35 lines
1.2 KiB
Java
35 lines
1.2 KiB
Java
package com.luminiasoft.bitshares;
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import org.bitcoinj.core.ECKey;
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import java.io.UnsupportedEncodingException;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.util.Base64;
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/**
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* Created by nelson on 11/19/16.
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*/
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public class BrainKey {
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private ECKey mPrivateKey;
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public BrainKey(String words, int sequence) {
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String encoded = String.format("%s %d", words, sequence);
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try {
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MessageDigest md = MessageDigest.getInstance("SHA-512");
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byte[] bytes = md.digest(encoded.getBytes("UTF-8"));
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MessageDigest sha256 = MessageDigest.getInstance("SHA-256");
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byte[] result = sha256.digest(bytes);
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mPrivateKey = ECKey.fromPrivate(result);
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} catch (NoSuchAlgorithmException e) {
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System.out.println("NoSuchAlgotithmException. Msg: " + e.getMessage());
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} catch (UnsupportedEncodingException e) {
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System.out.println("UnsupportedEncodingException. Msg: " + e.getMessage());
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}
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}
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public String getPublicKey() {
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return Base64.getEncoder().encodeToString(mPrivateKey.getPubKey());
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}
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}
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