Tool to sign data with a Cardano-Secret-Key // verify data with a Cardano-Public-Key // generate CIP-8 & CIP-36 data

Related tags

Learning resource signing delegation signature verification registration ed25519 public-key catalyst secret-key cardano cip-8 cip-36 vote-public-key
Overview

Tool to sign data with a Cardano-Secret-Key // verify data with a Cardano-Public-Key // generate CIP-8 & CIP-36 data

What can cardano-signer sign?

  • Sign any hexdata, textdata or binaryfile with a provided normal or extended secret key. The key can be provided in hex, bech or file format. The signing output is a signature in hex- or json-format, also the public key of the provided secret key for verification.
  • Sign payloads in CIP-8 mode. The signing output is a signature in hex format and also the public key of the provided secret key for verification. The output can also be set to be in json format which will also show additional data (--json-extended).
  • Generate and sign Catalyst registration/delegation metadata cbor in CIP-36 mode. This also includes relatively weighted voting power delegation. The output is the registration/delegation data in json or cborHex-format and/or a binary cbor file, which can be transmitted on chain as it is.

What can cardano-signer verify?

  • Verify a signature for any hexdata, textdata or binaryfile together with a provided public key. The key can be provided in hex, bech or file format. The verification output is true(exitcode=0) or false(exitcode=1) as a console output or in json-format.


Usage

" | --data "" | --data-file "" data/payload/file to sign in hex-, text- or binary-file-format --secret-key "||" path to a signing-key-file or a direct signing hex/bech-key string [--json | --json-extended] optional flag to generate output in json/json-extended format [--out-file ""] path to an output file, default: standard-output Output: "signature_hex + publicKey_hex" or JSON-Format Signing a payload in CIP-8 mode: Syntax: cardano-signer sign --cip8 Params: --data-hex "" | --data "" | --data-file "" data/payload/file to sign in hex-, text- or binary-file-format --secret-key "||" path to a signing-key-file or a direct signing hex/bech-key string --address "" signing address (bech format like 'stake1_...') [--json | --json-extended] optional flag to generate output in json/json-extended format [--out-file ""] path to an output file, default: standard-output Output: "signature_hex + publicKey_hex" or JSON-Format Signing a catalyst registration/delegation in CIP-36 mode: Syntax: cardano-signer sign --cip36 Params: --vote-public-key "||" public-key-file or public hex/bech-key string to delegate the votingpower to --vote-weight relative weight of the delegated votingpower, default: 1 (=100% for single delegation) [--vote-public-key "||" additional public-key-file(s) or public hex/bech-key string(s) to delegate the votingpower to --vote-weight ] additional relative weight(s) of the delegated votingpower, default: 1 (=100% for single delegation) --secret-key "||" signing-key-file or a direct signing hex/bech-key string of the stake key (votingpower) --rewards-address "" rewards stake address (bech format like 'stake1_...') --nonce nonce value, this is typically the slotheight(tip) of the chain [--vote-purpose ] optional parameter (unsigned int), default: 0 (catalyst) [--json | --json-extended] optional flag to generate output in json/json-extended format, default: cborHex [--out-file ""] path to an output file, default: standard-output [--out-cbor ""] path to write a binary metadata.cbor file to Output: Registration-Metadata in JSON-, cborHex-, cborBinary-Format Verifying a hex/text-string or a binary-file(data) via signature + publicKey: Syntax: cardano-signer verify Params: --data-hex "" | --data "" | --data-file "" data/payload/file to verify in hex-, text- or binary-file-format --signature "" signature in hexformat --public-key "||" path to a public-key-file or a direct public hex/bech-key string [--json | --json-extended] optional flag to generate output in json/json-extended format [--out-file ""] path to an output file, default: standard-output Output: "true/false" (exitcode 0/1) or JSON-Format "> 
$ ./cardano-signer help

cardano-signer 1.7.0

Signing a hex/text-string or a binary-file:

   Syntax: cardano-signer sign
   Params: --data-hex "" | --data "" | --data-file ""
                                                                data/payload/file to sign in hex-, text- or binary-file-format
           --secret-key "||"           path to a signing-key-file or a direct signing hex/bech-key string
           [--json | --json-extended]                           optional flag to generate output in json/json-extended format
           [--out-file ""]                        path to an output file, default: standard-output
   Output: "signature_hex + publicKey_hex" or JSON-Format


