The Tor Browser: security/nss/lib/ckfw/capi/crsa.c@b8a032363ba2 (annotated)

security/nss/lib/ckfw/capi/crsa.c@b8a032363ba2 (annotated)

security/nss/lib/ckfw/capi/crsa.c

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* 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 "ckcapi.h"
 #include "secdert.h"
 #define SSL3_SHAMD5_HASH_SIZE  36 /* LEN_MD5 (16) + LEN_SHA1 (20) */
 /*
  * ckcapi/crsa.c
  *
  * This file implements the NSSCKMDMechnaism and NSSCKMDCryptoOperation objects
  * for the RSA operation on the CAPI cryptoki module.
  */
 /*
  * write a Decimal value to a string
  */
 static char *
 putDecimalString(char *cstr, unsigned long value)
 {
   unsigned long tenpower;
   int first = 1;
   for (tenpower=10000000; tenpower; tenpower /= 10) {
     unsigned char digit = (unsigned char )(value/tenpower);
     value = value % tenpower;
     /* drop leading zeros */
     if (first && (0 == digit)) {
       continue;
     }
     first = 0;
     *cstr++ = digit + '0';
   }
   /* if value was zero, put one of them out */
   if (first) {
     *cstr++ = '0';
   }
   return cstr;
 }
 /*
  * Create a Capi OID string value from a DER OID
  */
 static char *
 nss_ckcapi_GetOidString
 (
   unsigned char *oidTag,
   unsigned int oidTagSize,
   CK_RV *pError
 )
 {
   unsigned char *oid;
   char *oidStr;
   char *cstr;
   unsigned long value;
   unsigned int oidSize;
   if (DER_OBJECT_ID != *oidTag) {
     /* wasn't an oid */
     *pError = CKR_DATA_INVALID;
     return NULL;
   }
   oid = nss_ckcapi_DERUnwrap(oidTag, oidTagSize, &oidSize, NULL);
   if (oidSize < 2) {
     *pError = CKR_DATA_INVALID;
     return NULL;
   }
   oidStr = nss_ZNEWARRAY( NULL, char, oidSize*4 );
   if ((char *)NULL == oidStr) {
     *pError = CKR_HOST_MEMORY;
     return NULL;
   }
   cstr = oidStr;
   cstr = putDecimalString(cstr, (*oid) / 40);
   *cstr++ = '.';
   cstr = putDecimalString(cstr, (*oid) % 40);
   oidSize--;
   value = 0;
   while (oidSize--) {
     oid++;
     value = (value << 7) + (*oid & 0x7f);
     if (0 == (*oid & 0x80)) {
       *cstr++ = '.';
       cstr = putDecimalString(cstr, value);
       value = 0;
     }
   }
   *cstr = 0; /* NULL terminate */
   if (value != 0) {
     nss_ZFreeIf(oidStr);
     *pError = CKR_DATA_INVALID;
     return NULL;
   }
   return oidStr;
 }
 /*
  * PKCS #11 sign for RSA expects to take a fully DER-encoded hash value,
  * which includes the hash OID. CAPI expects to take a Hash Context. While
  * CAPI does have the capability of setting a raw hash value, it does not
  * have the ability to sign an arbitrary value. This function tries to
  * reduce the passed in data into something that CAPI could actually sign.
  */
 static CK_RV
 ckcapi_GetRawHash
 (
   const NSSItem *input,
   NSSItem *hash,
   ALG_ID *hashAlg
 )
 {
    unsigned char *current;
    unsigned char *algid;
    unsigned char *oid;
    unsigned char *hashData;
    char *oidStr;
    CK_RV error;
    unsigned int oidSize;
    unsigned int size;
    /*
     * there are 2 types of hashes NSS typically tries to sign, regular
     * RSA signature format (with encoded DER_OIDS), and SSL3 Signed hashes.
     * CAPI knows not to add any oids to SSL3_Signed hashes, so if we have any
     * random hash that is exactly the same size as an SSL3 hash, then we can
     * just pass the data through. CAPI has know way of knowing if the value
     * is really a combined hash or some other arbitrary data, so it's safe to
     * handle this case first.
