org.bouncycastle.asn1.DLSequence.getObjectAt()方法的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中org.bouncycastle.asn1.DLSequence.getObjectAt()方法的一些代码示例，展示了DLSequence.getObjectAt()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。DLSequence.getObjectAt()方法的具体详情如下：
包路径：org.bouncycastle.asn1.DLSequence
类名称：DLSequence
方法名：getObjectAt

DLSequence.getObjectAt介绍

暂无

代码示例

代码示例来源：origin: apache/pdfbox

DERTaggedObject derTagged = (DERTaggedObject) obj.getObjectAt(0);
derTagged = (DERTaggedObject) derTagged.getObject();
derTagged = (DERTaggedObject) derTagged.getObject();

代码示例来源：origin: org.apache.ratis/ratis-proto-shaded

private static <T> T findObject(DLSequence sequence, ASN1ObjectIdentifier oid, Class<T> type) {
  for (ASN1Encodable element : sequence) {
    if (!(element instanceof DLSequence)) {
      continue;
    }
    DLSequence subSequence = (DLSequence) element;
    if (subSequence.size() != 2) {
      continue;
    }
    ASN1Encodable key = subSequence.getObjectAt(0);
    ASN1Encodable value = subSequence.getObjectAt(1);
    if (key.equals(oid) && type.isInstance(value)) {
      return type.cast(value);
    }
  }
  return null;
}

代码示例来源：origin: AgNO3/jcifs-ng

/**
 * 
 * @param type
 * @param sequence
 * @param index
 * @return sequence element cast to type
 * @throws PACDecodingException
 */
public static <T extends ASN1Primitive> T as ( Class<T> type, DLSequence sequence, int index ) throws PACDecodingException {
  return as(type, sequence.getObjectAt(index));
}

代码示例来源：origin: org.codelibs/jcifs

/**
 * 
 * @param type
 * @param sequence
 * @param index
 * @return sequence element cast to type
 * @throws PACDecodingException
 */
public static <T extends ASN1Primitive> T as ( Class<T> type, DLSequence sequence, int index ) throws PACDecodingException {
  return as(type, sequence.getObjectAt(index));
}

代码示例来源：origin: eu.eu-emi.security/canl

/**
 * Used to get the AC extension object.
 * 
 * @return The AC object
 */
public AttributeCertificate[] getAttributeCertificates()
{
  DLSequence seqac = (DLSequence) ac.getObjectAt(0);
  AttributeCertificate[] ret = new AttributeCertificate[seqac.size()];
  for (int i=0; i<ret.length; i++)
    ret[i] = AttributeCertificate.getInstance(seqac.getObjectAt(i));
  return ret;
}

代码示例来源：origin: org.demoiselle.signer/policy-engine

@Override
public void parse(ASN1Primitive derObject) {
  this.algorithm = new ObjectIdentifier();
  DLSequence derSequence = (DLSequence) derObject;
  this.algorithm.parse(derSequence.getObjectAt(0).toASN1Primitive());
}

代码示例来源：origin: iNPUTmice/ComplianceTester

private static OtherName parseOtherName(byte[] otherName) {
  try {
    ASN1Primitive asn1Primitive = ASN1Primitive.fromByteArray(otherName);
    if (asn1Primitive instanceof DERTaggedObject) {
      ASN1Primitive inner = ((DERTaggedObject) asn1Primitive).getObject();
      if (inner instanceof DLSequence) {
        DLSequence sequence = (DLSequence) inner;
        if (sequence.size() >= 2 && sequence.getObjectAt(1) instanceof DERTaggedObject) {
          String oid = sequence.getObjectAt(0).toString();
          ASN1Primitive value = ((DERTaggedObject) sequence.getObjectAt(1)).getObject();
          if (value instanceof DERUTF8String) {
            return new OtherName(oid, ((DERUTF8String) value).getString());
          } else if (value instanceof DERIA5String) {
            return new OtherName(oid, ((DERIA5String) value).getString());
          }
        }
      }
    }
    return null;
  } catch (IOException e) {
    return null;
  }
}

