Java Code Examples for sun.security.util.ECUtil#decodePoint()

The following examples show how to use sun.security.util.ECUtil#decodePoint() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: ECKeyPairGenerator.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

private KeyPair generateKeyPairNative(SecureRandom random)
    throws Exception {

    ECParameterSpec ecParams = (ECParameterSpec) params;
    byte[] encodedParams = ECUtil.encodeECParameterSpec(null, ecParams);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    random.nextBytes(seed);
    Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);

    // The 'params' object supplied above is equivalent to the native
    // one so there is no need to fetch it.
    // keyBytes[0] is the encoding of the native private key
    BigInteger s = new BigInteger(1, (byte[]) keyBytes[0]);

    PrivateKey privateKey = new ECPrivateKeyImpl(s, ecParams);

    // keyBytes[1] is the encoding of the native public key
    byte[] pubKey = (byte[]) keyBytes[1];
    ECPoint w = ECUtil.decodePoint(pubKey, ecParams.getCurve());
    PublicKey publicKey = new ECPublicKeyImpl(w, ecParams);

    return new KeyPair(publicKey, privateKey);
}

Example 2

Source File: ECKeyPairGenerator.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

private KeyPair generateKeyPairNative(SecureRandom random)
    throws Exception {

    ECParameterSpec ecParams = (ECParameterSpec) params;
    byte[] encodedParams = ECUtil.encodeECParameterSpec(null, ecParams);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    random.nextBytes(seed);
    Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);

    // The 'params' object supplied above is equivalent to the native
    // one so there is no need to fetch it.
    // keyBytes[0] is the encoding of the native private key
    BigInteger s = new BigInteger(1, (byte[]) keyBytes[0]);

    PrivateKey privateKey = new ECPrivateKeyImpl(s, ecParams);

    // keyBytes[1] is the encoding of the native public key
    byte[] pubKey = (byte[]) keyBytes[1];
    ECPoint w = ECUtil.decodePoint(pubKey, ecParams.getCurve());
    PublicKey publicKey = new ECPublicKeyImpl(w, ecParams);

    return new KeyPair(publicKey, privateKey);
}

Example 3

Source File: SM2PublicKeyImpl.java From julongchain with Apache License 2.0

6 votes

@Override
protected void parseKeyBits() throws InvalidKeyException {
    AlgorithmParameters algorithmParameters = this.algid.getParameters();
    if (algorithmParameters == null) {
        throw new InvalidKeyException("EC domain parameters must be encoded in the algorithm identifier");
    } else {
        try {
            this.params = algorithmParameters.getParameterSpec(ECParameterSpec.class);
            this.w = ECUtil.decodePoint(this.key, this.params.getCurve());
        } catch (IOException var3) {
            throw new InvalidKeyException("Invalid EC key", var3);
        } catch (InvalidParameterSpecException var4) {
            throw new InvalidKeyException("Invalid EC key", var4);
        }
    }
}

Example 4

Source File: ECKeyPairGenerator.java From jdk8u-dev-jdk with GNU General Public License v2.0

5 votes

@Override
public KeyPair generateKeyPair() {

    byte[] encodedParams =
        ECUtil.encodeECParameterSpec(null, (ECParameterSpec)params);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    if (random == null) {
        random = JCAUtil.getSecureRandom();
    }
    random.nextBytes(seed);

    try {

        Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);

        // The 'params' object supplied above is equivalent to the native
        // one so there is no need to fetch it.
        // keyBytes[0] is the encoding of the native private key
        BigInteger s = new BigInteger(1, (byte[])keyBytes[0]);

        PrivateKey privateKey =
            new ECPrivateKeyImpl(s, (ECParameterSpec)params);

        // keyBytes[1] is the encoding of the native public key
        ECPoint w = ECUtil.decodePoint((byte[])keyBytes[1],
            ((ECParameterSpec)params).getCurve());
        PublicKey publicKey =
            new ECPublicKeyImpl(w, (ECParameterSpec)params);

        return new KeyPair(publicKey, privateKey);

    } catch (Exception e) {
        throw new ProviderException(e);
    }
}

Example 5

Source File: ECDHKeyExchange.java From Bytecoder with Apache License 2.0

5 votes

SecretKey getAgreedSecret(
        byte[] encodedPoint) throws SSLHandshakeException {
    try {
        ECParameterSpec params = publicKey.getParams();
        ECPoint point =
                ECUtil.decodePoint(encodedPoint, params.getCurve());
        KeyFactory kf = KeyFactory.getInstance("EC");
        ECPublicKeySpec spec = new ECPublicKeySpec(point, params);
        PublicKey peerPublicKey = kf.generatePublic(spec);
        return getAgreedSecret(peerPublicKey);
    } catch (GeneralSecurityException | java.io.IOException e) {
        throw (SSLHandshakeException) new SSLHandshakeException(
            "Could not generate secret").initCause(e);
    }
}

Example 6

Source File: ECKeyPairGenerator.java From jdk8u-jdk with GNU General Public License v2.0

5 votes

@Override
public KeyPair generateKeyPair() {

    byte[] encodedParams =
        ECUtil.encodeECParameterSpec(null, (ECParameterSpec)params);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    if (random == null) {
        random = JCAUtil.getSecureRandom();
    }
    random.nextBytes(seed);

    try {

        Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);

