*
| Object Identifier | *Attribute Name | *Type | *Value Class | *
|---|---|---|---|
| 1.2.840.113549.1.9.1 | *EmailAddress | *Multi-valued | *String[] |
*
| 1.2.840.113549.1.9.2 | *UnstructuredName | *Multi-valued | *String[] |
*
| 1.2.840.113549.1.9.3 | *ContentType | *Single-valued | *ObjectIdentifier |
*
| 1.2.840.113549.1.9.4 | *MessageDigest | *Single-valued | *byte[] |
*
| 1.2.840.113549.1.9.5 | *SigningTime | *Single-valued | *Date |
*
| 1.2.840.113549.1.9.6 | *Countersignature | *Multi-valued | *SignerInfo[] |
*
| 1.2.840.113549.1.9.7 | *ChallengePassword | *Single-valued | *String |
*
| 1.2.840.113549.1.9.8 | *UnstructuredAddress | *Single-valued | *String |
*
| 1.2.840.113549.1.9.9 | *ExtendedCertificateAttributes | *Multi-valued | *(not supported) | *
| 1.2.840.113549.1.9.10 | *IssuerAndSerialNumber | *Single-valued | *(not supported) | *
| 1.2.840.113549.1.9.{11,12} | *RSA DSI proprietary | *Single-valued | *(not supported) | *
| 1.2.840.113549.1.9.13 | *S/MIME unused assignment | *Single-valued | *(not supported) | *
| 1.2.840.113549.1.9.14 | *ExtensionRequest | *Single-valued | *CertificateExtensions | *
| 1.2.840.113549.1.9.15 | *SMIMECapability | *Single-valued | *(not supported) | *
| 1.2.840.113549.1.9.16.2.12 | *SigningCertificate | *Single-valued | *SigningCertificateInfo | *
| 1.2.840.113549.1.9.16.2.14 | *SignatureTimestampToken | *Single-valued | *byte[] | *
PKCS9_OIDS.
* Sets of acceptable tags are represented as arrays.
*/
private static final Byte[][] PKCS9_VALUE_TAGS = {
null,
{new Byte(DerValue.tag_IA5String)}, // EMailAddress
{new Byte(DerValue.tag_IA5String), // UnstructuredName
new Byte(DerValue.tag_PrintableString)},
{new Byte(DerValue.tag_ObjectId)}, // ContentType
{new Byte(DerValue.tag_OctetString)}, // MessageDigest
{new Byte(DerValue.tag_UtcTime)}, // SigningTime
{new Byte(DerValue.tag_Sequence)}, // Countersignature
{new Byte(DerValue.tag_PrintableString),
new Byte(DerValue.tag_T61String)}, // ChallengePassword
{new Byte(DerValue.tag_PrintableString),
new Byte(DerValue.tag_T61String)}, // UnstructuredAddress
{new Byte(DerValue.tag_SetOf)}, // ExtendedCertificateAttributes
{new Byte(DerValue.tag_Sequence)}, // issuerAndSerialNumber
null,
null,
null,
{new Byte(DerValue.tag_Sequence)}, // extensionRequest
{new Byte(DerValue.tag_Sequence)}, // SMIMECapability
{new Byte(DerValue.tag_Sequence)}, // SigningCertificate
{new Byte(DerValue.tag_Sequence)} // SignatureTimestampToken
};
private static final Class[] VALUE_CLASSES = new Class[18];
static {
try {
Class str = Class.forName("[Ljava.lang.String;");
VALUE_CLASSES[0] = null; // not used
VALUE_CLASSES[1] = str; // EMailAddress
VALUE_CLASSES[2] = str; // UnstructuredName
VALUE_CLASSES[3] = // ContentType
Class.forName("sun.security.util.ObjectIdentifier");
VALUE_CLASSES[4] = BYTE_ARRAY_CLASS; // MessageDigest (byte[])
VALUE_CLASSES[5] = Class.forName("java.util.Date"); // SigningTime
VALUE_CLASSES[6] = // Countersignature
Class.forName("[Lsun.security.pkcs.SignerInfo;");
VALUE_CLASSES[7] = // ChallengePassword
Class.forName("java.lang.String");
VALUE_CLASSES[8] = str; // UnstructuredAddress
VALUE_CLASSES[9] = null; // ExtendedCertificateAttributes
VALUE_CLASSES[10] = null; // IssuerAndSerialNumber
VALUE_CLASSES[11] = null; // not used
VALUE_CLASSES[12] = null; // not used
VALUE_CLASSES[13] = null; // not used
VALUE_CLASSES[14] = // ExtensionRequest
Class.forName("sun.security.x509.CertificateExtensions");
VALUE_CLASSES[15] = null; // not supported yet
VALUE_CLASSES[16] = null; // not supported yet
VALUE_CLASSES[17] = BYTE_ARRAY_CLASS; // SignatureTimestampToken
} catch (ClassNotFoundException e) {
throw new ExceptionInInitializerError(e.toString());
}
}
/**
* Array indicating which PKCS9 attributes are single-valued,
* by index in PKCS9_OIDS.
