Examples with ECPoint java.security.spec.ECPoint used on opensource projects

Example 66 with ECPoint

use of java.security.spec.ECPoint in project tink by google.

the class TestUtil method generateEciesAeadHkdfPrivKey.

/**
 * @return a freshly generated {@code EciesAeadHkdfPrivateKey} constructed with specified
 *     parameters.
 */
public static EciesAeadHkdfPrivateKey generateEciesAeadHkdfPrivKey(EllipticCurveType curve, HashType hashType, EcPointFormat pointFormat, KeyTemplate demKeyTemplate, byte[] salt) throws Exception {
    ECParameterSpec ecParams;
    switch(curve) {
        case NIST_P256:
            ecParams = EllipticCurves.getNistP256Params();
            break;
        case NIST_P384:
            ecParams = EllipticCurves.getNistP384Params();
            break;
        case NIST_P521:
            ecParams = EllipticCurves.getNistP521Params();
            break;
        default:
            throw new NoSuchAlgorithmException("Curve not implemented:" + curve);
    }
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance("EC");
    keyGen.initialize(ecParams);
    KeyPair keyPair = keyGen.generateKeyPair();
    ECPublicKey pubKey = (ECPublicKey) keyPair.getPublic();
    ECPrivateKey privKey = (ECPrivateKey) keyPair.getPrivate();
    ECPoint w = pubKey.getW();
    EciesAeadHkdfPublicKey eciesPubKey = createEciesAeadHkdfPubKey(curve, hashType, pointFormat, demKeyTemplate, w.getAffineX().toByteArray(), w.getAffineY().toByteArray(), salt);
    return createEciesAeadHkdfPrivKey(eciesPubKey, privKey.getS().toByteArray());
}

Example 67 with ECPoint

use of java.security.spec.ECPoint in project xipki by xipki.

the class P11SM3WithSM2SignatureSpi method engineInitSign.

@Override
protected void engineInitSign(PrivateKey privateKey) throws InvalidKeyException {
    if (!(privateKey instanceof P11PrivateKey)) {
        throw new InvalidKeyException("privateKey is not instanceof " + P11PrivateKey.class.getName());
    }
    this.signingKey = (P11PrivateKey) privateKey;
    if (!(signingKey.getPublicKey() instanceof ECPublicKey)) {
        throw new InvalidKeyException("only EC key is allowed");
    }
    ECPublicKey pubKey = (ECPublicKey) signingKey.getPublicKey();
    if (!GMUtil.isSm2primev2Curve(pubKey.getParams().getCurve())) {
        throw new InvalidKeyException("only EC key of curve sm2primev2 is allowed");
    }
    String algo = privateKey.getAlgorithm();
    if (!("EC".equals(algo) || "ECDSA".equals(algo))) {
        throw new InvalidKeyException("privateKey is not an EC private key: " + algo);
    }
    byte[] userId = (paramSpec == null) ? "1234567812345678".getBytes() : paramSpec.getId();
    if (signingKey.supportsMechanism(PKCS11Constants.CKM_VENDOR_SM2)) {
        mechanism = PKCS11Constants.CKM_VENDOR_SM2;
        outputStream = new DigestOutputStream(HashAlgo.SM3.createDigest());
        p11Params = null;
        ECPoint w = pubKey.getW();
        sm2Z = GMUtil.getSM2Z(userId, GMObjectIdentifiers.sm2p256v1, w.getAffineX(), w.getAffineY());
        try {
            outputStream.write(sm2Z, 0, sm2Z.length);
        } catch (IOException ex) {
            throw new InvalidKeyException("could not compute Z of SM2");
        }
    } else if (signingKey.supportsMechanism(PKCS11Constants.CKM_VENDOR_SM2_SM3)) {
        mechanism = PKCS11Constants.CKM_VENDOR_SM2_SM3;
        outputStream = new ByteArrayOutputStream();
        p11Params = new P11ByteArrayParams(userId);
    } else {
        throw new InvalidKeyException("privateKey and algorithm does not match");
    }
    this.signingKey = (P11PrivateKey) privateKey;
}

Example 68 with ECPoint

use of java.security.spec.ECPoint in project leshan by eclipse.

the class SecurityDeserializer method deserialize.

