,0xd9,0x37,0x9c,0xd4,0xea,0x22,0xed,0xbf,0x9d,0xac,0xe4,0x5d,0x6f,0x6a,0x73 },
 187 },
 188
 189 /* #21, 32 byte key, 31 byte PTX */
 190 {
 191    32,
 192    { 0xff,0xfe,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf4,0xf3,0xf2,0xf1,0xf0 },
 193    { 0xbf,0xbe,0xbd,0xbc,0xbb,0xba,0xb9,0xb8,0xb7,0xb6,0xb5,0xb4,0xb3,0xb2,0xb1,0xb0 },
 194    CONST64(0x123456789a),
 195    31,
 196    { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e },
 197    { 0xd0,0x5b,0xc0,0x90,0xa8,0xe0,0x4f,0x1b,0x3d,0x3e,0xcd,0xd5,0xba,0xec,0x0f,0xd4,0xed,0xbf,0x9d,0xac,0xe4,0x5d,0x6f,0x6a,0x73,0x06,0xe6,0x4b,0xe5,0xdd,0x82 },
 198 },
 199
 200 };
 201    unsigned char OUT[512], Torg[16], T[16];
 202    ulong64 seq;
 203    symmetric_xts xts;
 204    int i, j, k, err, idx;
 205    unsigned long len;
 206
 207    /* AES can be under rijndael or aes... try to find it */
 208    if ((idx = find_cipher("aes")) == -1) {
 209       if ((idx = find_cipher("rijndael")) == -1) {
 210          return CRYPT_NOP;
 211       }
 212    }
 213    for (k = 0; k < 4; ++k) {
 214       cipher_descriptor[idx].accel_xts_encrypt = NULL;
 215       cipher_descriptor[idx].accel_xts_decrypt = NULL;
 216       if (k & 0x1) {
 217          cipher_descriptor[idx].accel_xts_encrypt = _xts_test_accel_xts_encrypt;
 218       }
 219       if (k & 0x2) {
 220          cipher_descriptor[idx].accel_xts_decrypt = _xts_test_accel_xts_decrypt;
 221       }
 222       for (j = 0; j < 2; j++) {
 223          for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
 224             /* skip the cases where
 225              * the length is smaller than 2*blocklen
 226              * or the length is not a multiple of 32
 227              */
 228             if ((j == 1) && ((tests[i].PTLEN < 32) || (tests[i].PTLEN % 32))) {
 229                continue;
 230             }
 231             if ((k > 0) && (j == 1)) {
 232                continue;
 233             }
 234             len = tests[i].PTLEN / 2;
 235
 236             err = xts_start(idx, tests[i].key1, tests[i].key2, tests[i].keylen / 2, 0, &xts);
 237             if (err != CRYPT_OK) {
 238                return err;
 239             }
 240
 241             seq = tests[i].seqnum;
 242             STORE64L(seq, Torg);
 243             XMEMSET(Torg + 8, 0, 8);
 244
 245             XMEMCPY(T, Torg, sizeof(T));
 246             if (j == 0) {
 247                err = xts_encrypt(tests[i].PTX, tests[i].PTLEN, OUT, T, &xts);
 248                if (err != CRYPT_OK) {
 249                   xts_done(&xts);
 250                   return err;
 251                }
 252             } else {
 253                err = xts_encrypt(tests[i].PTX, len, OUT, T, &xts);
 254                if (err != CRYPT_OK) {
 255                   xts_done(&xts);
 256                   return err;
 257                }
 258                err = xts_encrypt(&tests[i].PTX[len], len, &OUT[len], T, &xts);
 259                if (err != CRYPT_OK) {
 260                   xts_done(&xts);
 261                   return err;
 262                }
 263             }
 264
 265             if (compare_testvector(OUT, tests[i].PTLEN, tests[i].CTX, tests[i].PTLEN, "XTS encrypt", i)) {
 266                xts_done(&xts);
 267                return CRYPT_FAIL_TESTVECTOR;
 268             }
 269
 270             XMEMCPY(T, Torg, sizeof(T));
 271             if (j == 0) {
 272                err = xts_decrypt(tests[i].CTX, tests[i].PTLEN, OUT, T, &xts);
 273                if (err != CRYPT_OK) {
 274                   xts_done(&xts);
 275                   return err;
 276                }
 277             } else {
 278                err = xts_decrypt(tests[i].CTX, len, OUT, T, &xts);
 279                if (err != CRYPT_OK) {
 280                   xts_done(&xts);
 281                   return err;
 282                }
 283                err = xts_decrypt(&tests[i].CTX[len], len, &OUT[len], T, &xts);
 284                if (err != CRYPT_OK) {
 285                   xts_done(&xts);
 286                   return err;
 287                }
 288             }
 289
 290             if (compare_testvector(OUT, tests[i].PTLEN, tests[i].PTX, tests[i].PTLEN, "XTS decrypt", i)) {
 291                xts_done(&xts);
 292                return CRYPT_FAIL_TESTVECTOR;
 293             }
 294             xts_done(&xts);
 295          }
 296       }
 297    }
 298    return CRYPT_OK;
 299 #endif
 300 }
 301
 302 #endif
 303
 304 /* ref:         $Format:%D$ */
 305 /* git commit:  $Format:%H$ */
 306 /* commit time: $Format:%ai$ */