53 lines
1.4 KiB
Markdown
53 lines
1.4 KiB
Markdown
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# RSA
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This example demonstrates how to use the `crypt` service to generate an RSA key pair, encrypt a message, and then decrypt it.
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```go
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package main
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import (
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"encoding/base64"
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"fmt"
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"log"
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"github.com/Snider/Enchantrix/pkg/crypt"
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)
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func demoRSA() {
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fmt.Println("--- RSA Demo ---")
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cryptService := crypt.NewService()
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// 1. Generate RSA key pair
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fmt.Println("Generating 2048-bit RSA key pair...")
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publicKey, privateKey, err := cryptService.GenerateRSAKeyPair(2048)
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if err != nil {
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log.Fatalf("Failed to generate RSA key pair: %v", err)
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}
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fmt.Println("Key pair generated successfully.")
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// 2. Encrypt a message
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message := []byte("This is a secret message for RSA.")
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fmt.Printf("\nOriginal message: %s\n", message)
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ciphertext, err := cryptService.EncryptRSA(publicKey, message, nil)
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if err != nil {
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log.Fatalf("Failed to encrypt with RSA: %v", err)
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}
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fmt.Printf("Encrypted ciphertext (base64): %s\n", base64.StdEncoding.EncodeToString(ciphertext))
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// 3. Decrypt the message
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decrypted, err := cryptService.DecryptRSA(privateKey, ciphertext, nil)
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if err != nil {
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log.Fatalf("Failed to decrypt with RSA: %v", err)
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}
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fmt.Printf("Decrypted message: %s\n", decrypted)
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// 4. Verify
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if string(message) == string(decrypted) {
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fmt.Println("\nSuccess! RSA decrypted message matches the original.")
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} else {
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fmt.Println("\nFailure! RSA decrypted message does not match the original.")
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}
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fmt.Println()
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}
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```
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