*/
private static final boolean[] SINGLE_VALUED = {
false,
false, // EMailAddress
false, // UnstructuredName
true, // ContentType
true, // MessageDigest
true, // SigningTime
false, // Countersignature
true, // ChallengePassword
false, // UnstructuredAddress
false, // ExtendedCertificateAttributes
true, // IssuerAndSerialNumber - not supported yet
false, // not used
false, // not used
false, // not used
true, // ExtensionRequest
true, // SMIMECapability - not supported yet
true, // SigningCertificate
true // SignatureTimestampToken
};
/**
* The OID of this attribute.
*/
private ObjectIdentifier oid;
/**
* The index of the OID of this attribute in PKCS9_OIDS,
* or -1 if it's unknown.
*/
private int index;
/**
* Value set of this attribute. Its class is given by
* VALUE_CLASSES[index]. The SET itself
* as byte[] if unknown.
*/
private Object value;
/**
* Construct an attribute object from the attribute's OID and
* value. If the attribute is single-valued, provide only one
* value. If the attribute is multi-valued, provide an array
* containing all the values.
* Arrays of length zero are accepted, though probably useless.
*
* The
* table gives the class that value
* must have for a given attribute.
*
* @exception IllegalArgumentException
* if the value has the wrong type.
*/
public PKCS9Attribute(ObjectIdentifier oid, Object value)
throws IllegalArgumentException {
init(oid, value);
}
/**
* Construct an attribute object from the attribute's name and
* value. If the attribute is single-valued, provide only one
* value. If the attribute is multi-valued, provide an array
* containing all the values.
* Arrays of length zero are accepted, though probably useless.
*
*
The
* table gives the class that value
* must have for a given attribute. Reasonable variants of these
* attributes are accepted; in particular, case does not matter.
*
* @exception IllegalArgumentException
* if the name is not recognized or the
* value has the wrong type.
*/
public PKCS9Attribute(String name, Object value)
throws IllegalArgumentException {
ObjectIdentifier oid = getOID(name);
if (oid == null)
throw new IllegalArgumentException(
"Unrecognized attribute name " + name +
" constructing PKCS9Attribute.");
init(oid, value);
}
private void init(ObjectIdentifier oid, Object value)
throws IllegalArgumentException {
this.oid = oid;
index = indexOf(oid, PKCS9_OIDS, 1);
Class clazz = index == -1 ? BYTE_ARRAY_CLASS: VALUE_CLASSES[index];
if (!clazz.isInstance(value)) {
throw new IllegalArgumentException(
"Wrong value class " +
" for attribute " + oid +
" constructing PKCS9Attribute; was " +
value.getClass().toString() + ", should be " +
clazz.toString());
}
this.value = value;
}
/**
* Construct a PKCS9Attribute from its encoding on an input
* stream.
*
* @param val the DerValue representing the DER encoding of the attribute.
* @exception IOException on parsing error.
