invalidkeyexception: sm4 requires a 128 bit key 文心快码BaiduComate 针对您提出的invalidkeyexception: sm4 requires a 128 bit key问题,我将按照您提供的提示进行解答,并尽量包含相关的代码片段来佐证。 1. 确认异常信息来源及含义 InvalidKeyException是Java加密API中抛出的一个异常,表明提供的密钥不符合算法的要求。
at org.xiangbiao.SM4Test.main(SM4Test.java:20) Caused by: java.security.InvalidKeyException: SM4 requires a 128 bit key at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher.engineInit(Unknown Source) at javax.crypto.Cipher.init(Cipher.java:1245) at javax.crypto.Cipher.init(Cipher.j...
测试的时候,SM4Util里的DEFAULT_KEY_SIZE 默认密钥长度是128位,也就是16个字节。测试没有问题。现在想的是,能不能支持256位32个字节,测试的时候报错了。部分堆栈如下: org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$InvalidKeyOrParametersException: SM4 requires a 128 bit key at org....
51CTO博客已为您找到关于SM4 requires a 128 bit key的相关内容,包含IT学习相关文档代码介绍、相关教程视频课程,以及SM4 requires a 128 bit key问答内容。更多SM4 requires a 128 bit key相关解答可以来51CTO博客参与分享和学习,帮助广大IT技术人实现成长和进步。
密钥长度设置为其他值,则报异常:SM4 requires a 128 bit key * * @param keySize * @return * @throws NoSuchAlgorithmException * @throws NoSuchProviderException */ public static byte[] generateKey(int keySize) throws NoSuchAlgorithmException, NoSuchProviderException { KeyGenerator kg = KeyGenerator....
报错信息 Exception in thread "main" cn.hutool.crypto.CryptoException: InvalidKeyException: SM4 requires a 128 bit key at cn.hutool.crypto.symmetric.SymmetricCrypto.encrypt(SymmetricCrypto.java:277) at cn.hutool.crypto.symmetric.SymmetricEncryptor.encrypt(SymmetricEncryptor.java:139) at com.elens.data....
Note: Wake-On-LAN requires an ATX 2.01 (or above) compliant power supply. 1-6 Power Supply As with all computer products, a stable power source is necessary for proper and reliable operation. It is even more important for processors that have high CPU clock rates. The PDSM4+/PDSME+ ...
The CBC mode, on the other hand, is a chained block cipher encryption mode where the encryption of each block depends on the previous ciphertext block. Therefore, it requires an initialization vector (IV) of the same 128-bit length. The CBC mode provides higher security than the ECB mode....
in DER encoding format, the signature needs to be DER decoded first, and then the signature is verified. In the same way, if the client signs, the background verifies the signature, and encodes and decodes according to whether the background requires RS splicing format signature or DER ...
SM4 is a Feistel cipher in which the block size and the key length are 128 bits. The encryption process consists of 32 rounds of iterations, and each round requires a 32-bit round key. The 128-bit plaintext is divided into four 32-bit words (𝑋0,𝑋1,𝑋2,𝑋3)(X0,X1,X2,...