NAME

lightning-signmessage -- Command to create a signature from this node

SYNOPSIS

signmessage message

DESCRIPTION

The signmessage RPC command creates a digital signature of message using this node's secret key. A receiver who knows your node's id and the message can be sure that the resulting signature could only be created by something with access to this node's secret key.

•

message (string): Less than 65536 characters long message to be signed by the node.

RETURN VALUE

On success, an object is returned, containing:

• signature (hex) (always 128 characters): The signature.

• recid (hex) (always 2 characters): The recovery id (0, 1, 2 or 3).

• zbase (string): signature and recid encoded in a style compatible with lnd's SignMessageRequest.

AUTHOR

Rusty Russell <rusty@rustcorp.com.au> is mainly responsible.

SEE ALSO

lightning-checkmessage(7)

RESOURCES

Main web site: https://github.com/ElementsProject/lightning

SignMessageRequest

EXAMPLES

Example 1:

Request:

$ lightning-cli signmessage -k "message"="this is a test!"

{


  "id": "example:signmessage#1",


  "method": "signmessage",


  "params": {


    "message": "this is a test!"


  }
}

Response:

{


  "signature": "9ea05929890e40489edbd5fe0552d22bcffe00bbd29da4fcf93ed5d8f1973e421509071a64935231a126637e3615225ddda86d2d0926ae537d9c3be149f9b21f",


  "recid": "00",


  "zbase": "d6xkysjjtr8ry1r65xk9hbk14eih99oyzxjj5j8h9r9pms8t1h9rrfejyhpgjr41ggo1ca56gak1rzq7ibs14njgi3jz58b5hfr9uco9"
}

Example 2:

Request:

$ lightning-cli signmessage -k "message"="message for you"

{


  "id": "example:signmessage#2",


  "method": "signmessage",


  "params": {


    "message": "message for you"


  }
}

Response:

{


  "signature": "8149401781108c1c2fda12d91969bfe2306afe06c387394d47a83a85a14702a16b6fcd0060693da436ff1c2b25cc470d7db68fe45d833733d8dca660a3f4d67d",


  "recid": "00",


  "zbase": "d6yw1oyzoreea8bx5ejp1gmjz9tdy4z6y5baqqkpe6wdibpbehbkn45x3wygy4j7wo5x68bmrzgrqdm7s486ezcdgh37tzfgcnt9jiu7"
}