     */
   if (SSL3_SHAMD5_HASH_SIZE == input->size) {
     hash->data = input->data;
     hash->size = input->size;
     *hashAlg = CALG_SSL3_SHAMD5;
     return CKR_OK;
   }
   current = (unsigned char *)input->data;
   /* make sure we have a sequence tag */
   if ((DER_SEQUENCE|DER_CONSTRUCTED) != *current) {
     return CKR_DATA_INVALID;
   }
   /* parse the input block to get 1) the hash oid, and 2) the raw hash value.
    * unfortunatly CAPI doesn't have a builtin function to do this work, so
    * we go ahead and do it by hand here.
    *
    * format is:
    *  SEQUENCE {
    *     SECQUENCE { // algid
    *       OID {}    // oid
    *       ANY {}    // optional params
    *     }
    *     OCTECT {}   // hash
    */
   /* unwrap */
   algid = nss_ckcapi_DERUnwrap(current,input->size, &size, NULL);
   if (algid+size != current+input->size) {
     /* make sure there is not extra data at the end */
     return CKR_DATA_INVALID;
   }
   if ((DER_SEQUENCE|DER_CONSTRUCTED) != *algid) {
     /* wasn't an algid */
     return CKR_DATA_INVALID;
   }
   oid = nss_ckcapi_DERUnwrap(algid, size, &oidSize, &hashData);
   if (DER_OCTET_STRING != *hashData) {
     /* wasn't a hash */
     return CKR_DATA_INVALID;
   }
   /* get the real hash */
   current = hashData;
   size = size - (hashData-algid);
   hash->data = nss_ckcapi_DERUnwrap(current, size, &hash->size, NULL);
   /* get the real oid as a string. Again, Microsoft does not
    * export anything that does this for us */
   oidStr = nss_ckcapi_GetOidString(oid, oidSize, &error);
   if ((char *)NULL == oidStr ) {
     return error;
   }
   /* look up the hash alg from the oid (fortunately CAPI does to this) */
   *hashAlg = CertOIDToAlgId(oidStr);
   nss_ZFreeIf(oidStr);
   if (0 == *hashAlg) {
     return CKR_HOST_MEMORY;
   }
   /* hash looks reasonably consistent, we should be able to sign it now */
   return CKR_OK;
 }
 /*
  * So everyone else in the worlds stores their bignum data MSB first, but not
  * Microsoft, we need to byte swap everything coming into and out of CAPI.
  */
 void
 ckcapi_ReverseData(NSSItem *item)
 {
   int end = (item->size)-1;
   int middle = (item->size)/2;
   unsigned char *buf = item->data;
   int i;
   for (i=0; i < middle; i++) {
     unsigned char  tmp = buf[i];
     buf[i] = buf[end-i];
     buf[end-i] = tmp;
   }
   return;
 }
 typedef struct ckcapiInternalCryptoOperationRSAPrivStr
                ckcapiInternalCryptoOperationRSAPriv;
 struct ckcapiInternalCryptoOperationRSAPrivStr
 {
   NSSCKMDCryptoOperation mdOperation;
   NSSCKMDMechanism     *mdMechanism;
   ckcapiInternalObject *iKey;
   HCRYPTPROV           hProv;
   DWORD                keySpec;
   HCRYPTKEY            hKey;
   NSSItem	       *buffer;
 };
 /*
  * ckcapi_mdCryptoOperationRSAPriv_Create
  */
 static NSSCKMDCryptoOperation *
 ckcapi_mdCryptoOperationRSAPriv_Create
 (
   const NSSCKMDCryptoOperation *proto,
   NSSCKMDMechanism *mdMechanism,
   NSSCKMDObject *mdKey,
   CK_RV *pError
 )
 {
   ckcapiInternalObject *iKey = (ckcapiInternalObject *)mdKey->etc;