代码示例来源：origin: CryptoKass/dilithium

public static ECDSASignature decodeFromDER(byte[] bytes) {
  ASN1InputStream decoder = null;
  try {
    decoder = new ASN1InputStream(bytes);
    DLSequence seq = (DLSequence) decoder.readObject();
    if (seq == null)
      throw new RuntimeException("Reached past end of ASN.1 stream.");
    ASN1Integer r, s;
    try {
      r = (ASN1Integer) seq.getObjectAt(0);
      s = (ASN1Integer) seq.getObjectAt(1);
    } catch (ClassCastException e) {
      throw new IllegalArgumentException(e);
    }
    // OpenSSL deviates from the DER spec by interpreting these values as unsigned, though they should not be
    // Thus, we always use the positive versions. See: http://r6.ca/blog/20111119T211504Z.html
    return new ECDSASignature(r.getPositiveValue(), s.getPositiveValue());
  } catch (IOException e) {
    throw new RuntimeException(e);
  } finally {
    if (decoder != null)
      try { decoder.close(); } catch (IOException x) {}
  }
}

代码示例来源：origin: eBay/UAF

/**
 * DER - From byte[] to Big Integer rs
 * UAF_ALG_SIGN_SECP256K1_ECDSA_SHA256_DER 0x06 DER [ITU-X690-2008] encoded
 * ECDSA signature [RFC5480] on the secp256k1 curve. I.e. a DER encoded
 * SEQUENCE { r INTEGER, s INTEGER }
 * 
 * @param signature
 * @return
 * @throws IOException
 */
public static BigInteger[] decodeToBigIntegerArray(byte[] signature)
    throws IOException {
  ASN1InputStream decoder = new ASN1InputStream(signature);
  DLSequence seq = (DLSequence) decoder.readObject();
  ASN1Integer r = (ASN1Integer) seq.getObjectAt(0);
  ASN1Integer s = (ASN1Integer) seq.getObjectAt(1);
  decoder.close();
  BigInteger[] ret = new BigInteger[2];
  ret[0] = r.getPositiveValue();
  ret[1] = s.getPositiveValue();
  return ret;
}

代码示例来源：origin: eBay/UAF

/**
 * DER - From byte[] to Big Integer rs
 * UAF_ALG_SIGN_SECP256K1_ECDSA_SHA256_DER 0x06 DER [ITU-X690-2008] encoded
 * ECDSA signature [RFC5480] on the secp256k1 curve. I.e. a DER encoded
 * SEQUENCE { r INTEGER, s INTEGER }
 * 
 * @param signature
 * @return
 * @throws IOException
 */
public static BigInteger[] decodeToBigIntegerArray(byte[] signature)
    throws IOException {
  ASN1InputStream decoder = new ASN1InputStream(signature);
  DLSequence seq = (DLSequence) decoder.readObject();
  ASN1Integer r = (ASN1Integer) seq.getObjectAt(0);
  ASN1Integer s = (ASN1Integer) seq.getObjectAt(1);
  decoder.close();
  BigInteger[] ret = new BigInteger[2];
  ret[0] = r.getPositiveValue();
  ret[1] = s.getPositiveValue();
  return ret;
}

代码示例来源：origin: iNPUTmice/caas

private static OtherName parseOtherName(byte[] otherName) {
  try {
    ASN1Primitive asn1Primitive = ASN1Primitive.fromByteArray(otherName);
    if (asn1Primitive instanceof DERTaggedObject) {
      ASN1Primitive inner = ((DERTaggedObject) asn1Primitive).getObject();
      if (inner instanceof DLSequence) {
        DLSequence sequence = (DLSequence) inner;
        if (sequence.size() >= 2 && sequence.getObjectAt(1) instanceof DERTaggedObject) {
          String oid = sequence.getObjectAt(0).toString();
          ASN1Primitive value = ((DERTaggedObject) sequence.getObjectAt(1)).getObject();
          if (value instanceof DERUTF8String) {
            return new OtherName(oid, ((DERUTF8String) value).getString());
          } else if (value instanceof DERIA5String) {
            return new OtherName(oid, ((DERIA5String) value).getString());
          }
        }
      }
    }
    return null;
  } catch (IOException e) {
    return null;
  }
}

