The Tor Browser: security/nss/lib/crmf/crmfcont.c@6474c204b198 (annotated)

security/nss/lib/crmf/crmfcont.c@6474c204b198 (annotated)

security/nss/lib/crmf/crmfcont.c

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- Mode: C; tab-width: 8 -*-*/
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "crmf.h"
 #include "crmfi.h"
 #include "pk11func.h"
 #include "keyhi.h"
 #include "secoid.h"
 static SECStatus
 crmf_modify_control_array (CRMFCertRequest *inCertReq, int count)
 {
     if (count > 0) {
         void *dummy = PORT_Realloc(inCertReq->controls,
 				   sizeof(CRMFControl*)*(count+2));
 	if (dummy == NULL) {
 	    return SECFailure;
 	}
 	inCertReq->controls = dummy;
     } else {
         inCertReq->controls = PORT_ZNewArray(CRMFControl*, 2);
     }
     return (inCertReq->controls == NULL) ? SECFailure : SECSuccess ;
 }
 static SECStatus
 crmf_add_new_control(CRMFCertRequest *inCertReq,SECOidTag inTag,
 		     CRMFControl **destControl)
 {
     SECOidData  *oidData;
     SECStatus    rv;
     PLArenaPool *poolp;
     int          numControls = 0;
     CRMFControl *newControl;
     CRMFControl **controls;
     void        *mark;
     poolp = inCertReq->poolp;
     if (poolp == NULL) {
         return SECFailure;
     }
     mark = PORT_ArenaMark(poolp);
     if (inCertReq->controls != NULL) {
         while (inCertReq->controls[numControls] != NULL)
 	    numControls++;
     }
     rv = crmf_modify_control_array(inCertReq, numControls);
     if (rv != SECSuccess) {
         goto loser;
     }
     controls = inCertReq->controls;
     oidData = SECOID_FindOIDByTag(inTag);
     newControl = *destControl = PORT_ArenaZNew(poolp,CRMFControl);
     if (newControl == NULL) {
         goto loser;
     }
     rv = SECITEM_CopyItem(poolp, &newControl->derTag, &oidData->oid);
     if (rv != SECSuccess) {
         goto loser;
     }
     newControl->tag = inTag;
     controls[numControls] = newControl;
     controls[numControls+1] = NULL;
     PORT_ArenaUnmark(poolp, mark);
     return SECSuccess;
  loser:
     PORT_ArenaRelease(poolp, mark);
     *destControl = NULL;
     return SECFailure;
 }
 static SECStatus
 crmf_add_secitem_control(CRMFCertRequest *inCertReq, SECItem *value,
 			 SECOidTag inTag)
 {
     SECStatus    rv;
     CRMFControl *newControl;
     void        *mark;
     rv = crmf_add_new_control(inCertReq, inTag, &newControl);
     if (rv != SECSuccess) {
         return rv;
     }
     mark = PORT_ArenaMark(inCertReq->poolp);
     rv = SECITEM_CopyItem(inCertReq->poolp, &newControl->derValue, value);
     if (rv != SECSuccess) {
         PORT_ArenaRelease(inCertReq->poolp, mark);
 	return rv;
     }
     PORT_ArenaUnmark(inCertReq->poolp, mark);
     return SECSuccess;
 }
 SECStatus
 CRMF_CertRequestSetRegTokenControl(CRMFCertRequest *inCertReq, SECItem *value)
 {
     return crmf_add_secitem_control(inCertReq, value,
 				    SEC_OID_PKIX_REGCTRL_REGTOKEN);
 }
 SECStatus
 CRMF_CertRequestSetAuthenticatorControl (CRMFCertRequest *inCertReq,
 					 SECItem         *value)
 {
     return crmf_add_secitem_control(inCertReq, value,
 				    SEC_OID_PKIX_REGCTRL_AUTHENTICATOR);
 }
 SECStatus
 crmf_destroy_encrypted_value(CRMFEncryptedValue *inEncrValue, PRBool freeit)
 {
     if (inEncrValue != NULL) {
         if (inEncrValue->intendedAlg) {
 	    SECOID_DestroyAlgorithmID(inEncrValue->intendedAlg, PR_TRUE);
 	    inEncrValue->intendedAlg = NULL;
 	}
 	if (inEncrValue->symmAlg) {
 	    SECOID_DestroyAlgorithmID(inEncrValue->symmAlg, PR_TRUE);
 	    inEncrValue->symmAlg = NULL;
 	}
         if (inEncrValue->encSymmKey.data) {
 	    PORT_Free(inEncrValue->encSymmKey.data);
 	    inEncrValue->encSymmKey.data = NULL;
 	}
 	if (inEncrValue->keyAlg) {
 	    SECOID_DestroyAlgorithmID(inEncrValue->keyAlg, PR_TRUE);
 	    inEncrValue->keyAlg = NULL;
 	}
 	if (inEncrValue->valueHint.data) {
 	    PORT_Free(inEncrValue->valueHint.data);
 	    inEncrValue->valueHint.data = NULL;