@Override
public SecurityInfo deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
    if (json == null) {
        return null;
    }
    SecurityInfo info = null;
    if (json.isJsonObject()) {
        JsonObject object = (JsonObject) json;
        String endpoint;
        if (object.has("endpoint")) {
            endpoint = object.get("endpoint").getAsString();
        } else {
            throw new JsonParseException("Missing endpoint");
        }
        JsonObject psk = (JsonObject) object.get("psk");
        JsonObject rpk = (JsonObject) object.get("rpk");
        JsonPrimitive x509 = object.getAsJsonPrimitive("x509");
        if (psk != null) {
            // PSK Deserialization
            String identity;
            if (psk.has("identity")) {
                identity = psk.get("identity").getAsString();
            } else {
                throw new JsonParseException("Missing PSK identity");
            }
            byte[] key;
            try {
                key = Hex.decodeHex(psk.get("key").getAsString().toCharArray());
            } catch (IllegalArgumentException e) {
                throw new JsonParseException("key parameter must be a valid hex string", e);
            }
            info = SecurityInfo.newPreSharedKeyInfo(endpoint, identity, key);
        } else if (rpk != null) {
            PublicKey key;
            try {
                byte[] x = Hex.decodeHex(rpk.get("x").getAsString().toCharArray());
                byte[] y = Hex.decodeHex(rpk.get("y").getAsString().toCharArray());
                String params = rpk.get("params").getAsString();
                AlgorithmParameters algoParameters = AlgorithmParameters.getInstance("EC");
                algoParameters.init(new ECGenParameterSpec(params));
                ECParameterSpec parameterSpec = algoParameters.getParameterSpec(ECParameterSpec.class);
                KeySpec keySpec = new ECPublicKeySpec(new ECPoint(new BigInteger(x), new BigInteger(y)), parameterSpec);
                key = KeyFactory.getInstance("EC").generatePublic(keySpec);
            } catch (IllegalArgumentException | InvalidKeySpecException | NoSuchAlgorithmException | InvalidParameterSpecException e) {
                throw new JsonParseException("Invalid security info content", e);
            }
            info = SecurityInfo.newRawPublicKeyInfo(endpoint, key);
        } else if (x509 != null && x509.getAsBoolean()) {
            info = SecurityInfo.newX509CertInfo(endpoint);
        } else {
            throw new JsonParseException("Invalid security info content");
        }
    }
    return info;
}

Example 69 with ECPoint

use of java.security.spec.ECPoint in project web3sdk by FISCO-BCOS.

the class PEMManager method getPublicKey.

public PublicKey getPublicKey() throws InvalidKeySpecException, NoSuchAlgorithmException, NoSuchProviderException {
    ECPrivateKey privateKey = (ECPrivateKey) getPrivateKey();
    ECParameterSpec params = privateKey.getParams();
    org.bouncycastle.jce.spec.ECParameterSpec bcSpec = org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util.convertSpec(params, false);
    org.bouncycastle.math.ec.ECPoint q = bcSpec.getG().multiply(privateKey.getS());
    org.bouncycastle.math.ec.ECPoint bcW = bcSpec.getCurve().decodePoint(q.getEncoded(false));
    ECPoint w = new ECPoint(bcW.getAffineXCoord().toBigInteger(), bcW.getAffineYCoord().toBigInteger());
    ECPublicKeySpec keySpec = new ECPublicKeySpec(w, tryFindNamedCurveSpec(params));
    return (PublicKey) KeyFactory.getInstance("EC", BouncyCastleProvider.PROVIDER_NAME).generatePublic(keySpec);
}

Example 70 with ECPoint

use of java.security.spec.ECPoint in project web3sdk by FISCO-BCOS.

the class P12Manager method getPublicKey.

public PublicKey getPublicKey() throws UnrecoverableKeyException, KeyStoreException, NoSuchAlgorithmException, InvalidKeySpecException, NoSuchProviderException {
    ECPrivateKey privateKey = (ECPrivateKey) getPrivateKey();
    ECParameterSpec params = privateKey.getParams();
    org.bouncycastle.jce.spec.ECParameterSpec bcSpec = org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util.convertSpec(params, false);
    org.bouncycastle.math.ec.ECPoint q = bcSpec.getG().multiply(privateKey.getS());
    org.bouncycastle.math.ec.ECPoint bcW = bcSpec.getCurve().decodePoint(q.getEncoded(false));
    ECPoint w = new ECPoint(bcW.getAffineXCoord().toBigInteger(), bcW.getAffineYCoord().toBigInteger());
    ECPublicKeySpec keySpec = new ECPublicKeySpec(w, tryFindNamedCurveSpec(params));
    return (PublicKey) KeyFactory.getInstance("EC", BouncyCastleProvider.PROVIDER_NAME).generatePublic(keySpec);
}