diff options
Diffstat (limited to 'pg/src/main/java/org/bouncycastle/bcpg/SignaturePacket.java')
| -rw-r--r-- | pg/src/main/java/org/bouncycastle/bcpg/SignaturePacket.java | 531 |
1 files changed, 0 insertions, 531 deletions
diff --git a/pg/src/main/java/org/bouncycastle/bcpg/SignaturePacket.java b/pg/src/main/java/org/bouncycastle/bcpg/SignaturePacket.java deleted file mode 100644 index 75edc025..00000000 --- a/pg/src/main/java/org/bouncycastle/bcpg/SignaturePacket.java +++ /dev/null @@ -1,531 +0,0 @@ -package org.bouncycastle.bcpg; - -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.util.Vector; - -import org.bouncycastle.bcpg.sig.IssuerKeyID; -import org.bouncycastle.bcpg.sig.SignatureCreationTime; -import org.bouncycastle.util.Arrays; - -/** - * generic signature packet - */ -public class SignaturePacket - extends ContainedPacket implements PublicKeyAlgorithmTags -{ - private int version; - private int signatureType; - private long creationTime; - private long keyID; - private int keyAlgorithm; - private int hashAlgorithm; - private MPInteger[] signature; - private byte[] fingerPrint; - private SignatureSubpacket[] hashedData; - private SignatureSubpacket[] unhashedData; - private byte[] signatureEncoding; - - SignaturePacket( - BCPGInputStream in) - throws IOException - { - version = in.read(); - - if (version == 3 || version == 2) - { - int l = in.read(); - - signatureType = in.read(); - creationTime = (((long)in.read() << 24) | (in.read() << 16) | (in.read() << 8) | in.read()) * 1000; - keyID |= (long)in.read() << 56; - keyID |= (long)in.read() << 48; - keyID |= (long)in.read() << 40; - keyID |= (long)in.read() << 32; - keyID |= (long)in.read() << 24; - keyID |= (long)in.read() << 16; - keyID |= (long)in.read() << 8; - keyID |= in.read(); - keyAlgorithm = in.read(); - hashAlgorithm = in.read(); - } - else if (version == 4) - { - signatureType = in.read(); - keyAlgorithm = in.read(); - hashAlgorithm = in.read(); - - int hashedLength = (in.read() << 8) | in.read(); - byte[] hashed = new byte[hashedLength]; - - in.readFully(hashed); - - // - // read the signature sub packet data. - // - SignatureSubpacket sub; - SignatureSubpacketInputStream sIn = new SignatureSubpacketInputStream( - new ByteArrayInputStream(hashed)); - - Vector v = new Vector(); - while ((sub = sIn.readPacket()) != null) - { - v.addElement(sub); - } - - hashedData = new SignatureSubpacket[v.size()]; - - for (int i = 0; i != hashedData.length; i++) - { - SignatureSubpacket p = (SignatureSubpacket)v.elementAt(i); - if (p instanceof IssuerKeyID) - { - keyID = ((IssuerKeyID)p).getKeyID(); - } - else if (p instanceof SignatureCreationTime) - { - creationTime = ((SignatureCreationTime)p).getTime().getTime(); - } - - hashedData[i] = p; - } - - int unhashedLength = (in.read() << 8) | in.read(); - byte[] unhashed = new byte[unhashedLength]; - - in.readFully(unhashed); - - sIn = new SignatureSubpacketInputStream( - new ByteArrayInputStream(unhashed)); - - v.removeAllElements(); - while ((sub = sIn.readPacket()) != null) - { - v.addElement(sub); - } - - unhashedData = new SignatureSubpacket[v.size()]; - - for (int i = 0; i != unhashedData.length; i++) - { - SignatureSubpacket p = (SignatureSubpacket)v.elementAt(i); - if (p instanceof IssuerKeyID) - { - keyID = ((IssuerKeyID)p).getKeyID(); - } - - unhashedData[i] = p; - } - } - else - { - throw new RuntimeException("unsupported version: " + version); - } - - fingerPrint = new byte[2]; - in.readFully(fingerPrint); - - switch (keyAlgorithm) - { - case RSA_GENERAL: - case RSA_SIGN: - MPInteger v = new MPInteger(in); - - signature = new MPInteger[1]; - signature[0] = v; - break; - case DSA: - MPInteger r = new MPInteger(in); - MPInteger s = new MPInteger(in); - - signature = new MPInteger[2]; - signature[0] = r; - signature[1] = s; - break; - case ELGAMAL_ENCRYPT: // yep, this really does happen sometimes. - case ELGAMAL_GENERAL: - MPInteger p = new MPInteger(in); - MPInteger