SECStatus
crmf_encode_unsigned_integer(PLArenaPool *poolp, SECItem *dest,
unsigned long value)
{
SECItem *dummy;
dummy = SEC_ASN1EncodeUnsignedInteger(poolp, dest, value);
PORT_Assert (dummy == dest);
if (dummy != dest) {
return SECFailure;
}
return SECSuccess;
}
SECStatus CERT_EncodeBasicConstraintValue
(PRArenaPool *arena, CERTBasicConstraints *value, SECItem *encodedValue)
{
EncodedContext encodeContext;
PRArenaPool *our_pool = NULL;
SECStatus rv = SECSuccess;
do {
PORT_Memset (&encodeContext, 0, sizeof (encodeContext));
if (!value->isCA && value->pathLenConstraint >= 0) {
PORT_SetError (SEC_ERROR_EXTENSION_VALUE_INVALID);
GEN_BREAK (SECFailure);
}
encodeContext.arena = arena;
if (value->isCA == PR_TRUE) {
encodeContext.isCA.data = &hexTrue ;
encodeContext.isCA.len = 1;
}
/* If the pathLenConstraint is less than 0, then it should be
* omitted from the encoding.
*/
if (value->isCA && value->pathLenConstraint >= 0) {
our_pool = PORT_NewArena (SEC_ASN1_DEFAULT_ARENA_SIZE);
if (our_pool == NULL) {
PORT_SetError (SEC_ERROR_NO_MEMORY);
GEN_BREAK (SECFailure);
}
if (SEC_ASN1EncodeUnsignedInteger
(our_pool, &encodeContext.pathLenConstraint,
(unsigned long)value->pathLenConstraint) == NULL) {
PORT_SetError (SEC_ERROR_NO_MEMORY);
GEN_BREAK (SECFailure);
}
}
if (SEC_ASN1EncodeItem (arena, encodedValue, &encodeContext,
CERTBasicConstraintsTemplate) == NULL) {
GEN_BREAK (SECFailure);
}
} while (0);
if (our_pool)
PORT_FreeArena (our_pool, PR_FALSE);
return(rv);
}
/* turn a PKCS #11 parameter into a DER Encoded Algorithm ID */
SECStatus
PK11_ParamToAlgid(SECOidTag algTag, SECItem *param,
PRArenaPool *arena, SECAlgorithmID *algid) {
CK_RC2_CBC_PARAMS *rc2_params;
sec_rc2cbcParameter rc2;
CK_RC5_CBC_PARAMS *rc5_params;
sec_rc5cbcParameter rc5;
CK_MECHANISM_TYPE type = PK11_AlgtagToMechanism(algTag);
SECItem *newParams = NULL;
SECStatus rv = SECFailure;
unsigned long rc2version;
switch (type) {
case CKM_RC4:
case CKM_SEED_ECB:
case CKM_CAMELLIA_ECB:
case CKM_AES_ECB:
case CKM_DES_ECB:
case CKM_DES3_ECB:
case CKM_IDEA_ECB:
case CKM_CDMF_ECB:
case CKM_CAST_ECB:
case CKM_CAST3_ECB:
case CKM_CAST5_ECB:
newParams = NULL;
rv = SECSuccess;
break;
case CKM_RC2_ECB:
break;
case CKM_RC2_CBC:
case CKM_RC2_CBC_PAD:
rc2_params = (CK_RC2_CBC_PARAMS *)param->data;
rc2version = rc2_unmap(rc2_params->ulEffectiveBits);
if (SEC_ASN1EncodeUnsignedInteger (NULL, &(rc2.rc2ParameterVersion),
rc2version) == NULL)
break;
rc2.iv.data = rc2_params->iv;
rc2.iv.len = sizeof(rc2_params->iv);
newParams = SEC_ASN1EncodeItem (NULL, NULL, &rc2,
sec_rc2cbc_parameter_template);
PORT_Free(rc2.rc2ParameterVersion.data);
if (newParams == NULL)
break;
rv = SECSuccess;
break;
case CKM_RC5_ECB: /* well not really... */
