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org.mozilla.jss.pkcs12
Class AuthenticatedSafes
java.lang.Object org.mozilla.jss.pkcs12.AuthenticatedSafes
- All Implemented Interfaces:
- ASN1Value
public class AuthenticatedSafes
- extends java.lang.Object
- implements ASN1Value
- extends java.lang.Object
An AuthenticatedSafes, which is a SEQUENCE
of
SafeContents.
Nested Class Summary | |
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static class |
AuthenticatedSafes.Template
A Template class for decoding an AuthenticatedSafes from its BER encoding. |
Field Summary | |
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static int |
DEFAULT_ITERATIONS
The default number of hash iterations (1) when performing PBE keygen. |
static PBEAlgorithm |
DEFAULT_KEY_GEN_ALG
The default PBE key generation algorithm: SHA-1 with RC2 40-bit CBC. |
Constructor Summary | |
---|---|
AuthenticatedSafes()
Default constructor, creates an empty AuthenticatedSafes. |
|
AuthenticatedSafes(SEQUENCE sequence)
Creates an AuthenticatedSafes from a SEQUENCE of ContentInfo. |
Method Summary | |
---|---|
void |
addEncryptedSafeContents(PBEAlgorithm keyGenAlg,
Password password,
byte[] salt,
int iterationCount,
SEQUENCE safeContents)
Encrypts a SafeContents and adds it to the AuthenticatedSafes. |
void |
addSafeContents(SEQUENCE safeContents)
Appends an unencrypted SafeContents to the end of the AuthenticatedSafes. |
void |
encode(java.io.OutputStream ostream)
Write this value's DER encoding to an output stream using its own base tag. |
void |
encode(Tag implicitTag,
java.io.OutputStream ostream)
Write this value's DER encoding to an output stream using an implicit tag. |
SEQUENCE |
getSafeContentsAt(Password password,
int index)
Returns the SafeContents at the given index in the AuthenticatedSafes, decrypting it if necessary. |
SEQUENCE |
getSequence()
Returns the raw SEQUENCE which constitutes this AuthenticatedSafes. |
int |
getSize()
Returns the size of the sequence, which is the number of SafeContents in this AuthenticatedSafes. |
Tag |
getTag()
Returns the base tag for this type, not counting any tags that may be imposed on it by its context. |
static AuthenticatedSafes.Template |
getTemplate()
|
boolean |
safeContentsIsEncrypted(int index)
Returns true if the SafeContents at the given index in the AuthenticatedSafes is encrypted. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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DEFAULT_ITERATIONS
public static final int DEFAULT_ITERATIONS
- The default number of hash iterations (1) when performing PBE keygen.
- See Also:
- Constant Field Values
DEFAULT_KEY_GEN_ALG
public static final PBEAlgorithm DEFAULT_KEY_GEN_ALG
- The default PBE key generation algorithm: SHA-1 with RC2 40-bit CBC.
Constructor Detail |
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AuthenticatedSafes
public AuthenticatedSafes()
- Default constructor, creates an empty AuthenticatedSafes.
AuthenticatedSafes
public AuthenticatedSafes(SEQUENCE sequence)
- Creates an AuthenticatedSafes from a SEQUENCE of ContentInfo.
- Parameters:
sequence
- A non-null sequence of ContentInfo.
Method Detail |
---|
getSequence
public SEQUENCE getSequence()
- Returns the raw SEQUENCE which constitutes this
AuthenticatedSafes. The elements of this sequence are some
form of SafeContents, wrapped in a ContentInfo or
an EncryptedData.
getSize
public int getSize()
- Returns the size of the sequence, which is the number of SafeContents
in this AuthenticatedSafes.
safeContentsIsEncrypted
public boolean safeContentsIsEncrypted(int index)
- Returns true if the SafeContents at the given index in the
AuthenticatedSafes is encrypted. If it is encrypted, a password
must be supplied to
getSafeContentsAt
when accessing this SafeContents.
getSafeContentsAt
public SEQUENCE getSafeContentsAt(Password password, int index) throws java.lang.IllegalStateException, CryptoManager.NotInitializedException, java.security.NoSuchAlgorithmException, InvalidBERException, java.io.IOException, java.security.InvalidKeyException, java.security.InvalidAlgorithmParameterException, TokenException, IllegalBlockSizeException, BadPaddingException
- Returns the SafeContents at the given index in the AuthenticatedSafes,
decrypting it if necessary.
