issueasset RPC call: blind flag not working (issuance transaction is always blinded)

[lclc]

When using the issueasset RPC method with the blinding parameter (parameter #3) set to false the issuance transaction should have the issuance amount public visible, but it isn't.

What behavior did you expect?
That the amount of issued tokens is visible on the blockchain for everyone (also for other nodes).
Or in other words: that the transaction amount isn't blinded.

How reliably can you reproduce the issue, what are the steps to do so?
This happens everytime.

Example:
ubuntu@Liquid:~$ ./liquid-cli issueasset 42 0 false { "txid": "8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be", "vin": 0, "entropy": "28ea6b183fff47dd5f5c65ea20c1559ae57fb8de2900f2fffbfc4af021128624", "asset": "9cf578635538d5f5151727f194c825a39b3057a4b1c7b906b4c4046ae79b2f92", "token": "b10fde25c230cda4433ca2aaa4453bcbab7fd4a077f5aaaab965cf9a527ff19b" }

getrawtransactions shows that the amount is blinded:

{
  "hex": "...",
  "txid": "8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be",
  "hash": "e61e6208a8c6994878741350fbb478a6b8a52f38b2f565e0ebaddb36042f4e3a",
  "withash": "9c1ad5aca7cd11817f191ce50f3f7cbd64a2602023d28b268155c189c7b3f4a5",
  "size": 6524,
  "vsize": 2026,
  "version": 2,
  "locktime": 230304,
  "vin": [
    {
      "txid": "0e545cac1caae31a8771bda59ffbca27484b2766a6f104606307c02bb13099ea",
      "vout": 1,
      "scriptSig": {
        "asm": "3044022024dc83992cbd9ff7ff426730597adc9b82f3129a006988759f876282ffde4dc202202e56a42a3d53a08d84dfd88896246c362307706f394747c1704dbdcdb4bc091a[ALL] 033e8175ee3924eaa52c1fdf567f0345ffb005f4656e1c3adfcacd0b21656053a1",
        "hex": "473044022024dc83992cbd9ff7ff426730597adc9b82f3129a006988759f876282ffde4dc202202e56a42a3d53a08d84dfd88896246c362307706f394747c1704dbdcdb4bc091a0121033e8175ee3924eaa52c1fdf567f0345ffb005f4656e1c3adfcacd0b21656053a1"
      },
      "is_pegin": false,
      "scriptWitness": [
      ],
      "pegin_witness": [
      ],
      "issuance": {
        "assetBlindingNonce": "0000000000000000000000000000000000000000000000000000000000000000",
        "assetEntropy": "28ea6b183fff47dd5f5c65ea20c1559ae57fb8de2900f2fffbfc4af021128624",
        "isreissuance": false,
        "token": "b10fde25c230cda4433ca2aaa4453bcbab7fd4a077f5aaaab965cf9a527ff19b",
        "asset": "9cf578635538d5f5151727f194c825a39b3057a4b1c7b906b4c4046ae79b2f92",
        "assetamount": 42.00000000
      },
      "sequence": 4294967294
    }
  ],
  "vout": [
    {
      "value-minimum": 0.00000001,
      "value-maximum": 687.19476736,
      "ct-exponent": 0,
      "ct-bits": 36,
      "amountcommitment": "08011db5851805572d0ed358d90ad00ee290ec560c0caeeb9703a3a896dc4d52e1",
      "assetcommitment": "0a11560906ac83bd115681a2230b652f4ca8b3d9a263bc8f8350ed25fbe520228e",
      "n": 0,
      "scriptPubKey": {
        "asm": "OP_DUP OP_HASH160 c86ec572663a002bbad77484177c6074e0a1ea8c OP_EQUALVERIFY OP_CHECKSIG",
        "hex": "76a914c86ec572663a002bbad77484177c6074e0a1ea8c88ac",
        "reqSigs": 1,
        "type": "pubkeyhash",
        "addresses": [
          "QFYAy5a85ni1FDVuUwREqega33Ngu9VhMk"
        ]
      }
    }, 
    {
      "value-minimum": 0.00000001,
      "value-maximum": 687.19476736,
      "ct-exponent": 0,
      "ct-bits": 36,
      "amountcommitment": "08ec15cc38ad11db252e5babd6ee72a9206351871b9da030211d091df6ff460ae6",
      "assetcommitment": "0b634512d2be57f256b2285f52d6264b2ab8c049adc96c459e418ca746fe7609f9",
      "n": 1,
      "scriptPubKey": {
        "asm": "OP_DUP OP_HASH160 8e3aca803163707843ad60c0be724eba9515077f OP_EQUALVERIFY OP_CHECKSIG",
        "hex": "76a9148e3aca803163707843ad60c0be724eba9515077f88ac",
        "reqSigs": 1,
        "type": "pubkeyhash",
        "addresses": [
          "QAERWJTWvFimRJTXzrNWuThiMkr3BqGYir"
        ]
      }
    }, 
    {
      "value": 0.00002027,
      "asset": "6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d",
      "n": 2,
      "scriptPubKey": {
        "asm": "",
        "hex": "",
        "type": "fee"
      }
    }
  ]
}

