非对称加密算法(asymmetric cryptographic algorithm)又名“公开密钥加密算法”,非对称加密算法需要两个密钥:公开密钥(publickey)和私有密钥(privatekey),其工作原理如下: (1)A要向B发送信息,A和B都要产生一对用于加密和解密的公钥和私钥。 (2)A的私钥保密,A的公钥告诉B;B的私钥保密,B
public static Map<String, Object> initKey() throws Exception { KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM); keyPairGen.initialize(1024); KeyPair keyPair = keyPairGen.generateKeyPair(); RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic(); RSAPrivateKey pri...
public static Map<String, Object> initKey() throws Exception { KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM); keyPairGen.initialize(1024); KeyPair keyPair = keyPairGen.generateKeyPair(); RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic(); RSAPrivateKey pri...
使用KeyPairGenerator的generateKeyPair()方法创建KeyPair实例.一个KeyPair实例表示一对密钥,即一个密钥对.包括公钥与私钥. KeyPair senderKeyPair = senderKeyPairGenerator.generateKeyPair(); KeyPair的getPublic()方法返回PublicKey类型(公钥),getPrivate()方法返回PrivateKey类型(私钥)。 DHPublicKey接口、DHPrivate...
[size=large][color=red]RSA算法原理[/color][/size] [url]http://www.ruanyifeng.com/blog/2013/06/rsa_algorithm_part_one.html[/url] "非对称加密算法"。 [color=darkblue] (1)乙方生成两把密钥(公钥和私钥)。公钥是公开的,任何人都可以获得,私钥则是保密的。
public class DH { //非对称加密密钥算法 public static final String KEY_ALGORITHM = "DH"; //本地密钥算法,即对称加密算法 public static final String SECRET_ALGORITHM = "AES"; /** * 密钥长度 * DH算法默认密钥长度为1024 * 密钥长度必须是64的倍数,其范围在512位到1024位之间 */ private static ...
Enum KeyAlgorithm java.lang.Object java.lang.Enum<KeyAlgorithm> com.amazonaws.services.acmpca.model.KeyAlgorithm All Implemented Interfaces: Serializable,Comparable<KeyAlgorithm> @Generated(value="com.amazonaws:aws-java-sdk-code-generator") public enumKeyAlgorithmextendsEnum<KeyAlgorithm> ...
*/public class RsaUtils {/*** 非对称密钥算法*/private static final String RSA_ALGORITHM = "RSA";/*** 密钥长度,DH算法的默认密钥长度是1024* 密钥长度必须是64的倍数,在512到65536位之间*/private static final int KEY_SIZE = 2048;/*** 公钥*/private static final String PUBLIC_KEY = "javaBoy...
KeyStoreSpi MessageDigest MessageDigestSpi NoSuchAlgorithmException NoSuchProviderException Permission PermissionCollection Permissions PKCS12Attribute Policy Policy.IParameters PolicySpi PrivateKey PrivilegedActionException ProtectionDomain Provider Provider.Service ProviderException PublicKey SecureClassLoader SecureRandom ...
The interface for a Digital Signature Algorithm (DSA) public key.C# 複製 [System.Obsolete("Use the 'Java.Security.Interfaces.IDSAPublicKey' type. This class will be removed in a future release.")] [Android.Runtime.Register("mono/internal/java/security/interfaces/DSAPublicKey", DoNotGenerate...