RSA OAEP Padding

Demonstrates how to use OAEP padding with the RSA encryption algorithm. More information about OAEP Padding.

Download Chilkat RSA Public-Key Encryption ActiveX

LOCAL loRsa
LOCAL lnSuccess
LOCAL lcPublicKey
LOCAL lcPlainText
LOCAL lnUsePrivateKey
LOCAL lcEncryptedStr

loRsa = CreateObject('Chilkat.Rsa')

lnSuccess = loRsa.UnlockComponent("Anything for 30-day trial")
IF (lnSuccess <> 1) THEN
    =MESSAGEBOX("RSA component unlock failed")
    QUIT
ENDIF

*  RSA public key in XML format:

lcPublicKey = "<RSAKeyValue><Modulus>of3im3mRgd2NLXIGoK6uYLg6jj0Ug2b42rnqa5Tbwz2ieFqMJqt+++x2oqLYGurlz49nt+7/785g3XYWqoka4u9c9zul6YubIjnBM72dQy7rEkEfbUxgjcxqXyjZFx+FpaxFUecLu688XEu+9UA42VKiCgcl+E7TrqnfeeYpNXc=</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>"

loRsa.ImportPublicKey(lcPublicKey)

*  To use Optimal Asymmetric Encryption Padding (OAEP) padding,
*  simply set the OaepPadding property:
loRsa.OaepPadding = 1

*  Encrypt a string and return the encrypted data base64-encoded:
loRsa.EncodingMode = "base64"

lcPlainText = "RSA Encryption should be easy."

lnUsePrivateKey = 0

lcEncryptedStr = loRsa.EncryptStringENC(lcPlainText,lnUsePrivateKey)
? lcEncryptedStr