是否可以在SoftHSM上存储密钥?

时间:2016-11-02 13:27:46

标签: java linux ubuntu softhsm

我找到了这个帖子:Connecting to SoftHSM java,它可以在存储私钥时起作用,就像示例一样。

但我需要存储密钥,例如AES。

这是我的代码:

    final RealmConfiguration.Builder builder=new RealmConfiguration.Builder(this);
    builder.schemaVersion(SCHEMA_VERSION);
    if (SCHEMA_VERSION < 105) {
       builder.deleteRealmIfMigrationNeeded();
    } else {
       builder.migration(new Migration());
    }
    final RealmConfiguration config = builder.build();

这是softhsm.cfg文件:

import java.security.*;
import sun.security.pkcs11.*;
import javax.crypto.spec.SecretKeySpec;

public class Main {
    public static void main(String[] args) throws Exception {
        // Set up the Sun PKCS 11 provider
        String configName = "softhsm.cfg";
        Provider p = new SunPKCS11(configName);

        if (-1 == Security.addProvider(p)) {
            throw new RuntimeException("could not add security provider");
        }

        // Load the key store
        char[] pin = "mypin".toCharArray();
        KeyStore keyStore = KeyStore.getInstance("PKCS11", p);
        keyStore.load(null, pin);

        // AES key
        SecretKeySpec secretKeySpec = new SecretKeySpec("0123456789ABCDEF".getBytes(), "AES");
        Key key = new SecretKeySpec(secretKeySpec.getEncoded(), "AES");

        keyStore.setKeyEntry("AA", key, "1234".toCharArray(), null);
        keyStore.store(null); //this gives me the exception.
    }
}

执行keyStore.store(null)时,我收到name = SoftHSM library = /usr/local/lib/softhsm/libsofthsm.so slot = 0 attributes(generate, *, *) = { CKA_TOKEN = true } attributes(generate, CKO_CERTIFICATE, *) = { CKA_PRIVATE = false } attributes(generate, CKO_PUBLIC_KEY, *) = { CKA_PRIVATE = false }

1 个答案:

答案 0 :(得分:2)

原来使用SoftHSMv1发生异常。我安装了SoftHSMv2,您可以使用git从GitHub下载它,并使用它来存储密钥。不要从OpenDNSsec网站下载SoftHSMv2,因为它不起作用!!。

最后我不得不更改softhsm.cfg文件以指向新库,由于某些原因我忽略了,SoftHSM2更改了初始化插槽的数量,您可以使用sudo softhsm2-util --show-slots验证它

softhsm.cfg:

name = SoftHSM
library = /usr/local/lib/softhsm/libsofthsm2.so
slot = 498488451
attributes(generate, *, *) = {
   CKA_TOKEN = true
}
attributes(generate, CKO_CERTIFICATE, *) = {
   CKA_PRIVATE = false
}
attributes(generate, CKO_PUBLIC_KEY, *) = {
   CKA_PRIVATE = false
}

我的代码:

import java.security.*;
import sun.security.pkcs11.*;
import javax.crypto.spec.SecretKeySpec;

public class Main {
    public static void main(String[] args) throws Exception {
        // Set up the Sun PKCS 11 provider
        String configName = "softhsm.cfg";
        Provider p = new SunPKCS11(configName);

        if (-1 == Security.addProvider(p)) {
            throw new RuntimeException("could not add security provider");
        }

        // Load the key store
        char[] pin = "mypin".toCharArray();
        KeyStore keyStore = KeyStore.getInstance("PKCS11", p);
        keyStore.load(null, pin);

        // AES key
        SecretKeySpec secretKeySpec = new SecretKeySpec("0123456789ABCDEF".getBytes(), "AES");
        Key key = new SecretKeySpec(secretKeySpec.getEncoded(), "AES");

        keyStore.setKeyEntry("AA", key, "1234".toCharArray(), null);
        keyStore.store(null); //this no longer gives me the exception.

        Enumeration<String> aliases = keyStore.aliases();
        while(aliases.hasMoreElements()){
            String alias = aliases.nextElement();
            System.out.println(alias + ": " + keyStore.getKey(alias,"1234".toCharArray()));
        }
    }
}

这给了我输出:

AA: SunPKCS11-SoftHSM AES secret key, 16 bits (id 2, token object, not sensitive, unextractable)

如果您尝试使用类似keyStore.getKey("AA", "1234".toCharArray());之类的内容获取密钥,则会获得包含密钥属性的对象,但您无法使用.getEncoded()来实际获取密钥,因为它是不可提取的。