 	}
         if (inEncrValue->encValue.data) {
 	    PORT_Free(inEncrValue->encValue.data);
 	    inEncrValue->encValue.data = NULL;
 	}
 	if (freeit) {
 	    PORT_Free(inEncrValue);
 	}
     }
     return SECSuccess;
 }
 SECStatus
 CRMF_DestroyEncryptedValue(CRMFEncryptedValue *inEncrValue)
 {
     return crmf_destroy_encrypted_value(inEncrValue, PR_TRUE);
 }
 SECStatus
 crmf_copy_encryptedvalue_secalg(PLArenaPool     *poolp,
 				SECAlgorithmID  *srcAlgId,
 				SECAlgorithmID **destAlgId)
 {
     SECAlgorithmID *newAlgId;
     SECStatus rv;
     newAlgId = (poolp != NULL) ? PORT_ArenaZNew(poolp, SECAlgorithmID) :
                                  PORT_ZNew(SECAlgorithmID);
     if (newAlgId == NULL) {
         return SECFailure;
     }
     rv = SECOID_CopyAlgorithmID(poolp, newAlgId, srcAlgId);
     if (rv != SECSuccess) {
         if (!poolp) {
             SECOID_DestroyAlgorithmID(newAlgId, PR_TRUE);
         }
         return rv;
     }
     *destAlgId = newAlgId;
     return rv;
 }
 SECStatus
 crmf_copy_encryptedvalue(PLArenaPool        *poolp,
 			 CRMFEncryptedValue *srcValue,
 			 CRMFEncryptedValue *destValue)
 {
     SECStatus           rv;
     if (srcValue->intendedAlg != NULL) {
         rv = crmf_copy_encryptedvalue_secalg(poolp,
 					     srcValue->intendedAlg,
 					     &destValue->intendedAlg);
 	if (rv != SECSuccess) {
 	    goto loser;
 	}
     }
     if (srcValue->symmAlg != NULL) {
         rv = crmf_copy_encryptedvalue_secalg(poolp,
 					     srcValue->symmAlg,
 					     &destValue->symmAlg);
 	if (rv != SECSuccess) {
 	    goto loser;
 	}
     }
     if (srcValue->encSymmKey.data != NULL) {
         rv = crmf_make_bitstring_copy(poolp,
 				      &destValue->encSymmKey,
 				      &srcValue->encSymmKey);
 	if (rv != SECSuccess) {
 	    goto loser;
 	}
     }
     if (srcValue->keyAlg != NULL) {
         rv = crmf_copy_encryptedvalue_secalg(poolp,
 					     srcValue->keyAlg,
 					     &destValue->keyAlg);
 	if (rv != SECSuccess) {
 	    goto loser;
 	}
     }
     if (srcValue->valueHint.data != NULL) {
         rv = SECITEM_CopyItem(poolp,
 			      &destValue->valueHint,
 			      &srcValue->valueHint);
 	if (rv != SECSuccess) {
 	    goto loser;
 	}
     }
     if (srcValue->encValue.data != NULL) {
         rv = crmf_make_bitstring_copy(poolp,
 				      &destValue->encValue,
 				      &srcValue->encValue);
 	if (rv != SECSuccess) {
 	    goto loser;
 	}
     }
     return SECSuccess;
  loser:
     if (poolp == NULL && destValue != NULL) {
         crmf_destroy_encrypted_value(destValue, PR_FALSE);
     }
     return SECFailure;
 }
 SECStatus
 crmf_copy_encryptedkey(PLArenaPool       *poolp,
 		       CRMFEncryptedKey  *srcEncrKey,
 		       CRMFEncryptedKey  *destEncrKey)
 {
     SECStatus          rv;
     void              *mark = NULL;
     if (poolp != NULL) {
         mark = PORT_ArenaMark(poolp);
     }
     switch (srcEncrKey->encKeyChoice) {
     case crmfEncryptedValueChoice:
         rv = crmf_copy_encryptedvalue(poolp,
 				      &srcEncrKey->value.encryptedValue,
 				      &destEncrKey->value.encryptedValue);
 	break;
     case crmfEnvelopedDataChoice:
         destEncrKey->value.envelopedData =
 	    SEC_PKCS7CopyContentInfo(srcEncrKey->value.envelopedData);
         rv = (destEncrKey->value.envelopedData != NULL) ? SECSuccess:
 	                                                  SECFailure;
         break;
     default:
         rv = SECFailure;
     }
     if (rv != SECSuccess) {
         goto loser;
     }
     destEncrKey->encKeyChoice = srcEncrKey->encKeyChoice;
     if (mark) {
     	PORT_ArenaUnmark(poolp, mark);
     }
     return SECSuccess;
  loser:
     if (mark) {
         PORT_ArenaRelease(poolp, mark);
     }
     return SECFailure;
 }
 static CRMFPKIArchiveOptions*
 crmf_create_encr_pivkey_option(CRMFEncryptedKey *inEncryptedKey)
 {
     CRMFPKIArchiveOptions *newArchOpt;
