为什么ECIES私钥加密 公钥处理就出错,但是公钥加密,私钥处理就正常
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//公钥加密 私钥处理//初始化秘钥try { KeyPairGenerator kp=KeyPairGenerator.getInstance("EC","BC"); kp.initialize(256,new SecureRandom()); KeyPair keyPair=kp.generateKeyPair(); ECPublicKey ecPubKey=(ECPublicKey)keyPair.getPublic(); ECPrivateKey ecPriKey=(ECPrivateKey)keyPair.getPrivate(); System.out.println("公钥:"+ Base64.encodeBase64String(ecPubKey.getEncoded())); System.out.println("私钥:"+ Base64.encodeBase64String(ecPriKey.getEncoded())); //私钥加密,公钥处理:加密 PKCS8EncodedKeySpec peks=new PKCS8EncodedKeySpec(ecPriKey.getEncoded()); KeyFactory keyFactory=KeyFactory.getInstance("EC"); PrivateKey priKey=keyFactory.generatePrivate(peks); Cipher cipher=Cipher.getInstance("ECIES","BC"); cipher.init(Cipher.ENCRYPT_MODE,priKey); byte[] result=cipher.doFinal("hello".getBytes()); System.out.println("私钥加密,公钥处理:加密-----"+Base64.encodeBase64String(result)); //私钥加密,公钥处理:处理 X509EncodedKeySpec x509=new X509EncodedKeySpec(ecPubKey.getEncoded()); keyFactory=KeyFactory.getInstance("EC"); PublicKey pubKey=keyFactory.generatePublic(x509); cipher=Cipher.getInstance("ECIES","BC"); cipher.init(Cipher.DECRYPT_MODE,pubKey); result=cipher.doFinal(result); System.out.println("私钥加密,公钥处理:处理"+new String(result));}catch (NoSuchAlgorithmException e) { e.printStackTrace();} catch (NoSuchProviderException e) { e.printStackTrace();} catch (InvalidKeySpecException e) { e.printStackTrace();} catch (NoSuchPaddingException e) { e.printStackTrace();} catch (InvalidKeyException e) { e.printStackTrace();} catch (BadPaddingException e) { e.printStackTrace();} catch (IllegalBlockSizeException e) { e.printStackTrace();}异常信息 java.security.InvalidKeyException: must be passed recipient's public EC key for encryption at org.bouncycastle.jcajce.provider.asymmetric.ec.IESCipher.engineInit(Unknown Source) at org.bouncycastle.jcajce.provider.asymmetric.ec.IESCipher.engineInit(Unknown Source) at java.base/javax.crypto.Cipher.init(Cipher.java:1283) at java.base/javax.crypto.Cipher.init(Cipher.java:1223) |
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