p7 证书相关

2022-06-20 16:15:38 +08:00
parent 2e8ea4e077
commit 4404f89dd6
5 changed files with 689 additions and 174 deletions
@@ -0,0 +1,139 @@
+package org.bouncycastle.cms;
+
+import com.sunyard.SydApiException;
+import org.bouncycastle.asn1.*;
+import org.bouncycastle.asn1.cms.ContentInfo;
+import org.bouncycastle.asn1.cms.EncryptedContentInfo;
+import org.bouncycastle.asn1.cms.OriginatorInfo;
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+
+public class SydCmsUtil {
+
+    public static Object readContentInfo(
+            byte[] input) {
+        ASN1InputStream is = new ASN1InputStream(input);
+        Object v = null;
+        try {
+            v = is.readObject();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return v;
+    }
+
+
+    public static Map<String, Object> getEncryptedContentInfo(ASN1Encodable    obj){
+        Map<String, Object>map = new HashMap<String, Object>();
+        ASN1Sequence seq = ASN1Sequence.getInstance(obj );
+        if (seq.size() < 2)
+        {
+            throw new IllegalArgumentException("Truncated Sequence Found");
+        }
+
+        ASN1ObjectIdentifier contentType = (ASN1ObjectIdentifier)seq.getObjectAt(0);
+        map.put( "contentType", contentType );
+
+        AlgorithmIdentifier contentEncryptionAlgorithm = AlgorithmIdentifier.getInstance(
+                seq.getObjectAt(1));
+
+        map.put( "contentEncryptionAlgorithm", contentEncryptionAlgorithm );
+
+        if (seq.size() > 2)
+        {
+            ASN1OctetString encryptedContent = ASN1OctetString.getInstance(
+                    (ASN1TaggedObject)seq.getObjectAt(2), false);
+            map.put( "encryptedContent", encryptedContent );
+        }
+        return map;
+    }
+
+    public static Map<String, Object> getOriginatorInfo(ASN1TaggedObject    obj,
+                                                        boolean             explicit){
+        Map<String, Object>map = new HashMap<String, Object>();
+        ASN1Sequence seq = ASN1Sequence.getInstance(obj, explicit);
+        switch (seq.size())
+        {
+            case 0:     // empty
+                break;
+            case 1:
+                ASN1TaggedObject o = (ASN1TaggedObject)seq.getObjectAt(0);
+                switch (o.getTagNo())
+                {
+                    case 0 :
+                        ASN1Set certs = ASN1Set.getInstance(o, false);
+                        map.put("certs", certs);
+                        break;
+                    case 1 :
+                        ASN1Set crls = ASN1Set.getInstance(o, false);
+                        map.put("crls", crls);
+                        break;
+                    default:
+                        throw new IllegalArgumentException("Bad tag in OriginatorInfo: " + o.getTagNo());
+                }
+                break;
+            case 2:
+                ASN1Set certs = ASN1Set.getInstance((ASN1TaggedObject)seq.getObjectAt(0), false);
+                map.put("certs", certs);
+                ASN1Set crls  = ASN1Set.getInstance((ASN1TaggedObject)seq.getObjectAt(1), false);
+                map.put("crls", crls);
+                break;
+            default:
+                throw new IllegalArgumentException("OriginatorInfo too big");
+        }
+
+        return map;
+    }
+
+    public static ContentInfo getContentInfo( byte[] input ) {
+        Object content = readContentInfo( input );
+        ASN1Sequence seq = ASN1Sequence.getInstance( content );
+        return new ContentInfo(seq);
+    }
+
+    public static Map<String, Object> readCmsInfo( byte[] input ) throws CMSException {
+        Map<String, Object>map = new HashMap<String, Object>();
+
+        Object content = readContentInfo( input );
+        ASN1Sequence seq = ASN1Sequence.getInstance( content );
+        ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) seq.getObjectAt(0);
+        map.put("oid", oid);
+
+        seq = ASN1Sequence.getInstance((ASN1TaggedObject) seq.getObjectAt(1), true);
+
+        int     index = 0;
+
+        ASN1Integer version = (ASN1Integer)seq.getObjectAt(index++);
+        map.put( "version", version );
+
+        Object  tmp = seq.getObjectAt(index++);
+
+        if (tmp instanceof ASN1TaggedObject)
+        {
+            OriginatorInfo originatorInfo = OriginatorInfo.getInstance((ASN1TaggedObject)tmp, false);
+//            Map<String, Object>originatorInfo = getOriginatorInfo((ASN1TaggedObject)tmp, false);
+            map.put( "originatorInfo", originatorInfo );
+            tmp = seq.getObjectAt(index++);
+        }
+
+        ASN1Set recipientInfos = ASN1Set.getInstance(tmp);
+        map.put( "recipientInfos", recipientInfos );
+
+        EncryptedContentInfo encryptedContentInfo = EncryptedContentInfo.getInstance( seq.getObjectAt(index++) );
+//        Map<String, Object> encryptedContentInfo = getEncryptedContentInfo(seq.getObjectAt(index++));
+        map.put( "encryptedContentInfo", encryptedContentInfo );
+
+        if(seq.size() > index)
+        {
+            ASN1Set unprotectedAttrs = ASN1Set.getInstance((ASN1TaggedObject)seq.getObjectAt(index), false);
+            map.put( "unprotectedAttrs", unprotectedAttrs );
+        }
+
+        return map;
+    }
+
+}