Examples with ASN1Integer org.spongycastle.asn1.ASN1Integer used on opensource projects

Example 26 with ASN1Integer

use of org.spongycastle.asn1.ASN1Integer in project keystore-explorer by kaikramer.

the class Pkcs8Util method getEncryptionType.

/**
 * Detect if a PKCS #8 private key is encrypted or not.
 *
 * @param is
 *            Input stream containing PKCS #8 private key
 * @return Encryption type or null if not a valid PKCS #8 private key
 * @throws IOException
 *             If an I/O problem occurred
 */
public static EncryptionType getEncryptionType(InputStream is) throws IOException {
    byte[] pkcs8 = ReadUtil.readFully(is);
    PemInfo pemInfo = PemUtil.decode(new ByteArrayInputStream(pkcs8));
    // PEM encoded?
    if (pemInfo != null) {
        String pemType = pemInfo.getType();
        // Encrypted in pem format?
        if (pemType.equals(Pkcs8Util.PKCS8_ENC_PVK_PEM_TYPE)) {
            return ENCRYPTED;
        } else // Unencrypted in pem format?
        if (pemType.equals(Pkcs8Util.PKCS8_UNENC_PVK_PEM_TYPE)) {
            return UNENCRYPTED;
        }
    }
    // In ASN.1 format?
    try {
        // Read in an ASN.1 and check structure against the following
        ASN1Primitive key = ASN1Primitive.fromByteArray(pkcs8);
        if (key instanceof ASN1Sequence) {
            ASN1Sequence sequence = (ASN1Sequence) key;
            // May be unencrypted
            if ((sequence.size() == 3) || (sequence.size() == 4)) {
                // @formatter:off
                /*
					 * Unencrypted PKCS #8 Private Key:
					 *
					 * PrivateKeyInfo ::= ASN1Sequence { version Version,
					 * privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
					 * privateKey PrivateKey, attributes [0] IMPLICIT Attributes
					 * OPTIONAL }
					 *
					 * Version ::= ASN1Integer PrivateKeyAlgorithmIdentifier ::=
					 * AlgorithmIdentifier PrivateKey ::= OCTET STRING
					 * Attributes ::= SET OF Attribute
					 */
                // @formatter:on
                Object obj1 = sequence.getObjectAt(0);
                Object obj2 = sequence.getObjectAt(1);
                Object obj3 = sequence.getObjectAt(2);
                if (!(obj1 instanceof ASN1Integer)) {
                    return null;
                }
                ASN1Integer version = (ASN1Integer) obj1;
                if (!version.getValue().equals(BigInteger.ZERO)) {
                    return null;
                }
                if (!(obj2 instanceof ASN1Sequence)) {
                    return null;
                }
                if (!sequenceIsAlgorithmIdentifier((ASN1Sequence) obj2)) {
                    return null;
                }
                if (!(obj3 instanceof ASN1OctetString)) {
                    return null;
                }
                return UNENCRYPTED;
            } else // May be encrypted
            if (sequence.size() == 2) {
                // @formatter:off
                /*
					 * Encrypted PKCS #8 Private Key:
					 *
					 * EncryptedPrivateKeyInfo ::= ASN1Sequence {
					 * encryptionAlgorithm EncryptionAlgorithmIdentifier,
					 * encryptedData EncryptedData }
					 *
					 * EncryptionAlgorithmIdentifier ::= AlgorithmIdentifier
					 * EncryptedData ::= OCTET STRING
					 */
                // @formatter:on
                Object obj1 = sequence.getObjectAt(0);
                Object obj2 = sequence.getObjectAt(1);
                if (!(obj1 instanceof ASN1Sequence)) {
                    return null;
                }
                if (!sequenceIsAlgorithmIdentifier((ASN1Sequence) obj1)) {
                    return null;
                }
                if (!(obj2 instanceof ASN1OctetString)) {
                    return null;
                }
                return ENCRYPTED;
            }
        }
    } catch (Exception ex) {
        // Structure not as expected for PKCS #8
        return null;
    }
    return null;
}

Example 27 with ASN1Integer

use of org.spongycastle.asn1.ASN1Integer in project keystore-explorer by kaikramer.

the class Spkac method encodeRsaPublicKeyAsBitString.

private byte[] encodeRsaPublicKeyAsBitString(RSAPublicKey rsaPublicKey) throws SpkacException {
    try {
        ASN1EncodableVector vec = new ASN1EncodableVector();
        vec.add(new ASN1Integer(rsaPublicKey.getModulus()));
        vec.add(new ASN1Integer(rsaPublicKey.getPublicExponent()));
        DERSequence derSequence = new DERSequence(vec);
        return derSequence.getEncoded(ASN1Encoding.DER);
    } catch (Exception ex) {
        throw new SpkacException(res.getString("NoEncodeRsaPublicKey.exception.message"), ex);
    }
}

Example 28 with ASN1Integer

use of org.spongycastle.asn1.ASN1Integer in project keystore-explorer by kaikramer.

the class CryptoFileUtil method detectKeyStoreType.