代码示例来源：origin: esig/dss

public static byte[] computeSkiFromCert(final CertificateToken certificateToken) {
  try {
    DLSequence seq = (DLSequence) DERSequence.fromByteArray(certificateToken.getPublicKey().getEncoded());
    DERBitString item = (DERBitString) seq.getObjectAt(1);
    return DSSUtils.digest(DigestAlgorithm.SHA1, item.getOctets());
  } catch (IOException e) {
    throw new DSSException(e);
  }
}

代码示例来源：origin: arhs/sd-dss

private static HashMap<String, String> get(final X500Principal x500Principal) {
  HashMap<String, String> treeMap = new HashMap<String, String>();
  final byte[] encoded = x500Principal.getEncoded();
  final ASN1Sequence asn1Sequence = ASN1Sequence.getInstance(encoded);
  final ASN1Encodable[] asn1Encodables = asn1Sequence.toArray();
  for (final ASN1Encodable asn1Encodable : asn1Encodables) {
    final DLSet dlSet = (DLSet) asn1Encodable;
    for (int ii = 0; ii < dlSet.size(); ii++) {
      final DLSequence dlSequence = (DLSequence) dlSet.getObjectAt(ii);
      if (dlSequence.size() != 2) {
        throw new DSSException("The DLSequence must contains exactly 2 elements.");
      }
      final ASN1Encodable asn1EncodableAttributeType = dlSequence.getObjectAt(0);
      final String stringAttributeType = getString(asn1EncodableAttributeType);
      final ASN1Encodable asn1EncodableAttributeValue = dlSequence.getObjectAt(1);
      final String stringAttributeValue = getString(asn1EncodableAttributeValue);
      treeMap.put(stringAttributeType, stringAttributeValue);
    }
  }
  return treeMap;
}

代码示例来源：origin: esig/dss

public static Map<String, String> get(final X500Principal x500Principal) {
  Map<String, String> treeMap = new HashMap<String, String>();
  final byte[] encoded = x500Principal.getEncoded();
  final ASN1Sequence asn1Sequence = ASN1Sequence.getInstance(encoded);
  final ASN1Encodable[] asn1Encodables = asn1Sequence.toArray();
  for (final ASN1Encodable asn1Encodable : asn1Encodables) {
    final DLSet dlSet = (DLSet) asn1Encodable;
    for (int ii = 0; ii < dlSet.size(); ii++) {
      final DLSequence dlSequence = (DLSequence) dlSet.getObjectAt(ii);
      if (dlSequence.size() != 2) {
        throw new DSSException("The DLSequence must contains exactly 2 elements.");
      }
      final ASN1Encodable asn1EncodableAttributeType = dlSequence.getObjectAt(0);
      final String stringAttributeType = getString(asn1EncodableAttributeType);
      final ASN1Encodable asn1EncodableAttributeValue = dlSequence.getObjectAt(1);
      final String stringAttributeValue = getString(asn1EncodableAttributeValue);
      treeMap.put(stringAttributeType, stringAttributeValue);
    }
  }
  return treeMap;
}

代码示例来源：origin: org.demoiselle.signer/core

/**
 *     *
 * @return the authority key identifier of a certificate
 * 
 */
public String getAuthorityKeyIdentifier() {
  // TODO - Precisa validar este metodo com a RFC
  try {
    DLSequence sequence = (DLSequence) getExtensionValue(Extension.authorityKeyIdentifier.getId());
    if (sequence == null || sequence.size() == 0) {
      return null;
    }
    DERTaggedObject taggedObject = (DERTaggedObject) sequence.getObjectAt(0);
    DEROctetString oct = (DEROctetString) taggedObject.getObject();
    return toString(oct.getOctets());
  } catch (Exception error) {
    logger.info(error.getMessage());
    return null;
  }
    
