如何使用品牌API证书解密敏感字段 更新时间：2025.07.24 以 Markdown 格式查看 | 复制给 LLM | 问 AI
同样的，大部分编程语言支持RSA私钥解密。你可以参考示例，了解如何使用您的编程语言实现敏感信息解密。
1 public static String rsaDecryptOAEP ( String ciphertext , PrivateKey privateKey )
2 throws BadPaddingException , IOException {
3 try {
4 Cipher cipher = Cipher . getInstance ( "RSA/ECB/OAEPWithSHA-1AndMGF1Padding" ) ;
5 cipher . init ( Cipher . DECRYPT_MODE , privateKey ) ;
6 byte [ ] data = Base64 . getDecoder ( ) . decode ( ciphertext ) ;
7 return new String ( cipher . doFinal ( data ) , "utf-8" ) ;
8 } catch ( NoSuchPaddingException | NoSuchAlgorithmException e ) {
9 throw new RuntimeException ( "当前Java环境不支持RSA v1.5/OAEP" , e ) ;
10 } catch ( InvalidKeyException e ) {
11 throw new IllegalArgumentException ( "无效的私钥" , e ) ;
12 } catch ( BadPaddingException | IllegalBlockSizeException e ) {
13 throw new BadPaddingException ( "解密失败" ) ;
14 }
15 } GO：
1 cipherdata , _ : = base64 . StdEncoding . DecodeString ( ciphertext )
2 rng : = rand . Reader
3 plaintext , err : = DecryptOAEP ( sha1 . New ( ) , rng , rsaPrivateKey , cipherdata , nil )
4 if err != nil {
5 fmt . Fprintf ( os . Stderr , "Error from decryption: %s\n" , err )
6 return
7 }
8 fmt . Printf ( "Plaintext: %s\n" , string ( plaintext ) )
