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为什么java.security.nosuchprovidedexception没有这样的提供者:bc?

  •  57
  • jacknad  · 技术社区  · 15 年前

    jar(bcprov-jdk16-145.jar)已经添加到项目中, Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()) 已添加到类中,并且 BouncyCastleProvider.PROVIDER_NAME 返回“bc”,但aesfileio.writefile()仍引发 java.security.NoSuchProviderException No such provider: BC . 有什么想法吗?

    import java.io.FileOutputStream;
    import java.io.InputStreamReader;
    import java.io.ObjectOutputStream;
    import javax.crypto.Cipher;
    import javax.crypto.spec.IvParameterSpec;
    import javax.crypto.spec.SecretKeySpec;
    import org.bouncycastle.jce.provider.BouncyCastleProvider;
    
    public class AesFileIo {
    
        private static final String AES_ALGORITHM = "AES/CTR/NoPadding";
        private static final String PROVIDER = BouncyCastleProvider.PROVIDER_NAME;
        private static final byte[] AES_KEY_128 = { // Hard coded for now
            78, -90, 42, 70, -5, 20, -114, 103,
            -99, -25, 76, 95, -85, 94, 57, 54};
        private static final byte[] IV = { // Hard coded for now
            -85, -67, -5, 88, 28, 49, 49, 85,
            114, 83, -40, 119, -65, 91, 76, 108};
        private static final SecretKeySpec secretKeySpec =
                new SecretKeySpec(AES_KEY_128, "AES");
        private static final IvParameterSpec ivSpec = new IvParameterSpec(IV);
    
        public void AesFileIo() {
            Security.addProvider(new org.bouncycastle.jce.provider
                    .BouncyCastleProvider());
        }
    
        public void writeFile(String fileName, String theFile) {
            try {
                Cipher cipher = Cipher.getInstance(AES_ALGORITHM, PROVIDER);
                cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, ivSpec);
                byte[] encrypted = cipher.doFinal(theFile.getBytes());
                ObjectOutputStream os = new ObjectOutputStream(
                    new FileOutputStream(fileName));
                os.write(encrypted);
                os.flush();
                os.close();
            } catch (Exception e) {
                StackTraceElement se = new Exception().getStackTrace()[0];
                System.err.println(se.getFileName() + " " + se.getLineNumber()
                        + " " + e);
            }
        }
    }
    
    4 回复  |  直到 8 年前
        1
  •  104
  •   Paolo Forgia panoet    8 年前

    android-sdk BouncyCastle

    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
    

    policy

    security.provider.5=org.bouncycastle.jce.provider.BouncyCastleProvider 
    

    .5

        2
  •  11
  •   kapil das    12 年前

    Security.addProvider(new BouncyCastleProvider());
    

    Cipher cipher = Cipher.getInstance("AES", "SunJCE");
    

    Cipher cipher =  Cipher.getInstance("AES", "BC");
    
        3
  •  7
  •   Krutik    9 年前

    static {
        Security.addProvider(new BouncyCastleProvider());
    }
    

    弹性纤维粗纱机 如下所示,在项目的pom.xml文件中。

    <dependency>
                <groupId>org.bouncycastle</groupId>
                <artifactId>bcprov-jdk15on</artifactId>
                <version>1.47</version>
    </dependency>
    

    如果您使用的是普通Java项目 ,然后您可以添加下载 bcprov-jdk15on-147.jar 从下面给出的链接编辑类路径。

    http://www.java2s.com/Code/Jar/b/Downloadbcprovextjdk15on147jar.htm

        4
  •  1
  •   mel3kings    11 年前

    对于使用Web服务器的用户,请确保bcprov-jdk16-145.jar已安装在服务器lib中,因为weblogic必须将jar放入:

    <weblogic_jdk_home>\jre\lib\ext