break;
case CKM_RC5_CBC:
case CKM_RC5_CBC_PAD:
rc5_params = (CK_RC5_CBC_PARAMS *)param->data;
if (SEC_ASN1EncodeUnsignedInteger (NULL, &rc5.version, RC5_V10) == NULL)
break;
if (SEC_ASN1EncodeUnsignedInteger (NULL, &rc5.blockSizeInBits,
rc5_params->ulWordsize*8) == NULL) {
PORT_Free(rc5.version.data);
break;
}
if (SEC_ASN1EncodeUnsignedInteger (NULL, &rc5.rounds,
rc5_params->ulWordsize*8) == NULL) {
PORT_Free(rc5.blockSizeInBits.data);
PORT_Free(rc5.version.data);
break;
}
rc5.iv.data = rc5_params->pIv;
rc5.iv.len = rc5_params->ulIvLen;
newParams = SEC_ASN1EncodeItem (NULL, NULL, &rc5,
sec_rc5cbc_parameter_template);
PORT_Free(rc5.version.data);
PORT_Free(rc5.blockSizeInBits.data);
PORT_Free(rc5.rounds.data);
if (newParams == NULL)
break;
rv = SECSuccess;
break;
case CKM_PBE_MD2_DES_CBC:
case CKM_PBE_MD5_DES_CBC:
case CKM_NETSCAPE_PBE_SHA1_DES_CBC:
case CKM_NETSCAPE_PBE_SHA1_TRIPLE_DES_CBC:
case CKM_NETSCAPE_PBE_SHA1_FAULTY_3DES_CBC:
case CKM_NETSCAPE_PBE_SHA1_40_BIT_RC2_CBC:
case CKM_NETSCAPE_PBE_SHA1_128_BIT_RC2_CBC:
case CKM_NETSCAPE_PBE_SHA1_40_BIT_RC4:
case CKM_NETSCAPE_PBE_SHA1_128_BIT_RC4:
case CKM_PBE_SHA1_DES3_EDE_CBC:
case CKM_PBE_SHA1_DES2_EDE_CBC:
case CKM_PBE_SHA1_RC2_40_CBC:
case CKM_PBE_SHA1_RC2_128_CBC:
case CKM_PBE_SHA1_RC4_40:
case CKM_PBE_SHA1_RC4_128:
return PBE_PK11ParamToAlgid(algTag, param, arena, algid);
default:
if (pk11_lookup(type)->iv == 0) {
rv = SECSuccess;
newParams = NULL;
break;
}
case CKM_SEED_CBC:
case CKM_CAMELLIA_CBC:
case CKM_AES_CBC:
case CKM_DES_CBC:
case CKM_DES3_CBC:
case CKM_IDEA_CBC:
case CKM_CDMF_CBC:
case CKM_CAST_CBC:
case CKM_CAST3_CBC:
case CKM_CAST5_CBC:
case CKM_DES_CBC_PAD:
case CKM_DES3_CBC_PAD:
case CKM_IDEA_CBC_PAD:
case CKM_CDMF_CBC_PAD:
case CKM_CAST_CBC_PAD:
case CKM_CAST3_CBC_PAD:
case CKM_CAST5_CBC_PAD:
case CKM_SKIPJACK_CBC64:
case CKM_SKIPJACK_ECB64:
case CKM_SKIPJACK_OFB64:
case CKM_SKIPJACK_CFB64:
case CKM_SKIPJACK_CFB32:
case CKM_SKIPJACK_CFB16:
case CKM_SKIPJACK_CFB8:
case CKM_BATON_ECB128:
case CKM_BATON_ECB96:
case CKM_BATON_CBC128:
case CKM_BATON_COUNTER:
case CKM_BATON_SHUFFLE:
case CKM_JUNIPER_ECB128:
case CKM_JUNIPER_CBC128:
case CKM_JUNIPER_COUNTER:
case CKM_JUNIPER_SHUFFLE:
newParams = SEC_ASN1EncodeItem(NULL,NULL,param,
SEC_ASN1_GET(SEC_OctetStringTemplate) );
if (newParams == NULL)
break;
rv = SECSuccess;
break;
}
if (rv != SECSuccess) {
if (newParams) SECITEM_FreeItem(newParams,PR_TRUE);
return rv;
}
rv = SECOID_SetAlgorithmID(arena, algid, algTag, newParams);
SECITEM_FreeItem(newParams,PR_TRUE);
return rv;
}
static SecCmsCipherContext *
SecCmsCipherContextStart(PRArenaPool *poolp, SecSymmetricKeyRef key, SECAlgorithmID *algid, PRBool encrypt)
{
SecCmsCipherContext *cc;