Also the blockstream.info blockexplorer shows the amount as hidden: https://blockstream.info/liquid/tx/8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be

Version v3.14.1.23-72ae7d304

I quickly scrolled through the code but couldn't yet find the problem.

[instagibbs]

The blinding is on the issuance side(or not). I see 42 of the asset?

…

On Sun, Mar 24, 2019, 10:21 AM Lucas Betschart ***@***.***> wrote: When using the issueasset RPC method <https://github.com/ElementsProject/elementsbp-api-reference/blob/master/api.md#issueasset> with the blinding parameter (parameter #3 <#3>) set to false the issuance transaction should have the issuance amount public visible, but it isn't. *What behavior did you expect?* That the amount of issued tokens is visible for other nodes (the transaction isn't blinded). *How reliably can you reproduce the issue, what are the steps to do so?* This happens everytime. Example: ***@***.***:~$ ./liquid-cli issueasset 42 0 false { "txid": "8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be", "vin": 0, "entropy": "28ea6b183fff47dd5f5c65ea20c1559ae57fb8de2900f2fffbfc4af021128624", "asset": "9cf578635538d5f5151727f194c825a39b3057a4b1c7b906b4c4046ae79b2f92", "token": "b10fde25c230cda4433ca2aaa4453bcbab7fd4a077f5aaaab965cf9a527ff19b" } getrawtransactions shows that the amount is blinded: { "hex": "...", "txid": "8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be", "hash": "e61e6208a8c6994878741350fbb478a6b8a52f38b2f565e0ebaddb36042f4e3a", "withash": "9c1ad5aca7cd11817f191ce50f3f7cbd64a2602023d28b268155c189c7b3f4a5", "size": 6524, "vsize": 2026, "version": 2, "locktime": 230304, "vin": [ { "txid": "0e545cac1caae31a8771bda59ffbca27484b2766a6f104606307c02bb13099ea", "vout": 1, "scriptSig": { "asm": "3044022024dc83992cbd9ff7ff426730597adc9b82f3129a006988759f876282ffde4dc202202e56a42a3d53a08d84dfd88896246c362307706f394747c1704dbdcdb4bc091a[ALL] 033e8175ee3924eaa52c1fdf567f0345ffb005f4656e1c3adfcacd0b21656053a1", "hex": "473044022024dc83992cbd9ff7ff426730597adc9b82f3129a006988759f876282ffde4dc202202e56a42a3d53a08d84dfd88896246c362307706f394747c1704dbdcdb4bc091a0121033e8175ee3924eaa52c1fdf567f0345ffb005f4656e1c3adfcacd0b21656053a1" }, "is_pegin": false, "scriptWitness": [ ], "pegin_witness": [ ], "issuance": { "assetBlindingNonce": "0000000000000000000000000000000000000000000000000000000000000000", "assetEntropy": "28ea6b183fff47dd5f5c65ea20c1559ae57fb8de2900f2fffbfc4af021128624", "isreissuance": false, "token": "b10fde25c230cda4433ca2aaa4453bcbab7fd4a077f5aaaab965cf9a527ff19b", "asset": "9cf578635538d5f5151727f194c825a39b3057a4b1c7b906b4c4046ae79b2f92", "assetamount": 42.00000000 }, "sequence": 4294967294 } ], "vout": [ { "value-minimum": 0.00000001, "value-maximum": 687.19476736, "ct-exponent": 0, "ct-bits": 36, "amountcommitment": "08011db5851805572d0ed358d90ad00ee290ec560c0caeeb9703a3a896dc4d52e1", "assetcommitment": "0a11560906ac83bd115681a2230b652f4ca8b3d9a263bc8f8350ed25fbe520228e", "n": 0, "scriptPubKey": { "asm": "OP_DUP OP_HASH160 c86ec572663a002bbad77484177c6074e0a1ea8c OP_EQUALVERIFY OP_CHECKSIG", "hex": "76a914c86ec572663a002bbad77484177c6074e0a1ea8c88ac", "reqSigs": 1, "type": "pubkeyhash", "addresses": [ "QFYAy5a85ni1FDVuUwREqega33Ngu9VhMk" ] } }, { "value-minimum": 0.00000001, "value-maximum": 687.19476736, "ct-exponent": 0, "ct-bits": 36, "amountcommitment": "08ec15cc38ad11db252e5babd6ee72a9206351871b9da030211d091df6ff460ae6", "assetcommitment": "0b634512d2be57f256b2285f52d6264b2ab8c049adc96c459e418ca746fe7609f9", "n": 1, "scriptPubKey": { "asm": "OP_DUP OP_HASH160 8e3aca803163707843ad60c0be724eba9515077f OP_EQUALVERIFY OP_CHECKSIG", "hex": "76a9148e3aca803163707843ad60c0be724eba9515077f88ac", "reqSigs": 1, "type": "pubkeyhash", "addresses": [ "QAERWJTWvFimRJTXzrNWuThiMkr3BqGYir" ] } }, { "value": 0.00002027, "asset": "6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d", "n": 2, "scriptPubKey": { "asm": "", "hex": "", "type": "fee" } } ] } Also the blockstream.info blockexplorer shows the amount as hidden: https://blockstream.info/liquid/tx/8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be Version v3.14.1.23-72ae7d304 I quickly scrolled through the code but couldn't yet find the problem. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#535>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AFgC0wObRwr07r_YLaXLHW7n10P7NgDMks5vZ4nNgaJpZM4cFh2n> .

