sshd-common/src/main/java/org/apache/sshd/common/config/keys/impl/ECDSAPublicKeyEntryDecoder.java [165:191]:
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    @Override
    public KeyFactory getKeyFactoryInstance() throws GeneralSecurityException {
        if (SecurityUtils.isECCSupported()) {
            return SecurityUtils.getKeyFactory(KeyUtils.EC_ALGORITHM);
        } else {
            throw new NoSuchProviderException("ECC not supported");
        }
    }

    @Override
    public KeyPair generateKeyPair(int keySize) throws GeneralSecurityException {
        ECCurves curve = ECCurves.fromCurveSize(keySize);
        if (curve == null) {
            throw new InvalidKeySpecException("Unknown curve for key size=" + keySize);
        }

        KeyPairGenerator gen = getKeyPairGenerator();
        gen.initialize(curve.getParameters());
        return gen.generateKeyPair();
    }

    @Override
    public KeyPairGenerator getKeyPairGenerator() throws GeneralSecurityException {
        if (SecurityUtils.isECCSupported()) {
            return SecurityUtils.getKeyPairGenerator(KeyUtils.EC_ALGORITHM);
        } else {
            throw new NoSuchProviderException("ECC not supported");
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sshd-common/src/main/java/org/apache/sshd/common/config/keys/loader/openssh/OpenSSHECDSAPrivateKeyEntryDecoder.java [149:175]:
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    @Override
    public KeyFactory getKeyFactoryInstance() throws GeneralSecurityException {
        if (SecurityUtils.isECCSupported()) {
            return SecurityUtils.getKeyFactory(KeyUtils.EC_ALGORITHM);
        } else {
            throw new NoSuchProviderException("ECC not supported");
        }
    }

    @Override
    public KeyPair generateKeyPair(int keySize) throws GeneralSecurityException {
        ECCurves curve = ECCurves.fromCurveSize(keySize);
        if (curve == null) {
            throw new InvalidKeySpecException("Unknown curve for key size=" + keySize);
        }

        KeyPairGenerator gen = getKeyPairGenerator();
        gen.initialize(curve.getParameters());
        return gen.generateKeyPair();
    }

    @Override
    public KeyPairGenerator getKeyPairGenerator() throws GeneralSecurityException {
        if (SecurityUtils.isECCSupported()) {
            return SecurityUtils.getKeyPairGenerator(KeyUtils.EC_ALGORITHM);
        } else {
            throw new NoSuchProviderException("ECC not supported");
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