   const NSSItem *classItem = nss_ckcapi_FetchAttribute(iKey, CKA_CLASS);
   const NSSItem *keyType = nss_ckcapi_FetchAttribute(iKey, CKA_KEY_TYPE);
   ckcapiInternalCryptoOperationRSAPriv *iOperation;
   CK_RV   error;
   HCRYPTPROV  hProv;
   DWORD       keySpec;
   HCRYPTKEY   hKey;
   /* make sure we have the right objects */
   if (((const NSSItem *)NULL == classItem) ||
       (sizeof(CK_OBJECT_CLASS) != classItem->size) ||
       (CKO_PRIVATE_KEY != *(CK_OBJECT_CLASS *)classItem->data) ||
       ((const NSSItem *)NULL == keyType) ||
       (sizeof(CK_KEY_TYPE) != keyType->size) ||
       (CKK_RSA != *(CK_KEY_TYPE *)keyType->data)) {
     *pError =  CKR_KEY_TYPE_INCONSISTENT;
     return (NSSCKMDCryptoOperation *)NULL;
   }
   error = nss_ckcapi_FetchKeyContainer(iKey, &hProv, &keySpec, &hKey);
   if (error != CKR_OK) {
     *pError = error;
     return (NSSCKMDCryptoOperation *)NULL;
   }
   iOperation = nss_ZNEW(NULL, ckcapiInternalCryptoOperationRSAPriv);
   if ((ckcapiInternalCryptoOperationRSAPriv *)NULL == iOperation) {
     *pError = CKR_HOST_MEMORY;
     return (NSSCKMDCryptoOperation *)NULL;
   }
   iOperation->mdMechanism = mdMechanism;
   iOperation->iKey = iKey;
   iOperation->hProv = hProv;
   iOperation->keySpec = keySpec;
   iOperation->hKey = hKey;
   nsslibc_memcpy(&iOperation->mdOperation,
                  proto, sizeof(NSSCKMDCryptoOperation));
   iOperation->mdOperation.etc = iOperation;
   return &iOperation->mdOperation;
 }
 static CK_RV
 ckcapi_mdCryptoOperationRSAPriv_Destroy
 (
   NSSCKMDCryptoOperation *mdOperation,
   NSSCKFWCryptoOperation *fwOperation,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance
 )
 {
   ckcapiInternalCryptoOperationRSAPriv *iOperation =
        (ckcapiInternalCryptoOperationRSAPriv *)mdOperation->etc;
   if (iOperation->hKey) {
     CryptDestroyKey(iOperation->hKey);
   }
   if (iOperation->buffer) {
     nssItem_Destroy(iOperation->buffer);
   }
   nss_ZFreeIf(iOperation);
   return CKR_OK;
 }
 static CK_ULONG
 ckcapi_mdCryptoOperationRSA_GetFinalLength
 (
   NSSCKMDCryptoOperation *mdOperation,
   NSSCKFWCryptoOperation *fwOperation,
   NSSCKMDSession *mdSession,
   NSSCKFWSession *fwSession,
   NSSCKMDToken *mdToken,
   NSSCKFWToken *fwToken,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance,
   CK_RV *pError
 )
 {
   ckcapiInternalCryptoOperationRSAPriv *iOperation =
        (ckcapiInternalCryptoOperationRSAPriv *)mdOperation->etc;
   const NSSItem *modulus =
        nss_ckcapi_FetchAttribute(iOperation->iKey, CKA_MODULUS);
   return modulus->size;
 }
 /*
  * ckcapi_mdCryptoOperationRSADecrypt_GetOperationLength
  * we won't know the length until we actually decrypt the
  * input block. Since we go to all the work to decrypt the
  * the block, we'll save if for when the block is asked for
  */
 static CK_ULONG
 ckcapi_mdCryptoOperationRSADecrypt_GetOperationLength
 (
   NSSCKMDCryptoOperation *mdOperation,
   NSSCKFWCryptoOperation *fwOperation,
   NSSCKMDSession *mdSession,
   NSSCKFWSession *fwSession,
   NSSCKMDToken *mdToken,