Signing a payload in CIP-8 mode:

   Syntax: cardano-signer sign --cip8
   Params: --data-hex "" | --data "" | --data-file ""
                                                                data/payload/file to sign in hex-, text- or binary-file-format
           --secret-key "||"           path to a signing-key-file or a direct signing hex/bech-key string
           --address ""                           signing address (bech format like 'stake1_...')
           [--json | --json-extended]                           optional flag to generate output in json/json-extended format
           [--out-file ""]                        path to an output file, default: standard-output
   Output: "signature_hex + publicKey_hex" or JSON-Format


Signing a catalyst registration/delegation in CIP-36 mode:

   Syntax: cardano-signer sign --cip36
   Params: --vote-public-key "||"      public-key-file or public hex/bech-key string to delegate the votingpower to
           --vote-weight                          relative weight of the delegated votingpower, default: 1 (=100% for single delegation)
           [--vote-public-key "||"     additional public-key-file(s) or public hex/bech-key string(s) to delegate the votingpower to
           --vote-weight ]                        additional relative weight(s) of the delegated votingpower, default: 1 (=100% for single delegation)
           --secret-key "||"           signing-key-file or a direct signing hex/bech-key string of the stake key (votingpower)
           --rewards-address ""                   rewards stake address (bech format like 'stake1_...')
           --nonce                                nonce value, this is typically the slotheight(tip) of the chain
           [--vote-purpose ]                      optional parameter (unsigned int), default: 0 (catalyst)
           [--json | --json-extended]                           optional flag to generate output in json/json-extended format, default: cborHex
           [--out-file ""]                        path to an output file, default: standard-output
           [--out-cbor ""]                        path to write a binary metadata.cbor file to
   Output: Registration-Metadata in JSON-, cborHex-, cborBinary-Format


Verifying a hex/text-string or a binary-file(data) via signature + publicKey:

   Syntax: cardano-signer verify
   Params: --data-hex "" | --data "" | --data-file ""
                                                                data/payload/file to verify in hex-, text- or binary-file-format
           --signature ""                                  signature in hexformat
           --public-key "||"           path to a public-key-file or a direct public hex/bech-key string
           [--json | --json-extended]                           optional flag to generate output in json/json-extended format
           [--out-file ""]                        path to an output file, default: standard-output
   Output: "true/false" (exitcode 0/1) or JSON-Format

image



Examples

Signing (defaultmode)

### SIGN HEXDATA OR TEXTDATA WITH A KEY-HEXSTRING

$ cardano-signer sign \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --secret-key "c14ef0cc5e352446d6243976f51e8ffb2ae257f2a547c4fba170964a76501e7a"
      
ca3ddc10f845dbe0c22875aaf91f66323d3f28e265696dcd3c56b91a8e675c9e30fd86ba69b9d1cf271a12f7710c9f3385c78cbf016e17e1df339bea8bd2db03 9be513df12b3fabe7c1b8c3f9fab0968eb2168d5689bf981c2f7c35b11718b27

$ cardano-signer sign \
      --out-file mySignature.txt \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --secret-key "c14ef0cc5e352446d6243976f51e8ffb2ae257f2a547c4fba170964a76501e7a"
#Signature+publicKey was written to the file mySignature.txt

$ cardano-signer sign \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --secret-key "c14ef0cc5e352446d6243976f51e8ffb2ae257f2a547c4fba170964a"
Error: Invalid normal secret key

$ cardano-signer sign \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --secret-key "c14ef0cc5e352446d6243976f51e8ffb2ae257f2a547c4fba170964a76501e7a88afe88fa8f888544e6f5a5f555e5faf6f6f"
Error: Invalid extended secret key

### SIGN HEXDATA OR TEXTDATA WITH A KEY-FILE

$ cardano-signer sign \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --secret-key owner.staking.skey
      
ca3ddc10f845dbe0c22875aaf91f66323d3f28e265696dcd3c56b91a8e675c9e30fd86ba69b9d1cf271a12f7710c9f3385c78cbf016e17e1df339bea8bd2db03 9be513df12b3fabe7c1b8c3f9fab0968eb2168d5689bf981c2f7c35b11718b27

$ cardano-signer sign \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --secret-key owner.staking.vkey
Error: The file 'owner.staking.vkey' is not a signing/secret key json

