Go

RSA Encrypt and OpenSSL Decrypt

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Demonstrates how to use Chilkat to RSA encrypt, and then use OpenSSL to decrypt. Go

    success := false

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

    rsa := chilkat.NewRsa()

    privKey := chilkat.NewPrivateKey()
    success = rsa.GenKey(2048,privKey)
    success = privKey.SavePkcs8PemFile("qa_output/privKey.pem")

    pubKey := chilkat.NewPublicKey()
    privKey.ToPublicKey(pubKey)

    rsa.SetEncodingMode("base64")
    plainText := "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890"
    bUsePrivateKey := false
    rsa.UsePublicKey(pubKey)
    encryptedStr := rsa.EncryptStringENC(plainText,bUsePrivateKey)

    bd := chilkat.NewBinData()
    bd.AppendEncoded(*encryptedStr,"base64")
    success = bd.WriteFile("qa_output/enc.dat")

    // The OpenSSL command to decrypt is:
    // openssl pkeyutl -in enc.dat -inkey privKey.pem -keyform PEM -pkeyopt rsa_padding_mode:pkcs1 -decrypt

    fmt.Println("OK")

    rsa.DisposeRsa()
    privKey.DisposePrivateKey()
    pubKey.DisposePublicKey()
    bd.DisposeBinData()