Spring SAML：解密加密密钥时出错，没有安装的提供程序支持此密钥

Question

我已经参考了Spring SAML手册来创建私钥和导入公共证书。但是我仍然面临加密/解密的问题。

我用手册中提到的以下命令创建了一个JKS文件，如下所示

用于导入IDP公共证书的命令

keytool -importcert -alias adfssigning -keystore samlKeystore.jks -file testIdp.cer

用于私钥的命令

keytool -genkeypair -alias myprivatealias -keypass changeit -keystore samlKeystore.jks

私钥和密钥存储库的密码定义为更改

我已经配置了securityContext如下

<bean id="keyManager" class="org.springframework.security.saml.key.JKSKeyManager">
    <constructor-arg value="classpath:security/samlKeystore.jks"/>
    <constructor-arg type="java.lang.String" value="changeit"/>
    <constructor-arg>
        <map>
            <entry key="myprivatealias" value="changeit"/>
        </map>
    </constructor-arg>
    <constructor-arg type="java.lang.String" value="myprivatealias"/>
</bean>

我可以看到可以选择IDP的idpDiscovery页面。我也可以查看IDP的登录页面。但是当我提供用户凭据时，我得到了以下异常。

当SAML响应中的saml2:EncryptedAssertion与saml2p:Status一起发送时，会发生此异常。（类别：spring saml jar的WebsProfileConsumerImpl）

ERROR org.opensaml.xml.encryption.Decrypter  - Error decrypting encrypted key
org.apache.xml.security.encryption.XMLEncryptionException: No installed provider supports this key: sun.security.provider.DSAPrivateKey
Original Exception was java.security.InvalidKeyException: No installed provider supports this key: sun.security.provider.DSAPrivateKey
at org.apache.xml.security.encryption.XMLCipher.decryptKey(XMLCipher.java:1479)
at org.opensaml.xml.encryption.Decrypter.decryptKey(Decrypter.java:697)
at org.opensaml.xml.encryption.Decrypter.decryptKey(Decrypter.java:628)
at org.opensaml.xml.encryption.Decrypter.decryptUsingResolvedEncryptedKey(Decrypter.java:783)

Caused by: java.security.InvalidKeyException: No installed provider supports this key: sun.security.provider.DSAPrivateKey
at javax.crypto.Cipher.a(DashoA13*..)
at javax.crypto.Cipher.init(DashoA13*..)
at javax.crypto.Cipher.init(DashoA13*..)
at org.apache.xml.security.encryption.XMLCipher.decryptKey(XMLCipher.java:1475)
... 46 more
740323 [http-8080-2] ERROR org.opensaml.xml.encryption.Decrypter  - Failed to decrypt EncryptedKey, valid decryption key could not be resolved
740324 [http-8080-2] ERROR org.opensaml.xml.encryption.Decrypter  - Failed to decrypt EncryptedData using either EncryptedData KeyInfoCredentialResolver or EncryptedKeyResolver + EncryptedKey KeyInfoCredentialResolver
740325 [http-8080-2] ERROR org.opensaml.saml2.encryption.Decrypter  - SAML Decrypter encountered an error decrypting element content

谁能让我知道我哪里出了问题？？

替代命令使用私钥生成，而不是上面提到的

keytool -genkey -alias privatekeyalias -keyalg RSA -keystore samlKeystore.jks

如果我使用这个命令并更新JKS文件，那么我会得到一个不同的异常，称为InvalidKeyException：密钥太长，无法展开。

Caused by: java.security.InvalidKeyException: Key is too long for unwrapping
at com.sun.crypto.provider.RSACipher.engineUnwrap(DashoA13*..)
at javax.crypto.Cipher.unwrap(DashoA13*..)
at org.apache.xml.security.encryption.XMLCipher.decryptKey(XMLCipher.java:1477)
... 46 more
41   [http-8080-1] ERROR org.opensaml.xml.encryption.Decrypter  - Failed to decrypt EncryptedKey, valid decryption key could not be resolved
42   [http-8080-1] ERROR org.opensaml.xml.encryption.Decrypter  - Failed to decrypt EncryptedData using either EncryptedData KeyInfoCredentialResolver or EncryptedKeyResolver + EncryptedKey KeyInfoCredentialResolver
42   [http-8080-1] ERROR org.opensaml.saml2.encryption.Decrypter  - SAML Decrypter encountered an error decrypting element content

有人能帮我解决这个问题吗？？

Answer 1

该问题是由于在应用程序中使用的密钥库与使用以下命令生成的密钥库不同所致：

keytool -genkeypair -alias privatekeyalias -keypass samplePrivateKeyPass -keystore samlKeystore.jks -keyalg RSA -sigalg SHA1WithRSA