diff options
Diffstat (limited to 'libjava/classpath/gnu/java/security/pkcs/SignerInfo.java')
| -rw-r--r-- | libjava/classpath/gnu/java/security/pkcs/SignerInfo.java | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/security/pkcs/SignerInfo.java b/libjava/classpath/gnu/java/security/pkcs/SignerInfo.java new file mode 100644 index 00000000000..c976799bb0c --- /dev/null +++ b/libjava/classpath/gnu/java/security/pkcs/SignerInfo.java @@ -0,0 +1,279 @@ +/* SignerInfo.java -- a SignerInfo object, from PKCS #7 + Copyright (C) 2004, 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.java.security.pkcs; + +import gnu.java.security.OID; +import gnu.java.security.ber.BER; +import gnu.java.security.ber.BEREncodingException; +import gnu.java.security.ber.BERReader; +import gnu.java.security.ber.BERValue; +import gnu.java.security.der.DERValue; + +import java.io.IOException; + +import java.math.BigInteger; + +import javax.security.auth.x500.X500Principal; + +public class SignerInfo +{ + private final BigInteger version; + private final BigInteger serialNumber; + private final X500Principal issuer; + private final OID digestAlgorithmId; + private final byte[] digestAlgorithmParams; + private final byte[] authenticatedAttributes; + private final OID digestEncryptionAlgorithmId; + private final byte[] digestEncryptionAlgorithmParams; + private final byte[] encryptedDigest; + private final byte[] unauthenticatedAttributes; + + private static final boolean DEBUG = false; + private static void debug(String msg) + { + System.err.print("SignerInfo >> "); + System.err.println(msg); + } + + /** + * Parse a SignerInfo object. + */ + public SignerInfo(BERReader ber) throws IOException + { + DERValue val = ber.read(); + if (DEBUG) + debug("SignerInfo: " + val); + if (!val.isConstructed()) + throw new BEREncodingException("malformed SignerInfo"); + + val = ber.read(); + if (val.getTag() != BER.INTEGER) + throw new BEREncodingException("malformed Version"); + version = (BigInteger) val.getValue(); + + if (DEBUG) + debug(" Version: " + version); + + val = ber.read(); + if (!val.isConstructed()) + throw new BEREncodingException("malformed IssuerAndSerialNumber"); + + if (DEBUG) + debug(" IssuerAndSerialNumber: " + val); + + val = ber.read(); + if (!val.isConstructed()) + throw new BEREncodingException("malformed Issuer"); + issuer = new X500Principal(val.getEncoded()); + ber.skip(val.getLength()); + if (DEBUG) + debug(" Issuer: " + issuer); + + val = ber.read(); + if (val.getTag() != BER.INTEGER) + throw new BEREncodingException("malformed SerialNumber"); + serialNumber = (BigInteger) val.getValue(); + if (DEBUG) + debug(" SerialNumber: " + serialNumber); + + val = ber.read(); + if (!val.isConstructed()) + throw new BEREncodingException("malformed DigestAlgorithmIdentifier"); + if (DEBUG) + debug(" DigestAlgorithmIdentifier: " + val); + + int count = 0; + DERValue val2 = ber.read(); + if (val2.getTag() != BER.OBJECT_IDENTIFIER) + throw new BEREncodingException("malformed AlgorithmIdentifier"); + digestAlgorithmId = (OID) val2.getValue(); + if (DEBUG) + debug(" OID: " + digestAlgorithmId); + + if (BERValue.isIndefinite(val)) + { + val2 = ber.read(); + if (val2 != BER.END_OF_SEQUENCE) + { + digestAlgorithmParams = val2.getEncoded(); + val2 = ber.read(); + if (val2 != BER.END_OF_SEQUENCE) + throw new BEREncodingException("expecting BER end-of-sequence"); + } + else + digestAlgorithmParams = null; + } + else if (val2.getEncodedLength() < val.getLength()) + { + val2 = ber.read(); + digestAlgorithmParams = val2.getEncoded(); + if (val2.isConstructed()) + ber.skip(val2.getLength()); + } + else + digestAlgorithmParams = null; + if(DEBUG) + debug(" params: " + (digestAlgorithmParams == null ? null + : new BigInteger(digestAlgorithmParams).toString(16))); + + val = ber.read(); + if (val.getTag() == 0) + { + authenticatedAttributes = val.getEncoded(); + val = ber.read(); + if (val.isConstructed()) + ber.skip(val.getLength()); + if (DEBUG) + debug(" AuthenticatedAttributes: " + val); + val = ber.read(); + } + else + authenticatedAttributes = null; + + if (!val.isConstructed()) + throw new BEREncodingException("malformed DigestEncryptionAlgorithmIdentifier"); + if (DEBUG) + debug(" DigestEncryptionAlgorithmIdentifier: " + val); + count = 0; + val2 = ber.read(); + if (val2.getTag() != BER.OBJECT_IDENTIFIER) + throw new BEREncodingException("malformed AlgorithmIdentifier"); + digestEncryptionAlgorithmId = (OID) val2.getValue(); + if (DEBUG) + debug(" OID: " + digestEncryptionAlgorithmId); + + if (BERValue.isIndefinite(val)) + { + val2 = ber.read(); + if (val2 != BER.END_OF_SEQUENCE) + { + digestEncryptionAlgorithmParams = val2.getEncoded(); + val2 = ber.read(); + if (val2 != BER.END_OF_SEQUENCE) + throw new BEREncodingException("expecting BER end-of-sequence"); + } + else + digestEncryptionAlgorithmParams = null; + } + else if (val2.getEncodedLength() < val.getLength()) + { + val2 = ber.read(); + digestEncryptionAlgorithmParams = val2.getEncoded(); + if (val2.isConstructed()) + ber.skip(val2.getLength()); + } + else + digestEncryptionAlgorithmParams = null; + if(DEBUG) + debug(" params: " + (digestEncryptionAlgorithmParams == null ? null + : new BigInteger(digestEncryptionAlgorithmParams).toString(16))); + + val = ber.read(); + if (val.getTag() != BER.OCTET_STRING) + throw new BEREncodingException("malformed EncryptedDigest"); + encryptedDigest = (byte[]) val.getValue(); + if (DEBUG) + debug(" EncryptedDigest: " + new BigInteger(1, encryptedDigest).toString(16)); + + if (ber.peek() == 1) + unauthenticatedAttributes = ber.read().getEncoded(); + else + unauthenticatedAttributes = null; + + if (ber.peek() == 0) + ber.read(); + } + + public BigInteger getVersion() + { + return version; + } + + public BigInteger getSerialNumber() + { + return serialNumber; + } + + public X500Principal getIssuer() + { + return issuer; + } + + public OID getDigestAlgorithmId() + { + return digestAlgorithmId; + } + + public byte[] getDigestAlgorithmParams() + { + return (digestAlgorithmParams != null + ? (byte[]) digestAlgorithmParams.clone() + : null); + } + + public byte[] getAuthenticatedAttributes() + { + return (authenticatedAttributes != null + ? (byte[]) authenticatedAttributes.clone() + : null); + } + + public OID getDigestEncryptionAlgorithmId() + { + return digestEncryptionAlgorithmId; + } + + public byte[] getDigestEncryptionAlgorithmParams() + { + return (digestEncryptionAlgorithmParams != null + ? (byte[]) digestEncryptionAlgorithmParams.clone() + : null); + } + + public byte[] getEncryptedDigest() + { + return (encryptedDigest != null ? (byte[]) encryptedDigest.clone() : null); + } + + public byte[] getUnauthenticatedAttributes() + { + return (unauthenticatedAttributes != null + ? (byte[]) unauthenticatedAttributes.clone() + : null); + } +} |