/**
 * Detect the KeyStore type contained in the supplied file.
 *
 * @param is
 *            Input stream to detect type for
 * @return KeyStore type or null if none matched
 * @throws IOException
 *             If an I/O problem occurred
 */
public static KeyStoreType detectKeyStoreType(InputStream is) throws IOException {
    byte[] contents = ReadUtil.readFully(is);
    try (DataInputStream dis = new DataInputStream(new ByteArrayInputStream(contents))) {
        // If less than 4 bytes are available it isn't a KeyStore
        if (dis.available() < 4) {
            return null;
        }
        // Read first integer (4 bytes)
        int i1 = dis.readInt();
        // Test for JKS - starts with appropriate magic number
        if (i1 == JKS_MAGIC_NUMBER) {
            return JKS;
        }
        // Test for JCEKS - starts with appropriate magic number
        if (i1 == JCEKS_MAGIC_NUMBER) {
            return JCEKS;
        }
        // Both start with a version number of 0, 1 or 2
        if ((i1 == 0) || (i1 == 1) || (i1 == 2)) {
            if (contents.length < 26) {
                // Insufficient bytes to be BKS or UBER
                return null;
            }
            // Skip to 21st from last byte (file length minus 21 and the 4 bytes already read)
            dis.skip(contents.length - 25);
            // Read what may be the null byte
            if (dis.readByte() == 0) {
                // Found null byte - BKS/BKS-V1
                if (i1 == 1) {
                    return BKS_V1;
                } else {
                    return BKS;
                }
            } else {
                // No null byte - UBER
                return UBER;
            }
        }
    }
    // @formatter:off
    /*
		 * Test for PKCS #12. ASN.1 should look like this:
		 *
		 * PFX ::= ASN1Sequence { version ASN1Integer {v3(3)}(v3,...), authSafe
		 * ContentInfo, macData MacData OPTIONAL
		 */
    // @formatter:on
    ASN1Primitive pfx = null;
    try {
        pfx = ASN1Primitive.fromByteArray(contents);
    } catch (IOException e) {
        // if it cannot be parsed as ASN1, it is certainly not a pfx key store
        return null;
    }
    // Is a sequence...
    if ((pfx != null) && (pfx instanceof ASN1Sequence)) {
        // Has two or three components...
        ASN1Sequence sequence = (ASN1Sequence) pfx;
        if ((sequence.size() == 2) || (sequence.size() == 3)) {
            // ...the first of which is a version of 3
            ASN1Encodable firstComponent = sequence.getObjectAt(0);
            if (firstComponent instanceof ASN1Integer) {
                ASN1Integer version = (ASN1Integer) firstComponent;
                if (version.getValue().intValue() == 3) {
                    return PKCS12;
                }
            }
        }
    }
    // KeyStore type not recognised
    return null;
}

Example 29 with ASN1Integer

use of org.spongycastle.asn1.ASN1Integer in project xipki by xipki.

the class XmlX509CertprofileUtil method buildPolicyConstrains.

// method buildGeneralSubtree
public static ASN1Sequence buildPolicyConstrains(PolicyConstraints type) throws CertprofileException {
    ParamUtil.requireNonNull("type", type);
    Integer requireExplicitPolicy = type.getRequireExplicitPolicy();
    if (requireExplicitPolicy != null && requireExplicitPolicy < 0) {
        throw new CertprofileException("negative requireExplicitPolicy is not allowed: " + requireExplicitPolicy);
    }
    Integer inhibitPolicyMapping = type.getInhibitPolicyMapping();
    if (inhibitPolicyMapping != null && inhibitPolicyMapping < 0) {
        throw new CertprofileException("negative inhibitPolicyMapping is not allowed: " + inhibitPolicyMapping);
    }
    if (requireExplicitPolicy == null && inhibitPolicyMapping == null) {
        return null;
    }
    final boolean explicit = false;
    ASN1EncodableVector vec = new ASN1EncodableVector();
    if (requireExplicitPolicy != null) {
        vec.add(new DERTaggedObject(explicit, 0, new ASN1Integer(BigInteger.valueOf(requireExplicitPolicy))));
    }
    if (inhibitPolicyMapping != null) {
        vec.add(new DERTaggedObject(explicit, 1, new ASN1Integer(BigInteger.valueOf(inhibitPolicyMapping))));
    }
    return new DERSequence(vec);
}

Example 30 with ASN1Integer

use of org.spongycastle.asn1.ASN1Integer in project xipki by xipki.

the class BaseX509Certprofile method checkPublicKey.