   NSSCKFWToken *fwToken,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance,
   const NSSItem *input,
   CK_RV *pError
 )
 {
   ckcapiInternalCryptoOperationRSAPriv *iOperation =
        (ckcapiInternalCryptoOperationRSAPriv *)mdOperation->etc;
   BOOL rc;
   /* Microsoft's Decrypt operation works in place. Since we don't want
    * to trash our input buffer, we make a copy of it */
   iOperation->buffer = nssItem_Duplicate((NSSItem *)input, NULL, NULL);
   if ((NSSItem *) NULL == iOperation->buffer) {
     *pError = CKR_HOST_MEMORY;
     return 0;
   }
   /* Sigh, reverse it */
   ckcapi_ReverseData(iOperation->buffer);
   rc = CryptDecrypt(iOperation->hKey, 0, TRUE, 0,
 		    iOperation->buffer->data, &iOperation->buffer->size);
   if (!rc) {
     DWORD msError = GetLastError();
     switch (msError) {
     case NTE_BAD_DATA:
       *pError = CKR_ENCRYPTED_DATA_INVALID;
       break;
     case NTE_FAIL:
     case NTE_BAD_UID:
       *pError = CKR_DEVICE_ERROR;
       break;
     default:
       *pError = CKR_GENERAL_ERROR;
     }
     return 0;
   }
   return iOperation->buffer->size;
 }
 /*
  * ckcapi_mdCryptoOperationRSADecrypt_UpdateFinal
  *
  * NOTE: ckcapi_mdCryptoOperationRSADecrypt_GetOperationLength is presumed to
  * have been called previously.
  */
 static CK_RV
 ckcapi_mdCryptoOperationRSADecrypt_UpdateFinal
 (
   NSSCKMDCryptoOperation *mdOperation,
   NSSCKFWCryptoOperation *fwOperation,
   NSSCKMDSession *mdSession,
   NSSCKFWSession *fwSession,
   NSSCKMDToken *mdToken,
   NSSCKFWToken *fwToken,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance,
   const NSSItem *input,
   NSSItem *output
 )
 {
   ckcapiInternalCryptoOperationRSAPriv *iOperation =
        (ckcapiInternalCryptoOperationRSAPriv *)mdOperation->etc;
   NSSItem *buffer = iOperation->buffer;
   if ((NSSItem *)NULL == buffer) {
     return CKR_GENERAL_ERROR;
   }
   nsslibc_memcpy(output->data, buffer->data, buffer->size);
   output->size = buffer->size;
   return CKR_OK;
 }
 /*
  * ckcapi_mdCryptoOperationRSASign_UpdateFinal
  *
  */
 static CK_RV
 ckcapi_mdCryptoOperationRSASign_UpdateFinal
 (
   NSSCKMDCryptoOperation *mdOperation,
   NSSCKFWCryptoOperation *fwOperation,
   NSSCKMDSession *mdSession,
   NSSCKFWSession *fwSession,
   NSSCKMDToken *mdToken,
   NSSCKFWToken *fwToken,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance,
   const NSSItem *input,
   NSSItem *output
 )
 {
   ckcapiInternalCryptoOperationRSAPriv *iOperation =
        (ckcapiInternalCryptoOperationRSAPriv *)mdOperation->etc;
   CK_RV error = CKR_OK;
   DWORD msError;
   NSSItem hash;
   HCRYPTHASH hHash = 0;
   ALG_ID  hashAlg;
   DWORD  hashSize;
   DWORD  len; /* temp length value we throw away */
   BOOL   rc;
   /*
    * PKCS #11 sign for RSA expects to take a fully DER-encoded hash value,
    * which includes the hash OID. CAPI expects to take a Hash Context. While
    * CAPI does have the capability of setting a raw hash value, it does not
    * have the ability to sign an arbitrary value. This function tries to
    * reduce the passed in data into something that CAPI could actually sign.
