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javacard-api-samples [2017/05/11 03:30] jinbiao |
javacard-api-samples [2017/05/13 02:30] |
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| - | ====== Hash Sample Code ====== | ||
| - | [[https://javacardos.com/javacardforum/download/file.php?id=540|Download Sample Code]] [[ http://javacardos.com/javacardforum/viewtopic.php?f=31&t=739|Discussion]] | ||
| - | |||
| - | <code java> | ||
| - | |||
| - | /* | ||
| - | * @file HashSample.java | ||
| - | * @version v1.0 | ||
| - | * Package AID: 4A617661436172644F53 | ||
| - | * Applet AID: 4A617661436172644F5305 | ||
| - | * @brief The ALgorithm of Hash Sample Code in JavaCard API Specification | ||
| - | * @comment The purpose of this example is only used to show the usage of API functions and there is no practical significance. | ||
| - | * @copyright Copyright(C) 2016 JavaCardOS Technologies Co., Ltd. All rights reserved. | ||
| - | */ | ||
| - | | ||
| - | package JavaCardOS.Sample.Algorithm; | ||
| - | |||
| - | import javacard.framework.*; | ||
| - | import javacard.security.*; | ||
| - | import javacardx.crypto.*; | ||
| - | |||
| - | public class HashSample extends Applet | ||
| - | { | ||
| - | private static final byte INS_GEN_HASH = (byte)0x50; | ||
| - | |||
| - | private byte[] flags; | ||
| - | private static final short OFF_INS = (short)0; | ||
| - | private static final short OFF_P1 = (short)1; | ||
| - | private static final short OFF_P2 = (short)2; | ||
| - | private static final short OFF_LEN = (short)3; | ||
| - | private static final short FLAGS_SIZE = (short)5; | ||
| - | |||
| - | private InitializedMessageDigest sha1; | ||
| - | private InitializedMessageDigest sha256; | ||
| - | private InitializedMessageDigest sha512; | ||
| - | |||
| - | public HashSample() | ||
| - | { | ||
| - | flags = JCSystem.makeTransientByteArray(FLAGS_SIZE, JCSystem.CLEAR_ON_DESELECT); | ||
| - | //Creates a InitializedMessageDigest object instance of the ALG_SHA algorithm. | ||
| - | sha1 = MessageDigest.getInitializedMessageDigestInstance(MessageDigest.ALG_SHA, false); | ||
| - | //Creates a InitializedMessageDigest object instance of the ALG_SHA_256 algorithm. | ||
| - | sha256 = MessageDigest.getInitializedMessageDigestInstance(MessageDigest.ALG_SHA_256, false); | ||
| - | //Creates a InitializedMessageDigest object instance of the ALG_SHA_512 algorithm. | ||
| - | sha512 = MessageDigest.getInitializedMessageDigestInstance(MessageDigest.ALG_SHA_512, false); | ||
| - | JCSystem.requestObjectDeletion(); | ||
| - | } | ||
| - | public static void install(byte[] bArray, short bOffset, byte bLength) | ||
| - | { | ||
| - | new HashSample().register(bArray, (short) (bOffset + 1), bArray[bOffset]); | ||
| - | } | ||
| - | |||
| - | public void process(APDU apdu) | ||
| - | { | ||
| - | if (selectingApplet()) | ||
| - | { | ||
| - | return; | ||
| - | } | ||
| - | |||
| - | byte[] buf = apdu.getBuffer(); | ||
| - | short len = apdu.setIncomingAndReceive(); | ||
| - | switch (buf[ISO7816.OFFSET_INS]) | ||
| - | { | ||
| - | case (byte)INS_GEN_HASH: | ||
| - | generateHash(apdu, len); | ||
| - | break; | ||
| - | default: | ||
| - | ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED); | ||
| - | } | ||
| - | } | ||
| - | |||
| - | //Generate Hash | ||
| - | private void generateHash(APDU apdu, short len) | ||
| - | { | ||
| - | byte[] buffer = apdu.getBuffer(); | ||
