Merge branch 'fix/135' into develop
This commit is contained in:
Karel Miko
commit
797031170d
@ -609,7 +609,7 @@ As of this release the current cipher\_descriptors elements are the following:
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\hline \textbf{Name} & \textbf{Descriptor Name} & \textbf{Block Size} & \textbf{Key Range} & \textbf{Rounds} \\
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\hline Blowfish & blowfish\_desc & 8 & 8 $\ldots$ 56 & 16 \\
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\hline X-Tea & xtea\_desc & 8 & 16 & 32 \\
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\hline RC2 & rc2\_desc & 8 & 8 $\ldots$ 128 & 16 \\
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\hline RC2 & rc2\_desc & 8 & 5 $\ldots$ 128 & 16 \\
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\hline RC5-32/12/b & rc5\_desc & 8 & 8 $\ldots$ 128 & 12 $\ldots$ 24 \\
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\hline RC6-32/20/b & rc6\_desc & 16 & 8 $\ldots$ 128 & 20 \\
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\hline SAFER+ & saferp\_desc &16 & 16, 24, 32 & 8, 12, 16 \\
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@ -22,7 +22,7 @@
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/**
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@file rc2.c
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Implementation of LTC_RC2
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Implementation of RC2 with fixed effective key length of 64bits
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*/
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#ifdef LTC_RC2
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@ -60,26 +60,30 @@ static const unsigned char permute[256] = {
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};
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/**
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Initialize the LTC_RC2 block cipher
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Initialize the RC2 block cipher
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@param key The symmetric key you wish to pass
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@param keylen The key length in bytes
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@param bits The effective key length in bits
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@param num_rounds The number of rounds desired (0 for default)
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@param skey The key in as scheduled by this function.
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@return CRYPT_OK if successful
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*/
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int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
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int rc2_setup_ex(const unsigned char *key, int keylen, int bits, int num_rounds, symmetric_key *skey)
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{
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unsigned *xkey = skey->rc2.xkey;
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unsigned char tmp[128];
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unsigned T8, TM;
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int i, bits;
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int i;
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LTC_ARGCHK(key != NULL);
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LTC_ARGCHK(skey != NULL);
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if (keylen < 8 || keylen > 128) {
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if (keylen == 0 || keylen > 128 || bits > 1024) {
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return CRYPT_INVALID_KEYSIZE;
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}
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if (bits == 0) {
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bits = 1024;
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}
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if (num_rounds != 0 && num_rounds != 16) {
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return CRYPT_INVALID_ROUNDS;
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@ -97,7 +101,6 @@ int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_ke
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}
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/* Phase 2 - reduce effective key size to "bits" */
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bits = keylen<<3;
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T8 = (unsigned)(bits+7)>>3;
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TM = (255 >> (unsigned)(7 & -bits));
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tmp[128 - T8] = permute[tmp[128 - T8] & TM];
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@ -117,11 +120,27 @@ int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_ke
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return CRYPT_OK;
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}
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/**
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Initialize the RC2 block cipher
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The effective key length is here always keylen * 8
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@param key The symmetric key you wish to pass
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@param keylen The key length in bytes
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@param num_rounds The number of rounds desired (0 for default)
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@param skey The key in as scheduled by this function.
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@return CRYPT_OK if successful
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*/
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int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
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{
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return rc2_setup_ex(key, keylen, keylen * 8, num_rounds, skey);
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}
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/**********************************************************************\
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* Encrypt an 8-byte block of plaintext using the given key. *
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\**********************************************************************/
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/**
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Encrypts a block of text with LTC_RC2
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Encrypts a block of text with RC2
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@param pt The input plaintext (8 bytes)
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@param ct The output ciphertext (8 bytes)
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@param skey The key as scheduled
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@ -199,7 +218,7 @@ int rc2_ecb_encrypt( const unsigned char *pt,
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* Decrypt an 8-byte block of ciphertext using the given key. *
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\**********************************************************************/
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/**
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Decrypts a block of text with LTC_RC2
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Decrypts a block of text with RC2
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@param ct The input ciphertext (8 bytes)
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@param pt The output plaintext (8 bytes)
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@param skey The key as scheduled
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@ -275,7 +294,7 @@ int rc2_ecb_decrypt( const unsigned char *ct,
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#endif
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/**
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Performs a self-test of the LTC_RC2 block cipher
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Performs a self-test of the RC2 block cipher
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@return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
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*/
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int rc2_test(void)
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@ -284,18 +303,47 @@ int rc2_test(void)
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return CRYPT_NOP;
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#else
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static const struct {
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int keylen;
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int keylen, bits;
