Ruby

Load a Public Key from a String

Demonstrates the Chilkat PublicKey.LoadFromString method, which loads a public key from a string. The only argument is the string. Chilkat examines the content and recognizes PEM public keys, unencrypted PEM private keys (taking only the public portion), XML, JWK, and more.

Background: This is the forgiving text loader: rather than requiring you to know the exact format, it inspects whatever string you provide and figures it out. A useful convenience is that it accepts an unencrypted private key too and keeps only the public half — handy when you have a key pair but need just the public key. Use it whenever the textual format is uncertain or varies by source.

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Ruby

require 'chilkat'

success = false

#  Demonstrates the PublicKey.LoadFromString method, which loads a public key from a string.  The
#  only argument is the string.  Chilkat examines the content and recognizes PEM public keys,
#  unencrypted PEM private keys (using only the public portion), XML, JWK, and more.

pubKey = Chilkat::CkPublicKey.new()

#  The PEM text of a public key.
keyText = "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkq...IDAQAB\n-----END PUBLIC KEY-----"

success = pubKey.LoadFromString(keyText)
if (success == false)
    print pubKey.lastErrorText() + "\n";
    exit
end

print "Loaded a " + pubKey.keyType() + " public key." + "\n";