g = new MPInteger(in); - MPInteger y = new MPInteger(in); - - signature = new MPInteger[3]; - signature[0] = p; - signature[1] = g; - signature[2] = y; - break; - case ECDSA: - MPInteger ecR = new MPInteger(in); - MPInteger ecS = new MPInteger(in); - - signature = new MPInteger[2]; - signature[0] = ecR; - signature[1] = ecS; - break; - default: - if (keyAlgorithm >= PublicKeyAlgorithmTags.EXPERIMENTAL_1 && keyAlgorithm <= PublicKeyAlgorithmTags.EXPERIMENTAL_11) - { - signature = null; - ByteArrayOutputStream bOut = new ByteArrayOutputStream(); - int ch; - while ((ch = in.read()) >= 0) - { - bOut.write(ch); - } - signatureEncoding = bOut.toByteArray(); - } - else - { - throw new IOException("unknown signature key algorithm: " + keyAlgorithm); - } - } - } - - /** - * Generate a version 4 signature packet. - * - * @param signatureType - * @param keyAlgorithm - * @param hashAlgorithm - * @param hashedData - * @param unhashedData - * @param fingerPrint - * @param signature - */ - public SignaturePacket( - int signatureType, - long keyID, - int keyAlgorithm, - int hashAlgorithm, - SignatureSubpacket[] hashedData, - SignatureSubpacket[] unhashedData, - byte[] fingerPrint, - MPInteger[] signature) - { - this(4, signatureType, keyID, keyAlgorithm, hashAlgorithm, hashedData, unhashedData, fingerPrint, signature); - } - - /** - * Generate a version 2/3 signature packet. - * - * @param signatureType - * @param keyAlgorithm - * @param hashAlgorithm - * @param fingerPrint - * @param signature - */ - public SignaturePacket( - int version, - int signatureType, - long keyID, - int keyAlgorithm, - int hashAlgorithm, - long creationTime, - byte[] fingerPrint, - MPInteger[] signature) - { - this(version, signatureType, keyID, keyAlgorithm, hashAlgorithm, null, null, fingerPrint, signature); - - this.creationTime = creationTime; - } - - public SignaturePacket( - int version, - int signatureType, - long keyID, - int keyAlgorithm, - int hashAlgorithm, - SignatureSubpacket[] hashedData, - SignatureSubpacket[] unhashedData, - byte[] fingerPrint, - MPInteger[] signature) - { - this.version = version; - this.signatureType = signatureType; - this.keyID = keyID; - this.keyAlgorithm = keyAlgorithm; - this.hashAlgorithm = hashAlgorithm; - this.hashedData = hashedData; - this.unhashedData = unhashedData; - this.fingerPrint = fingerPrint; - this.signature = signature; - - if (hashedData != null) - { - setCreationTime(); - } - } - - /** - * get the version number - */ - public int getVersion() - { - return version; - } - - /** - * return the signature type. - */ - public int getSignatureType() - { - return signatureType; - } - - /** - * return the keyID - * @return the keyID that created the signature. - */ - public long getKeyID() - { - return keyID; - } - - /** - * return the signature trailer that must be included with the data - * to reconstruct the signature - * - * @return byte[] - */ - public byte[] getSignatureTrailer() - { - byte[] trailer = null; - - if (version == 3 || version == 2) - { - trailer = new byte[5]; - - long time = creationTime / 1000; - - trailer[0] = (byte)signatureType; - trailer[1] = (byte)(time >> 24); - trailer[2] = (byte)(time >> 16); - trailer[3] = (byte)(time >> 8); - trailer[4] = (byte)(time); - } - else - { - ByteArrayOutputStream sOut = new ByteArrayOutputStream(); - - try - { - sOut.write((byte)this.getVersion()); - sOut.write((byte)this.getSignatureType()); - sOut.write((byte)this.getKeyAlgorithm()); - sOut.write((byte)this.getHashAlgorithm()); - - ByteArrayOutputStream hOut = new ByteArrayOutputStream(); - SignatureSubpacket[] hashed = this.getHashedSubPackets(); - - for (int i = 0; i != hashed.length; i++) - { - hashed[i].encode(hOut); - } - - byte[] data = hOut.toByteArray(); - - sOut.write((byte)(data.length >> 8)); - sOut.write((byte)data.length); - sOut.write(data); - - byte[] hData = sOut.toByteArray(); - - sOut.write((byte)this.getVersion()); - sOut.write((byte)0xff); - sOut.write((byte)(hData.length>> 