*/
public PKCS9Attribute(DerValue derVal) throws IOException {
DerInputStream derIn = new DerInputStream(derVal.toByteArray());
DerValue[] val = derIn.getSequence(2);
if (derIn.available() != 0)
throw new IOException("Excess data parsing PKCS9Attribute");
if (val.length != 2)
throw new IOException("PKCS9Attribute doesn't have two components");
// get the oid
oid = val[0].getOID();
byte[] content = val[1].toByteArray();
DerValue[] elems = new DerInputStream(content).getSet(1);
index = indexOf(oid, PKCS9_OIDS, 1);
if (index == -1) {
if (debug != null) {
debug.println("Unsupported signer attribute: " + oid);
}
value = content;
return;
}
// check single valued have only one value
if (SINGLE_VALUED[index] && elems.length > 1)
throwSingleValuedException();
// check for illegal element tags
Byte tag;
for (int i=0; i < elems.length; i++) {
tag = new Byte(elems[i].tag);
if (indexOf(tag, PKCS9_VALUE_TAGS[index], 0) == -1)
throwTagException(tag);
}
switch (index) {
case 1: // email address
case 2: // unstructured name
case 8: // unstructured address
{ // open scope
String[] values = new String[elems.length];
for (int i=0; i < elems.length; i++)
values[i] = elems[i].getAsString();
value = values;
} // close scope
break;
case 3: // content type
value = elems[0].getOID();
break;
case 4: // message digest
value = elems[0].getOctetString();
break;
case 5: // signing time
value = (new DerInputStream(elems[0].toByteArray())).getUTCTime();
break;
case 6: // countersignature
{ // open scope
SignerInfo[] values = new SignerInfo[elems.length];
for (int i=0; i < elems.length; i++)
values[i] =
new SignerInfo(elems[i].toDerInputStream());
value = values;
} // close scope
break;
case 7: // challenge password
value = elems[0].getAsString();
break;
case 9: // extended-certificate attribute -- not supported
throw new IOException("PKCS9 extended-certificate " +
"attribute not supported.");
// break unnecessary
case 10: // issuerAndserialNumber attribute -- not supported
throw new IOException("PKCS9 IssuerAndSerialNumber" +
"attribute not supported.");
// break unnecessary
case 11: // RSA DSI proprietary
case 12: // RSA DSI proprietary
throw new IOException("PKCS9 RSA DSI attributes" +
"11 and 12, not supported.");
// break unnecessary
case 13: // S/MIME unused attribute
throw new IOException("PKCS9 attribute #13 not supported.");
// break unnecessary
case 14: // ExtensionRequest
value = new CertificateExtensions(
new DerInputStream(elems[0].toByteArray()));
break;
case 15: // SMIME-capability attribute -- not supported
throw new IOException("PKCS9 SMIMECapability " +
"attribute not supported.");
// break unnecessary
case 16: // SigningCertificate attribute
value = new SigningCertificateInfo(elems[0].toByteArray());
break;
case 17: // SignatureTimestampToken attribute
value = elems[0].toByteArray();
break;
default: // can't happen
}
}
/**
* Write the DER encoding of this attribute to an output stream.
*
*
N.B.: This method always encodes values of
* ChallengePassword and UnstructuredAddress attributes as ASN.1
* PrintableStrings, without checking whether they
* should be encoded as T61Strings.
*/
public void derEncode(OutputStream out) throws IOException {
DerOutputStream temp = new DerOutputStream();
temp.putOID(oid);
switch (index) {
case -1: // Unknown
temp.write((byte[])value);
break;
case 1: // email address
case 2: // unstructured name
{ // open scope
String[] values = (String[]) value;
DerOutputStream[] temps = new
DerOutputStream[values.length];
for (int i=0; i < values.length; i++) {
temps[i] = new DerOutputStream();
temps[i].putIA5String( values[i]);
}
temp.putOrderedSetOf(DerValue.tag_Set, temps);
} // close scope
break;
case 3: // content type
{
DerOutputStream temp2 = new DerOutputStream();
temp2.putOID((ObjectIdentifier) value);
temp.write(DerValue.tag_Set, temp2.toByteArray());
}
break;
case 4: // message digest
{
DerOutputStream temp2 = new DerOutputStream();
temp2.putOctetString((byte[]) value);
temp.write(DerValue.tag_Set, temp2.toByteArray());
}
break;
case 5: // signing time
{
DerOutputStream temp2 = new DerOutputStream();
temp2.putUTCTime((Date) value);
temp.write(DerValue.tag_Set, temp2.toByteArray());
}
break;
case 6: // countersignature
temp.putOrderedSetOf(DerValue.tag_Set, (DerEncoder[]) value);
break;
case 7: // challenge password
{
DerOutputStream temp2 = new DerOutputStream();
temp2.putPrintableString((String) value);
temp.write(DerValue.tag_Set, temp2.toByteArray());
}
break;
case 8: // unstructured address
{ // open scope
String[] values = (String[]) value;
DerOutputStream[] temps = new
DerOutputStream[values.length];
for (int i=0; i < values.length; i++) {
temps[i] = new DerOutputStream();
temps[i].putPrintableString(values[i]);
}
temp.putOrderedSetOf(DerValue.tag_Set, temps);
} // close scope
break;
case 9: // extended-certificate attribute -- not supported
throw new IOException("PKCS9 extended-certificate " +
"attribute not supported.");
// break unnecessary
case 10: // issuerAndserialNumber attribute -- not supported
throw new IOException("PKCS9 IssuerAndSerialNumber" +
"attribute not supported.");
// break unnecessary
case 11: // RSA DSI proprietary
case 12: // RSA DSI proprietary
throw new IOException("PKCS9 RSA DSI attributes" +
"11 and 12, not supported.");
// break unnecessary
case 13: // S/MIME unused attribute
throw new IOException("PKCS9 attribute #13 not supported.");
// break unnecessary
case 14: // ExtensionRequest
{
DerOutputStream temp2 = new DerOutputStream();
CertificateExtensions exts = (CertificateExtensions)value;
try {
exts.encode(temp2, true);
} catch (CertificateException ex) {
throw new IOException(ex.toString());
}
temp.write(DerValue.tag_Set, temp2.toByteArray());
}
break;
case 15: // SMIMECapability
throw new IOException("PKCS9 attribute #15 not supported.");
// break unnecessary
case 16: // SigningCertificate
throw new IOException(
"PKCS9 SigningCertificate attribute not supported.");
// break unnecessary
case 17: // SignatureTimestampToken
temp.write(DerValue.tag_Set, (byte[])value);
break;
default: // can't happen
}
DerOutputStream derOut = new DerOutputStream();
derOut.write(DerValue.tag_Sequence, temp.toByteArray());
out.write(derOut.toByteArray());
}
/**
* Returns if the attribute is known. Unknown attributes can be created
* from DER encoding with unknown OIDs.
