Java Requires Chilkat v11.0.0+
Chilkat2 Java
Validate CAdES-T Signature (.p7m)
See more CAdES Examples
Validates a CAdES-T CMS signature and extracts the time-stamp token and gets information about it. Also validates the time-stamp token.Chilkat Java Downloads
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Crypt2;
import com.chilkatsoft.chilkat2.DtObj;
import com.chilkatsoft.chilkat2.JsonObject;
public class ChilkatExample {
public static void main(String[] args) {
boolean success = false;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
Crypt2 crypt = new Crypt2();
// Indicate that the CAdES-T timestamp tokens must also pass validation for the signature to be validated.
JsonObject cmsOptions = new JsonObject();
cmsOptions.updateBool("ValidateTimestampTokens", true);
crypt.setCmsOptions(cmsOptions.emit());
// Validate the .p7m and extract the original signed data to an output file.
// Note: The timestampToken is an unauthenticated attribute. See the code below that retrieves and parses the last JSON data.
// for details about examining timestampToken.
try {
crypt.verifyP7M("qa_data/cades/CAdES-T/Signature-C-T-1.p7m", "qa_output/out.dat");
success = true;
} catch (ChilkatException e) {
success = false;
}
// Get information about the CMS signature in the last JSON data.
// The detailed results of the signature validation are available in the last JSON data.
// (If the non-success return status was caused by an error such as "file not found", then the
// last JSON data would be empty.)
JsonObject json = new JsonObject();
crypt.getLastJsonData(json);
json.setEmitCompact(false);
System.out.println(json.emit());
// Here is a sample result:
// See the parsing code below..
// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
// {
// "pkcs7": {
// "verify": {
// "digestAlgorithms": [
// "sha256"
// ],
// "signerInfo": [
// {
// "cert": {
// "serialNumber": "00DCB814678CDB",
// "issuerCN": "LevelBCAOK",
// "issuerDN": "",
// "digestAlgOid": "2.16.840.1.101.3.4.2.1",
// "digestAlgName": "SHA256"
// },
// "contentType": "1.2.840.113549.1.7.1",
// "signingTime": "131203065741Z",
// "messageDigest": "JJZt41Nt8VsYahP+Xti4rR3vBDkUfRd6gquItl6R5Os=",
// "signingAlgOid": "1.2.840.113549.1.1.1",
// "signingAlgName": "RSA-PKCSV-1_5",
// "authAttr": {
// "1.2.840.113549.1.9.3": {
// "name": "contentType",
// "oid": "1.2.840.113549.1.7.1"
// },
// "1.2.840.113549.1.9.5": {
// "name": "signingTime",
// "utctime": "131203065741Z"
// },
// "1.2.840.113549.1.9.4": {
// "name": "messageDigest",
// "digest": "JJZt41Nt8VsYahP+Xti4rR3vBDkUfRd6gquItl6R5Os="
// },
// "1.2.840.113549.1.9.16.2.47": {
// "name": "signingCertificateV2",
// "der": "MIGIMIGFMIGCBCBJrxOU0w0dWGsVovjLv9QDH3syB5mLVv3grSYA40x9IDBeMFOkUTBPMQswCQYDVQQGEwJGUjENMAsGA1UEChMERVRTSTEcMBoGA1UECwwTUGx1Z3Rlc3RzXzIwMTMtMjAxNDETMBEGA1UEAxMKTGV2ZWxCQ0FPSwIHANy4FGeM2w=="
// }
// },
// "unauthAttr": {
// "1.2.840.113549.1.9.16.2.14": {
// "name": "timestampToken",
// "der": "MIIL+AYJKoZI...u7CfcjURNTY=",
// "verify": {
// "digestAlgorithms": [
// "sha256"
// ],
// "signerInfo": [
// {
// "cert": {
// "serialNumber": "01AA4592D36C61",
// "issuerCN": "RootCAOK",
// "issuerDN": "",
// "digestAlgOid": "2.16.840.1.101.3.4.2.1",
// "digestAlgName": "SHA256"
// },
// "contentType": "1.2.840.113549.1.9.16.1.4",
// "messageDigest": "NSsMUrfoyCQ0OszPE1YLx1j3EyyCiBmnE5Sua6ghu/Q=",
// "signingAlgOid": "1.2.840.113549.1.1.1",
// "signingAlgName": "RSA-PKCSV-1_5",
