S4Err TestSecretSharing()
{
S4Err err = kS4Err_NoErr;
uint8_t PT[PTsize];
uint8_t PT1[sizeof (PT)];
size_t keyLen = 0;
SHARES_ShareInfo* shareInfo[kNumShares];
SHARES_ShareInfo* testShares[kShareThreshold];
uint8_t testOffset[kShareThreshold];
SHARES_ContextRef shareCTX = kInvalidSHARES_ContextRef;
uint32_t i;
OPTESTLogInfo("\nTesting Shamir Key Spliting\n");
// create a random key
err = RNG_GetBytes(PT, sizeof(PT)); CKERR;
OPTESTLogVerbose("\t\tKey Data: (%ld bytes)\n", PTsize);
dumpHex(IF_LOG_DEBUG, PT, (int)sizeof (PT), 0);
OPTESTLogDebug("\n");
err = SHARES_Init( PT, sizeof(PT),
kNumShares,
kShareThreshold,
&shareCTX); CKERR;
for(i = 0; i < kNumShares; i++)
{
size_t shareLen = 0;
err = SHARES_GetShareInfo(shareCTX, i, &shareInfo[i], &shareLen); CKERR;
if(IF_LOG_VERBOSE)
{
OPTESTLogVerbose("\t Share %d: (%d bytes)\n", i,shareLen);
dumpHex(IF_LOG_DEBUG, shareInfo[i]->shareSecret , (int)shareInfo[i]->shareSecretLen, 0);
OPTESTLogVerbose("\n");
}
// OPTESTLogVerbose("\t Check shares for data leakage against known original message...");
// /* check shares for data leakage against known original message */
// err = CMP(shareBuf+(shareSize *i) + kSHAMIR_HEADERSIZE,
// PT, sizeof (PT))
// ? kS4Err_SelfTestFailed : kS4Err_NoErr;
// CKERR;
}
// create threshold number of shares to test with
sCreateTestOffsets(testOffset, sizeof(testOffset));
for(i = 0; i < kShareThreshold; i++)
testShares[i] = shareInfo[testOffset[i]];
/* attempt to combine with not enough shares */
err = SHARES_CombineShareInfo(kShareThreshold -1, testShares, PT1, sizeof(PT1),
&keyLen);
OPTESTLogVerbose("\t Attempt to combine with not enough shares = %s\n",
IsS4Err(err)?"fail":"pass");
if(err == kS4Err_NotEnoughShares) err = kS4Err_NoErr;
CKERR;
/* Reconstruct data */
OPTESTLogVerbose("\t Reconstructing data with just %d shares...",kShareThreshold);
err = SHARES_CombineShareInfo(kShareThreshold, testShares, PT1, sizeof(PT1),
&keyLen); CKERR;
OPTESTLogVerbose("OK\n");
/* check result against known original message */
OPTESTLogVerbose("\t Check result against known original message...\n");
err = compare2Results(PT, sizeof(PT), PT1, keyLen, kResultFormat_Byte, "SHAMIR Reconstruct"); //CKERR;
OPTESTLogInfo("\n");
done:
for(i = 0; i < kNumShares; i++)
{
if(shareInfo[i]) XFREE(shareInfo[i]);
}
if(SHARES_ContextRefIsValid(shareCTX))
SHARES_Free(shareCTX);
return err;
}
static SCLError scSaveRestoreKeyTest(SCKeySuite storageKeySuite, SCKeySuite eccKeySuite )
{
SCLError err = kSCLError_NoErr;
SCKeyContextRef sKey = kInvalidSCKeyContextRef; // storage key
SCKeyContextRef signKey = kInvalidSCKeyContextRef;
SCKeyContextRef pKey = kInvalidSCKeyContextRef; // pbdkf2 encrypted storage key
Cipher_Algorithm algorithm = kCipher_Algorithm_Invalid;
size_t symKeyLen = 0;
time_t startDate = time(NULL) ;
time_t expireDate = startDate + (3600 * 24);
char* user1 = "*****@*****.**";
uint8_t* keyData = NULL;
size_t keyDataLen = 0;
uint8_t* sKeyData = NULL;
size_t sKeyDataLen = 0;
bool isLocked = true;
char* passPhrase = "Pedicabo ego vos et irrumabo";
// used for comparison test
ECC_ContextRef ecc = kInvalidECC_ContextRef;
ECC_ContextRef ecc1 = kInvalidECC_ContextRef;
OPTESTLogInfo("\tTesting SCKeys %s Save/Restore using %s\n", sckey_suite_table(eccKeySuite), sckey_suite_table(storageKeySuite));
// setup a storage key for the private SCC key */
// we do this code just one time and export the encrypted passphrase for later use.
