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Transactions without Signature
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Author Topic: Transactions without Signature  (Read 3371 times)

ChuckOne

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Transactions without Signature
« on: August 12, 2014, 04:37:51 pm »
How to distinguish normal transactions from SC transactions AND how to make sure nobody can create SC transactions?
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Come-from-Beyond

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Re: Transactions without Signature
« Reply #1 on: August 12, 2014, 04:40:40 pm »
Quote from: ChuckOne on August 12, 2014, 04:37:51 pm
How to distinguish normal transactions from SC transactions AND how to make sure nobody can create SC transactions?

NRS knows which transactions r created manually and which r created by SCs. API won't be able to return signature for SC-generated transactions so it's easy to distinguish them. Smart contracts won't have ability to "see" what transactions r manual and what r SC-generated though.
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ChuckOne

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Re: Transactions without Signature
« Reply #2 on: August 13, 2014, 10:15:21 am »
Quote from: Come-from-Beyond on August 12, 2014, 04:40:40 pm
Smart contracts won't have ability to "see" what transactions r manual and what r SC-generated though.

Why not?
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ChuckOne

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Re: Transactions without Signature
« Reply #3 on: August 13, 2014, 10:18:49 am »
Question remains: why should I not be able to create a block that includes a transaction without a signature so that I can pretend that it was created by an SC. (maybe, in order to harm an SC account by drawing its funds, or because SC transactions are cheaper, etc.)
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Come-from-Beyond

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Re: Transactions without Signature
« Reply #4 on: August 13, 2014, 11:20:46 am »
Quote from: ChuckOne on August 13, 2014, 10:15:21 am
Why not?

Why it should be visible? We can add this feature, but we can't remove it once added.
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Come-from-Beyond

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Re: Transactions without Signature
« Reply #5 on: August 13, 2014, 11:21:30 am »
Quote from: ChuckOne on August 13, 2014, 10:18:49 am
Question remains: why should I not be able to create a block that includes a transaction without a signature so that I can pretend that it was created by an SC. (maybe, in order to harm an SC account by drawing its funds, or because SC transactions are cheaper, etc.)

Coz blocks can't include transactions without signatures.
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ChuckOne

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Re: Transactions without Signature
« Reply #6 on: August 13, 2014, 10:27:31 pm »
Quote from: Come-from-Beyond on August 13, 2014, 11:21:30 am
Quote from: ChuckOne on August 13, 2014, 10:18:49 am
Question remains: why should I not be able to create a block that includes a transaction without a signature so that I can pretend that it was created by an SC. (maybe, in order to harm an SC account by drawing its funds, or because SC transactions are cheaper, etc.)

Coz blocks can't include transactions without signatures.

So, what happens to SC transactions? They have no signatures, so they will not included in a block?
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Come-from-Beyond

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Re: Transactions without Signature
« Reply #7 on: August 14, 2014, 07:08:19 am »
Quote from: ChuckOne on August 13, 2014, 10:27:31 pm
So, what happens to SC transactions? They have no signatures, so they will not included in a block?

They don't need to be included into a block, the transactions can be restored via SC execution.
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ChuckOne

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Re: Transactions without Signature
« Reply #8 on: August 14, 2014, 07:12:16 am »
Quote from: Come-from-Beyond on August 14, 2014, 07:08:19 am
Quote from: ChuckOne on August 13, 2014, 10:27:31 pm
So, what happens to SC transactions? They have no signatures, so they will not included in a block?

They don't need to be included into a block, the transactions can be restored via SC execution.

So, no materialization? Hmmm. Not sure if that is efficient. Maybe, I am wrong. You should talk to JL about that.
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