// "authAttr": {
// "1.2.840.113549.1.9.3": {
// "name": "contentType",
// "oid": "1.2.840.113549.1.9.16.1.4"
// },
// "1.2.840.113549.1.9.4": {
// "name": "messageDigest",
// "digest": "NSsMUrfoyCQ0OszPE1YLx1j3EyyCiBmnE5Sua6ghu/Q="
// },
// "1.2.840.113549.1.9.16.2.47": {
// "name": "signingCertificateV2",
// "der": "MIGGMIGDMIGABCDB/np5UxvhcPnSxD2Kme+C88uXGCMWLAvFPHNvTApTWDBcMFGkTzBNMQswCQYDVQQGEwJGUjENMAsGA1UEChMERVRTSTEcMBoGA1UECwwTUGx1Z3Rlc3RzXzIwMTMtMjAxNDERMA8GA1UEAxMIUm9vdENBT0sCBwGqRZLTbGE="
// }
// }
// }
// ]
// },
// "timestampSignatureVerified": true,
// "tstInfo": {
// "tsaPolicyId": "1.3.6.1.4.1.2706.2.2.5.2.1.1.1",
// "messageImprint": {
// "hashAlg": "sha256",
// "digest": "C8xEe9NA4X1cUyHGX9zG89ipmQ2byFs3aa+Xe4Fz2P0=",
// "digestMatches": true
// },
// "serialNumber": "313E162121D922",
// "genTime": "20131203065742Z"
// }
// }
// }
// }
// ]
// }
// }
// }
//
String strVal = "";
String certSerialNumber = "";
String certIssuerCN = "";
String certIssuerDN = "";
String certDigestAlgOid = "";
String certDigestAlgName = "";
String contentType = "";
DtObj signingTime = new DtObj();
String messageDigest = "";
String signingAlgOid = "";
String signingAlgName = "";
String authAttrContentTypeName = "";
String authAttrContentTypeOid = "";
String authAttrSigningTimeName = "";
DtObj authAttrSigningTimeUtctime = new DtObj();
String authAttrMessageDigestName = "";
String authAttrMessageDigestDigest = "";
String authAttrSigningCertificateV2Name = "";
String authAttrSigningCertificateV2Der = "";
String unauthAttrTimestampTokenName = "";
String unauthAttrTimestampTokenDer = "";
boolean unauthAttrTimestampTokenTimestampSignatureVerified = false;
String unauthAttrTimestampTokenTstInfoTsaPolicyId = "";
String unauthAttrTimestampTokenTstInfoMessageImprintHashAlg = "";
String unauthAttrTimestampTokenTstInfoMessageImprintDigest = "";
boolean unauthAttrTimestampTokenTstInfoMessageImprintDigestMatches = false;
String unauthAttrTimestampTokenTstInfoSerialNumber = "";
DtObj unauthAttrTimestampTokenTstInfoGenTime = new DtObj();
int j = 0;
int count_j = 0;
// Iterate over the hash algorithms used in the signature.
int i = 0;
int count_i = json.sizeOfArray("pkcs7.verify.digestAlgorithms");
while (i < count_i) {
json.setI(i);
strVal = json.stringOf("pkcs7.verify.digestAlgorithms[i]");
i = i + 1;
}
// For each signer...
i = 0;
count_i = json.sizeOfArray("pkcs7.verify.signerInfo");
while (i < count_i) {
json.setI(i);
// Get information about the certificate used by this signer.
certSerialNumber = json.stringOf("pkcs7.verify.signerInfo[i].cert.serialNumber");
certIssuerCN = json.stringOf("pkcs7.verify.signerInfo[i].cert.issuerCN");
certIssuerDN = json.stringOf("pkcs7.verify.signerInfo[i].cert.issuerDN");
certDigestAlgOid = json.stringOf("pkcs7.verify.signerInfo[i].cert.digestAlgOid");
certDigestAlgName = json.stringOf("pkcs7.verify.signerInfo[i].cert.digestAlgName");
// Get additional information for this signer, such as the signingTime, signature algorithm, etc.
contentType = json.stringOf("pkcs7.verify.signerInfo[i].contentType");
json.dtOf("pkcs7.verify.signerInfo[i].signingTime", false, signingTime);
messageDigest = json.stringOf("pkcs7.verify.signerInfo[i].messageDigest");
signingAlgOid = json.stringOf("pkcs7.verify.signerInfo[i].signingAlgOid");
signingAlgName = json.stringOf("pkcs7.verify.signerInfo[i].signingAlgName");
// --------------------------------
// Examine authenticated attributes.