    */
   error = ckcapi_GetRawHash(input, &hash, &hashAlg);
   if (CKR_OK != error) {
     goto loser;
   }
   rc = CryptCreateHash(iOperation->hProv, hashAlg, 0, 0, &hHash);
   if (!rc) {
     goto loser;
   }
   /* make sure the hash lens match before we set it */
   len = sizeof(DWORD);
   rc = CryptGetHashParam(hHash, HP_HASHSIZE, (BYTE *)&hashSize, &len, 0);
   if (!rc) {
     goto loser;
   }
   if (hash.size != hashSize) {
     /* The input must have been bad for this to happen */
     error = CKR_DATA_INVALID;
     goto loser;
   }
   /* we have an explicit hash, set it, note that the length is
    * implicit by the hashAlg used in create */
   rc = CryptSetHashParam(hHash, HP_HASHVAL, hash.data, 0);
   if (!rc) {
     goto loser;
   }
   /* OK, we have the data in a hash structure, sign it! */
   rc = CryptSignHash(hHash, iOperation->keySpec, NULL, 0,
                      output->data, &output->size);
   if (!rc) {
     goto loser;
   }
   /* Don't return a signature that might have been broken because of a cosmic
    * ray, or a broken processor, verify that it is valid... */
   rc = CryptVerifySignature(hHash, output->data, output->size,
                             iOperation->hKey, NULL, 0);
   if (!rc) {
     goto loser;
   }
   /* OK, Microsoft likes to do things completely differently than anyone
    * else. We need to reverse the data we received here */
   ckcapi_ReverseData(output);
   CryptDestroyHash(hHash);
   return CKR_OK;
 loser:
   /* map the microsoft error */
   if (CKR_OK == error) {
     msError = GetLastError();
     switch (msError) {
     case ERROR_NOT_ENOUGH_MEMORY:
       error = CKR_HOST_MEMORY;
       break;
     case NTE_NO_MEMORY:
       error = CKR_DEVICE_MEMORY;
       break;
     case ERROR_MORE_DATA:
       return CKR_BUFFER_TOO_SMALL;
     case ERROR_INVALID_PARAMETER: /* these params were derived from the */
     case ERROR_INVALID_HANDLE:    /* inputs, so if they are bad, the input */
     case NTE_BAD_ALGID:           /* data is bad */
     case NTE_BAD_HASH:
       error = CKR_DATA_INVALID;
       break;
     case ERROR_BUSY:
     case NTE_FAIL:
     case NTE_BAD_UID:
       error = CKR_DEVICE_ERROR;
       break;
     default:
       error = CKR_GENERAL_ERROR;
       break;
     }
   }
   if (hHash) {
     CryptDestroyHash(hHash);
   }
   return error;
 }
 NSS_IMPLEMENT_DATA const NSSCKMDCryptoOperation
 ckcapi_mdCryptoOperationRSADecrypt_proto = {
   NULL, /* etc */
   ckcapi_mdCryptoOperationRSAPriv_Destroy,
   NULL, /* GetFinalLengh - not needed for one shot Decrypt/Encrypt */
   ckcapi_mdCryptoOperationRSADecrypt_GetOperationLength,
   NULL, /* Final - not needed for one shot operation */
   NULL, /* Update - not needed for one shot operation */
   NULL, /* DigetUpdate - not needed for one shot operation */
   ckcapi_mdCryptoOperationRSADecrypt_UpdateFinal,
   NULL, /* UpdateCombo - not needed for one shot operation */
   NULL, /* DigetKey - not needed for one shot operation */
   (void *)NULL /* null terminator */
 };
 NSS_IMPLEMENT_DATA const NSSCKMDCryptoOperation
 ckcapi_mdCryptoOperationRSASign_proto = {
   NULL, /* etc */
   ckcapi_mdCryptoOperationRSAPriv_Destroy,
   ckcapi_mdCryptoOperationRSA_GetFinalLength,
   NULL, /* GetOperationLengh - not needed for one shot Sign/Verify */
   NULL, /* Final - not needed for one shot operation */
   NULL, /* Update - not needed for one shot operation */