        // The 'params' object supplied above is equivalent to the native
        // one so there is no need to fetch it.
        // keyBytes[0] is the encoding of the native private key
        BigInteger s = new BigInteger(1, (byte[])keyBytes[0]);

        PrivateKey privateKey =
            new ECPrivateKeyImpl(s, (ECParameterSpec)params);

        // keyBytes[1] is the encoding of the native public key
        ECPoint w = ECUtil.decodePoint((byte[])keyBytes[1],
            ((ECParameterSpec)params).getCurve());
        PublicKey publicKey =
            new ECPublicKeyImpl(w, (ECParameterSpec)params);

        return new KeyPair(publicKey, privateKey);

    } catch (Exception e) {
        throw new ProviderException(e);
    }
}

Example 7

Source File: ECKeyPairGenerator.java From jdk8u-jdk with GNU General Public License v2.0

5 votes

@Override
public KeyPair generateKeyPair() {

    byte[] encodedParams =
        ECUtil.encodeECParameterSpec(null, (ECParameterSpec)params);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    if (random == null) {
        random = JCAUtil.getSecureRandom();
    }
    random.nextBytes(seed);

    try {

        Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);

        // The 'params' object supplied above is equivalent to the native
        // one so there is no need to fetch it.
        // keyBytes[0] is the encoding of the native private key
        BigInteger s = new BigInteger(1, (byte[])keyBytes[0]);

        PrivateKey privateKey =
            new ECPrivateKeyImpl(s, (ECParameterSpec)params);

        // keyBytes[1] is the encoding of the native public key
        ECPoint w = ECUtil.decodePoint((byte[])keyBytes[1],
            ((ECParameterSpec)params).getCurve());
        PublicKey publicKey =
            new ECPublicKeyImpl(w, (ECParameterSpec)params);

        return new KeyPair(publicKey, privateKey);

    } catch (Exception e) {
        throw new ProviderException(e);
    }
}

Example 8

Source File: ECKeyPairGenerator.java From jdk8u60 with GNU General Public License v2.0

5 votes

@Override
public KeyPair generateKeyPair() {

    byte[] encodedParams =
        ECUtil.encodeECParameterSpec(null, (ECParameterSpec)params);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    if (random == null) {
        random = JCAUtil.getSecureRandom();
    }
    random.nextBytes(seed);

    try {

        Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);

        // The 'params' object supplied above is equivalent to the native
        // one so there is no need to fetch it.
        // keyBytes[0] is the encoding of the native private key
        BigInteger s = new BigInteger(1, (byte[])keyBytes[0]);

        PrivateKey privateKey =
            new ECPrivateKeyImpl(s, (ECParameterSpec)params);

        // keyBytes[1] is the encoding of the native public key
        ECPoint w = ECUtil.decodePoint((byte[])keyBytes[1],
            ((ECParameterSpec)params).getCurve());
        PublicKey publicKey =
            new ECPublicKeyImpl(w, (ECParameterSpec)params);

        return new KeyPair(publicKey, privateKey);

    } catch (Exception e) {
        throw new ProviderException(e);
    }
}

Example 9

Source File: ECKeyPairGenerator.java From hottub with GNU General Public License v2.0

5 votes

@Override
public KeyPair generateKeyPair() {

    byte[] encodedParams =
        ECUtil.encodeECParameterSpec(null, (ECParameterSpec)params);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    if (random == null) {
        random = JCAUtil.getSecureRandom();
    }
    random.nextBytes(seed);

    try {

        Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);

        // The 'params' object supplied above is equivalent to the native
        // one so there is no need to fetch it.
        // keyBytes[0] is the encoding of the native private key
        BigInteger s = new BigInteger(1, (byte[])keyBytes[0]);

        PrivateKey privateKey =
            new ECPrivateKeyImpl(s, (ECParameterSpec)params);

        // keyBytes[1] is the encoding of the native public key
        ECPoint w = ECUtil.decodePoint((byte[])keyBytes[1],
            ((ECParameterSpec)params).getCurve());
        PublicKey publicKey =
            new ECPublicKeyImpl(w, (ECParameterSpec)params);

        return new KeyPair(publicKey, privateKey);

    } catch (Exception e) {
        throw new ProviderException(e);
    }
}

Example 10

Source File: JsseJce.java From jdk8u60 with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve)
        throws java.io.IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 11

Source File: P11ECKeyFactory.java From jdk8u60 with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 12

Source File: JsseJce.java From openjdk-jdk8u with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve)
        throws java.io.IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 13

Source File: JsseJce.java From jdk8u-jdk with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve)
        throws java.io.IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 14

Source File: P11ECKeyFactory.java From jdk8u_jdk with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 15

Source File: P11ECKeyFactory.java From jdk8u-jdk with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 16

Source File: P11ECKeyFactory.java From jdk8u-jdk with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 17

Source File: P11ECKeyFactory.java From jdk8u-dev-jdk with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 18

Source File: P11ECKeyFactory.java From openjdk-8-source with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 19

Source File: P11ECKeyFactory.java From hottub with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
    return ECUtil.decodePoint(encoded, curve);
}

Example 20

Source File: P11ECKeyFactory.java From openjdk-8 with GNU General Public License v2.0

4 votes

static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
    return ECUtil.decodePoint(encoded, curve);
}