void cipher_decipher(s64 *in, int len, s64 *out, s64 e, s64 N) { for (int i = 0; i < len; i++) { out[i] = cipher_s64(in[i], e, N); } } 1. 2. 3. 4. 5. 利用快速幂进行加密 s64 cipher_s64(s64 in, s64 e, s64 N) { return qpow(in, e, N); } 1...
第一步,制作自签名的证书 1.最简单快捷的方法,打开Terminal,使用openssl(Mac OS X自带)生成私钥和自签名的x509证书。 openssl req -x509 -out public_key.der -outform der -new -newkey rsa:1024 -keyout private_key.pem -days 3650 按照命令行的提示输入内容就行了。 几个说明: public_key.der是输出的...
import java.security.NoSuchAlgorithmException;import java.security.SecureRandom;import java.security.interfaces.RSAPrivateKey;import java.security.interfaces.RSAPublicKey;import java.security.spec.InvalidKeySpecException;import java.security.spec.PKCS8EncodedKeySpec;import java.security.spec.X509EncodedKeySpec;i...
paperintroducesthegSApublic-keyencryptionsystemanditsimplementationprocess.AdditionallyaimplementationbyJAVAispresented. Keywords:public-keyencryptionsystem;gSA ;JAVA 1引言 随着全球正在进入信息经济时代以及计算机互联网的 逐步普及,基于计算机网络的电子商务,电子政务已经逐 ...
最后,实现了用java语言编写的RSA加解密系统。 关键字:RSA,公钥密码,java Implementationofencryption and decryption systembased on RSA cryptosystem Abstract:Cryptographic techniquesis one of the main meansto ensure informationsecurity. Inall kinds of cryptographic techniques,RSA public-key cryptosystem is by ...
import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import it.sauronsoftware.base64.Base64;/***//** * * BASE64编码解码工具包 * * * 依赖javabase64-1.3.1.jar * * * @author IceWee *
This Java API allows you to easily and securely encrypt/decrypt important data using RSA and AES. Background I wanted to make an actual program in Java for the first time and when looking for many ways to use RSA in a Java program online, many were complicated and/or very outdated. So...
This paper investigates incorporation of very large integers into the implementation of the RSA model. We precisely describe parts of the RSA algorithm where such innovations are sought and how the concept of the BigInteger class fits in. Our illustrations assume programming in Java. While the ...
* * An RSA implementation */ public class RSA { private int securityParam; private Random random; private BigInteger bigIntN; private BigInteger bigIntP; private BigInteger bigIntQ; private BigInteger bigIntPhiN; private BigInteger e; private BigInteger d; public RSA(int securityParam) { this....
问为什么RSA加密块出现间歇性解密错误？ENRSA加密算法是一种可逆的非对称加密算法，即RSA加密时候用的密钥...