Examples with AlgorithmIdentifier org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier used on opensource projects

Example 41 with AlgorithmIdentifier

use of org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class AlgorithmUtil method getMacAlgId.

public static AlgorithmIdentifier getMacAlgId(String macAlgName) throws NoSuchAlgorithmException {
    ParamUtil.requireNonNull("macAlgName", macAlgName);
    String algoS = macAlgName.toUpperCase();
    algoS = canonicalizeAlgoText(algoS);
    ASN1ObjectIdentifier oid = macAlgNameToOidMap.get(algoS);
    if (oid == null) {
        throw new NoSuchAlgorithmException("unsupported signature algorithm " + algoS);
    }
    return new AlgorithmIdentifier(oid, DERNull.INSTANCE);
}

Example 42 with AlgorithmIdentifier

use of org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class AlgorithmUtil method getRSASigAlgId.

// CHECKSTYLE:SKIP
private static AlgorithmIdentifier getRSASigAlgId(HashAlgo hashAlgo, boolean mgf1) throws NoSuchAlgorithmException {
    ParamUtil.requireNonNull("hashAlgo", hashAlgo);
    if (mgf1) {
        return buildRSAPSSAlgId(hashAlgo);
    }
    ASN1ObjectIdentifier sigAlgOid = digestToRSASigAlgMap.get(hashAlgo);
    if (sigAlgOid == null) {
        throw new NoSuchAlgorithmException("unsupported hash " + hashAlgo + " for RSA key");
    }
    return new AlgorithmIdentifier(sigAlgOid, DERNull.INSTANCE);
}

Example 43 with AlgorithmIdentifier

use of org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class KeyUtil method createECPublicKey.

// CHECKSTYLE:SKIP
public static ECPublicKey createECPublicKey(byte[] encodedAlgorithmIdParameters, byte[] encodedPoint) throws InvalidKeySpecException {
    ParamUtil.requireNonNull("encodedAlgorithmIdParameters", encodedAlgorithmIdParameters);
    ParamUtil.requireNonNull("encodedPoint", encodedPoint);
    ASN1Encodable algParams;
    if (encodedAlgorithmIdParameters[0] == 6) {
        algParams = ASN1ObjectIdentifier.getInstance(encodedAlgorithmIdParameters);
    } else {
        algParams = X962Parameters.getInstance(encodedAlgorithmIdParameters);
    }
    AlgorithmIdentifier algId = new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, algParams);
    SubjectPublicKeyInfo spki = new SubjectPublicKeyInfo(algId, encodedPoint);
    X509EncodedKeySpec keySpec;
    try {
        keySpec = new X509EncodedKeySpec(spki.getEncoded());
    } catch (IOException ex) {
        throw new InvalidKeySpecException(ex.getMessage(), ex);
    }
    KeyFactory kf;
    try {
        kf = KeyFactory.getInstance("EC", "BC");
    } catch (NoSuchAlgorithmException | NoSuchProviderException ex) {
        throw new InvalidKeySpecException(ex.getMessage(), ex);
    }
    return (ECPublicKey) kf.generatePublic(keySpec);
}

Example 44 with AlgorithmIdentifier

use of org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class SignerUtil method createPSSRSASigner.

// CHECKSTYLE:SKIP
public static PSSSigner createPSSRSASigner(AlgorithmIdentifier sigAlgId, AsymmetricBlockCipher cipher) throws XiSecurityException {
    ParamUtil.requireNonNull("sigAlgId", sigAlgId);
    if (!PKCSObjectIdentifiers.id_RSASSA_PSS.equals(sigAlgId.getAlgorithm())) {
        throw new XiSecurityException("signature algorithm " + sigAlgId.getAlgorithm() + " is not allowed");
    }
    AlgorithmIdentifier digAlgId;
    try {
        digAlgId = AlgorithmUtil.extractDigesetAlgFromSigAlg(sigAlgId);
    } catch (NoSuchAlgorithmException ex) {
        throw new XiSecurityException(ex.getMessage(), ex);
    }
    RSASSAPSSparams param = RSASSAPSSparams.getInstance(sigAlgId.getParameters());
    AlgorithmIdentifier mfgDigAlgId = AlgorithmIdentifier.getInstance(param.getMaskGenAlgorithm().getParameters());
    Digest dig = getDigest(digAlgId);
    Digest mfgDig = getDigest(mfgDigAlgId);
    int saltSize = param.getSaltLength().intValue();
    int trailerField = param.getTrailerField().intValue();
    AsymmetricBlockCipher tmpCipher = (cipher == null) ? new RSABlindedEngine() : cipher;
    return new PSSSigner(tmpCipher, dig, mfgDig, saltSize, getTrailer(trailerField));
}

Example 45 with AlgorithmIdentifier

use of org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class CaClientExample method generateEcKeypair.

protected static MyKeypair generateEcKeypair() throws GeneralSecurityException {
    KeyPairGenerator kpGen = KeyPairGenerator.getInstance("EC");
    ECGenParameterSpec spec = new ECGenParameterSpec("secp256r1");
    kpGen.initialize(spec);
    KeyPair kp = kpGen.generateKeyPair();
    ECPublicKey pub = (ECPublicKey) kp.getPublic();
    byte[] keyData = new byte[65];
    keyData[0] = 4;
    copyArray(pub.getW().getAffineX().toByteArray(), keyData, 1, 32);
    copyArray(pub.getW().getAffineY().toByteArray(), keyData, 33, 32);
    AlgorithmIdentifier algId = new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, SECObjectIdentifiers.secp256r1);
    SubjectPublicKeyInfo subjectPublicKeyInfo = new SubjectPublicKeyInfo(algId, keyData);
    return new MyKeypair(kp.getPrivate(), subjectPublicKeyInfo);
}