// --------------------------------
// contentType
if (json.hasMember("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.3\"")) {
authAttrContentTypeName = json.stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.3\".name");
authAttrContentTypeOid = json.stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.3\".oid");
}
// signingTime
if (json.hasMember("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.5\"")) {
authAttrSigningTimeName = json.stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.5\".name");
json.dtOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.5\".utctime", false, authAttrSigningTimeUtctime);
}
// messageDigest
if (json.hasMember("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.4\"")) {
authAttrMessageDigestName = json.stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.4\".name");
authAttrMessageDigestDigest = json.stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.4\".digest");
}
// signingCertificateV2
if (json.hasMember("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.16.2.47\"")) {
authAttrSigningCertificateV2Name = json.stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.16.2.47\".name");
authAttrSigningCertificateV2Der = json.stringOf("pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.16.2.47\".der");
}
// --------------------------------
// Examine unauthenticated attributes.
// --------------------------------
// timestampToken (the timestampToken is what makes this signature a CAdES-T)
if (json.hasMember("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\"")) {
unauthAttrTimestampTokenName = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".name");
unauthAttrTimestampTokenDer = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".der");
// This is where we find out if the timestampToken's signature is valid.
unauthAttrTimestampTokenTimestampSignatureVerified = json.boolOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".timestampSignatureVerified");
unauthAttrTimestampTokenTstInfoTsaPolicyId = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.tsaPolicyId");
unauthAttrTimestampTokenTstInfoMessageImprintHashAlg = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.messageImprint.hashAlg");
unauthAttrTimestampTokenTstInfoMessageImprintDigest = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.messageImprint.digest");
// Here is where we check to see if the digest in the timestampToken's messageImprint matches the digest of the signature of this signerInfo
unauthAttrTimestampTokenTstInfoMessageImprintDigestMatches = json.boolOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.messageImprint.digestMatches");
unauthAttrTimestampTokenTstInfoSerialNumber = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.serialNumber");
// Here is where we get the date/time of the timestampToken (i.e. when it was timestamped)
json.dtOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".tstInfo.genTime", false, unauthAttrTimestampTokenTstInfoGenTime);
// The following code gets details about the validity of the timestampToken's signature...
j = 0;
count_j = json.sizeOfArray("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.digestAlgorithms");
while (j < count_j) {
json.setJ(j);
strVal = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.digestAlgorithms[j]");
j = j + 1;
}
j = 0;
count_j = json.sizeOfArray("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo");
while (j < count_j) {
json.setJ(j);
certSerialNumber = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.serialNumber");
certIssuerCN = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.issuerCN");
certIssuerDN = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.issuerDN");
certDigestAlgOid = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.digestAlgOid");
certDigestAlgName = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].cert.digestAlgName");
contentType = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].contentType");
messageDigest = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].messageDigest");
signingAlgOid = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].signingAlgOid");
signingAlgName = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].signingAlgName");
authAttrContentTypeName = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.3\".name");
authAttrContentTypeOid = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.3\".oid");
authAttrMessageDigestName = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.4\".name");
authAttrMessageDigestDigest = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.4\".digest");
authAttrSigningCertificateV2Name = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.16.2.47\".name");
authAttrSigningCertificateV2Der = json.stringOf("pkcs7.verify.signerInfo[i].unauthAttr.\"1.2.840.113549.1.9.16.2.14\".verify.signerInfo[j].authAttr.\"1.2.840.113549.1.9.16.2.47\".der");
j = j + 1;
}
}
i = i + 1;
}
if (!success) {
System.out.println(crypt.getLastErrorText());
System.out.println("CAdES-T verification failed.");
} else {
System.out.println("CAdES-T signature is valid.");
}
}
}