Lianja

Load a Private Key from BinData (Any Format)

Demonstrates the Chilkat PrivateKey.LoadAnyFormat method, which loads a private key by inspecting the bytes in a BinData. The first argument is the BinData and the second is the password (used if the detected key is encrypted).

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own key file.

Background: When you have key bytes in memory but do not know their exact format — downloaded, decrypted, or pulled from a database — this figures it out for you, recognizing PKCS #1/#8 DER, encrypted PKCS #8, PEM, JWK, Chilkat XML, Microsoft formats, and more. It removes the guesswork of choosing a specific loader, at the small cost of the detection step. Supply the password so it can decrypt an encrypted key without a second call.

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llSuccess = .F.

//  Demonstrates the PrivateKey.LoadAnyFormat method, which loads a private key by inspecting the
//  bytes in a BinData.  The 1st argument is the BinData and the 2nd is the password (used if the
//  detected key is encrypted).

loBd = createobject("CkBinData")
llSuccess = loBd.LoadFile("qa_data/some_private_key")
if (llSuccess = .F.) then
    ? loBd.LastErrorText
    release loBd
    return
endif

loPrivKey = createobject("CkPrivateKey")

//  The key password is not hard-coded in a real application; obtain it from an interactive
//  prompt, environment variable, or a secrets vault.
lcPassword = "myKeyPassword"

//  Chilkat auto-detects the representation: PKCS #1/#8 DER, encrypted PKCS #8, PEM, JWK,
//  Chilkat XML, Microsoft formats, and more.
llSuccess = loPrivKey.LoadAnyFormat(loBd,lcPassword)
if (llSuccess = .F.) then
    ? loPrivKey.LastErrorText
    release loBd
    release loPrivKey
    return
endif

? "Loaded a " + loPrivKey.KeyType + " private key."


release loBd
release loPrivKey