The algorithm used to extract encrypted SafeContents does not conform to version 1.0 of the spec. Instead, it conforms to the draft 1.0 spec, because this is what Communicator and MSIE seem to conform to. This looks like an implementation error that has become firmly entrenched to preserve interoperability. The draft spec dictates that the encrypted content in the EncryptedContentInfo is the DER encoding of a SafeContents. This is simple enough. The 1.0 final spec says that the SafeContents is wrapped in a ContentInfo, then the ContentInfo is BER encoded, then the value octets (not the tag or length) are encrypted. No wonder people stayed with the old way.
- Parameters:
password
- The password to use to decrypt the SafeContents if it is encrypted. If the SafeContents is known to not be encrypted, this parameter can be null. If the password is incorrect, the decoding will fail somehow, probably with an InvalidBERException, BadPaddingException, or IllegalBlockSizeException.index
- The index of the SafeContents to extract.- Returns:
- A SafeContents object, which is merely a SEQUENCE of SafeBags.
- Throws:
java.lang.IllegalArgumentException
- If no password was provided, but the SafeContents is encrypted.java.lang.IllegalStateException
CryptoManager.NotInitializedException
java.security.NoSuchAlgorithmException
InvalidBERException
java.io.IOException
java.security.InvalidKeyException
java.security.InvalidAlgorithmParameterException
TokenException
IllegalBlockSizeException
BadPaddingException
addSafeContents
public void addSafeContents(SEQUENCE safeContents)
- Appends an unencrypted SafeContents to the end of the AuthenticatedSafes.
addEncryptedSafeContents
public void addEncryptedSafeContents(PBEAlgorithm keyGenAlg, Password password, byte[] salt, int iterationCount, SEQUENCE safeContents) throws CryptoManager.NotInitializedException, java.security.InvalidKeyException, java.security.InvalidAlgorithmParameterException, TokenException, java.security.NoSuchAlgorithmException, BadPaddingException, IllegalBlockSizeException
- Encrypts a SafeContents and adds it to the AuthenticatedSafes.
- Parameters:
keyGenAlg
- The algorithm used to generate a key from the password. Must be a PBE algorithm.DEFAULT_KEY_GEN_ALG
is usually fine here. It only provides 40-bit security, but if the private key material is packaged in its own EncryptedPrivateKeyInfo, the security of the SafeContents is not as important.password
- The password to use to generate the encryption key and IV.salt
- The salt to use to generate the key and IV. If null is passed in, the salt will be generated randomly, which is usually the right thing to do.iterationCount
- The number of hash iterations to perform when generating the key and IV. Use DEFAULT_ITERATIONS unless you want to be clever.safeContents
- A SafeContents, which is a SEQUENCE of SafeBags. Each element of the sequence must in fact be an instance ofSafeBag
.- Throws:
CryptoManager.NotInitializedException
java.security.InvalidKeyException
java.security.InvalidAlgorithmParameterException
TokenException
java.security.NoSuchAlgorithmException
BadPaddingException
IllegalBlockSizeException
getTag
public Tag getTag()
- Description copied from interface:
ASN1Value
- Returns the base tag for this type, not counting any tags
that may be imposed on it by its context.
encode
public void encode(java.io.OutputStream ostream) throws java.io.IOException
- Description copied from interface:
ASN1Value
- Write this value's DER encoding to an output stream using
its own base tag.
- Throws:
java.io.IOException
encode
public void encode(Tag implicitTag, java.io.OutputStream ostream) throws java.io.IOException
- Description copied from interface:
ASN1Value
- Write this value's DER encoding to an output stream using
an implicit tag.
- Throws:
java.io.IOException
getTemplate
public static AuthenticatedSafes.Template getTemplate()
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