     SECStatus              rv;
     newArchOpt = PORT_ZNew(CRMFPKIArchiveOptions);
     if (newArchOpt == NULL) {
         goto loser;
     }
     rv = crmf_copy_encryptedkey(NULL, inEncryptedKey,
 				&newArchOpt->option.encryptedKey);
     if (rv != SECSuccess) {
       goto loser;
     }
     newArchOpt->archOption = crmfEncryptedPrivateKey;
     return newArchOpt;
  loser:
     if (newArchOpt != NULL) {
         CRMF_DestroyPKIArchiveOptions(newArchOpt);
     }
     return NULL;
 }
 static CRMFPKIArchiveOptions*
 crmf_create_keygen_param_option(SECItem *inKeyGenParams)
 {
     CRMFPKIArchiveOptions *newArchOptions;
     SECStatus              rv;
     newArchOptions = PORT_ZNew(CRMFPKIArchiveOptions);
     if (newArchOptions == NULL) {
         goto loser;
     }
     newArchOptions->archOption = crmfKeyGenParameters;
     rv = SECITEM_CopyItem(NULL, &newArchOptions->option.keyGenParameters,
 			  inKeyGenParams);
     if (rv != SECSuccess) {
         goto loser;
     }
     return newArchOptions;
  loser:
     if (newArchOptions != NULL) {
         CRMF_DestroyPKIArchiveOptions(newArchOptions);
     }
     return NULL;
 }
 static CRMFPKIArchiveOptions*
 crmf_create_arch_rem_gen_privkey(PRBool archiveRemGenPrivKey)
 {
     unsigned char          value;
     SECItem               *dummy;
     CRMFPKIArchiveOptions *newArchOptions;
     value = (archiveRemGenPrivKey) ? hexTrue : hexFalse;
     newArchOptions = PORT_ZNew(CRMFPKIArchiveOptions);
     if (newArchOptions == NULL) {
         goto loser;
     }
     dummy = SEC_ASN1EncodeItem(NULL,
 			       &newArchOptions->option.archiveRemGenPrivKey,
 			       &value, SEC_ASN1_GET(SEC_BooleanTemplate));
     PORT_Assert (dummy == &newArchOptions->option.archiveRemGenPrivKey);
     if (dummy != &newArchOptions->option.archiveRemGenPrivKey) {
         SECITEM_FreeItem (dummy, PR_TRUE);
 	goto loser;
     }
     newArchOptions->archOption = crmfArchiveRemGenPrivKey;
     return newArchOptions;
  loser:
     if (newArchOptions != NULL) {
         CRMF_DestroyPKIArchiveOptions(newArchOptions);
     }
     return NULL;
 }
 CRMFPKIArchiveOptions*
 CRMF_CreatePKIArchiveOptions(CRMFPKIArchiveOptionsType inType, void *data)
 {
     CRMFPKIArchiveOptions* retOptions;
     PORT_Assert(data != NULL);
     if (data == NULL) {
         return NULL;
     }
     switch(inType) {
     case crmfEncryptedPrivateKey:
         retOptions = crmf_create_encr_pivkey_option((CRMFEncryptedKey*)data);
 	break;
     case crmfKeyGenParameters:
         retOptions = crmf_create_keygen_param_option((SECItem*)data);
 	break;
     case crmfArchiveRemGenPrivKey:
         retOptions = crmf_create_arch_rem_gen_privkey(*(PRBool*)data);
 	break;
     default:
         retOptions = NULL;
     }
     return retOptions;
 }
 static SECStatus
 crmf_destroy_encrypted_key(CRMFEncryptedKey *inEncrKey, PRBool freeit)
 {
     PORT_Assert(inEncrKey != NULL);
     if (inEncrKey != NULL) {
         switch (inEncrKey->encKeyChoice){
 	case crmfEncryptedValueChoice:
             crmf_destroy_encrypted_value(&inEncrKey->value.encryptedValue,
 					 PR_FALSE);
 	    break;
 	case crmfEnvelopedDataChoice:
 	    SEC_PKCS7DestroyContentInfo(inEncrKey->value.envelopedData);
             break;
         default:
             break;
         }
         if (freeit) {
             PORT_Free(inEncrKey);
         }
     }
     return SECSuccess;
 }
 SECStatus
 crmf_destroy_pkiarchiveoptions(CRMFPKIArchiveOptions *inArchOptions,
 			       PRBool                 freeit)
 {
     PORT_Assert(inArchOptions != NULL);
     if (inArchOptions != NULL) {
         switch (inArchOptions->archOption) {
 	case crmfEncryptedPrivateKey:
 	    crmf_destroy_encrypted_key(&inArchOptions->option.encryptedKey,
 				       PR_FALSE);
 	    break;
 	case crmfKeyGenParameters:
 	case crmfArchiveRemGenPrivKey:
 	    /* This is a union, so having a pointer to one is like
 	     * having a pointer to both.
