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Minor refactorings in VersionedChecksummedBytes.

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This commit is contained in:
Piotr Włodarek 2014-05-18 23:19:55 +02:00
parent e91cc443e9
commit f7e982cee1
1 changed files with 8 additions and 7 deletions
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15
core/src/main/java/com/google/bitcoin/core/VersionedChecksummedBytes.java
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@ -33,14 +33,15 @@ public class VersionedChecksummedBytes {
protected byte[] bytes; protected byte[] bytes;
protected VersionedChecksummedBytes(String encoded) throws AddressFormatException { protected VersionedChecksummedBytes(String encoded) throws AddressFormatException {
byte[] tmp = Base58.decodeChecked(encoded); byte[] versionAndDataBytes = Base58.decodeChecked(encoded);
version = tmp[0] & 0xFF; byte versionByte = versionAndDataBytes[0];
bytes = new byte[tmp.length - 1]; version = versionByte & 0xFF;
System.arraycopy(tmp, 1, bytes, 0, tmp.length - 1); bytes = new byte[versionAndDataBytes.length - 1];
System.arraycopy(versionAndDataBytes, 1, bytes, 0, versionAndDataBytes.length - 1);
} }
protected VersionedChecksummedBytes(int version, byte[] bytes) { protected VersionedChecksummedBytes(int version, byte[] bytes) {
checkArgument(version < 256 && version >= 0); checkArgument(version >= 0 && version < 256);
this.version = version; this.version = version;
this.bytes = bytes; this.bytes = bytes;
} }
@ -52,8 +53,8 @@ public class VersionedChecksummedBytes {
byte[] addressBytes = new byte[1 + bytes.length + 4]; byte[] addressBytes = new byte[1 + bytes.length + 4];
addressBytes[0] = (byte) version; addressBytes[0] = (byte) version;
System.arraycopy(bytes, 0, addressBytes, 1, bytes.length); System.arraycopy(bytes, 0, addressBytes, 1, bytes.length);
byte[] check = Utils.doubleDigest(addressBytes, 0, bytes.length + 1); byte[] checksum = Utils.doubleDigest(addressBytes, 0, bytes.length + 1);
System.arraycopy(check, 0, addressBytes, bytes.length + 1, 4); System.arraycopy(checksum, 0, addressBytes, bytes.length + 1, 4);
return Base58.encode(addressBytes); return Base58.encode(addressBytes);
} }