}

代码示例来源：origin: com.bushidowallet/bushido-core-lib

public boolean verify(byte[] message, byte[] signature) throws Exception
{
  ASN1InputStream asn1 = new ASN1InputStream(signature);
  ECDSASigner signer = new ECDSASigner();
  //not for signing...
  signer.init(false, new ECPublicKeyParameters(curve.getCurve().decodePoint(pub), params));
  DLSequence seq = (DLSequence) asn1.readObject();
  BigInteger r = ((ASN1Integer) seq.getObjectAt(0)).getPositiveValue();
  BigInteger s = ((ASN1Integer) seq.getObjectAt(1)).getPositiveValue();
  return signer.verifySignature(message, r, s);
}

代码示例来源：origin: org.demoiselle.signer/signature-core

/**
 * Obtém o Identificador de chave de autoridade de um certificado
 *
 * @return O Identificador de chave de autoridade
 * @throws IOException Retorna a exceção IOException
 */
public String getAuthorityKeyIdentifier() throws IOException {
  // TODO - Precisa validar este metodo com a RFC
  DLSequence sequence = (DLSequence) getExtensionValue(Extension.authorityKeyIdentifier.getId());
  if (sequence == null || sequence.size() == 0) {
    return null;
  }
  DERTaggedObject taggedObject = (DERTaggedObject) sequence.getObjectAt(0);
  DEROctetString oct = (DEROctetString) taggedObject.getObject();
  return toString(oct.getOctets());
}

代码示例来源：origin: hyperledger-archives/fabric-api

@Override
public boolean verify(byte[] hash, byte[] signature, byte[] publicKey) {
  ASN1InputStream asn1 = new ASN1InputStream(signature);
  try {
    ECDSASigner signer = new ECDSASigner();
    signer.init(false, new ECPublicKeyParameters(curve.getCurve().decodePoint(publicKey), domain));
    DLSequence seq = (DLSequence) asn1.readObject();
    BigInteger r = ((ASN1Integer) seq.getObjectAt(0)).getPositiveValue();
    BigInteger s = ((ASN1Integer) seq.getObjectAt(1)).getPositiveValue();
    return signer.verifySignature(hash, r, s);
  } catch (Exception e) {
    return false;
  } finally {
    try {
      asn1.close();
    } catch (IOException ignored) {
    }
  }
}

代码示例来源：origin: org.demoiselle.signer/policy-engine

@Override
public void parse(ASN1Primitive derObject) {
  ASN1Sequence sequence = ASN1Object.getDERSequence(derObject);
  ASN1Primitive policyInfos = sequence.getObjectAt(0).toASN1Primitive();
  DLSequence policyInfosSequence = (DLSequence) policyInfos;
  if (policyInfosSequence != null && policyInfosSequence.size() > 0) {
    this.policyInfos = new ArrayList<>();
    for (int i = 0; i < policyInfosSequence.size(); i++) {
      PolicyInfo policyInfo = new PolicyInfo();
      policyInfo.parse(policyInfosSequence.getObjectAt(i).toASN1Primitive());
      this.policyInfos.add(policyInfo);
    }
  }
  this.nextUpdate = new Time();
  this.nextUpdate.parse(sequence.getObjectAt(1).toASN1Primitive());
}

代码示例来源：origin: org.demoiselle.signer/policy-engine

public void parse(ASN1Primitive derObject) {
  ASN1Sequence sequence = ASN1Object.getDERSequence(derObject);
  ASN1Primitive firstObject = sequence.getObjectAt(0).toASN1Primitive();
  this.version = new Version();
  int indice = 0;
  if (firstObject instanceof ASN1Integer) {
    this.version.parse(firstObject);
    indice++;
  }
  ASN1Primitive policyInfos = sequence.getObjectAt(indice).toASN1Primitive();
  DLSequence policyInfosSequence = (DLSequence) policyInfos;
  if (policyInfosSequence != null && policyInfosSequence.size() > 0) {
    this.policyInfos = new ArrayList<>();
    for (int i = 0; i < policyInfosSequence.size(); i++) {
      PolicyInfo policyInfo = new PolicyInfo();
      policyInfo.parse(policyInfosSequence.getObjectAt(i).toASN1Primitive());
      this.policyInfos.add(policyInfo);
    }
  }
  this.nextUpdate = new GeneralizedTime();
  this.nextUpdate.parse(sequence.getObjectAt(indice + 1).toASN1Primitive());
}

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