### SIGN A FILE WITH A KEY-FILE

$ cardano-signer sign --data-file test.txt --secret-key test.skey

caacb18c46319f55b932efa77357f14b66b27aa908750df2c91800dc59711015ea2e568974ac0bcabf9b1c4708b877c2b94a7658c2dcad78b108049062572e09 57758911253f6b31df2a87c10eb08a2c9b8450768cb8dd0d378d93f7c2e220f0

Signing (CIP-8 mode)

### SIGN TEXTDATA IN CIP-8 MODE

$ cardano-signer sign --cip8 \
      --address "stake_test1uqt3nqapz799tvp2lt8adttt29k6xa2xnltahn655tu4sgc6asaqg" \
      --data '{"choice":"Yes","comment":"","network":"preview","proposal":"2038c417d112e005ef61c95d710ee62184a6c177d18b2da891f97cefae4f8535","protocol":"SundaeSwap","title":"Test Proposal - Tampered","version":"1","votedAt":"3137227","voter":"stake_test1uqt3nqapz799tvp2lt8adttt29k6xa2xnltahn655tu4sgc6asaqg"}' \
      --secret-key myStakeKey.skey
      
5b2e7ac3fbe3cec1540f98fcc29c1ab63778e14a653a2328b2e56af6fd2a714540708e5f3e19670b9b867151c7dfb75061c6b94508d88f43ad3b3893ca213506 57758911253f6b31df2a87c10eb08a2c9b8450768cb8dd0d378d93f7c2e220f0

$ cardano-signer sign --cip8 \
	--address "stake_test1uqt3nqapz799tvp2lt8adttt29k6xa2xnltahn655tu4sgc6asaqg" \
	--data '{"choice":"Yes","comment":"","network":"preview","proposal":"2038c417d112e005ef61c95d710ee62184a6c177d18b2da891f97cefae4f8535","protocol":"SundaeSwap","title":"Test Proposal - Tampered","version":"1","votedAt":"3137227","voter":"stake_test1uqt3nqapz799tvp2lt8adttt29k6xa2xnltahn655tu4sgc6asaqg"}' \
	--secret-key myStakeKey.skey \
	--json-extended

{
  "workMode": "sign-cip8",
  "addressHex": "e0171983a1178a55b02afacfd6ad6b516da375469fd7dbcf54a2f95823",
  "inputDataHex": "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",
  "signDataHex": "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",
  "signature": "5b2e7ac3fbe3cec1540f98fcc29c1ab63778e14a653a2328b2e56af6fd2a714540708e5f3e19670b9b867151c7dfb75061c6b94508d88f43ad3b3893ca213506",
  "secretKey": "e8ddb1cfc09e163915e6c28fcb5fbb563bfef57201857e15288b67abbd91e4441e5fa179a8f90da1684ba5aa310da521651d2ce20443f149f8ca9e333a96dabc",
  "publicKey": "57758911253f6b31df2a87c10eb08a2c9b8450768cb8dd0d378d93f7c2e220f0"
}

### SIGN HEXDATA IN CIP-8 MODE

$ cardano-signer sign --cip8 \
      --address "stake_test1uqt3nqapz799tvp2lt8adttt29k6xa2xnltahn655tu4sgc6asaqg" \
      --data-hex "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" \
      --secret-key myStakeKey.skey

5b2e7ac3fbe3cec1540f98fcc29c1ab63778e14a653a2328b2e56af6fd2a714540708e5f3e19670b9b867151c7dfb75061c6b94508d88f43ad3b3893ca213506 57758911253f6b31df2a87c10eb08a2c9b8450768cb8dd0d378d93f7c2e220f0

Signing (CIP-36 mode) - Catalyst Voting Registration / VotingPower Delegation

### REGISTER/DELEGATE TO A SINGLE VOTING-KEY

$ cardano-signer sign --cip36 \
      --rewards-address "stake_test1urqntq4wexjylnrdnp97qq79qkxxvrsa9lcnwr7ckjd6w0cr04y4p" \
      --secret-key ../owner.staking.skey \
      --vote-public-key somevote.vkey \
      --nonce 71948552 \
      --out-cbor catalyst-delegation.cbor

a219ef64a5018182582057758911253f6b31df2a87c10eb08a2c9b8450768cb8dd0d378d93f7c2e220f0010258209be513df12b3fabe7c1b8c3f9fab0968eb2168d5689bf981c2f7c35b11718b2703581de0c13582aec9a44fcc6d984be003c5058c660e1d2ff1370fd8b49ba73f041a0449d908050019ef65a1015840c839244556db17a2df914c7291c891e5abd1bd580de7786d640da9e27983efe86495cbee900eb685c08e367e778bb0860c6e366b9ec715d8fba824ef55c8aa0f

