Update cheatsheets

tldr/zerotier-idtool

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# zerotier-idtool
+
+> Create and manipulate ZeroTier identities.
+> More information: <https://github.com/zerotier/ZeroTierOne/blob/dev/doc/zerotier-idtool.1.md>.
+
+- Generate a new ZeroTier identity and output the secret part to `stdout`:
+
+`zerotier-idtool generate`
+
+- Generate a new ZeroTier identity and save the secret and public parts to files:
+
+`zerotier-idtool generate {{path/to/identity.secret}} {{path/to/identity.public}}`
+
+- Generate a new ZeroTier identity with a specific hexadecimal vanity prefix (can take a long time):
+
+`zerotier-idtool generate {{path/to/identity.secret}} {{path/to/identity.public}} {{vanity_prefix}}`
+
+- Extract the public portion from a secret identity:
+
+`zerotier-idtool getpublic {{path/to/identity.secret}}`
+
+- Sign a file using a secret identity:
+
+`zerotier-idtool sign {{path/to/identity.secret}} {{path/to/file}}`
+
+- Verify a signed file using a public identity and a hexadecimal signature:
+
+`zerotier-idtool verify {{path/to/identity.public}} {{path/to/file}} {{signature_hex}}`
+
+- Locally validate an identity's key and proof of work:
+
+`zerotier-idtool validate {{path/to/identity.public}}`
+
+- Display help:
+
+`zerotier-idtool help`