char* nonce = "some stupid nonce data";
uint8_t IV[32];
err = SCKeyCipherForKeySuite(storageKeySuite, &algorithm, &symKeyLen); CKERR;
err = RNG_GetBytes(IV,symKeyLen); CKERR;
err = SCKeyNew(storageKeySuite, (uint8_t*)nonce, strlen(nonce), &sKey); CKERR;
err = SCKeySetProperty (sKey, kSCKeyProp_IV, SCKeyPropertyType_Binary, IV , symKeyLen ); CKERR;
err = SCKeyEncryptToPassPhrase(sKey, (const uint8_t*)passPhrase, strlen(passPhrase), &pKey); CKERR;
err = SCKeySerialize(pKey, &sKeyData, &sKeyDataLen); CKERR;
OPTESTLogVerbose("\t\tExport storage key (%d bytes)\n", (int)sKeyDataLen );
OPTESTLogDebug("\t\tEncrypted Storage Key Packet: (%ld bytes)\n%s\n",sKeyDataLen, (char*)sKeyData);
SCKeyFree(pKey); pKey = NULL;
/* create a signing key for things like voicemail, etc */
err = SCKeyNew(eccKeySuite, (uint8_t*)nonce, strlen(nonce), &signKey); CKERR;
err = SCKeySetProperty (signKey, kSCKeyProp_Owner, SCKeyPropertyType_UTF8String, user1 , strlen(user1) ); CKERR;
err = SCKeySetProperty(signKey, kSCKeyProp_StartDate, SCKeyPropertyType_Time , &startDate, sizeof(time_t)); CKERR;
err = SCKeySetProperty(signKey, kSCKeyProp_ExpireDate, SCKeyPropertyType_Time , &expireDate, sizeof(time_t)); CKERR;
// used for testing
err = SCKeyExport_ECC(signKey, &ecc); CKERR;
/* save the private ecc key */
err = SCKeySerializePrivateWithSCKey(signKey, sKey, &keyData, &keyDataLen); CKERR;
OPTESTLogVerbose("\t\tExport ECC key (%d bytes)\n", (int)keyDataLen );
OPTESTLogDebug("\t\tPrivate Key Packet: (%ld bytes)\n%s\n",keyDataLen, (char*)keyData);
SCKeyFree(sKey); sKey = NULL;
SCKeyFree(signKey); signKey = NULL;
// pretend we readin keyData and sKeyData from some device..
OPTESTLogVerbose("\t\tReconstitute the storage key \n" );
// reconstitute the storage key
err = SCKeyDeserialize(sKeyData, strlen((char*) sKeyData) , &pKey); CKERR;
err = SCKeyDecryptFromPassPhrase(pKey, (const uint8_t*)passPhrase, strlen(passPhrase), &sKey); CKERR;
// resconstitute the ECC key
OPTESTLogVerbose("\t\tReconstitute the ECC key \n" );
err = SCKeyDeserialize(keyData, strlen((char*) keyData) , &signKey); CKERR;
OPTESTLogVerbose("\t\tUnlock Private Key Packet \n" );
err = SCKeyUnlockWithSCKey(signKey, sKey); CKERR;
err = SCKeyIsLocked(signKey,&isLocked); CKERR;
ASSERTERR(isLocked, kSCLError_SelfTestFailed);
OPTESTLogVerbose("\t\tConsistency check of reimported key \n" );
{
uint8_t pk[128];
size_t pkLen = sizeof (pk);
uint8_t pk1[128];
size_t pk1Len = sizeof (pk1);
uint8_t privKey[256];
size_t privKeyLen = sizeof (privKey);
uint8_t privKey1[256];
size_t privKey1Len = sizeof (privKey1);
err = SCKeyExport_ECC(signKey, &ecc1); CKERR;
err = ECC_Export_ANSI_X963(ecc , pk, pkLen, &pkLen);
err = ECC_Export_ANSI_X963(ecc1 , pk1, pk1Len, &pk1Len);
err = compare2Results(pk, pkLen, pk1, pk1Len, kResultFormat_Byte, "ECC public Key");
err = ECC_Export(ecc, true, privKey, sizeof(privKey), &privKeyLen);CKERR;
err = ECC_Export(ecc1, true, privKey1, sizeof(privKey1), &privKey1Len);CKERR;
err = compare2Results(privKey, privKeyLen, privKey1, privKey1Len, kResultFormat_Byte, "ECC private Key");
}
done:
OPTESTLogDebug("\n" );
if(ECC_ContextRefIsValid(ecc))