 	     */
 	    SECITEM_FreeItem(&inArchOptions->option.keyGenParameters,
 			     PR_FALSE);
 	    break;
         case crmfNoArchiveOptions:
             break;
 	}
 	if (freeit) {
 	    PORT_Free(inArchOptions);
 	}
     }
     return SECSuccess;
 }
 SECStatus
 CRMF_DestroyPKIArchiveOptions(CRMFPKIArchiveOptions *inArchOptions)
 {
     return crmf_destroy_pkiarchiveoptions(inArchOptions, PR_TRUE);
 }
 static CK_MECHANISM_TYPE
 crmf_get_non_pad_mechanism(CK_MECHANISM_TYPE type)
 {
     switch (type) {
     case CKM_DES3_CBC_PAD:
         return CKM_DES3_CBC;
     case CKM_CAST5_CBC_PAD:
         return CKM_CAST5_CBC;
     case CKM_DES_CBC_PAD:
         return CKM_DES_CBC;
     case CKM_IDEA_CBC_PAD:
         return CKM_IDEA_CBC;
     case CKM_CAST3_CBC_PAD:
         return CKM_CAST3_CBC;
     case CKM_CAST_CBC_PAD:
         return CKM_CAST_CBC;
     case CKM_RC5_CBC_PAD:
         return CKM_RC5_CBC;
     case CKM_RC2_CBC_PAD:
         return CKM_RC2_CBC;
     case CKM_CDMF_CBC_PAD:
         return CKM_CDMF_CBC;
     }
     return type;
 }
 static CK_MECHANISM_TYPE
 crmf_get_pad_mech_from_tag(SECOidTag oidTag)
 {
     CK_MECHANISM_TYPE  mechType;
     SECOidData        *oidData;
     oidData = SECOID_FindOIDByTag(oidTag);
     mechType = (CK_MECHANISM_TYPE)oidData->mechanism;
     return PK11_GetPadMechanism(mechType);
 }
 static CK_MECHANISM_TYPE
 crmf_get_best_privkey_wrap_mechanism(PK11SlotInfo *slot)
 {
     CK_MECHANISM_TYPE privKeyPadMechs[] = { CKM_DES3_CBC_PAD,
 					    CKM_CAST5_CBC_PAD,
 					    CKM_DES_CBC_PAD,
 					    CKM_IDEA_CBC_PAD,
 					    CKM_CAST3_CBC_PAD,
 					    CKM_CAST_CBC_PAD,
 					    CKM_RC5_CBC_PAD,
 					    CKM_RC2_CBC_PAD,
 					    CKM_CDMF_CBC_PAD };
     int mechCount = sizeof(privKeyPadMechs)/sizeof(privKeyPadMechs[0]);
     int i;
     for (i=0; i < mechCount; i++) {
         if (PK11_DoesMechanism(slot, privKeyPadMechs[i])) {
 	    return privKeyPadMechs[i];
 	}
     }
     return CKM_INVALID_MECHANISM;
 }
 CK_MECHANISM_TYPE
 CRMF_GetBestWrapPadMechanism(PK11SlotInfo *slot)
 {
     return crmf_get_best_privkey_wrap_mechanism(slot);
 }
 static SECItem*
 crmf_get_iv(CK_MECHANISM_TYPE mechType)
 {
     int        iv_size = PK11_GetIVLength(mechType);
     SECItem   *iv;
     SECStatus  rv;
     iv = PORT_ZNew(SECItem);
     if (iv == NULL) {
         return NULL;
     }
     if (iv_size == 0) {
         iv->data = NULL;
 	iv->len  = 0;
 	return iv;
     }
     iv->data = PORT_NewArray(unsigned char, iv_size);
     if (iv->data == NULL) {
         iv->len = 0;
 	return iv;
     }
     iv->len = iv_size;
     rv = PK11_GenerateRandom(iv->data, iv->len);
     if (rv != SECSuccess) {
         PORT_Free(iv->data);
 	iv->data = NULL;
 	iv->len  = 0;
     }
     return iv;
 }
 SECItem*
 CRMF_GetIVFromMechanism(CK_MECHANISM_TYPE mechType)
 {
     return crmf_get_iv(mechType);
 }
 CK_MECHANISM_TYPE
 crmf_get_mechanism_from_public_key(SECKEYPublicKey *inPubKey)
 {
     CERTSubjectPublicKeyInfo *spki = NULL;
     SECOidTag                 tag;
     spki = SECKEY_CreateSubjectPublicKeyInfo(inPubKey);
     if (spki == NULL) {
         return CKM_INVALID_MECHANISM;
     }
     tag = SECOID_FindOIDTag(&spki->algorithm.algorithm);
     SECKEY_DestroySubjectPublicKeyInfo(spki);
     spki = NULL;
     return PK11_AlgtagToMechanism(tag);
 }
 SECItem*
 crmf_get_public_value(SECKEYPublicKey *pubKey, SECItem *dest)
 {
     SECItem *src;
     switch(pubKey->keyType) {
     case dsaKey:
 	src =  &pubKey->u.dsa.publicValue;
 	break;
     case rsaKey:
 	src =  &pubKey->u.rsa.modulus;
 	break;
     case dhKey:
 	src =  &pubKey->u.dh.publicValue;
 	break;
     default:
 	src = NULL;
 	break;
     }
     if (!src) {
 	PORT_SetError(SEC_ERROR_INVALID_ARGS);
 	return NULL;
     }
     if (dest != NULL) {
 	SECStatus rv = SECITEM_CopyItem(NULL, dest, src);
 	if (rv != SECSuccess) {
 	    dest = NULL;
 	}
     } else {
         dest = SECITEM_ArenaDupItem(NULL, src);
     }
     return dest;
 }
 static SECItem*
 crmf_decode_params(SECItem *inParams)
 {
     SECItem     *params;
     SECStatus    rv      = SECFailure;
     PLArenaPool *poolp;
     poolp = PORT_NewArena(CRMF_DEFAULT_ARENA_SIZE);
     if (poolp == NULL) {
         return NULL;
     }
     params = PORT_ArenaZNew(poolp, SECItem);
