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[#6] cover the cryptography module with junit tests

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Signed-off-by: Ori Bruk <o.bruk@yadro.com>
This commit is contained in:
Ori Bruk 2024-08-21 10:57:47 +03:00 • committed by Bruk Ori
parent 0d76332f01
commit c9a54d56fb
8 changed files with 432 additions and 34 deletions
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55
cryptography/src/main/java/info/frostfs/sdk/KeyExtension.java
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@ -31,6 +31,8 @@ import static org.bouncycastle.util.BigIntegers.fromUnsignedByteArray;
public class KeyExtension {
public static final byte NEO_ADDRESS_VERSION = 0x35;
private static final String CURVE_NAME = "secp256r1";
private static final String SECURITY_ALGORITHM = "EC";
private static final int PS_IN_HASH160 = 0x0C;
private static final int DECODE_ADDRESS_LENGTH = 21;
private static final int COMPRESSED_PUBLIC_KEY_LENGTH = 33;
@ -38,6 +40,13 @@ public class KeyExtension {
private static final int CHECK_SIG_DESCRIPTOR = ByteBuffer
.wrap(getSha256("System.Crypto.CheckSig".getBytes(StandardCharsets.US_ASCII)))
.order(ByteOrder.LITTLE_ENDIAN).getInt();
private static final String ERROR_VALUE_MISSING_MESSAGE = "Input value is missing";
private static final String ERROR_ENCODED_COMPRESSED_PUBLIC_KEY_TEMPLATE =
"PublicKey isn't encoded compressed public key. Expected length=%s, actual=%s";
private static final String ERROR_UNCOMPRESSED_PUBLIC_KEY_TEMPLATE =
"Compress argument isn't uncompressed public key. Expected length=%s, actual=%s";
private static final String ERROR_COMPRESSED_PUBLIC_KEY_TEMPLATE =
"Decompress argument isn't compressed public key. Expected length=%s, actual=%s";
private KeyExtension() {
}
@ -45,10 +54,9 @@ public class KeyExtension {
public static byte[] compress(byte[] publicKey) {
checkInputValue(publicKey);
if (publicKey.length != UNCOMPRESSED_PUBLIC_KEY_LENGTH) {
throw new IllegalArgumentException(
String.format("Compress argument isn't uncompressed public key. Expected length=%s, actual=%s",
UNCOMPRESSED_PUBLIC_KEY_LENGTH, publicKey.length)
);
throw new IllegalArgumentException(String.format(
ERROR_UNCOMPRESSED_PUBLIC_KEY_TEMPLATE, UNCOMPRESSED_PUBLIC_KEY_LENGTH, publicKey.length
));
}
var secp256R1 = SECNamedCurves.getByOID(SECObjectIdentifiers.secp256r1);
@ -58,7 +66,7 @@ public class KeyExtension {
public static byte[] getPrivateKeyFromWIF(String wif) {
if (StringUtils.isEmpty(wif)) {
throw new IllegalArgumentException("Input value is missing");
throw new IllegalArgumentException(ERROR_VALUE_MISSING_MESSAGE);
}
var data = Base58.base58CheckDecode(wif);
@ -87,11 +95,11 @@ public class KeyExtension {
ECPrivateKeyParameters ecParams = new ECPrivateKeyParameters(fromUnsignedByteArray(privateKey), domain);
ECParameterSpec ecParameterSpec = new ECNamedCurveSpec(
"secp256r1", params.getCurve(), params.getG(), params.getN(), params.getH()
CURVE_NAME, params.getCurve(), params.getG(), params.getN(), params.getH()
);
ECPrivateKeySpec privateKeySpec = new ECPrivateKeySpec(ecParams.getD(), ecParameterSpec);
try {
KeyFactory kf = KeyFactory.getInstance("EC");