### REGISTER/DELEGATE TO MULTIPLE VOTING-KEYS WITH VOTINGPOWER 10%,20%,70%

$ cardano-signer sign --cip36 \
      --rewards-address "stake_test1urqntq4wexjylnrdnp97qq79qkxxvrsa9lcnwr7ckjd6w0cr04y4p" \
      --secret-key ../owner.staking.skey \
      --vote-public-key ../somevote.vkey \
      --vote-weight 10 \
      --vote-public-key "C2CD50D8A231FBC1444D65ABAB4F6BF74178E6DE64722558EEEF0B73DE293A8A" \
      --vote-weight 20 \
      --vote-public-key "ed25519_pk128c305nw9xh20kearuhcwj447kzlvxdfttkk6uwnrf6qfjm9276svd678w" \
      --vote-weight 70 \
      --nonce 71948552 \
      --out-cbor catalyst-multidelegation.cbor
      
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

$ cardano-signer sign --cip36 \
	--rewards-address "stake_test1urqntq4wexjylnrdnp97qq79qkxxvrsa9lcnwr7ckjd6w0cr04y4p" \
	--secret-key "f5beaeff7932a4164d270afde7716067582412e8977e67986cd9b456fc082e3a" \
	--vote-public-key ../myvote.voting.pkey --vote-weight 1 \
	--vote-public-key martin-test.vkey --vote-weight 5 \
	--nonce 123456789 \
	--json-extended

{
  "workMode": "sign-cip36",
  "registrationCBOR": "a219ef64a5018282582051f117d26e29aea7db3d1f2f874ab5f585f619a95aed6d71d31a7404cb6557b50182582057758911253f6b31df2a87c10eb08a2c9b8450768cb8dd0d378d93f7c2e220f00502582086870efc99c453a873a16492ce87738ec79a0ebd064379a62e2c9cf4e119219e03581de0c13582aec9a44fcc6d984be003c5058c660e1d2ff1370fd8b49ba73f041a075bcd15050019ef65a1015840a97affe866b515f3dadb3038b4ccc58bf689005d417300fbf57d3f17eceb553d7354d919adb59a8b6dc30afb6cdda414812c3ffd4dfceebb15e391a7415bde0d",
  "registrationJSON": {
    "61284": {
      "1": [
        [
          "0x51f117d26e29aea7db3d1f2f874ab5f585f619a95aed6d71d31a7404cb6557b5",
          1
        ],
        [
          "0x57758911253f6b31df2a87c10eb08a2c9b8450768cb8dd0d378d93f7c2e220f0",
          5
        ]
      ],
      "2": "0x86870efc99c453a873a16492ce87738ec79a0ebd064379a62e2c9cf4e119219e",
      "3": "0xe0c13582aec9a44fcc6d984be003c5058c660e1d2ff1370fd8b49ba73f",
      "4": 123456789,
      "5": 0
    },
    "61285": {
      "1": "0xa97affe866b515f3dadb3038b4ccc58bf689005d417300fbf57d3f17eceb553d7354d919adb59a8b6dc30afb6cdda414812c3ffd4dfceebb15e391a7415bde0d"
    }
  },
  "signDataHex": "45d05fca1f25e1a01c375dc2c8896e1fe61619852bbef2b26b4ece433c5bdeb7",
  "signature": "a97affe866b515f3dadb3038b4ccc58bf689005d417300fbf57d3f17eceb553d7354d919adb59a8b6dc30afb6cdda414812c3ffd4dfceebb15e391a7415bde0d",
  "secretKey": "f5beaeff7932a4164d270afde7716067582412e8977e67986cd9b456fc082e3a",
  "publicKey": "86870efc99c453a873a16492ce87738ec79a0ebd064379a62e2c9cf4e119219e"
}

Verification (defaultmode)