*/
public boolean isKnown() {
return index != -1;
}
/**
* Get the value of this attribute. If the attribute is
* single-valued, return just the one value. If the attribute is
* multi-valued, return an array containing all the values.
* It is possible for this array to be of length 0.
*
*
The
* table gives the class of the value returned,
* depending on the type of this attribute.
*/
public Object getValue() {
return value;
}
/**
* Show whether this attribute is single-valued.
*/
public boolean isSingleValued() {
return index == -1 || SINGLE_VALUED[index];
}
/**
* Return the OID of this attribute.
*/
public ObjectIdentifier getOID() {
return oid;
}
/**
* Return the name of this attribute.
*/
public String getName() {
return index == -1 ?
oid.toString() :
OID_NAME_TABLE.get(PKCS9_OIDS[index]);
}
/**
* Return the OID for a given attribute name or null if we don't recognize
* the name.
*/
public static ObjectIdentifier getOID(String name) {
return NAME_OID_TABLE.get(name.toLowerCase(Locale.ENGLISH));
}
/**
* Return the attribute name for a given OID or null if we don't recognize
* the oid.
*/
public static String getName(ObjectIdentifier oid) {
return OID_NAME_TABLE.get(oid);
}
/**
* Returns a string representation of this attribute.
*/
public String toString() {
StringBuffer buf = new StringBuffer(100);
buf.append("[");
if (index == -1) {
buf.append(oid.toString());
} else {
buf.append(OID_NAME_TABLE.get(PKCS9_OIDS[index]));
}
buf.append(": ");
if (index == -1 || SINGLE_VALUED[index]) {
if (value instanceof byte[]) { // special case for octet string
HexDumpEncoder hexDump = new HexDumpEncoder();
buf.append(hexDump.encodeBuffer((byte[]) value));
} else {
buf.append(value.toString());
}
buf.append("]");
return buf.toString();
} else { // multi-valued
boolean first = true;
Object[] values = (Object[]) value;
for (int j=0; j < values.length; j++) {
if (first)
first = false;
else
buf.append(", ");
buf.append(values[j].toString());
}
return buf.toString();
}
}
/**
* Beginning the search at start, find the first
* index i such that a[i] = obj.
*
* @return the index, if found, and -1 otherwise.
*/
static int indexOf(Object obj, Object[] a, int start) {
for (int i=start; i < a.length; i++) {
if (obj.equals(a[i])) return i;
}
return -1;
}
/**
* Throw an exception when there are multiple values for
* a single-valued attribute.
*/
private void throwSingleValuedException() throws IOException {
throw new IOException("Single-value attribute " +
oid + " (" + getName() + ")" +
" has multiple values.");
}
/**
* Throw an exception when the tag on a value encoding is
* wrong for the attribute whose value it is. This method
* will only be called for known tags.
*/
private void throwTagException(Byte tag)
throws IOException {
Byte[] expectedTags = PKCS9_VALUE_TAGS[index];
StringBuffer msg = new StringBuffer(100);
msg.append("Value of attribute ");
msg.append(oid.toString());
msg.append(" (");
msg.append(getName());
msg.append(") has wrong tag: ");
msg.append(tag.toString());
msg.append(". Expected tags: ");
msg.append(expectedTags[0].toString());
for (int i = 1; i < expectedTags.length; i++) {
msg.append(", ");
msg.append(expectedTags[i].toString());
}
msg.append(".");
throw new IOException(msg.toString());
}
}