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(PowerBuilder) RSA Encrypt and Decrypt StringsSee more RSA ExamplesPowerBuilder sample code to RSA public-key encrypt and decrypt strings using public and private keys.Note: This example requires Chilkat v11.0.0 or greater.
integer li_rc integer li_Success oleobject loo_Rsa oleobject loo_PrivKey oleobject loo_PubKey string ls_PlainText oleobject loo_RsaEncryptor integer li_UsePrivateKey string ls_EncryptedStr oleobject loo_RsaDecryptor string ls_DecryptedStr li_Success = 0 // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. loo_Rsa = create oleobject li_rc = loo_Rsa.ConnectToNewObject("Chilkat.Rsa") if li_rc < 0 then destroy loo_Rsa MessageBox("Error","Connecting to COM object failed") return end if // This example also generates the public and private // keys to be used in the RSA encryption. // Normally, you would generate a key pair once, // and distribute the public key to your partner. // Anything encrypted with the public key can be // decrypted with the private key. The reverse is // also true: anything encrypted using the private // key can be decrypted using the public key. // Generate a 2048-bit key. Chilkat RSA supports // key sizes ranging from 512 bits to 4096 bits. loo_PrivKey = create oleobject li_rc = loo_PrivKey.ConnectToNewObject("Chilkat.PrivateKey") li_Success = loo_Rsa.GenKey(2048,loo_PrivKey) if li_Success = 0 then Write-Debug loo_Rsa.LastErrorText destroy loo_Rsa destroy loo_PrivKey return end if loo_PubKey = create oleobject li_rc = loo_PubKey.ConnectToNewObject("Chilkat.PublicKey") loo_PrivKey.ToPublicKey(loo_PubKey) ls_PlainText = "Encrypting and decrypting should be easy!" // Start with a new RSA object to demonstrate that all we // need are the keys previously exported: loo_RsaEncryptor = create oleobject li_rc = loo_RsaEncryptor.ConnectToNewObject("Chilkat.Rsa") // Encrypted output is always binary. In this case, we want // to encode the encrypted bytes in a printable string. // Our choices are "hex", "base64", "url", "quoted-printable". loo_RsaEncryptor.EncodingMode = "hex" // We'll encrypt with the public key and decrypt with the private // key. li_Success = loo_RsaEncryptor.UsePublicKey(loo_PubKey) li_UsePrivateKey = 0 ls_EncryptedStr = loo_RsaEncryptor.EncryptStringENC(ls_PlainText,li_UsePrivateKey) Write-Debug ls_EncryptedStr // Now decrypt: loo_RsaDecryptor = create oleobject li_rc = loo_RsaDecryptor.ConnectToNewObject("Chilkat.Rsa") loo_RsaDecryptor.EncodingMode = "hex" li_Success = loo_RsaDecryptor.UsePrivateKey(loo_PrivKey) li_UsePrivateKey = 1 ls_DecryptedStr = loo_RsaDecryptor.DecryptStringENC(ls_EncryptedStr,li_UsePrivateKey) Write-Debug ls_DecryptedStr destroy loo_Rsa destroy loo_PrivKey destroy loo_PubKey destroy loo_RsaEncryptor destroy loo_RsaDecryptor |
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