com.tencent.kona.sun.security.rsa

Class RSAUtil

java.lang.Object

com.tencent.kona.sun.security.rsa.RSAUtil

public class RSAUtil
extends java.lang.Object

Utility class for SunRsaSign provider. Currently used by RSAKeyPairGenerator and RSAKeyFactory.

Since:

11

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RSAUtil.KeyType

Constructor Summary

Constructors

Constructor and Description
RSAUtil()

Method Summary

Modifier and Type	Method and Description
static java.security.spec.AlgorithmParameterSpec	checkParamsAgainstType(RSAUtil.KeyType type, java.security.spec.AlgorithmParameterSpec paramSpec)
static AlgorithmId	createAlgorithmId(RSAUtil.KeyType type, java.security.spec.AlgorithmParameterSpec paramSpec)
static byte[]	decodeSignature(ObjectIdentifier oid, byte[] sig) Decode the signature data.
static byte[]	encodeSignature(ObjectIdentifier oid, byte[] digest) Encode the digest, return the to-be-signed data.
static java.security.AlgorithmParameters	getParams(RSAUtil.KeyType type, java.security.spec.AlgorithmParameterSpec spec)
static java.security.spec.AlgorithmParameterSpec	getParamSpec(java.security.AlgorithmParameters params)
static java.lang.Object[]	getTypeAndParamSpec(AlgorithmId algid)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RSAUtil

public RSAUtil()

Method Detail

checkParamsAgainstType

public static java.security.spec.AlgorithmParameterSpec checkParamsAgainstType(RSAUtil.KeyType type,
                                                                               java.security.spec.AlgorithmParameterSpec paramSpec)
                                                                        throws java.security.ProviderException

Throws:

java.security.ProviderException

getParams

public static java.security.AlgorithmParameters getParams(RSAUtil.KeyType type,
                                                          java.security.spec.AlgorithmParameterSpec spec)
                                                   throws java.security.ProviderException

Throws:

java.security.ProviderException

createAlgorithmId

public static AlgorithmId createAlgorithmId(RSAUtil.KeyType type,
                                            java.security.spec.AlgorithmParameterSpec paramSpec)
                                     throws java.security.ProviderException

Throws:

java.security.ProviderException

getParamSpec

public static java.security.spec.AlgorithmParameterSpec getParamSpec(java.security.AlgorithmParameters params)
                                                              throws java.security.ProviderException

Throws:

java.security.ProviderException

getTypeAndParamSpec

public static java.lang.Object[] getTypeAndParamSpec(AlgorithmId algid)
                                              throws java.security.ProviderException

Throws:

java.security.ProviderException

encodeSignature

public static byte[] encodeSignature(ObjectIdentifier oid,
                                     byte[] digest)
                              throws java.io.IOException

Encode the digest, return the to-be-signed data. Also used by the PKCS#11 provider.

Throws:

java.io.IOException

decodeSignature

public static byte[] decodeSignature(ObjectIdentifier oid,
                                     byte[] sig)
                              throws java.io.IOException

Decode the signature data. Verify that the object identifier matches and return the message digest.

Throws:

java.io.IOException