     if (params) {
 	rv = SEC_ASN1DecodeItem(poolp, params,
 				SEC_ASN1_GET(SEC_OctetStringTemplate),
 				inParams);
     }
     params = (rv == SECSuccess) ? SECITEM_ArenaDupItem(NULL, params) : NULL;
     PORT_FreeArena(poolp, PR_FALSE);
     return params;
 }
 static int
 crmf_get_key_size_from_mech(CK_MECHANISM_TYPE mechType)
 {
     CK_MECHANISM_TYPE keyGen = PK11_GetKeyGen(mechType);
     switch (keyGen) {
     case CKM_CDMF_KEY_GEN:
     case CKM_DES_KEY_GEN:
         return 8;
     case CKM_DES2_KEY_GEN:
 	return 16;
     case CKM_DES3_KEY_GEN:
 	return 24;
     }
     return 0;
 }
 SECStatus
 crmf_encrypted_value_unwrap_priv_key(PLArenaPool        *poolp,
 				     CRMFEncryptedValue *encValue,
 				     SECKEYPrivateKey   *privKey,
 				     SECKEYPublicKey    *newPubKey,
 				     SECItem            *nickname,
 				     PK11SlotInfo       *slot,
 				     unsigned char       keyUsage,
 				     SECKEYPrivateKey  **unWrappedKey,
 				     void               *wincx)
 {
     PK11SymKey        *wrappingKey = NULL;
     CK_MECHANISM_TYPE  wrapMechType;
     SECOidTag          oidTag;
     SECItem           *params = NULL, *publicValue = NULL;
     int                keySize, origLen;
     CK_KEY_TYPE        keyType;
     CK_ATTRIBUTE_TYPE *usage = NULL;
     CK_ATTRIBUTE_TYPE rsaUsage[] = {
       CKA_UNWRAP, CKA_DECRYPT, CKA_SIGN, CKA_SIGN_RECOVER };
     CK_ATTRIBUTE_TYPE dsaUsage[] = { CKA_SIGN };
     CK_ATTRIBUTE_TYPE dhUsage[] = { CKA_DERIVE };
     int usageCount = 0;
     oidTag = SECOID_GetAlgorithmTag(encValue->symmAlg);
     wrapMechType = crmf_get_pad_mech_from_tag(oidTag);
     keySize = crmf_get_key_size_from_mech(wrapMechType);
     wrappingKey = PK11_PubUnwrapSymKey(privKey, &encValue->encSymmKey,
 				       wrapMechType, CKA_UNWRAP, keySize);
     if (wrappingKey == NULL) {
         goto loser;
     }/* Make the length a byte length instead of bit length*/
     params = (encValue->symmAlg != NULL) ?
               crmf_decode_params(&encValue->symmAlg->parameters) : NULL;
     origLen = encValue->encValue.len;
     encValue->encValue.len = CRMF_BITS_TO_BYTES(origLen);
     publicValue = crmf_get_public_value(newPubKey, NULL);
     switch(newPubKey->keyType) {
     default:
     case rsaKey:
         keyType = CKK_RSA;
         switch  (keyUsage & (KU_KEY_ENCIPHERMENT|KU_DIGITAL_SIGNATURE)) {
         case KU_KEY_ENCIPHERMENT:
             usage = rsaUsage;
             usageCount = 2;
             break;
         case KU_DIGITAL_SIGNATURE:
             usage = &rsaUsage[2];
             usageCount = 2;
             break;
         case KU_KEY_ENCIPHERMENT|KU_DIGITAL_SIGNATURE:
         case 0: /* default to everything */
             usage = rsaUsage;
             usageCount = 4;
             break;
         }
 	break;
     case dhKey:
         keyType = CKK_DH;
         usage = dhUsage;
         usageCount = sizeof(dhUsage)/sizeof(dhUsage[0]);
         break;
     case dsaKey:
         keyType = CKK_DSA;
         usage = dsaUsage;
         usageCount = sizeof(dsaUsage)/sizeof(dsaUsage[0]);
         break;
     }
     PORT_Assert(usage != NULL);
     PORT_Assert(usageCount != 0);
     *unWrappedKey = PK11_UnwrapPrivKey(slot, wrappingKey, wrapMechType, params,
 				       &encValue->encValue, nickname,
 				       publicValue, PR_TRUE,PR_TRUE,
 				       keyType, usage, usageCount, wincx);
     encValue->encValue.len = origLen;
     if (*unWrappedKey == NULL) {
         goto loser;
     }
     SECITEM_FreeItem (publicValue, PR_TRUE);
     if (params!= NULL) {
         SECITEM_FreeItem(params, PR_TRUE);
     }
     PK11_FreeSymKey(wrappingKey);
     return SECSuccess;
  loser:
     *unWrappedKey = NULL;
     return SECFailure;
 }
 CRMFEncryptedValue *
 crmf_create_encrypted_value_wrapped_privkey(SECKEYPrivateKey   *inPrivKey,
 					    SECKEYPublicKey    *inCAKey,
 					    CRMFEncryptedValue *destValue)
 {
     SECItem                   wrappedPrivKey, wrappedSymKey;
     SECItem                   encodedParam, *dummy;
     SECStatus                 rv;
     CK_MECHANISM_TYPE         pubMechType, symKeyType;
     unsigned char            *wrappedSymKeyBits;
     unsigned char            *wrappedPrivKeyBits;
     SECItem                  *iv = NULL;
     SECOidTag                 tag;
