(Lianja) RSA Sign utf-8 Byte Representation of String

Demontstrates how to sign the utf-8 byte representation of a string.

Note: This example requires Chilkat v11.0.0 or greater.

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llSuccess = .F.

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Load an RSA private key for signing.
loPrivKey = createobject("CkPrivateKey")
llSuccess = loPrivKey.LoadEncryptedPemFile("qa_data/pem/rsa_passwd.pem","passwd")
if (llSuccess = .F.) then
    ? loPrivKey.LastErrorText
    release loPrivKey
    return
endif

loRsa = createobject("CkRsa")
llSuccess = loRsa.UsePrivateKey(loPrivKey)
if (llSuccess = .F.) then
    ? loRsa.LastErrorText
    release loPrivKey
    release loRsa
    return
endif

lcOriginalData = "This is the string to be hashed an RSA signed."

// Indicate that we want the utf-8 byte representation of the string to be signed
loRsa.Charset = "utf-8"

// We want the RSA signature in base64 format
loRsa.EncodingMode = "base64"

lcSigBase64 = loRsa.SignStringENC(lcOriginalData,"sha256")
? lcSigBase64


release loPrivKey
release loRsa