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Create PKCS1 RSA Signature with PEM Private KeyDemonstrates how to load a private key from a PEM file and create a PKCS1 RSA digital signature. require 'chilkat' pkey = Chilkat::CkPrivateKey.new() # Load the private key from an RSA PEM file: pkey.LoadPemFile("pvkey2_rsa.pem") # Get the private key in XML format: pkeyXml = pkey.getXml() rsa = Chilkat::CkRsa.new() # Any string argument automatically begins the 30-day trial. success = rsa.UnlockComponent("30-day trial") if (success != true) print "RSA component unlock failed" + "\n" exit end # Import the private key into the RSA component: success = rsa.ImportPrivateKey(pkeyXml) if (success != true) print rsa.lastErrorText() + "\n" exit end # This example will sign a string, and receive the signature # in a hex-encoded string. Therefore, set the encoding mode # to "hex": rsa.put_EncodingMode("hex") strData = "This is the string to be signed." # Sign the string using the sha-1 hash algorithm. # Other valid choices are "md2" and "md5". hexSig = rsa.signStringENC(strData,"sha-1") print hexSig + "\n"; print "Success!" + "\n" |
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