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jss/jss-VerifyCertificate-enhancement.patch
Christina Fu 94b8206fde Resolves: rhbz #1074208,1331596 
-PKI Ticket #801
2016-05-19 14:01:14 -07:00

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From 3c4ca8a2010889fe292704ebcc8b922f77f2f7c2 Mon Sep 17 00:00:00 2001
From: "Endi S. Dewata" <edewata@redhat.com>
Date: Wed, 9 Dec 2015 00:30:50 +0100
Subject: [PATCH] Added verifyCertificate() method.
A new CryptoManager.verifyCertificate() method has been added as
an alternative to isCertValid(). If there is a certificate
validation problem, the method will throw a CertificateValidation
exception that contains the NSS error message and code. The
exception will also provide a stack trace to help troubleshoot
validation issues.
https://fedorahosted.org/pki/ticket/850
---
.../jss/org/mozilla/jss/CryptoManager.java | 54 ++++++++------
mozilla/security/jss/org/mozilla/jss/PK11Finder.c | 83 +++++++++++++++++++---
.../jss/org/mozilla/jss/util/jss_exceptions.h | 2 +
3 files changed, 110 insertions(+), 29 deletions(-)
diff --git a/mozilla/security/jss/org/mozilla/jss/CryptoManager.java b/mozilla/security/jss/org/mozilla/jss/CryptoManager.java
index 0a4f59064bfddb42d473022550c24f251719d02b..54ffd8130b0e1f1fca49dd8b130a621e449c7ce7 100644
--- a/mozilla/security/jss/org/mozilla/jss/CryptoManager.java
+++ b/mozilla/security/jss/org/mozilla/jss/CryptoManager.java
@@ -1515,30 +1515,44 @@ public final class CryptoManager implements TokenSupplier
CertificateUsage certificateUsage)
throws ObjectNotFoundException, InvalidNicknameException
{
- if (nickname==null) {
- throw new InvalidNicknameException("Nickname must be non-null");
- }
- // 0 certificate usage will get current usage
- // should call isCertValid() call above that returns certificate usage
- if ((certificateUsage == null) ||
- (certificateUsage == CertificateUsage.CheckAllUsages)){
- int currCertificateUsage = 0x0000;
- currCertificateUsage = verifyCertificateNowCUNative(nickname,
- checkSig);
+ try {
+ verifyCertificate(nickname, checkSig, certificateUsage);
+ return true;
+
+ } catch (ObjectNotFoundException | InvalidNicknameException e) {
+ throw e;
- if (currCertificateUsage == CertificateUsage.basicCertificateUsages){
- // cert is good for nothing
- return false;
- } else
- return true;
- } else {
- return verifyCertificateNowNative(nickname, checkSig,
- certificateUsage.getUsage());
+ } catch (CertificateException e) {
+ return false;
}
}
- private native boolean verifyCertificateNowNative(String nickname,
- boolean checkSig, int certificateUsage) throws ObjectNotFoundException;
+ /**
+ * Verify a certificate that exists in the given cert database,
+ * check if it's valid and that we trust the issuer. Verify time
+ * against now.
+ * @param nickname nickname of the certificate to verify.
+ * @param checkSig verify the signature of the certificate
+ * @param certificateUsage see certificate usage defined to verify certificate
+ *
+ * @exception InvalidNicknameException If the nickname is null.
+ * @exception ObjectNotFoundException If no certificate could be found
+ * with the given nickname.
+ * @exception CertificateException If certificate is invalid.
+ */
+ public void verifyCertificate(String nickname,
+ boolean checkSig,
+ CertificateUsage certificateUsage)
+ throws ObjectNotFoundException, InvalidNicknameException, CertificateException {
+ int usage = certificateUsage == null ? 0 : certificateUsage.getUsage();
+ verifyCertificateNowNative(nickname, checkSig, usage);
+ }
+
+ private native void verifyCertificateNowNative(
+ String nickname,
+ boolean checkSig,
+ int certificateUsage)
+ throws ObjectNotFoundException, InvalidNicknameException, CertificateException;
/**
* note: this method calls obsolete function in NSS
diff --git a/mozilla/security/jss/org/mozilla/jss/PK11Finder.c b/mozilla/security/jss/org/mozilla/jss/PK11Finder.c
index 8c7f0b4c05b58527a41cac140dbb5dc30578570f..4986478ffc860e145cd31e41c2880fcc2b5e007e 100644
--- a/mozilla/security/jss/org/mozilla/jss/PK11Finder.c
+++ b/mozilla/security/jss/org/mozilla/jss/PK11Finder.c
@@ -1667,21 +1667,86 @@ Java_org_mozilla_jss_CryptoManager_verifyCertificateNowCUNative(JNIEnv *env,
/***********************************************************************
* CryptoManager.verifyCertificateNowNative
*
- * Returns JNI_TRUE if success, JNI_FALSE otherwise
+ * Verify a certificate that exists in the given cert database,
+ * check if it's valid and that we trust the issuer. Verify time
+ * against now.
