improve card decrypt with constants
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@ -59,6 +59,10 @@ public class PsoDecryptTokenOp {
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private final SecurityTokenConnection connection;
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private final JcaKeyFingerprintCalculator fingerprintCalculator;
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private static final byte[] DECIPHER_EXTERNAL_PUBLIC_KEY = Hex.decode("86");
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private static final byte[] DECIPHER_PUBLIC_KEY_DO = Hex.decode("7F49");
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private static final byte[] DECIPHER_CIPHER_DO = Hex.decode("A6");
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public static PsoDecryptTokenOp create(SecurityTokenConnection connection) {
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return new PsoDecryptTokenOp(connection, new JcaKeyFingerprintCalculator());
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}
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@ -123,21 +127,21 @@ public class PsoDecryptTokenOp {
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} else {
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dataLen = new byte[]{(byte) 0x81, (byte) psoDecipherPayload.length};
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}
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psoDecipherPayload = Arrays.concatenate(Hex.decode("86"), dataLen, psoDecipherPayload);
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psoDecipherPayload = Arrays.concatenate(DECIPHER_EXTERNAL_PUBLIC_KEY, dataLen, psoDecipherPayload);
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if (psoDecipherPayload.length < 128) {
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dataLen = new byte[]{(byte) psoDecipherPayload.length};
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} else {
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dataLen = new byte[]{(byte) 0x81, (byte) psoDecipherPayload.length};
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}
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psoDecipherPayload = Arrays.concatenate(Hex.decode("7F49"), dataLen, psoDecipherPayload);
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psoDecipherPayload = Arrays.concatenate(DECIPHER_PUBLIC_KEY_DO, dataLen, psoDecipherPayload);
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if (psoDecipherPayload.length < 128) {
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dataLen = new byte[]{(byte) psoDecipherPayload.length};
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} else {
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dataLen = new byte[]{(byte) 0x81, (byte) psoDecipherPayload.length};
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}
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psoDecipherPayload = Arrays.concatenate(Hex.decode("A6"), dataLen, psoDecipherPayload);
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psoDecipherPayload = Arrays.concatenate(DECIPHER_CIPHER_DO, dataLen, psoDecipherPayload);
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CommandApdu command = connection.getCommandFactory().createDecipherCommand(
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psoDecipherPayload, encryptedPoint.length);
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