Tcl

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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Tcl


load ./chilkat.dll

set success 0

#  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.

set pubKey [new_CkPublicKey]

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

set success [CkPublicKey_LoadFromString $pubKey $keyText]
if {$success == 0} then {
    puts [CkPublicKey_lastErrorText $pubKey]
    delete_CkPublicKey $pubKey
    exit
}

puts "Loaded a [CkPublicKey_keyType $pubKey] public key."

delete_CkPublicKey $pubKey