+ * @param nickname nickname of the certificate to verify.
+ * @param checkSig verify the signature of the certificate
+ * @param certificateUsage see certificate usage defined to verify certificate
+ *
+ * @exception InvalidNicknameException If the nickname is null.
+ * @exception ObjectNotFoundException If no certificate could be found
+ * with the given nickname.
+ * @exception CertificateException If certificate is invalid.
*/
-JNIEXPORT jboolean JNICALL
+JNIEXPORT void JNICALL
Java_org_mozilla_jss_CryptoManager_verifyCertificateNowNative(JNIEnv *env,
- jobject self, jstring nickString, jboolean checkSig, jint required_certificateUsage)
+ jobject self, jstring nickString, jboolean checkSig, jint certificateUsage)
{
- SECStatus rv = SECFailure;
SECCertificateUsage currUsage = 0x0000;
+ SECStatus rv = SECFailure;
+ CERTCertificate *cert = NULL;
+ char *nickname = NULL;
- rv = verifyCertificateNow(env, self, nickString, checkSig, required_certificateUsage, &currUsage);
+ if (nickString == NULL) {
+ JSS_throwMsg(env, INVALID_NICKNAME_EXCEPTION, "Missing certificate nickname");
+ goto finish;
+ }
- if( rv == SECSuccess) {
- return JNI_TRUE;
- } else {
- return JNI_FALSE;
+ nickname = (char *) (*env)->GetStringUTFChars(env, nickString, NULL);
+
+ if (nickname == NULL) {
+ JSS_throwMsg(env, INVALID_NICKNAME_EXCEPTION, "Missing certificate nickname");
+ goto finish;
+ }
+
+ cert = CERT_FindCertByNickname(CERT_GetDefaultCertDB(), nickname);
+
+ if (cert == NULL) {
+ char *msgBuf;
+ msgBuf = PR_smprintf("Certificate not found: %s", nickname);
+ JSS_throwMsg(env, OBJECT_NOT_FOUND_EXCEPTION, msgBuf);
+ PR_Free(msgBuf);
+ goto finish;
+ }
+
+ /* 0 for certificateUsage in call to CERT_VerifyCertificateNow will
+ * retrieve the current valid usage into currUsage
+ */
+ rv = CERT_VerifyCertificateNow(CERT_GetDefaultCertDB(), cert,
+ checkSig, certificateUsage, NULL, &currUsage);
+
+ if (rv != SECSuccess) {
+ JSS_throwMsgPrErr(env, CERTIFICATE_EXCEPTION, "Invalid certificate");
+ goto finish;
+ }
+
+ if ((certificateUsage == 0x0000) &&
+ (currUsage ==
+ ( certUsageUserCertImport |
+ certUsageVerifyCA |
+ certUsageProtectedObjectSigner |
+ certUsageAnyCA ))) {
+
+ /* The certificate is good for nothing.
+ * The following usages cannot be verified:
+ * certUsageAnyCA
+ * certUsageProtectedObjectSigner
+ * certUsageUserCertImport
+ * certUsageVerifyCA
+ * (0x0b80)
+ */
+
+ JSS_throwMsgPrErr(env, CERTIFICATE_EXCEPTION, "Unusable certificate");
+ goto finish;
+ }
+
+finish:
+ if (nickname != NULL) {
+ (*env)->ReleaseStringUTFChars(env, nickString, nickname);
+ }
+ if (cert != NULL) {
+ CERT_DestroyCertificate(cert);
}
}
diff --git a/mozilla/security/jss/org/mozilla/jss/util/jss_exceptions.h b/mozilla/security/jss/org/mozilla/jss/util/jss_exceptions.h
index 4884928306223ff0699a22e7da33e3d13a904d39..acd329a4ecd3592ebe1d72c7bdac435d84dcae99 100644
--- a/mozilla/security/jss/org/mozilla/jss/util/jss_exceptions.h
+++ b/mozilla/security/jss/org/mozilla/jss/util/jss_exceptions.h
@@ -79,6 +79,8 @@ PR_BEGIN_EXTERN_C
#define INTERRUPTED_IO_EXCEPTION "java/io/InterruptedIOException"
+#define INVALID_NICKNAME_EXCEPTION "org/mozilla/jss/util/InvalidNicknameException"
+
#define INVALID_KEY_FORMAT_EXCEPTION "org/mozilla/jss/crypto/InvalidKeyFormatException"
#define INVALID_PARAMETER_EXCEPTION "java/security/InvalidParameterException"
--
2.5.0
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