24)); - sOut.write((byte)(hData.length >> 16)); - sOut.write((byte)(hData.length >> 8)); - sOut.write((byte)(hData.length)); - } - catch (IOException e) - { - throw new RuntimeException("exception generating trailer: " + e); - } - - trailer = sOut.toByteArray(); - } - - return trailer; - } - - /** - * return the encryption algorithm tag - */ - public int getKeyAlgorithm() - { - return keyAlgorithm; - } - - /** - * return the hashAlgorithm tag - */ - public int getHashAlgorithm() - { - return hashAlgorithm; - } - - /** - * return the signature as a set of integers - note this is normalised to be the - * ASN.1 encoding of what appears in the signature packet. - */ - public MPInteger[] getSignature() - { - return signature; - } - - /** - * Return the byte encoding of the signature section. - * @return uninterpreted signature bytes. - */ - public byte[] getSignatureBytes() - { - if (signatureEncoding == null) - { - ByteArrayOutputStream bOut = new ByteArrayOutputStream(); - BCPGOutputStream bcOut = new BCPGOutputStream(bOut); - - for (int i = 0; i != signature.length; i++) - { - try - { - bcOut.writeObject(signature[i]); - } - catch (IOException e) - { - throw new RuntimeException("internal error: " + e); - } - } - return bOut.toByteArray(); - } - else - { - return Arrays.clone(signatureEncoding); - } - } - public SignatureSubpacket[] getHashedSubPackets() - { - return hashedData; - } - - public SignatureSubpacket[] getUnhashedSubPackets() - { - return unhashedData; - } - - /** - * Return the creation time of the signature in milli-seconds. - * - * @return the creation time in millis - */ - public long getCreationTime() - { - return creationTime; - } - - public void encode( - BCPGOutputStream out) - throws IOException - { - ByteArrayOutputStream bOut = new ByteArrayOutputStream(); - BCPGOutputStream pOut = new BCPGOutputStream(bOut); - - pOut.write(version); - - if (version == 3 || version == 2) - { - pOut.write(5); // the length of the next block - - long time = creationTime / 1000; - - pOut.write(signatureType); - pOut.write((byte)(time >> 24)); - pOut.write((byte)(time >> 16)); - pOut.write((byte)(time >> 8)); - pOut.write((byte)time); - - pOut.write((byte)(keyID >> 56)); - pOut.write((byte)(keyID >> 48)); - pOut.write((byte)(keyID >> 40)); - pOut.write((byte)(keyID >> 32)); - pOut.write((byte)(keyID >> 24)); - pOut.write((byte)(keyID >> 16)); - pOut.write((byte)(keyID >> 8)); - pOut.write((byte)(keyID)); - - pOut.write(keyAlgorithm); - pOut.write(hashAlgorithm); - } - else if (version == 4) - { - pOut.write(signatureType); - pOut.write(keyAlgorithm); - pOut.write(hashAlgorithm); - - ByteArrayOutputStream sOut = new ByteArrayOutputStream(); - - for (int i = 0; i != hashedData.length; i++) - { - hashedData[i].encode(sOut); - } - - byte[] data = sOut.toByteArray(); - - pOut.write(data.length >> 8); - pOut.write(data.length); - pOut.write(data); - - sOut.reset(); - - for (int i = 0; i != unhashedData.length; i++) - { - unhashedData[i].encode(sOut); - } - - data = sOut.toByteArray(); - - pOut.write(data.length >> 8); - pOut.write(data.length); - pOut.write(data); - } - else - { - throw new IOException("unknown version: " + version); - } - - pOut.write(fingerPrint); - - if (signature != null) - { - for (int i = 0; i != signature.length; i++) - { - pOut.writeObject(signature[i]); - } - } - else - { - pOut.write(signatureEncoding); - } - - out.writePacket(SIGNATURE, bOut.toByteArray(), true); - } - - private void setCreationTime() - { - for (int i = 0; i != hashedData.length; i++) - { - if (hashedData[i] instanceof SignatureCreationTime) - { - creationTime = ((SignatureCreationTime)hashedData[i]).getTime().getTime(); - break; - } - } - } - - public static SignaturePacket fromByteArray(byte[] data) - throws IOException - { - BCPGInputStream in = new BCPGInputStream(new ByteArrayInputStream(data)); - - return new SignaturePacket(in); - } -} |