@Override
public SubjectPublicKeyInfo checkPublicKey(SubjectPublicKeyInfo publicKey) throws BadCertTemplateException {
    ParamUtil.requireNonNull("publicKey", publicKey);
    Map<ASN1ObjectIdentifier, KeyParametersOption> keyAlgorithms = getKeyAlgorithms();
    if (CollectionUtil.isEmpty(keyAlgorithms)) {
        return publicKey;
    }
    ASN1ObjectIdentifier keyType = publicKey.getAlgorithm().getAlgorithm();
    if (!keyAlgorithms.containsKey(keyType)) {
        throw new BadCertTemplateException("key type " + keyType.getId() + " is not permitted");
    }
    KeyParametersOption keyParamsOption = keyAlgorithms.get(keyType);
    if (keyParamsOption instanceof AllowAllParametersOption) {
        return publicKey;
    } else if (keyParamsOption instanceof ECParamatersOption) {
        ECParamatersOption ecOption = (ECParamatersOption) keyParamsOption;
        // parameters
        ASN1Encodable algParam = publicKey.getAlgorithm().getParameters();
        ASN1ObjectIdentifier curveOid;
        if (algParam instanceof ASN1ObjectIdentifier) {
            curveOid = (ASN1ObjectIdentifier) algParam;
            if (!ecOption.allowsCurve(curveOid)) {
                throw new BadCertTemplateException(String.format("EC curve %s (OID: %s) is not allowed", AlgorithmUtil.getCurveName(curveOid), curveOid.getId()));
            }
        } else {
            throw new BadCertTemplateException("only namedCurve EC public key is supported");
        }
        // point encoding
        if (ecOption.pointEncodings() != null) {
            byte[] keyData = publicKey.getPublicKeyData().getBytes();
            if (keyData.length < 1) {
                throw new BadCertTemplateException("invalid publicKeyData");
            }
            byte pointEncoding = keyData[0];
            if (!ecOption.pointEncodings().contains(pointEncoding)) {
                throw new BadCertTemplateException(String.format("not accepted EC point encoding '%s'", pointEncoding));
            }
        }
        byte[] keyData = publicKey.getPublicKeyData().getBytes();
        try {
            checkEcSubjectPublicKeyInfo(curveOid, keyData);
        } catch (BadCertTemplateException ex) {
            throw ex;
        } catch (Exception ex) {
            LogUtil.warn(LOG, ex, "checkEcSubjectPublicKeyInfo");
            throw new BadCertTemplateException(String.format("invalid public key: %s", ex.getMessage()));
        }
        return publicKey;
    } else if (keyParamsOption instanceof RSAParametersOption) {
        RSAParametersOption rsaOption = (RSAParametersOption) keyParamsOption;
        ASN1Integer modulus;
        try {
            ASN1Sequence seq = ASN1Sequence.getInstance(publicKey.getPublicKeyData().getBytes());
            modulus = ASN1Integer.getInstance(seq.getObjectAt(0));
        } catch (IllegalArgumentException ex) {
            throw new BadCertTemplateException("invalid publicKeyData");
        }
        int modulusLength = modulus.getPositiveValue().bitLength();
        if ((rsaOption.allowsModulusLength(modulusLength))) {
            return publicKey;
        }
    } else if (keyParamsOption instanceof DSAParametersOption) {
        DSAParametersOption dsaOption = (DSAParametersOption) keyParamsOption;
        ASN1Encodable params = publicKey.getAlgorithm().getParameters();
        if (params == null) {
            throw new BadCertTemplateException("null Dss-Parms is not permitted");
        }
        int plength;
        int qlength;
        try {
            ASN1Sequence seq = ASN1Sequence.getInstance(params);
            ASN1Integer rsaP = ASN1Integer.getInstance(seq.getObjectAt(0));
            ASN1Integer rsaQ = ASN1Integer.getInstance(seq.getObjectAt(1));
            plength = rsaP.getPositiveValue().bitLength();
            qlength = rsaQ.getPositiveValue().bitLength();
        } catch (IllegalArgumentException | ArrayIndexOutOfBoundsException ex) {
            throw new BadCertTemplateException("illegal Dss-Parms");
        }
        boolean match = dsaOption.allowsPlength(plength);
        if (match) {
            match = dsaOption.allowsQlength(qlength);
        }
        if (match) {
            return publicKey;
        }
    } else {
        throw new RuntimeException(String.format("should not reach here, unknown KeyParametersOption %s", keyParamsOption));
    }
    throw new BadCertTemplateException("the given publicKey is not permitted");
}