### VERIFY HEXDATA or TEXTDATA WITH A SIGNATURE AND A KEY-HEXSTRING

$ cardano-signer verify \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --signature "ca3ddc10f845dbe0c22875aaf91f66323d3f28e265696dcd3c56b91a8e675c9e30fd86ba69b9d1cf271a12f7710c9f3385c78cbf016e17e1df339bea8bd2db03" \
      --public-key "9be513df12b3fabe7c1b8c3f9fab0968eb2168d5689bf981c2f7c35b11718b27"

true

$ cardano-signer verify \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --signature "ca3ddc10f845dbe0c22875aaf91f66323d3f28e265696dcd3c56b91a8e675c9e30fd86ba69b9d1cf271a12f7710c9f3385c78cbf016e17e1df339bea8bd2db03" \
      --public-key "aaaaaaaaaab3fabe7c1b8c3f9fab0968eb2168d5689bf981c2f7c35b11718b27"

false

$ cardano-signer verify \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --signature "aaaaaaaaaa45dbe0c22875aaf91f66323d3f28e265696dcd3c56b91a8e675c9e30fd86ba69b9d1cf271a12f7710c9f3385c78cbf016e17e1df339bea8bd2db03" \
      --public-key "9be513df12b3fabe7c1b8c3f9fab0968eb2168d5689bf981c2f7c35b11718b27"

false

### VERIFY HEXDATA WITH A SIGNATURE AND A KEY-FILE

$ cardano-signer verify \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --signature "ca3ddc10f845dbe0c22875aaf91f66323d3f28e265696dcd3c56b91a8e675c9e30fd86ba69b9d1cf271a12f7710c9f3385c78cbf016e17e1df339bea8bd2db03" \
      --public-key owner.staking.vkey

true

$ cardano-signer verify \
      --data-hex "8f21b675423a65244483506122492f5720d7bd35d70616348089678ed4eb07a9" \
      --signature "ca3ddc10f845dbe0c22875aaf91f66323d3f28e265696dcd3c56b91a8e675c9e30fd86ba69b9d1cf271a12f7710c9f3385c78cbf016e17e1df339bea8bd2db03" \
      --public-key owner.staking.skey
Error: The file 'owner.staking.skey' is not a verification/public key json

### VERIFY A FILE WITH A SIGNATURE AND A KEY-FILE

$ cardano-signer verify --data-file test.txt --public-key test.vkey --signature "caacb18c46319f55b932efa77357f14b66b27aa908750df2c91800dc59711015ea2e568974ac0bcabf9b1c4708b877c2b94a7658c2dcad78b108049062572e09"

true


Release Notes

  • 1.7.0

    • Added JSON and JSON-Extended output format: Default output format is plaintext, using the --json flag generates a JSON output. Using the --json-extended flag generates a JSON output with much more information.
    • In CIP-36 mode, using the new --json flag together with the --out-file parameter generates directly a JSON Format which is compatible to be used as a registration.json metadata with cardano-cli. --out-cbor always generates a binary registration.cbor metadata file, also compatible to be used with cardano-cli.
    • Usage/Help context is now colored for better readability

  • 1.6.1

    • Added new check in CIP-36 mode to avoid duplicated voting_key entries in the delegations. Exits with an error if duplicates are found.

  • 1.6.0

    • New Syntax - Now you can use the parameter --data-file to use any binary file as the data source to sign.
    • Added the function to directly use bech encoded secret and public keys for the signing/verification. You can mix the formats.

  • 1.5.0

    • New CIP-36 mode via parameter --cip36. This enables the new catalyst/governance registration and votingpower (multi-)delegation mode. Output generates a signed cbor file or hex_string.

  • 1.4.0

    • New CIP-8 mode via parameter --cip8. This enables CIP-8 conform payload signing.
    • New Syntax - Now you can use the parameter --data for pure text payloads, and --data-hex for hex-encoded payloads.

  • 1.3.0

    • Now supporting true parameter/flag names.
    • Added new optional --out-file option, which would write the signature+publicKey to a file and not to the standard output.

  • 1.2.0

    • Added support to use Cardano-Key-Files in addition to a direct Key-Hexstring. Supports standard sKey/vKey JSON files and also files with a Bech32-Key in it, like the ones generated via jcli

  • 1.1.0

    • Added functionality to do also a Verification of the Signature together with the data and the Public Key.

  • 1.0.0

    • Initial version, supports signing of a Data-Hexstring string with a Key-Hexstring.


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