     PK11SymKey               *symKey;
     PK11SlotInfo             *slot;
     SECAlgorithmID           *symmAlg;
     CRMFEncryptedValue       *myEncrValue = NULL;
     encodedParam.data = NULL;
     wrappedSymKeyBits  = PORT_NewArray(unsigned char, MAX_WRAPPED_KEY_LEN);
     wrappedPrivKeyBits = PORT_NewArray(unsigned char, MAX_WRAPPED_KEY_LEN);
     if (wrappedSymKeyBits == NULL || wrappedPrivKeyBits == NULL) {
         goto loser;
     }
     if (destValue == NULL) {
         myEncrValue = destValue = PORT_ZNew(CRMFEncryptedValue);
 	if (destValue == NULL) {
 	    goto loser;
 	}
     }
     pubMechType = crmf_get_mechanism_from_public_key(inCAKey);
     if (pubMechType == CKM_INVALID_MECHANISM) {
         /* XXX I should probably do something here for non-RSA
 	 *     keys that are in certs. (ie DSA)
 	 * XXX or at least SET AN ERROR CODE.
 	 */
         goto loser;
     }
     slot = inPrivKey->pkcs11Slot;
     PORT_Assert(slot != NULL);
     symKeyType = crmf_get_best_privkey_wrap_mechanism(slot);
     symKey = PK11_KeyGen(slot, symKeyType, NULL, 0, NULL);
     if (symKey == NULL) {
         goto loser;
     }
     wrappedSymKey.data = wrappedSymKeyBits;
     wrappedSymKey.len  = MAX_WRAPPED_KEY_LEN;
     rv = PK11_PubWrapSymKey(pubMechType, inCAKey, symKey, &wrappedSymKey);
     if (rv != SECSuccess) {
         goto loser;
     }
     /* Make the length of the result a Bit String length. */
     wrappedSymKey.len <<= 3;
     wrappedPrivKey.data = wrappedPrivKeyBits;
     wrappedPrivKey.len  = MAX_WRAPPED_KEY_LEN;
     iv = crmf_get_iv(symKeyType);
     rv = PK11_WrapPrivKey(slot, symKey, inPrivKey, symKeyType, iv,
 			  &wrappedPrivKey, NULL);
     PK11_FreeSymKey(symKey);
     if (rv != SECSuccess) {
         goto loser;
     }
     /* Make the length of the result a Bit String length. */
     wrappedPrivKey.len <<= 3;
     rv = crmf_make_bitstring_copy(NULL,
 				  &destValue->encValue,
 				  &wrappedPrivKey);
     if (rv != SECSuccess) {
         goto loser;
     }
     rv = crmf_make_bitstring_copy(NULL,
 				  &destValue->encSymmKey,
 				  &wrappedSymKey);
     if (rv != SECSuccess) {
         goto loser;
     }
     destValue->symmAlg = symmAlg = PORT_ZNew(SECAlgorithmID);
     if (symmAlg == NULL) {
         goto loser;
     }
     dummy = SEC_ASN1EncodeItem(NULL, &encodedParam, iv,
                                SEC_ASN1_GET(SEC_OctetStringTemplate));
     if (dummy != &encodedParam) {
         SECITEM_FreeItem(dummy, PR_TRUE);
 	goto loser;
     }
     symKeyType = crmf_get_non_pad_mechanism(symKeyType);
     tag = PK11_MechanismToAlgtag(symKeyType);
     rv = SECOID_SetAlgorithmID(NULL, symmAlg, tag, &encodedParam);
     if (rv != SECSuccess) {
         goto loser;
     }
     SECITEM_FreeItem(&encodedParam, PR_FALSE);
     PORT_Free(wrappedPrivKeyBits);
     PORT_Free(wrappedSymKeyBits);
     SECITEM_FreeItem(iv, PR_TRUE);
     return destValue;
  loser:
     if (iv != NULL) {
 	SECITEM_FreeItem(iv, PR_TRUE);
     }
     if (myEncrValue != NULL) {
         crmf_destroy_encrypted_value(myEncrValue, PR_TRUE);
     }
     if (wrappedSymKeyBits != NULL) {
         PORT_Free(wrappedSymKeyBits);
     }
     if (wrappedPrivKeyBits != NULL) {
         PORT_Free(wrappedPrivKeyBits);
     }
     if (encodedParam.data != NULL) {
 	SECITEM_FreeItem(&encodedParam, PR_FALSE);
     }
     return NULL;
 }
 CRMFEncryptedKey*
 CRMF_CreateEncryptedKeyWithEncryptedValue (SECKEYPrivateKey *inPrivKey,
 					   CERTCertificate  *inCACert)
 {
     SECKEYPublicKey          *caPubKey = NULL;
     CRMFEncryptedKey         *encKey = NULL;
     CRMFEncryptedValue       *dummy;
     PORT_Assert(inPrivKey != NULL && inCACert != NULL);
     if (inPrivKey == NULL || inCACert == NULL) {
         return NULL;
     }
     caPubKey = CERT_ExtractPublicKey(inCACert);
     if (caPubKey == NULL) {
         goto loser;
     }
     encKey = PORT_ZNew(CRMFEncryptedKey);
     if (encKey == NULL) {
         goto loser;
     }
     dummy = crmf_create_encrypted_value_wrapped_privkey(inPrivKey,
 							caPubKey,
 					       &encKey->value.encryptedValue);
     PORT_Assert(dummy == &encKey->value.encryptedValue);
     /* We won't add the der value here, but rather when it
      * becomes part of a certificate request.
