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Diffstat (limited to 'crypto/openssh/scard/Ssh.java')
| -rw-r--r-- | crypto/openssh/scard/Ssh.java | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/crypto/openssh/scard/Ssh.java b/crypto/openssh/scard/Ssh.java new file mode 100644 index 000000000000..3692b9bbb4fa --- /dev/null +++ b/crypto/openssh/scard/Ssh.java @@ -0,0 +1,143 @@ +// $Id: Ssh.java,v 1.2 2001/07/30 20:08:14 rees Exp $ +// +// Ssh.java +// SSH / smartcard integration project, smartcard side +// +// Tomoko Fukuzawa, created, Feb., 2000 +// +// Naomaru Itoi, modified, Apr., 2000 +// + +// copyright 2000 +// the regents of the university of michigan +// all rights reserved +// +// permission is granted to use, copy, create derivative works +// and redistribute this software and such derivative works +// for any purpose, so long as the name of the university of +// michigan is not used in any advertising or publicity +// pertaining to the use or distribution of this software +// without specific, written prior authorization. if the +// above copyright notice or any other identification of the +// university of michigan is included in any copy of any +// portion of this software, then the disclaimer below must +// also be included. +// +// this software is provided as is, without representation +// from the university of michigan as to its fitness for any +// purpose, and without warranty by the university of +// michigan of any kind, either express or implied, including +// without limitation the implied warranties of +// merchantability and fitness for a particular purpose. the +// regents of the university of michigan shall not be liable +// for any damages, including special, indirect, incidental, or +// consequential damages, with respect to any claim arising +// out of or in connection with the use of the software, even +// if it has been or is hereafter advised of the possibility of +// such damages. + +import javacard.framework.*; +import javacardx.framework.*; +import javacardx.crypto.*; + +public class Ssh extends javacard.framework.Applet +{ + /* constants declaration */ + // code of CLA byte in the command APDU header + static final byte Ssh_CLA =(byte)0x05; + + // codes of INS byte in the command APDU header + static final byte DECRYPT = (byte) 0x10; + static final byte GET_KEYLENGTH = (byte) 0x20; + static final byte GET_PUBKEY = (byte) 0x30; + static final byte GET_RESPONSE = (byte) 0xc0; + + /* instance variables declaration */ + static final short keysize = 1024; + + //RSA_CRT_PrivateKey rsakey; + AsymKey rsakey; + CyberflexFile file; + CyberflexOS os; + + byte buffer[]; + + static byte[] keyHdr = {(byte)0xC2, (byte)0x01, (byte)0x05}; + + private Ssh() + { + file = new CyberflexFile(); + os = new CyberflexOS(); + + rsakey = new RSA_CRT_PrivateKey (keysize); + + if ( ! rsakey.isSupportedLength (keysize) ) + ISOException.throwIt (ISO.SW_WRONG_LENGTH); + + register(); + } // end of the constructor + + public boolean select() { + if (!rsakey.isInitialized()) + rsakey.setKeyInstance ((short)0xc8, (short)0x10); + + return true; + } + + public static void install(APDU apdu) + { + new Ssh(); // create a Ssh applet instance (card) + } // end of install method + + public static void main(String args[]) { + ISOException.throwIt((short) 0x9000); + } + + public void process(APDU apdu) + { + // APDU object carries a byte array (buffer) to + // transfer incoming and outgoing APDU header + // and data bytes between card and CAD + buffer = apdu.getBuffer(); + + // verify that if the applet can accept this + // APDU message + // NI: change suggested by Wayne Dyksen, Purdue + if (buffer[ISO.OFFSET_INS] == ISO.INS_SELECT) + ISOException.throwIt(ISO.SW_NO_ERROR); + + switch (buffer[ISO.OFFSET_INS]) { + case DECRYPT: + if (buffer[ISO.OFFSET_CLA] != Ssh_CLA) + ISOException.throwIt(ISO.SW_CLA_NOT_SUPPORTED); + //decrypt (apdu); + short size = (short) (buffer[ISO.OFFSET_LC] & 0x00FF); + + if (apdu.setIncomingAndReceive() != size) + ISOException.throwIt (ISO.SW_WRONG_LENGTH); + + rsakey.cryptoUpdate (buffer, (short) ISO.OFFSET_CDATA, size, + buffer, (short) ISO.OFFSET_CDATA); + + apdu.setOutgoingAndSend ((short) ISO.OFFSET_CDATA, size); + return; + case GET_PUBKEY: + file.selectFile((short)(0x3f<<8)); // select root + file.selectFile((short)(('s'<<8)|'h')); // select public key file + os.readBinaryFile (buffer, (short)0, (short)0, (short)(keysize/8)); + apdu.setOutgoingAndSend((short)0, (short)(keysize/8)); + return; + case GET_KEYLENGTH: + buffer[0] = (byte)((keysize >> 8) & 0xff); + buffer[1] = (byte)(keysize & 0xff); + apdu.setOutgoingAndSend ((short)0, (short)2); + return; + case GET_RESPONSE: + return; + default: + ISOException.throwIt (ISO.SW_INS_NOT_SUPPORTED); + } + + } // end of process method + +} // end of class Ssh |