   NULL, /* DigetUpdate - not needed for one shot operation */
   ckcapi_mdCryptoOperationRSASign_UpdateFinal,
   NULL, /* UpdateCombo - not needed for one shot operation */
   NULL, /* DigetKey - not needed for one shot operation */
   (void *)NULL /* null terminator */
 };
 /********** NSSCKMDMechansim functions ***********************/
 /*
  * ckcapi_mdMechanismRSA_Destroy
  */
 static void
 ckcapi_mdMechanismRSA_Destroy
 (
   NSSCKMDMechanism *mdMechanism,
   NSSCKFWMechanism *fwMechanism,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance
 )
 {
   nss_ZFreeIf(fwMechanism);
 }
 /*
  * ckcapi_mdMechanismRSA_GetMinKeySize
  */
 static CK_ULONG
 ckcapi_mdMechanismRSA_GetMinKeySize
 (
   NSSCKMDMechanism *mdMechanism,
   NSSCKFWMechanism *fwMechanism,
   NSSCKMDToken *mdToken,
   NSSCKFWToken *fwToken,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance,
   CK_RV *pError
 )
 {
   return 384;
 }
 /*
  * ckcapi_mdMechanismRSA_GetMaxKeySize
  */
 static CK_ULONG
 ckcapi_mdMechanismRSA_GetMaxKeySize
 (
   NSSCKMDMechanism *mdMechanism,
   NSSCKFWMechanism *fwMechanism,
   NSSCKMDToken *mdToken,
   NSSCKFWToken *fwToken,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance,
   CK_RV *pError
 )
 {
   return 16384;
 }
 /*
  * ckcapi_mdMechanismRSA_DecryptInit
  */
 static NSSCKMDCryptoOperation *
 ckcapi_mdMechanismRSA_DecryptInit
 (
   NSSCKMDMechanism *mdMechanism,
   NSSCKFWMechanism *fwMechanism,
   CK_MECHANISM     *pMechanism,
   NSSCKMDSession *mdSession,
   NSSCKFWSession *fwSession,
   NSSCKMDToken *mdToken,
   NSSCKFWToken *fwToken,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance,
   NSSCKMDObject *mdKey,
   NSSCKFWObject *fwKey,
   CK_RV *pError
 )
 {
   return ckcapi_mdCryptoOperationRSAPriv_Create(
 		&ckcapi_mdCryptoOperationRSADecrypt_proto,
 		mdMechanism, mdKey, pError);
 }
 /*
  * ckcapi_mdMechanismRSA_SignInit
  */
 static NSSCKMDCryptoOperation *
 ckcapi_mdMechanismRSA_SignInit
 (
   NSSCKMDMechanism *mdMechanism,
   NSSCKFWMechanism *fwMechanism,
   CK_MECHANISM     *pMechanism,
   NSSCKMDSession *mdSession,
   NSSCKFWSession *fwSession,
   NSSCKMDToken *mdToken,
   NSSCKFWToken *fwToken,
   NSSCKMDInstance *mdInstance,
   NSSCKFWInstance *fwInstance,
   NSSCKMDObject *mdKey,
   NSSCKFWObject *fwKey,
   CK_RV *pError
 )
 {
   return ckcapi_mdCryptoOperationRSAPriv_Create(
 		&ckcapi_mdCryptoOperationRSASign_proto,
 		mdMechanism, mdKey, pError);
 }
 NSS_IMPLEMENT_DATA const NSSCKMDMechanism
 nss_ckcapi_mdMechanismRSA = {
   (void *)NULL, /* etc */
   ckcapi_mdMechanismRSA_Destroy,
   ckcapi_mdMechanismRSA_GetMinKeySize,
   ckcapi_mdMechanismRSA_GetMaxKeySize,
   NULL, /* GetInHardware - default false */
   NULL, /* EncryptInit - default errs */
   ckcapi_mdMechanismRSA_DecryptInit,
   NULL, /* DigestInit - default errs*/
   ckcapi_mdMechanismRSA_SignInit,
   NULL, /* VerifyInit - default errs */
   ckcapi_mdMechanismRSA_SignInit,  /* SignRecoverInit */
   NULL, /* VerifyRecoverInit - default errs */
   NULL, /* GenerateKey - default errs */
   NULL, /* GenerateKeyPair - default errs */
   NULL, /* GetWrapKeyLength - default errs */
   NULL, /* WrapKey - default errs */
   NULL, /* UnwrapKey - default errs */
   NULL, /* DeriveKey - default errs */
   (void *)NULL /* null terminator */
 };

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security/nss/lib/ckfw/capi/crsa.c@b8a032363ba2 (annotated)

security/nss/lib/ckfw/capi/crsa.c