      */
     SECKEY_DestroyPublicKey(caPubKey);
     encKey->encKeyChoice = crmfEncryptedValueChoice;
     return encKey;
  loser:
     if (encKey != NULL) {
         CRMF_DestroyEncryptedKey(encKey);
     }
     if (caPubKey != NULL) {
         SECKEY_DestroyPublicKey(caPubKey);
     }
     return NULL;
 }
 SECStatus
 CRMF_DestroyEncryptedKey(CRMFEncryptedKey *inEncrKey)
 {
     return crmf_destroy_encrypted_key(inEncrKey, PR_TRUE);
 }
 SECStatus
 crmf_copy_pkiarchiveoptions(PLArenaPool           *poolp,
 			    CRMFPKIArchiveOptions *destOpt,
 			    CRMFPKIArchiveOptions *srcOpt)
 {
     SECStatus rv;
     destOpt->archOption = srcOpt->archOption;
     switch (srcOpt->archOption) {
     case crmfEncryptedPrivateKey:
         rv = crmf_copy_encryptedkey(poolp,
 				    &srcOpt->option.encryptedKey,
 				    &destOpt->option.encryptedKey);
         break;
     case crmfKeyGenParameters:
     case crmfArchiveRemGenPrivKey:
         /* We've got a union, so having a pointer to one is just
 	 * like having a pointer to the other one.
 	 */
         rv = SECITEM_CopyItem(poolp,
 			      &destOpt->option.keyGenParameters,
 			      &srcOpt->option.keyGenParameters);
 	break;
     default:
         rv = SECFailure;
     }
     return rv;
 }
 static SECStatus
 crmf_check_and_adjust_archoption(CRMFControl *inControl)
 {
     CRMFPKIArchiveOptions *options;
     options = &inControl->value.archiveOptions;
     if (options->archOption == crmfNoArchiveOptions) {
         /* It hasn't been set, so figure it out from the
 	 * der.
 	 */
         switch (inControl->derValue.data[0] & 0x0f) {
 	case 0:
 	    options->archOption = crmfEncryptedPrivateKey;
 	    break;
 	case 1:
 	    options->archOption = crmfKeyGenParameters;
 	    break;
 	case 2:
 	    options->archOption = crmfArchiveRemGenPrivKey;
 	    break;
 	default:
 	    /* We've got bad DER.  Return an error. */
 	    return SECFailure;
 	}
     }
     return SECSuccess;
 }
 static const SEC_ASN1Template *
 crmf_get_pkiarchive_subtemplate(CRMFControl *inControl)
 {
     const SEC_ASN1Template *retTemplate;
     SECStatus               rv;
     /*
      * We could be in the process of decoding, in which case the
      * archOption field will not be set.  Let's check it and set
      * it accordingly.
      */
     rv = crmf_check_and_adjust_archoption(inControl);
     if (rv != SECSuccess) {
         return NULL;
     }
     switch (inControl->value.archiveOptions.archOption) {
     case crmfEncryptedPrivateKey:
         retTemplate = CRMFEncryptedKeyWithEncryptedValueTemplate;
 	inControl->value.archiveOptions.option.encryptedKey.encKeyChoice =
 	  crmfEncryptedValueChoice;
 	break;
     default:
         retTemplate = NULL;
     }
     return retTemplate;
 }
 const SEC_ASN1Template*
 crmf_get_pkiarchiveoptions_subtemplate(CRMFControl *inControl)
 {
     const SEC_ASN1Template *retTemplate;
     switch (inControl->tag) {
     case SEC_OID_PKIX_REGCTRL_REGTOKEN:
     case SEC_OID_PKIX_REGCTRL_AUTHENTICATOR:
         retTemplate = SEC_ASN1_GET(SEC_UTF8StringTemplate);
 	break;
     case SEC_OID_PKIX_REGCTRL_PKI_ARCH_OPTIONS:
         retTemplate = crmf_get_pkiarchive_subtemplate(inControl);
 	break;
     case SEC_OID_PKIX_REGCTRL_PKIPUBINFO:
     case SEC_OID_PKIX_REGCTRL_OLD_CERT_ID:
     case SEC_OID_PKIX_REGCTRL_PROTOCOL_ENC_KEY:
         /* We don't support these controls, so we fail for now.*/
         retTemplate = NULL;
 	break;
     default:
         retTemplate = NULL;
     }
     return retTemplate;
 }
 static SECStatus
 crmf_encode_pkiarchiveoptions(PLArenaPool *poolp, CRMFControl *inControl)
 {
     const SEC_ASN1Template *asn1Template;
     asn1Template = crmf_get_pkiarchiveoptions_subtemplate(inControl);
     /* We've got a union, so passing a pointer to one element of the
      * union, is the same as passing a pointer to any of the other
      * members of the union.
