[BitShares] All you need to know about Privacy in BitShares/DPOS (Project: TITAN

clout

full member

Activity: 207

Merit: 100

Quote from: MasterMined710 on July 25, 2014, 06:55:31 PM

thanks for the info.
so are there transaction hashes so i can prove i sent the money/btsx.
if dan buys something from stans shop and then stan says he did not receive the money how can you verify stan received it without blockchain transaction hashes?

yes there are trx hashes

MasterMined710

legendary

Activity: 1182

Merit: 1000

thanks for the info.
so are there transaction hashes so i can prove i sent the money/btsx.
if dan buys something from stans shop and then stan says he did not receive the money how can you verify stan received it without blockchain transaction hashes?

xeroc

sr. member

Activity: 345

Merit: 250

Ah .. BTW: you can add comments/memos to you transactions.
Quote from the testnet:

Quote

1358.0 2014-06-24T09:40:00 cass-local xeroc-delegate have fun 10,000.000000 EUR 0.00000 XTS 99a05b77

this particular transaction as seen from the network:

Code:

{
  "trx": {
    "expiration": null,
    "delegate_slate_id": null,
    "operations": [{
        "type": "withdraw_op_type",
        "data": {
          "balance_id": "XTSDy8wNDV5uga4HA8meNvC1bzNKHzuwwP37",
          "amount": 10000,
          "claim_input_data": ""
        } 
      },{
        "type": "issue_asset_op_type",
        "data": {
          "amount": {
            "amount": 10000000000,
            "asset_id": 2
          } 
        } 
      },{
        "type": "deposit_op_type",
        "data": {
          "amount": 10000000000,
          "condition": {
            "asset_id": 2,
            "delegate_slate_id": 0,
            "type": "withdraw_signature_type",
            "data": {
              "owner": "XTS6ET615GHJ9d4dYKxE5qJkZLR746aQMHkr",
              "memo": {
                "one_time_key": "XTS4v2V1nQuKUECEezru3EtFi3i6c3AgoGoSCsbQEDkeJCUSctdVo",
                "encrypted_memo_data": "a7293c2fe8d39e585205ecd4a128312f31f130cda9c9d6cf10e203c8117dcd175c036a3c7da2ec0e1f6d92c32818ef3b14bcd4a61cf72eeea956d7195c76b0f2"
              } 
            } 
          } 
        } 
      } 
    ],
    "signatures": [
      "1f21ee08c16f4856cddb77e4da8e3c293df620dc6baa4c63d88366b3a994c794b5ec2941db71434e2bf5f35a694d3603766a8b290c24d7088b128b82a75e6dc65c",
      "1f59b012087df1270d84ba8118302eeef45bb01329139fad48efd6613ae6cbf231e97257592176a673e48809e1e5254a0665169608146e0c303374671a53ecbf03"
    ] 
  },
  "signed_keys": [
    "XTS4fHgXDYoXPtcgFfZShw8MFMSm5JDaQbxZ",
    "XTSHKmNC237TzfmqPRns4i6V7GqGV2uh9eHF",
    "XTS22AsrMD4G9p9cBk6BMNVn1epZNTEFtcki",
    "XTS83f7192ck15c8y3AMQYds9kwSNMdmYyEn",
    "XTSrYckEeP8ZoviKKJ2umNgL4c1VCoNryK8",
    "XTSPA5z1adLTPBTZFcWxpRAZMpxJ4xnDJnkv",
    "XTS2hoZwv9mVXHYgW8Qyht3Rj23BBYA1RMeS",
    "XTSAed1bUdTNCVJTRP94rYJrCJ2yDmdpszD1",
    "XTSEjpvcUbarGHyBYjPNKWk1z52B1gFTNKNN",
    "XTSFioBa5duVGaUFSfVWMnqbVfqZCR3pS9nA"
  ],
 "validation_error": null,
  "required_deposits": [],
  "provided_deposits": [[
      "XTSLBRucwGEZhBjjjfhsVDnVTXp8AWiir7ew",{
        "amount": 10000000000,
        "asset_id": 2  
      }
    ]
  ]
}

xeroc

sr. member

Activity: 345

Merit: 250

On the current testnet TITAN works flawlessly .. it's incredible ... instead of..