ECC_Free(ecc);
if(ECC_ContextRefIsValid(ecc1))
ECC_Free(ecc1);
if(SCKeyContextRefIsValid(pKey))
SCKeyFree(pKey);
if(SCKeyContextRefIsValid(pKey))
SCKeyFree(pKey);
if(SCKeyContextRefIsValid(signKey))
SCKeyFree(signKey);
if(SCKeyContextRefIsValid(sKey))
SCKeyFree(sKey);
return err;
}
SCLError sTestECC_DH(int keySize)
{
SCLError err = kSCLError_NoErr;
uint8_t pubKey1[256];
size_t pubKeyLen1 = 0;
uint8_t privKey1[256];
size_t privKeyLen1 = 0;
uint8_t pubKey2[256];
size_t pubKeyLen2 = 0;
uint8_t privKey2[256];
size_t privKeyLen2 = 0;
ECC_ContextRef eccPriv = kInvalidECC_ContextRef;
ECC_ContextRef eccPub = kInvalidECC_ContextRef;
uint8_t Z1 [256];
size_t Zlen1;
uint8_t Z2 [256];
size_t Zlen2;
OPTESTLogInfo("\tTesting ECC-DH (%d)\n", keySize);
/* create keys */
OPTESTLogDebug("\t\tGenerate Key 1\n");
err = ECC_Init(&eccPriv); CKERR;
err = ECC_Generate(eccPriv, keySize ); CKERR;
err = ECC_Export_ANSI_X963( eccPriv, pubKey1, sizeof(pubKey1), &pubKeyLen1);CKERR;
err = ECC_Export(eccPriv, true, privKey1, sizeof(privKey1), &privKeyLen1);CKERR;
OPTESTLogDebug("\t\tKey 1 Pub/Priv (%ld,%ld) bytes\n", pubKeyLen1, privKeyLen1);
OPTESTLogDebug("\t\tPublic\n");
dumpHex(IF_LOG_DEBUG, pubKey1, (int)pubKeyLen1, 0);
OPTESTLogDebug("\t\tPrivate\n");
dumpHex(IF_LOG_DEBUG, privKey1, (int)privKeyLen1, 0);
OPTESTLogDebug("\n");
if(ECC_ContextRefIsValid(eccPriv) ) ECC_Free(eccPriv );
eccPriv = kInvalidECC_ContextRef;
OPTESTLogDebug("\t\tGenerate Key 2\n");
err = ECC_Init(&eccPriv); CKERR;
err = ECC_Generate(eccPriv, keySize ); CKERR;
err = ECC_Export_ANSI_X963( eccPriv, pubKey2, sizeof(pubKey2), &pubKeyLen2);CKERR;
err = ECC_Export(eccPriv, true, privKey2, sizeof(privKey2), &privKeyLen2);CKERR;
OPTESTLogDebug("\t\tKey 2 Pub/Priv (%ld,%ld) bytes\n", pubKeyLen2, privKeyLen2);
OPTESTLogDebug("\t\tPublic\n");
dumpHex(IF_LOG_DEBUG, pubKey2, (int)pubKeyLen2, 0);
OPTESTLogDebug("\t\tPrivate\n");
dumpHex(IF_LOG_DEBUG, privKey2, (int)privKeyLen2, 0);
OPTESTLogDebug("\n");
// delete keys
if(ECC_ContextRefIsValid(eccPriv) ) ECC_Free(eccPriv );
eccPriv = kInvalidECC_ContextRef;
OPTESTLogDebug("\t\tCalculate Secret for Key1 -> Key2\n");
err = ECC_Init(&eccPriv);
err = ECC_Import(eccPriv, privKey1, privKeyLen1);CKERR;
err = ECC_Init(&eccPub);
err = ECC_Import_ANSI_X963( eccPub, pubKey2, pubKeyLen2);CKERR;
/* Kdk = MAC(Htotal,Z) where Z is the DH of Pki and PKr */
Zlen1 = sizeof(Z1);
err = ECC_SharedSecret(eccPriv, eccPub, Z1, sizeof(Z1), &Zlen1);CKERR;
OPTESTLogVerbose("\t\tECC Shared Secret (Z1): (%ld bytes)\n",Zlen1);
dumpHex(IF_LOG_DEBUG, Z1, (int)Zlen1 , 0);
OPTESTLogDebug("\n");
// delete keys
if(ECC_ContextRefIsValid(eccPriv) ) ECC_Free(eccPriv );
eccPriv = kInvalidECC_ContextRef;
// delete keys
if(ECC_ContextRefIsValid(eccPub) ) ECC_Free(eccPub );
eccPub = kInvalidECC_ContextRef;
OPTESTLogDebug("\t\tCalculate Secret for Key2 -> Key1\n");
err = ECC_Init(&eccPriv);
err = ECC_Import(eccPriv, privKey2, privKeyLen2);CKERR;
err = ECC_Init(&eccPub);
err = ECC_Import_ANSI_X963( eccPub, pubKey1, pubKeyLen1);CKERR;
/* Kdk = MAC(Htotal,Z) where Z is the DH of Pki and PKr */
Zlen2 = sizeof(Z2);
