Decrypt decrypts encrypted rune slice based on the RSA algorithm
(encrypted []rune, privateExponent, modulus int64)
| 43 | |
| 44 | // Decrypt decrypts encrypted rune slice based on the RSA algorithm |
| 45 | func Decrypt(encrypted []rune, privateExponent, modulus int64) (string, error) { |
| 46 | var decrypted []rune |
| 47 | |
| 48 | for _, letter := range encrypted { |
| 49 | decryptedLetter, err := modular.Exponentiation(int64(letter), privateExponent, modulus) |
| 50 | if err != nil { |
| 51 | return "", ErrorFailedToDecrypt |
| 52 | } |
| 53 | decrypted = append(decrypted, rune(decryptedLetter)) |
| 54 | } |
| 55 | return string(decrypted), nil |
| 56 | } |