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Generate Keys

The Flow CLI provides a command to generate ECDSA key pairs that can be [attached to new or existing Flow accounts].


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flow keys generate

danger

⚠️ Store private key safely and don't share with anyone!

Example usage​


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flow keys generate

Example response​


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> flow keys generate
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🔴️ Store Private Key safely and don't share with anyone!
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Private Key c778170793026a9a7a3815dabed68ded445bde7f40a8c66889908197412be89f
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Public Key 584245c57e5316d6606c53b1ce46dae29f5c9bd26e9e8...aaa5091b2eebcb2ac71c75cf70842878878a2d650f7

Flags​

Seed​

  • Flag: --seed
  • Valid inputs: any string with length >= 32

Specify a UTF-8 seed string to use to generate the key pair. Key generation is deterministic, so the same seed will always result in the same key.

If no seed is specified, a random 32-byte seed will generate the key pair.

danger

⚠️ It's dangerous to use seed with production keys if seed wasn't generated with safe random generators.

Signature algorithm​

  • Flag: --sig-algo
  • Valid inputs: "ECDSA_P256", "ECDSA_secp256k1"

Specify the ECDSA signature algorithm for the key pair.

Flow supports the secp256k1 and P-256 curves.

Filter​

  • Flag: --filter
  • Short Flag: -x
  • Valid inputs: a case-sensitive name of the result property.

Specify any property name from the result you want to return as the only value.

Output​

  • Flag: --output
  • Short Flag: -o
  • Valid inputs: json, inline

Specify the format of the command results.

Save​

  • Flag: --save
  • Short Flag: -s
  • Valid inputs: a path in the current filesystem.

Specify the filename where you want the result to be saved

Log​

  • Flag: --log
  • Short Flag: -l
  • Valid inputs: none, error, debug
  • Default: info

Specify the log level. Control how much output you want to see during command execution.

Configuration​

  • Flag: --config-path
  • Short Flag: -f
  • Valid inputs: a path in the current filesystem.
  • Default: flow.json

Specify the path to the flow.json configuration file. You can use the -f flag multiple times to merge several configuration files.

Version check​

  • Flag: --skip-version-check
  • Default: false

Skip version check during start up to speed up process for slow connections.

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