> need funds: XTS7zLgcAUW9Yqt9CEXfY5vMiaaRjREchNva1HBhPVAasW7kr94ZB

we now have

> need funds: myBlockchainName

It's awesome .. sending money to a nickname and noone on the blockchain can even interpret the transaction ..

merockstar

full member

Activity: 203

Merit: 100

BTS: merockstar420

https://github.com/BitShares/bitshares_toolkit/wiki/AYNTK_TITAN

All about TITAN
Where is the name TITAN coming from?

TITAN stands for T ransfer I nvisibly T o A ny N ame and describes that transactions performed are anonymous by default.
How can I use it?

Just type: wallet_transfer AMOUNT UNIT sender receiver memo
The wallet will do the rest!
As you can see it's the basic transmit procedure, thus all transactions are anonymous on the blockchain by default!

What does it mean? What are the features?

No need to exchange ugly addresses. Instead a Name can be registered with the blockchain which suffices to receive payments
The receiver is anonymous to everyone except the sender.
Simplifies accounting in the wallet, as you can register arbitrary names and no one can see your balance (except you, of course)!

How can the receiver be anonymous for everyone else?

For each payment a temporary one-time address is generated
The details of TITAN can be summarized to:

dan => DANS_EXT_PUBLIC_KEY
scott => SCOTTS_EXT_PUBLIC_KEY

scott: Generate OneTimePrivateKey & OneTimePublicKey Pair
scott: OneTimePrivateKey * DANS_EXT_PUBLIC_KEY => SECRET
DANS_EXT_PUBLIC_KEY.child( SECRET ) => RECEIVE_PUBLIC_KEY => RECEIVE_ADDRESS
scott: RECEIVE_PUBLIC_KEY * SCOTTS_EXT_PRIVATE_KEY => CHECK_SECRET
=> SHORT_HASH(CHECK_SECRET) == SHORT_SIGNATURE
scott-broadcast: OneTimePublicKey + RECEIVE_ADDRESS + ENCRYPT( from scott + SHORT_SIGNATURE, SECRET )
dan: OneTimePublicKey * DANS_EXT_PRIVATE_KEY => SECRET
DANS_EXT_PRIVATE_KEY.child( SECRET ) => RECEIVE_PRIVATE_KEY =>
=> RECEIVE_PUBLIC_KEY => RECEIVE_ADDRESS

dan: DECRYPT( data, SECRET ) => "from scott" + SHORT_SIGNATURE
dan: SCOTT_EXT_PUBLIC_KEY * RECEIVE_PRIVATE_KEY => CHECK_SECRET => SHORT_HASH(CHECK_SECRET)

Isn't that exactly the same as bitcoin's stealth-addresses?

This is a variation of stealth addresses (http://www.coindesk.com/stealth-addresses-secret-bitcoin-privacy) that leverages the name system to solve the first part of the problem.
Just type: wallet_transfer AMOUNT UNIT sender receiver memo

Are read-only/watch-only keys possible with TITAN?

Yes. The basic support is already in place.
Where can I find more about about the various types keys used in TITAN

We have a dedicated article about the key structures in place in this wiki:

Wallets, accounts, owners & active keys - The differences between Bitcoin and Bitshares

What advanced features does it have?

Ability to encode a message and 'from' data into the transaction for payment details, much like a 'purpose field'

Sources

https://bitsharestalk.org/index.php?topic=4887.msg64091#msg64091
https://bitsharestalk.org/index.php?topic=4699.0

Topic: [BitShares] All you need to know about Privacy in BitShares/DPOS (Project: TITAN (Read 1152 times)