| - | boolean hasMoreCmd = (buffer[ISO7816.OFFSET_P1] & 0x80) != 0; | ||
| - | InitializedMessageDigest hash = null; | ||
| - | short resultLen = 0; | ||
| - | short offset = ISO7816.OFFSET_CDATA; | ||
| - | switch (buffer[ISO7816.OFFSET_P1] & 0x7f) | ||
| - | { | ||
| - | case 0: | ||
| - | hash = sha1; | ||
| - | resultLen = MessageDigest.LENGTH_SHA; | ||
| - | break; | ||
| - | case 1: | ||
| - | hash = sha256; | ||
| - | resultLen = MessageDigest.LENGTH_SHA_256; | ||
| - | break; | ||
| - | case 2: | ||
| - | hash = sha512; | ||
| - | resultLen = MessageDigest.LENGTH_SHA_512; | ||
| - | if (hash == null) | ||
| - | { | ||
| - | ISOException.throwIt(ISO7816.SW_CONDITIONS_NOT_SATISFIED); | ||
| - | } | ||
| - | break; | ||
| - | default: | ||
| - | ISOException.throwIt(ISO7816.SW_INCORRECT_P1P2); | ||
| - | break; | ||
| - | } | ||
| - | |||
| - | if (buffer[ISO7816.OFFSET_P2] == 0) //first block | ||
| - | { | ||
| - | //Reset the MessageDigest object to the initial state. | ||
| - | hash.reset(); | ||
| - | } | ||
| - | |||
| - | if (hasMoreCmd) | ||
| - | { | ||
| - | //Accumulate a hash of the input data. | ||
| - | hash.update(buffer, offset, len); | ||
| - | } | ||
| - | else | ||
| - | { | ||
| - | //Generate a hash of all the input data. | ||
| - | short ret = hash.doFinal(buffer, offset, len, buffer, (short)0); | ||
| - | Util.arrayFillNonAtomic(flags, (short)0, (short)flags.length, (byte)0); | ||
| - | apdu.setOutgoingAndSend((short)0, ret); | ||
| - | } | ||
| - | } | ||
| - | |||
| - | } | ||
| - | </code> | ||
| - | The test script of Hash is as follows: Download Test Script | ||
| - | <code java> | ||
| - | |||
| - | //The test script of Hash | ||
| - | //Copyright(C) JavaCardOS Technologies Co., Ltd. All rights reserved. | ||
| - | |||
| - | //Hash Select Applet | ||
| - | 00A404000B4A617661436172644F530500; | ||
| - | //SHA1 | ||
| - | //expect:44ABF22AF275548BCE3639C5FE3CDFCFFFF305AA9000 | ||
| - | 80500000A36713E26AA669E98027D9FE54B457551A40599E921D39DB8970DA6FA2E18E785697375F3A63ADAE803B6021C1EB3FFFFA07D8AAD424C075284735B7C29E021E656EA345104DAA8880916117F608B1493AEA4233E00BE47ACA552E65EE76643659D69EBB74CC2720871124077B7576DAE4D0E1603F3C6D8F77810CA2AFD17E6B3BB672E9EF48EE1D9DA3F01AD998565CFFA3FB5A781D235E38B319958B17166212F565F8; | ||
| - | //SHA256 | ||
| - | 80508100C8ECE47FD746C16AD454D0D509979BF65DB051109F815EACBC8F3F2636AA956CD1D1780390500D4BDF2B5B0312BF5A0F0EA74D7946DD52B7EA21382C5A9F90F1E1CC07D4A091F3A1C8AB2BA10D521C61571819B4BA15F3FBA841CAA4652122F1BCA639FBF15299F6F69CE9B6E19608729ECD5DC9E17068025FB59D983E7973F6CA27B87F69DA27D1D1C63C4B78D447CD4C8CC0BEA538DA5478465A0FCDEFAA8773162968F273C6BBC1F0CD67B95300F7CA1EEA9DEDB3707759BCA912FACAF02D1F3C37BF73639E3B2E; | ||
| - | 80508101C8E444128C5D5C797F4B846EA02B53F56CDF31A8AD546C6E3662888BD3F3D6D980684854D93883DCD2DA3637A8E6AA5618779BD9CED347D5204EC4D4FC6B961D1F458136882D9CA82D95A702EC2D9E20C44B8EAD4590A8E745C994A2D5130890744398BF8284D063F74280D6544757DDDA24B32DFAD3B82E0E9AA0FE463251B9E52935F8AD85469797AA68BCC87EFC14C1CAB260D6E49E31E18B8FEF37129C20DBC1FFE7F27827CB779508BA3018B64EE105324FBF0A83782762097E90F90F4EBFD19F963AA49A88FE; | ||
| - | //expect:959727571EE31D59A2F504A90B38B0103F350BAD27100844381C4B77609635789000 | ||
| - | 805001023CCB08DB745EAC12A29DDB009E8E8F8C49E8B8B23930D2CAF722BC0D6B52C85594130F247D9807E86C59577D5CB8E9F4ADE541931BFF0E1CED7CFF536E; | ||
| - | |||
| - | Follow us | ||
| - | |||
| - | </code> | ||
