status-im/status-keycard-java
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add duplicate key

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This commit is contained in:
Michele Balistreri
2018-11-22 17:59:20 +03:00
parent 3cad21254c
commit a85e1de2e6
1 changed files with 44 additions and 0 deletions
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lib/src/main/java/im/status/hardwallet_lite_android/wallet/WalletAppletCommandSet.java
+44
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@@ -33,6 +33,7 @@ public class WalletAppletCommandSet {
static final byte INS_GENERATE_MNEMONIC = (byte) 0xD2;
static final byte INS_REMOVE_KEY = (byte) 0xD3;
static final byte INS_GENERATE_KEY = (byte) 0xD4;
static final byte INS_DUPLICATE_KEY = (byte) 0xD5;
static final byte INS_SIGN = (byte) 0xC0;
static final byte INS_SET_PINLESS_PATH = (byte) 0xC1;
static final byte INS_EXPORT_KEY = (byte) 0xC2;
@@ -48,6 +49,11 @@ public class WalletAppletCommandSet {
public static final byte DERIVE_P1_SOURCE_PARENT = (byte) 0x40;
public static final byte DERIVE_P1_SOURCE_CURRENT = (byte) 0x80;
static final byte DUPLICATE_KEY_P1_START = 0x00;
static final byte DUPLICATE_KEY_P1_ADD_ENTROPY = 0x01;
static final byte DUPLICATE_KEY_P1_EXPORT = 0x02;
static final byte DUPLICATE_KEY_P1_IMPORT = 0x03;
public static final int GENERATE_MNEMONIC_12_WORDS = 0x04;
public static final int GENERATE_MNEMONIC_15_WORDS = 0x05;
public static final int GENERATE_MNEMONIC_18_WORDS = 0x06;
@@ -449,6 +455,44 @@ public class WalletAppletCommandSet {
return secureChannel.transmit(apduChannel, generateKey);
}
/**
* Sends a DUPLICATE KEY APDU. The P1 is set to 00, P2 to the entropy count and the data is the first entropy piece.
* This starts a duplication session. Requires an open Secure Channel and authenticated PIN.
*
* @param entropyCount the number of entropy pieces to expect, including the one in this APDU
* @param firstEntropy a random 32-byte number
* @return the raw card response
* @throws IOException communication error
*/
public APDUResponse duplicateKeyStart(int entropyCount, byte[] firstEntropy) throws IOException {
APDUCommand duplicateKeyStart = secureChannel.protectedCommand(0x80, INS_DUPLICATE_KEY, DUPLICATE_KEY_P1_START, entropyCount, firstEntropy);
return secureChannel.transmit(apduChannel, duplicateKeyStart);
}
/**
* Sends a DUPLICATE KEY APDU. The P1 is set to 01 and the data is the entropy. This adds entropy and does not require
* a Secure Channel or authenticated PIN.
*
* @param entropy a random 32-byte number
* @return the raw card response
* @throws IOException communication error
*/
public APDUResponse duplicateKeyAddEntropy(byte[] entropy) throws IOException {
APDUCommand duplicateKeyAddEntropy = new APDUCommand(0x80, INS_DUPLICATE_KEY, DUPLICATE_KEY_P1_ADD_ENTROPY, 0, secureChannel.oneShotEncrypt(entropy));
return apduChannel.send(duplicateKeyAddEntropy);
}
/**
* Sends a DUPLICATE KEY APDU. The P1 is set to 02. This exports the encrypted master key including chaining code.
*
* @return the raw card response
* @throws IOException communication error
*/
public APDUResponse duplicateKeyExport() throws IOException {
APDUCommand duplicateKeyExport = secureChannel.protectedCommand(0x80, INS_DUPLICATE_KEY, DUPLICATE_KEY_P1_EXPORT, 0, new byte[0]);
return secureChannel.transmit(apduChannel, duplicateKeyExport);
}
/**
* Sends a SIGN APDU. This signs a precomputed hash so the input must be exactly 32-bytes long.
*