      */
     SEC_ASN1EncodeItem(poolp, &inControl->derValue,
                        &inControl->value.archiveOptions, asn1Template);
     if (inControl->derValue.data == NULL) {
         goto loser;
     }
     return SECSuccess;
  loser:
     return SECFailure;
 }
 SECStatus
 CRMF_CertRequestSetPKIArchiveOptions(CRMFCertRequest       *inCertReq,
 				     CRMFPKIArchiveOptions *inOptions)
 {
     CRMFControl *newControl;
     PLArenaPool *poolp;
     SECStatus    rv;
     void        *mark;
     PORT_Assert(inCertReq != NULL && inOptions != NULL);
     if (inCertReq == NULL || inOptions == NULL) {
         return SECFailure;
     }
     poolp = inCertReq->poolp;
     mark = PORT_ArenaMark(poolp);
     rv = crmf_add_new_control(inCertReq,
 			      SEC_OID_PKIX_REGCTRL_PKI_ARCH_OPTIONS,
 			      &newControl);
     if (rv != SECSuccess) {
         goto loser;
     }
     rv = crmf_copy_pkiarchiveoptions(poolp,
 				     &newControl->value.archiveOptions,
 				     inOptions);
     if (rv != SECSuccess) {
         goto loser;
     }
     rv = crmf_encode_pkiarchiveoptions(poolp, newControl);
     if (rv != SECSuccess) {
         goto loser;
     }
     PORT_ArenaUnmark(poolp, mark);
     return SECSuccess;
  loser:
     PORT_ArenaRelease(poolp, mark);
     return SECFailure;
 }
 static SECStatus
 crmf_destroy_control(CRMFControl *inControl, PRBool freeit)
 {
     PORT_Assert(inControl != NULL);
     if (inControl != NULL) {
         SECITEM_FreeItem(&inControl->derTag, PR_FALSE);
         SECITEM_FreeItem(&inControl->derValue, PR_FALSE);
 	/* None of the other tags require special processing at
 	 * the moment when freeing because they are not supported,
 	 * but if/when they are, add the necessary routines here.
 	 * If all controls are supported, then every member of the
 	 * union inControl->value will have a case that deals with
 	 * it in the following switch statement.
 	 */
 	switch (inControl->tag) {
 	case SEC_OID_PKIX_REGCTRL_PKI_ARCH_OPTIONS:
 	    crmf_destroy_pkiarchiveoptions(&inControl->value.archiveOptions,
 					   PR_FALSE);
 	    break;
         default:
            /* Put this here to get rid of all those annoying warnings.*/
            break;
 	}
 	if (freeit) {
 	    PORT_Free(inControl);
 	}
     }
     return SECSuccess;
 }
 SECStatus
 CRMF_DestroyControl(CRMFControl *inControl)
 {
     return crmf_destroy_control(inControl, PR_TRUE);
 }
 static SECOidTag
 crmf_controltype_to_tag(CRMFControlType inControlType)
 {
     SECOidTag retVal;
     switch(inControlType) {
     case crmfRegTokenControl:
       retVal = SEC_OID_PKIX_REGCTRL_REGTOKEN;
       break;
     case crmfAuthenticatorControl:
       retVal = SEC_OID_PKIX_REGCTRL_AUTHENTICATOR;
       break;
     case crmfPKIPublicationInfoControl:
       retVal = SEC_OID_PKIX_REGCTRL_PKIPUBINFO;
       break;
     case crmfPKIArchiveOptionsControl:
       retVal = SEC_OID_PKIX_REGCTRL_PKI_ARCH_OPTIONS;
       break;
     case crmfOldCertIDControl:
       retVal = SEC_OID_PKIX_REGCTRL_OLD_CERT_ID;
       break;
     case crmfProtocolEncrKeyControl:
       retVal = SEC_OID_PKIX_REGCTRL_PROTOCOL_ENC_KEY;
       break;
     default:
       retVal = SEC_OID_UNKNOWN;
       break;
     }
     return retVal;
 }
 PRBool
 CRMF_CertRequestIsControlPresent(CRMFCertRequest *inCertReq,
 				 CRMFControlType  inControlType)
 {
     SECOidTag controlTag;
     int       i;
     PORT_Assert(inCertReq != NULL);
     if (inCertReq == NULL || inCertReq->controls == NULL) {
         return PR_FALSE;
     }
     controlTag = crmf_controltype_to_tag(inControlType);
     for (i=0; inCertReq->controls[i] != NULL; i++) {
         if (inCertReq->controls[i]->tag == controlTag) {
 	    return PR_TRUE;
 	}
     }
     return PR_FALSE;
 }

The Tor Browser / annotate

security/nss/lib/crmf/crmfcont.c@6474c204b198 (annotated)

security/nss/lib/crmf/crmfcont.c