CSSM_CC_HANDLE ciphercc = 0;
SECOidData *oidData;
SECOidTag algtag;
CSSM_ALGORITHMS algorithm;
CSSM_PADDING padding = CSSM_PADDING_PKCS7;
CSSM_ENCRYPT_MODE mode;
CSSM_CSP_HANDLE cspHandle;
const CSSM_KEY *cssmKey;
OSStatus rv;
uint8 ivbuf[8];
CSSM_DATA initVector = { sizeof(ivbuf), ivbuf };
//CSSM_CONTEXT_ATTRIBUTE contextAttribute = { CSSM_ATTRIBUTE_ALG_PARAMS, sizeof(CSSM_DATA_PTR) };
rv = SecKeyGetCSPHandle(key, &cspHandle);
if (rv)
goto loser;
rv = SecKeyGetCSSMKey(key, &cssmKey);
if (rv)
goto loser;
// @@@ Add support for PBE based stuff
oidData = SECOID_FindOID(&algid->algorithm);
if (!oidData)
goto loser;
algtag = oidData->offset;
algorithm = oidData->cssmAlgorithm;
if (!algorithm)
goto loser;
switch (algtag)
{
case SEC_OID_RC2_CBC:
case SEC_OID_RC4:
case SEC_OID_DES_EDE3_CBC:
case SEC_OID_DES_EDE:
case SEC_OID_DES_CBC:
case SEC_OID_RC5_CBC_PAD:
case SEC_OID_AES_128_CBC:
case SEC_OID_AES_192_CBC:
case SEC_OID_AES_256_CBC:
case SEC_OID_FORTEZZA_SKIPJACK:
mode = CSSM_ALGMODE_CBCPadIV8;
break;
case SEC_OID_DES_ECB:
case SEC_OID_AES_128_ECB:
case SEC_OID_AES_192_ECB:
case SEC_OID_AES_256_ECB:
mode = CSSM_ALGMODE_ECBPad;
break;
case SEC_OID_DES_OFB:
mode = CSSM_ALGMODE_OFBPadIV8;
break;
case SEC_OID_DES_CFB:
mode = CSSM_ALGMODE_CFBPadIV8;
break;
default:
goto loser;
}
if (encrypt)
{
CSSM_CC_HANDLE randomcc;
//SECItem *parameters;
// Generate random initVector
if (CSSM_CSP_CreateRandomGenContext(cspHandle,
CSSM_ALGID_APPLE_YARROW,
NULL, /* seed*/
initVector.Length,
&randomcc))
goto loser;
if (CSSM_GenerateRandom(randomcc, &initVector))
goto loser;
CSSM_DeleteContext(randomcc);
// Put IV into algid.parameters
switch (algtag)
{
case SEC_OID_RC4:
case SEC_OID_DES_EDE3_CBC:
case SEC_OID_DES_EDE:
case SEC_OID_DES_CBC:
case SEC_OID_AES_128_CBC:
case SEC_OID_AES_192_CBC:
case SEC_OID_AES_256_CBC:
case SEC_OID_FORTEZZA_SKIPJACK:
case SEC_OID_DES_ECB:
case SEC_OID_AES_128_ECB:
case SEC_OID_AES_192_ECB:
case SEC_OID_AES_256_ECB:
case SEC_OID_DES_OFB:
case SEC_OID_DES_CFB:
/* Just encode the initVector as an octet string. */
if (!SEC_ASN1EncodeItem(poolp, &algid->parameters,
&initVector, SEC_OctetStringTemplate))
goto loser;
break;
case SEC_OID_RC2_CBC:
{
sec_rc2cbcParameter rc2 = {};
unsigned long rc2version;
SECItem *newParams;
rc2.iv = initVector;
rc2version = rc2_unmap(cssmKey->KeyHeader.LogicalKeySizeInBits);
if (!SEC_ASN1EncodeUnsignedInteger (NULL, &(rc2.rc2ParameterVersion),
rc2version))
goto loser;
newParams = SEC_ASN1EncodeItem (poolp, &algid->parameters, &rc2,
sec_rc2cbc_parameter_template);
PORT_Free(rc2.rc2ParameterVersion.Data);
if (newParams == NULL)
goto loser;
break;
}
case SEC_OID_RC5_CBC_PAD:
default:
// @@@ Implement rc5 params stuff.