KeyFactory kf = KeyFactory.getInstance(SECURITY_ALGORITHM);
return kf.generatePrivate(privateKeySpec);
} catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
throw new RuntimeException(e);
@ -103,8 +111,7 @@ public class KeyExtension {
if (publicKey.length != COMPRESSED_PUBLIC_KEY_LENGTH) {
throw new IllegalArgumentException(
String.format("Decompress argument isn't compressed public key. Expected length=%s, actual=%s",
COMPRESSED_PUBLIC_KEY_LENGTH, publicKey.length)
String.format(ERROR_COMPRESSED_PUBLIC_KEY_TEMPLATE, COMPRESSED_PUBLIC_KEY_LENGTH, publicKey.length)
);
}
@ -118,13 +125,13 @@ public class KeyExtension {
publicParams.getQ().getRawXCoord().toBigInteger(), publicParams.getQ().getRawYCoord().toBigInteger()
);
ECParameterSpec ecParameterSpec = new ECNamedCurveSpec(
"secp256r1", secp256R1.getCurve(), secp256R1.getG(), secp256R1.getN(),
secp256R1.getH(), secp256R1.getSeed()
CURVE_NAME, secp256R1.getCurve(), secp256R1.getG(), secp256R1.getN(), secp256R1.getH(),
secp256R1.getSeed()
);
ECPublicKeySpec publicKeySpec = new ECPublicKeySpec(point, ecParameterSpec);
try {
KeyFactory kf = KeyFactory.getInstance("EC");
KeyFactory kf = KeyFactory.getInstance(SECURITY_ALGORITHM);
return kf.generatePublic(publicKeySpec);
} catch (Exception e) {
throw new RuntimeException(e);
@ -141,19 +148,18 @@ public class KeyExtension {
public static String publicKeyToAddress(byte[] publicKey) {
checkInputValue(publicKey);
if (publicKey.length != COMPRESSED_PUBLIC_KEY_LENGTH) {
throw new IllegalArgumentException(
String.format("PublicKey isn't encoded compressed public key. Expected length=%s, actual=%s",
COMPRESSED_PUBLIC_KEY_LENGTH, publicKey.length)
);
throw new IllegalArgumentException(String.format(
ERROR_ENCODED_COMPRESSED_PUBLIC_KEY_TEMPLATE, COMPRESSED_PUBLIC_KEY_LENGTH, publicKey.length
));
}
return toAddress(getScriptHash(publicKey), NEO_ADDRESS_VERSION);
return toAddress(getScriptHash(publicKey));
}
private static String toAddress(byte[] scriptHash, byte version) {
private static String toAddress(byte[] scriptHash) {
checkInputValue(scriptHash);
byte[] data = new byte[DECODE_ADDRESS_LENGTH];
data[0] = version;
data[0] = NEO_ADDRESS_VERSION;
System.arraycopy(scriptHash, 0, data, 1, scriptHash.length);
return Base58.base58CheckEncode(data);
}
@ -171,10 +177,9 @@ public class KeyExtension {
private static byte[] createSignatureRedeemScript(byte[] publicKey) {
checkInputValue(publicKey);
if (publicKey.length != COMPRESSED_PUBLIC_KEY_LENGTH) {
throw new IllegalArgumentException(
String.format("PublicKey isn't encoded compressed public key. Expected length=%s, actual=%s",
COMPRESSED_PUBLIC_KEY_LENGTH, publicKey.length)
);
throw new IllegalArgumentException(String.format(
ERROR_ENCODED_COMPRESSED_PUBLIC_KEY_TEMPLATE, COMPRESSED_PUBLIC_KEY_LENGTH, publicKey.length
));
}
var script = new byte[]{PS_IN_HASH160, COMPRESSED_PUBLIC_KEY_LENGTH}; //PUSHDATA1 33
@ -186,8 +191,8 @@ public class KeyExtension {
}
private static void checkInputValue(byte[] data) {
if (isNull(data)) {
throw new IllegalArgumentException("Input value is missing");
if (isNull(data) || data.length == 0) {
throw new IllegalArgumentException(ERROR_VALUE_MISSING_MESSAGE);
}
}
}