err = ECC_SharedSecret(eccPriv, eccPub, Z2, sizeof(Z2), &Zlen2);CKERR;
OPTESTLogVerbose("\t\tECC Shared Secret (Z2): (%ld bytes)\n",Zlen2);
dumpHex(IF_LOG_DEBUG, Z2, (int)Zlen2 , 0);
OPTESTLogDebug("\n");
OPTESTLogVerbose("\t\tCompare Secrets\n");
err = compare2Results(Z1, Zlen1, Z2, Zlen2, kResultFormat_Byte, "ECC Shared Secret");CKERR;
done:
if(eccPriv)
{
ECC_Free(eccPriv);
eccPriv = kInvalidECC_ContextRef;
}
if(eccPub)
{
ECC_Free(eccPub);
eccPub = kInvalidECC_ContextRef;
}
return err;
}
static SCLError sSCKeyTest1(SCKeySuite keySuite)
{
SCLError err = kSCLError_NoErr;
SCKeyContextRef key = kInvalidSCKeyContextRef;
SCKeyContextRef key1 = kInvalidSCKeyContextRef;
uint8_t symKey[32];
uint8_t symKey1[32];
uint8_t* keyData = NULL;
size_t keyDataLen = 0;
uint8_t* keyData1 = NULL;
size_t keyDataLen1 = 0;
char comment[256] = {0};
char comment1[256] = {0};
char* nonce = "some stupid nonce data";
time_t startDate = time(NULL) ;
time_t expireDate = startDate + (3600 * 24);
char* commentProperty = "comment";
SCKeySuite keyType1 = kSCKeySuite_Invalid ;
SCKeyPropertyType propType = SCKeyPropertyType_Invalid;
// fixed SYM key test
for(int i = 0; i< 32; i++) symKey[i] = i;
sprintf(comment,"Optest %s Symmetric Key", sckey_suite_table(keySuite));
OPTESTLogInfo("\tTesting Symmetric Key Save/Restore (%s)\n", sckey_suite_table(keySuite));
// create a SCKey with sym data and add some properties
err = SCKeyImport_Symmetric(keySuite, symKey, (uint8_t*)nonce, strlen(nonce), &key);
err = SCKeySetProperty (key, commentProperty, SCKeyPropertyType_UTF8String, comment, strlen(comment) ); CKERR;
err = SCKeySetProperty(key, kSCKeyProp_StartDate, SCKeyPropertyType_Time , &startDate, sizeof(time_t)); CKERR;
err = SCKeySetProperty(key, kSCKeyProp_ExpireDate, SCKeyPropertyType_Time , &expireDate, sizeof(time_t)); CKERR;
// serialize it
err = SCKeySerialize(key, &keyData, &keyDataLen); CKERR;
OPTESTLogDebug("\t\tKey Packet: (%ld bytes)\n%s\n",keyDataLen, (char*)keyData);
// deserialize it
err = SCKeyDeserialize(keyData, keyDataLen, &key1);CKERR;
XFREE(keyData); keyData = NULL;
err = SCKeyGetProperty(key1, kSCKeyProp_SCKeySuite, NULL, &keyType1, sizeof(SCKeySuite), NULL); CKERR;
err = compareResults(&keySuite, &keyType1, sizeof(SCKeySuite), kResultFormat_Byte, "keySuite");CKERR;
err = SCKeyGetProperty(key1, kSCKeyProp_SymmetricKey, NULL, &symKey1 , sizeof(symKey1), &keyDataLen); CKERR;
err = compareResults(symKey, symKey1, keyDataLen, kResultFormat_Byte, "symKey");CKERR;
XFREE(keyData); keyData = NULL;
err = SCKeyGetAllocatedProperty(key, kSCKeyProp_Locator, NULL, (void*)&keyData , &keyDataLen); CKERR;
err = SCKeyGetAllocatedProperty(key1, kSCKeyProp_Locator, &propType, (void*)&keyData1 , &keyDataLen1); CKERR;
err = compareResults(keyData, keyData1, keyDataLen, kResultFormat_Byte, "locator");CKERR;
err = SCKeyGetProperty(key1, commentProperty, &propType, comment1 , sizeof(comment1), &keyDataLen1); CKERR;
err = compare2Results(comment, strlen(comment), comment1, keyDataLen1, kResultFormat_Byte, "comment");CKERR;
if(keyData) XFREE(keyData);
if(keyData1) XFREE(keyData1);
if(key) SCKeyFree(key);
if(key1) SCKeyFree(key1);
done:
return err;
}