goto loser;
break;
}
}
else
{
// Extract IV from algid.parameters
// Put IV into algid.parameters
switch (algtag)
{
case SEC_OID_RC4:
case SEC_OID_DES_EDE3_CBC:
case SEC_OID_DES_EDE:
case SEC_OID_DES_CBC:
case SEC_OID_AES_128_CBC:
case SEC_OID_AES_192_CBC:
case SEC_OID_AES_256_CBC:
case SEC_OID_FORTEZZA_SKIPJACK:
case SEC_OID_DES_ECB:
case SEC_OID_AES_128_ECB:
case SEC_OID_AES_192_ECB:
case SEC_OID_AES_256_ECB:
case SEC_OID_DES_OFB:
case SEC_OID_DES_CFB:
{
CSSM_DATA iv = {};
/* Just decode the initVector from an octet string. */
rv = SEC_ASN1DecodeItem(NULL, &iv, SEC_OctetStringTemplate, &(algid->parameters));
if (rv)
goto loser;
if (initVector.Length != iv.Length) {
PORT_Free(iv.Data);
goto loser;
}
memcpy(initVector.Data, iv.Data, initVector.Length);
PORT_Free(iv.Data);
break;
}
case SEC_OID_RC2_CBC:
{
sec_rc2cbcParameter rc2 = {};
unsigned long ulEffectiveBits;
rv = SEC_ASN1DecodeItem(NULL, &rc2 ,sec_rc2cbc_parameter_template,
&(algid->parameters));
if (rv)
goto loser;
if (initVector.Length != rc2.iv.Length) {
PORT_Free(rc2.iv.Data);
PORT_Free(rc2.rc2ParameterVersion.Data);
goto loser;
}
memcpy(initVector.Data, rc2.iv.Data, initVector.Length);
PORT_Free(rc2.iv.Data);
ulEffectiveBits = rc2_map(&rc2.rc2ParameterVersion);
PORT_Free(rc2.rc2ParameterVersion.Data);
if (ulEffectiveBits != cssmKey->KeyHeader.LogicalKeySizeInBits)
goto loser;
break;
}
case SEC_OID_RC5_CBC_PAD:
default:
// @@@ Implement rc5 params stuff.
goto loser;
break;
}
}
if (CSSM_CSP_CreateSymmetricContext(cspHandle,
algorithm,
mode,
NULL, /* accessCred */
cssmKey,
&initVector,
padding,
NULL, /* reserved */
&ciphercc))
goto loser;
if (encrypt)
rv = CSSM_EncryptDataInit(ciphercc);
else
rv = CSSM_DecryptDataInit(ciphercc);
if (rv)
goto loser;
cc = (SecCmsCipherContext *)PORT_ZAlloc(sizeof(SecCmsCipherContext));
if (cc == NULL)
goto loser;
cc->cc = ciphercc;
cc->encrypt = encrypt;
return cc;
loser:
if (ciphercc)
CSSM_DeleteContext(ciphercc);
return NULL;
}
