Go

RSA Decrypt using PEM

See more RSA Examples

This example demonstrates decryping RSA encrypted data that is base64 encoded. It uses a private key loaded from a PEM file. Go

    success := false

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

    rsa := chilkat.NewRsa()

    key := chilkat.NewPrivateKey()

    // Load an RSA private key from an unencrypted PEM file:
    // (To load from an encrypted PEM file, call LoadEncryptedPemFile instead.)

    success = key.LoadPemFile("qa_data/rsa/decryptTest/priv.pem")
    if success == false {
        fmt.Println(key.LastErrorText())
        rsa.DisposeRsa()
        key.DisposePrivateKey()
        return
    }

    // Make the key available to the RSA object
    success = rsa.UsePrivateKey(key)
    if success == false {
        fmt.Println(rsa.LastErrorText())
        rsa.DisposeRsa()
        key.DisposePrivateKey()
        return
    }

    encryptedStr := "pP9XFJEsGgxPNHEgNiLB5H5ksCOXDk/G49BPTog1jKLAhYofV4UTH5k2TOYiqRnDnKs8+8uPoN/IxdiGXvuYG8HRzN0HtkhoZO/AxeyaB9S7eddCUlT0Pl2PEB2yQ9HG5rM7jqYOD6MAM4cuX7hqT8fa8tbzJzmBwdfFDBz94bwQjULHiO+gklIBC4vhkXT4yjuvEjxTAKU6tJeZYkBooJNdS/vE5RZRpuF6bGZU41Qc17qFR+iReBq+9f8IMmw8WR8fMbOCaygOfFS1nw7JVsIMGsAIXS8rUaJ/2DfGPfQx5HCiVtTOreGYRUI3esAQjnvUCnavZyQgs53nl7e2aA=="

    rsa.SetEncodingMode("base64")

    usePrivateKey := true
    decryptedStr := rsa.DecryptStringENC(encryptedStr,usePrivateKey)

    fmt.Println("Decrypted:")
    fmt.Println(*decryptedStr)

    rsa.DisposeRsa()
    key.DisposePrivateKey()