[lclc]

Sorry, I was confused for a moment. The amount is shown there.

[instagibbs]

See "assetamount"

…

On Sun, Mar 24, 2019, 10:23 AM Greg Sanders ***@***.***> wrote: The blinding is on the issuance side(or not). I see 42 of the asset? On Sun, Mar 24, 2019, 10:21 AM Lucas Betschart ***@***.***> wrote: > When using the issueasset RPC method > <https://github.com/ElementsProject/elementsbp-api-reference/blob/master/api.md#issueasset> > with the blinding parameter (parameter #3 > <#3>) set to false the > issuance transaction should have the issuance amount public visible, but it > isn't. > > *What behavior did you expect?* > That the amount of issued tokens is visible for other nodes (the > transaction isn't blinded). > > *How reliably can you reproduce the issue, what are the steps to do so?* > This happens everytime. > > Example: > ***@***.***:~$ ./liquid-cli issueasset 42 0 false { "txid": > "8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be", "vin": > 0, "entropy": > "28ea6b183fff47dd5f5c65ea20c1559ae57fb8de2900f2fffbfc4af021128624", > "asset": > "9cf578635538d5f5151727f194c825a39b3057a4b1c7b906b4c4046ae79b2f92", > "token": "b10fde25c230cda4433ca2aaa4453bcbab7fd4a077f5aaaab965cf9a527ff19b" > } > > getrawtransactions shows that the amount is blinded: > > { > "hex": "...", > "txid": "8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be", > "hash": "e61e6208a8c6994878741350fbb478a6b8a52f38b2f565e0ebaddb36042f4e3a", > "withash": "9c1ad5aca7cd11817f191ce50f3f7cbd64a2602023d28b268155c189c7b3f4a5", > "size": 6524, > "vsize": 2026, > "version": 2, > "locktime": 230304, > "vin": [ > { > "txid": "0e545cac1caae31a8771bda59ffbca27484b2766a6f104606307c02bb13099ea", > "vout": 1, > "scriptSig": { > "asm": "3044022024dc83992cbd9ff7ff426730597adc9b82f3129a006988759f876282ffde4dc202202e56a42a3d53a08d84dfd88896246c362307706f394747c1704dbdcdb4bc091a[ALL] 033e8175ee3924eaa52c1fdf567f0345ffb005f4656e1c3adfcacd0b21656053a1", > "hex": "473044022024dc83992cbd9ff7ff426730597adc9b82f3129a006988759f876282ffde4dc202202e56a42a3d53a08d84dfd88896246c362307706f394747c1704dbdcdb4bc091a0121033e8175ee3924eaa52c1fdf567f0345ffb005f4656e1c3adfcacd0b21656053a1" > }, > "is_pegin": false, > "scriptWitness": [ > ], > "pegin_witness": [ > ], > "issuance": { > "assetBlindingNonce": "0000000000000000000000000000000000000000000000000000000000000000", > "assetEntropy": "28ea6b183fff47dd5f5c65ea20c1559ae57fb8de2900f2fffbfc4af021128624", > "isreissuance": false, > "token": "b10fde25c230cda4433ca2aaa4453bcbab7fd4a077f5aaaab965cf9a527ff19b", > "asset": "9cf578635538d5f5151727f194c825a39b3057a4b1c7b906b4c4046ae79b2f92", > "assetamount": 