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(Visual FoxPro) RSASSA-PSS Algorithm with SHA256 HashingRSA encrypt a SHA256 hash with OAEP padding. Note: This example requires Chilkat v11.0.0 or greater.
LOCAL lnSuccess LOCAL loPrivkey LOCAL loRsa LOCAL lcSigStr lnSuccess = 0 * This example requires the Chilkat API to have been previously unlocked. * See Global Unlock Sample for sample code. loPrivkey = CreateObject('Chilkat.PrivateKey') * Load the private key object from a PEM file. * (To load from a PEM string, call LoadPem instead.) lnSuccess = loPrivkey.LoadPemFile("somePath/myPrivateKey.pem") IF (lnSuccess = 0) THEN ? loPrivkey.LastErrorText RELEASE loPrivkey CANCEL ENDIF loRsa = CreateObject('Chilkat.Rsa') * Use RSA-PSS by setting OaepPadding = 1 loRsa.OaepPadding = 1 * Use SHA256 loRsa.OaepHash = "SHA-256" loRsa.UsePrivateKey(loPrivkey) * Generate a base64 signature. loRsa.EncodingMode = "base64" lcSigStr = loRsa.SignStringENC("String to be signed","SHA-256") IF (loRsa.LastMethodSuccess = 0) THEN ? loRsa.LastErrorText RELEASE loPrivkey RELEASE loRsa CANCEL ENDIF ? "Signature: " + lcSigStr RELEASE loPrivkey RELEASE loRsa |
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