Questions tagged [masked-authenticated-messaging]

Tag for Questions on Implementation and technical background of masked authenticated messaging (MAM), as well as for using it in Sensors or other Applications. Also general Usage.

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How to sign a data transaction?

I am wondering if it is possible to sign a data transaction, i.e. generate a signed bundle whose inputs have a balance of 0. If so, how could I construct such a bundle? I am asking because I would ...
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5 votes
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243 views

MAM message encryption

According to the documentation message encryption is done in following way Each message is encrypted with a one-time pad that consists of the channel ID and the index of the key used to sign the ...
  • 263
4 votes
0 answers
116 views

How to setup Full Node with IXI MAM?

I have mounted some Full Nodes and wrote a post in Hello IOTA Forum with a tutorial to do this from scratch. Now I am looking for info to setup a Full Node with MAM support. I have been searching and ...
4 votes
0 answers
88 views

What's the size of the Merkle Tree of Masked Authenticated Messaging?

Based on the current source code of the client it looks like the Merkle Tree can have only one key. Am I right? The questions: How many keys does the Merkle Tree have in general? What does it ...
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4 votes
0 answers
70 views

What code was used and are there any examples of code available to develop the MAM on the XDK and RuuviTag for the Tangle?

There have been reports of MAM being implemented and sent to the Tangle using the Bosch XDK and the RuuviTag. What code was used and are there any examples of code available to develop the MAM on the ...
3 votes
0 answers
105 views

Is MAM encrypted message has perfect secrecy?

Here I am referring to MAM in restricted mode, where side key is used to encrypt the message. One time pad is known for perfect secrecy. Since MAM uses the one-time pad, is MAM encrypted message has ...
  • 263
3 votes
0 answers
55 views

MAM: Is the bundle, used to create masked payload signature, not normalized?

I am researching how Masked Authenticated Messaging (MAM) works. The masked_payload is created in the create function in file: https://github.com/iotaledger/MAM/blob/master/mam/src/mam.rs ...
3 votes
0 answers
213 views

Building the mam.client.js (actually the iota-bindings)

I am trying to build according to the instructions given: https://github.com/iotaledger/mam.client.js There are a whole lot of other steps then just described there which mainly relate to building ...
1 vote
0 answers
116 views

How to attach a message multiple times (say 200 times) with the tangle using MAM

What I am trying to do is to attach a payload to the tangle using MAM protocol. If I run this loop for k=5 times it works fine i.e., data is attached to the Tangle. I confirmed that the data is ...
1 vote
1 answer
150 views

How can I fork MAM channel?

This https://blog.iota.org/introducing-masked-authenticated-messaging-e55c1822d50e says that any channel can be splitting. Also this https://medium.com/coinmonks/iota-mam-eloquently-explained-...
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1 vote
0 answers
50 views

Unique SideKey for each individual message in Restricted mode

Is it possible to have a unique secret key for each new message added to the channel in restricted mode? If yes, How we can achieve it? Desired Scenario: Different Messages having different SideKeys ...
0 votes
1 answer
127 views

How to publish messages using MAM to my private tangle?

I have a private tangle with 2 hornet nodes. I tried MAM using one of the devnet nodes by following the example on the official IOTA webpage. Can someone please tell me how do I publish and fetch ...
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