42.00000000 > }, > "sequence": 4294967294 > } > ], > "vout": [ > { > "value-minimum": 0.00000001, > "value-maximum": 687.19476736, > "ct-exponent": 0, > "ct-bits": 36, > "amountcommitment": "08011db5851805572d0ed358d90ad00ee290ec560c0caeeb9703a3a896dc4d52e1", > "assetcommitment": "0a11560906ac83bd115681a2230b652f4ca8b3d9a263bc8f8350ed25fbe520228e", > "n": 0, > "scriptPubKey": { > "asm": "OP_DUP OP_HASH160 c86ec572663a002bbad77484177c6074e0a1ea8c OP_EQUALVERIFY OP_CHECKSIG", > "hex": "76a914c86ec572663a002bbad77484177c6074e0a1ea8c88ac", > "reqSigs": 1, > "type": "pubkeyhash", > "addresses": [ > "QFYAy5a85ni1FDVuUwREqega33Ngu9VhMk" > ] > } > }, > { > "value-minimum": 0.00000001, > "value-maximum": 687.19476736, > "ct-exponent": 0, > "ct-bits": 36, > "amountcommitment": "08ec15cc38ad11db252e5babd6ee72a9206351871b9da030211d091df6ff460ae6", > "assetcommitment": "0b634512d2be57f256b2285f52d6264b2ab8c049adc96c459e418ca746fe7609f9", > "n": 1, > "scriptPubKey": { > "asm": "OP_DUP OP_HASH160 8e3aca803163707843ad60c0be724eba9515077f OP_EQUALVERIFY OP_CHECKSIG", > "hex": "76a9148e3aca803163707843ad60c0be724eba9515077f88ac", > "reqSigs": 1, > "type": "pubkeyhash", > "addresses": [ > "QAERWJTWvFimRJTXzrNWuThiMkr3BqGYir" > ] > } > }, > { > "value": 0.00002027, > "asset": "6f0279e9ed041c3d710a9f57d0c02928416460c4b722ae3457a11eec381c526d", > "n": 2, > "scriptPubKey": { > "asm": "", > "hex": "", > "type": "fee" > } > } > ] > } > > Also the blockstream.info blockexplorer shows the amount as hidden: > https://blockstream.info/liquid/tx/8b6211b69758d5d2715c2a10fe5bbbdc596691538ff52901ddf6ba1baaff16be > > Version v3.14.1.23-72ae7d304 > > I quickly scrolled through the code but couldn't yet find the problem. > > — > You are receiving this because you are subscribed to this thread. > Reply to this email directly, view it on GitHub > <#535>, or mute the > thread > <https://github.com/notifications/unsubscribe-auth/AFgC0wObRwr07r_YLaXLHW7n10P7NgDMks5vZ4nNgaJpZM4cFh2n> > . >

[instagibbs]

Right. The raw API let's you send it to an unblinded output but it's not so useful from an auditing perspective.

…

On Sun, Mar 24, 2019, 10:23 AM Lucas Betschart ***@***.***> wrote: Closed #535 <#535>. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#535 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AFgC0zUNdk4lwMYdTrlXQxziZ4P0jDVeks5vZ4pngaJpZM4cFh2n> .