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unsigned char key[16], pt[8], ct[8];
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} tests[] = {
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{ 8,
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{ 8, 63,
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0xeb, 0xb7, 0x73, 0xf9, 0x93, 0x27, 0x8e, 0xff }
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},
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{ 8, 64,
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{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
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{ 0x27, 0x8b, 0x27, 0xe4, 0x2e, 0x2f, 0x0d, 0x49 }
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},
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{ 8, 64,
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{ 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
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{ 0x30, 0x64, 0x9e, 0xdf, 0x9b, 0xe7, 0xd2, 0xc2 }
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},
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{ 16,
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{ 1, 64,
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{ 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0x61, 0xa8, 0xa2, 0x44, 0xad, 0xac, 0xcc, 0xf0 }
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},
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{ 7, 64,
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{ 0x88, 0xbc, 0xa9, 0x0e, 0x90, 0x87, 0x5a, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0x6c, 0xcf, 0x43, 0x08, 0x97, 0x4c, 0x26, 0x7f }
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},
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{ 16, 64,
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{ 0x88, 0xbc, 0xa9, 0x0e, 0x90, 0x87, 0x5a, 0x7f,
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0x0f, 0x79, 0xc3, 0x84, 0x62, 0x7b, 0xaf, 0xb2 },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0x1a, 0x80, 0x7d, 0x27, 0x2b, 0xbe, 0x5d, 0xb1 }
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},
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{ 16, 128,
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{ 0x88, 0xbc, 0xa9, 0x0e, 0x90, 0x87, 0x5a, 0x7f,
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0x0f, 0x79, 0xc3, 0x84, 0x62, 0x7b, 0xaf, 0xb2 },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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@ -308,14 +356,22 @@ int rc2_test(void)
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for (x = 0; x < (int)(sizeof(tests) / sizeof(tests[0])); x++) {
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zeromem(tmp, sizeof(tmp));
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if (tests[x].bits == (tests[x].keylen * 8)) {
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if ((err = rc2_setup(tests[x].key, tests[x].keylen, 0, &skey)) != CRYPT_OK) {
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return err;
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}
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}
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else {
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if ((err = rc2_setup_ex(tests[x].key, tests[x].keylen, tests[x].bits, 0, &skey)) != CRYPT_OK) {
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return err;
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}
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}
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rc2_ecb_encrypt(tests[x].pt, tmp[0], &skey);
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rc2_ecb_decrypt(tmp[0], tmp[1], &skey);
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if (XMEMCMP(tmp[0], tests[x].ct, 8) != 0 || XMEMCMP(tmp[1], tests[x].pt, 8) != 0) {
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if (compare_testvector(tmp[0], 8, tests[x].ct, 8, "RC2 CT", x) != 0 ||
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compare_testvector(tmp[1], 8, tests[x].pt, 8, "RC2 PT", x) != 0) {
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return CRYPT_FAIL_TESTVECTOR;
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}
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@ -345,7 +401,7 @@ void rc2_done(symmetric_key *skey)
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int rc2_keysize(int *keysize)
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{
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LTC_ARGCHK(keysize != NULL);
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if (*keysize < 8) {
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if (*keysize < 5) {
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return CRYPT_INVALID_KEYSIZE;
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} else if (*keysize > 128) {
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*keysize = 128;
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@ -617,6 +617,7 @@ extern const struct ltc_cipher_descriptor rc6_desc;
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#ifdef LTC_RC2
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int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
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int rc2_setup_ex(const unsigned char *key, int keylen, int bits, int num_rounds, symmetric_key *skey);
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int rc2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey);
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int rc2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey);
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int rc2_test(void);
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@ -101,7 +101,11 @@ int crc32_test(void);
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/* yeah it's not exactly in misc in the library, but in testprof/x86_prof.c */
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#if defined(LTC_TEST) && defined(LTC_TEST_DBG)
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void print_hex(const char* what, const void* p, const unsigned long l);
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void print_hex(const char* what, const void* v, const unsigned long l);
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int compare_testvector(const void* is, const unsigned long is_len, const void* should, const unsigned long should_len, const char* what, int which);
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#else
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#define compare_testvector(is, is_len, should, should_len, what, which) \
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(((is_len) != (should_len)) || (XMEMCMP((is), (should), (is_len)) != 0))
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#endif
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/* $Source$ */
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@ -81,7 +81,9 @@ extern const struct ltc_prng_descriptor no_prng_desc;
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#endif
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void print_hex(const char* what, const void* v, const unsigned long l);
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#ifndef compare_testvector
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int compare_testvector(const void* is, const unsigned long is_len, const void* should, const unsigned long should_len, const char* what, int which);
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#endif
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int sorter(const void *a, const void *b);
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void tally_results(int type);
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ulong64 rdtsc (void);
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@ -35,6 +35,7 @@ void print_hex(const char* what, const void* v, const unsigned long l)
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}
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}
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#ifndef compare_testvector
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int compare_testvector(const void* is, const unsigned long is_len, const void* should, const unsigned long should_len, const char* what, int which)
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{
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int res = 0;
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@ -51,6 +52,7 @@ int compare_testvector(const void* is, const unsigned long is_len, const void* s
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return res;
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}
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#endif
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struct list results[100];
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int no_results;
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