@ndn/keychain-cli
NDNts: KeyChain management
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@ndn/keychain-cli

This package is part of NDNts, Named Data Networking libraries for the modern web.

ndntssec is a command line utility to access an NDNts persistent KeyChain.

NDNTS_KEYCHAIN environment variable specifies location of the KeyChain. If missing, the command will operate on a temporary in-memory KeyChain, which is not particularly useful.

NDNts does not provide a "default" KeyChain, because it is unsafe to access the same KeyChain from multiple processes simultaneously.

ndntssec list-keys: List Keys

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec list-keys

This command prints a list of key names to standard output.

ndntssec gen-key: Generate Key

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec gen-key /A
NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec gen-key /A --type ec --curve P-384
NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec gen-key /A --type rsa --modulus-length 1024
  • The name can either be a subject name (called "identity" in other tools), or a key name.
  • --type specifies key type: "ec" or "rsa".
  • --curve specifies ECDSA curve: "P-256", "P-384", or "P-521".
  • --modulus-length specifies RSA modulus length: 1024, 2048, 4096.
  • Default is ECDSA key with P-256 curve.

This command adds a self-signed certificate to the KeyChain, and prints the certificate name to stdout. You may retrieve the self-signed certificate with ndntssec show-cert command.

ndntssec list-certs: List Certificates

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec list-certs

This command prints a list of certificate names to standard output.

ndntssec show-cert: Show Certificate

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec show-cert /A/KEY/36=%00%05%96%BA%2C%A5%89%F8/self/35=%00%00%01nD%24%01%87

This command prints the specified certificate in Base64 format to standard output.

ndntssec issue-cert: Issue Certificate

NDNTS_KEYCHAIN=/tmp/issuer-keychain ndntssec issue-cert --issuer /B --issuer-id B --valid-days 72 < A-request.cert > A.cert

This command reads a certificate request (self-signed certificate) in Base64 format from standard input, signs (issues) a certificate to the public key enclosed in the certificate request, and prints the issued certificate in Base64 format to standard output.

  • --issuer specifies name prefix of a private key that signs (issues) the certificate. Default is any available key in the KeyChain.
  • --issuer-id specifies the IssuerId name component. Default is an empty component.
  • --valid-days specifies certificate ValidityPeriod in days from now. Default is 30 days.

Example:

$ NDNTS_KEYCHAIN=/tmp/issuer ndntssec gen-key /issuer
/issuer/KEY/36=%00%05%96%BAy%B2%60%90/self/35=%00%00%01nD7%BB%12

$ NDNTS_KEYCHAIN=/tmp/user ndntssec gen-key /user
/user/KEY/36=%00%05%96%BAz%FCl%C0/self/35=%00%00%01nD8%0F%8E

$ NDNTS_KEYCHAIN=/tmp/user ndntssec show-cert /user/KEY/36=%00%05%96%BAz%FCl%C0/self/35=%00%00%01nD8%0F%8E \
  | NDNTS_KEYCHAIN=/tmp/issuer ndntssec issue-cert --issuer /issuer --issuer-id master --valid-days 72 \
  | NDNTS_KEYCHAIN=/tmp/user ndntssec add-cert

$ NDNTS_KEYCHAIN=/tmp/user ndntssec list-certs
/user/KEY/36=%00%05%96%BAz%FCl%C0/self/35=%00%00%01nD8%0F%8E
/user/KEY/36=%00%05%96%BAz%FCl%C0/master/35=%00%00%01nD9L%05
  1. Generate /issuer key in issuer's KeyChain.
  2. Generate /user key in user's KeyChain.
  3. Show /user certificate request, have it signed by /issuer, and add the issued certificate to user's KeyChain.
  4. Display certificates in user's KeyChain.

ndntssec add-cert: Add Certificate

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec add-cert < A.cert

This command reads a certificate in Base64 format from standard input, and saves it in the KeyChain. The corresponding key must exist in the KeyChain.

ndntssec delete: Delete Keys and Certificates

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec delete /A

This command deletes keys and certificates under a name prefix.

ndntssec import-safebag: Import ndn-cxx SafeBag

ndnsec export -i /subject -P 888888 | NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec import-safebag --passphrase 888888

This command reads a ndn-cxx SafeBag object in Base64 format from standard input, and saves the enclosed private key, public key, and certificate in the KeyChain.

ndntssec import-ndnsec: Import ndn-cxx KeyChain via ndnsec

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec import-ndnsec

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec import-ndnsec --prefix /subject

This command copies keys and certificates from ndn-cxx KeyChain using ndnsec executable, and prints imported key names to standard output.

  • --prefix limits key names to be under a prefix. Default is importing all keys.

See @ndn/ndnsec package for more information.

ndntssec ndncert-client: Request Certificate from NDNCERT CA

nfd-start
ndn-autoconfig
ndnpeek -p /ndn/edu/ucla/yufeng/CA/_PROBE/INFO > ndncert-ucla.json

NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec ndncert-client --type ec --curve P-384 --ca ndncert-ucla.json --valid-days 10 --verbose
NDNTS_KEYCHAIN=/tmp/my-keychain ndntssec ndncert-client --ndnsec --ca ndncert-ucla.json

This command requests a certificate from NDNCERT certificate authority, and prints certificate name to standard output.

  • --ca specifies NDNCERT CA config file. This argument is required.
  • --verbose enables NDNCERT client logging.
  • --type, --curve, and --modulus-length specify crypto key properties. They are same as ndntssec gen-key command.
  • --valid-days specifies certificate ValidityPeriod. It is same as ndntssec issue-cert command.
  • --ndnsec generates key pair and saves certificate in ndn-cxx KeyChain using ndnsec executable. The crypto key is RSA-2048; --type, --curve, and --modulus-length are ignored.

This command by default connects to local NFD forwarder. You may setup a different uplink using NDNTS_UPLINK environment variable, as explained in @ndn/cli-common documentation.

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