Examples with Section com.google.api.client.util.PemReader.Section used on opensource projects

Example 1 with Section

use of com.google.api.client.util.PemReader.Section in project google-auth-library-java by google.

the class ServiceAccountCredentials method privateKeyFromPkcs8.

/**
 * Helper to convert from a PKCS#8 String to an RSA private key
 */
static PrivateKey privateKeyFromPkcs8(String privateKeyPkcs8) throws IOException {
    Reader reader = new StringReader(privateKeyPkcs8);
    Section section = PemReader.readFirstSectionAndClose(reader, "PRIVATE KEY");
    if (section == null) {
        throw new IOException("Invalid PKCS#8 data.");
    }
    byte[] bytes = section.getBase64DecodedBytes();
    PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(bytes);
    Exception unexpectedException;
    try {
        KeyFactory keyFactory = SecurityUtils.getRsaKeyFactory();
        return keyFactory.generatePrivate(keySpec);
    } catch (NoSuchAlgorithmException | InvalidKeySpecException exception) {
        unexpectedException = exception;
    }
    throw new IOException("Unexpected exception reading PKCS#8 data", unexpectedException);
}

Example 2 with Section

use of com.google.api.client.util.PemReader.Section in project google-api-java-client by google.

the class GoogleCredential method privateKeyFromPkcs8.

@Beta
private static PrivateKey privateKeyFromPkcs8(String privateKeyPem) throws IOException {
    Reader reader = new StringReader(privateKeyPem);
    Section section = PemReader.readFirstSectionAndClose(reader, "PRIVATE KEY");
    if (section == null) {
        throw new IOException("Invalid PKCS8 data.");
    }
    byte[] bytes = section.getBase64DecodedBytes();
    PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(bytes);
    Exception unexpectedException = null;
    try {
        KeyFactory keyFactory = SecurityUtils.getRsaKeyFactory();
        PrivateKey privateKey = keyFactory.generatePrivate(keySpec);
        return privateKey;
    } catch (NoSuchAlgorithmException exception) {
        unexpectedException = exception;
    } catch (InvalidKeySpecException exception) {
        unexpectedException = exception;
    }
    throw OAuth2Utils.exceptionWithCause(new IOException("Unexpected exception reading PKCS data"), unexpectedException);
}

Example 3 with Section

use of com.google.api.client.util.PemReader.Section in project photon-model by vmware.

the class GCPUtils method privateKeyFromPkcs8.

/**
 * The method validates an input string of private key and generate a java PrivateKey
 * object. The method is non-blocking.
 * @param privateKeyPem The private key in string format.
 * @return The private key in java PrivateKey object format.
 * @throws IOException When input key is not valid.
 */
public static PrivateKey privateKeyFromPkcs8(String privateKeyPem) throws IOException {
    StringReader reader = new StringReader(privateKeyPem);
    Section section = PemReader.readFirstSectionAndClose(reader, PRIVATE_KEY);
    if (section == null) {
        throw new IOException("Invalid PKCS8 data.");
    }
    try {
        byte[] decodedKey = section.getBase64DecodedBytes();
        PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(decodedKey);
        KeyFactory keyFactory = SecurityUtils.getRsaKeyFactory();
        return keyFactory.generatePrivate(keySpec);
    } catch (Exception e) {
        throw new IOException("Unexpected exception reading PKCS data", e);
    }
}