mirror of
https://github.com/mozilla/gecko-dev.git
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493 lines
16 KiB
C
493 lines
16 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "lowkeyi.h"
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#include "secoid.h"
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#include "secitem.h"
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#include "secder.h"
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#include "base64.h"
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#include "secasn1.h"
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#include "secerr.h"
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#ifndef NSS_DISABLE_ECC
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#include "softoken.h"
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#endif
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SEC_ASN1_MKSUB(SEC_AnyTemplate)
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SEC_ASN1_MKSUB(SEC_BitStringTemplate)
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SEC_ASN1_MKSUB(SEC_ObjectIDTemplate)
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SEC_ASN1_MKSUB(SECOID_AlgorithmIDTemplate)
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const SEC_ASN1Template nsslowkey_AttributeTemplate[] = {
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{ SEC_ASN1_SEQUENCE,
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0, NULL, sizeof(NSSLOWKEYAttribute) },
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{ SEC_ASN1_OBJECT_ID, offsetof(NSSLOWKEYAttribute, attrType) },
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{ SEC_ASN1_SET_OF | SEC_ASN1_XTRN ,
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offsetof(NSSLOWKEYAttribute, attrValue),
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SEC_ASN1_SUB(SEC_AnyTemplate) },
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{ 0 }
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};
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const SEC_ASN1Template nsslowkey_SetOfAttributeTemplate[] = {
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{ SEC_ASN1_SET_OF, 0, nsslowkey_AttributeTemplate },
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};
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/* ASN1 Templates for new decoder/encoder */
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const SEC_ASN1Template nsslowkey_PrivateKeyInfoTemplate[] = {
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{ SEC_ASN1_SEQUENCE,
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0, NULL, sizeof(NSSLOWKEYPrivateKeyInfo) },
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{ SEC_ASN1_INTEGER,
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offsetof(NSSLOWKEYPrivateKeyInfo,version) },
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{ SEC_ASN1_INLINE | SEC_ASN1_XTRN,
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offsetof(NSSLOWKEYPrivateKeyInfo,algorithm),
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SEC_ASN1_SUB(SECOID_AlgorithmIDTemplate) },
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{ SEC_ASN1_OCTET_STRING,
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offsetof(NSSLOWKEYPrivateKeyInfo,privateKey) },
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{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_CONTEXT_SPECIFIC | 0,
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offsetof(NSSLOWKEYPrivateKeyInfo, attributes),
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nsslowkey_SetOfAttributeTemplate },
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{ 0 }
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};
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const SEC_ASN1Template nsslowkey_PQGParamsTemplate[] = {
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{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(PQGParams) },
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{ SEC_ASN1_INTEGER, offsetof(PQGParams,prime) },
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{ SEC_ASN1_INTEGER, offsetof(PQGParams,subPrime) },
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{ SEC_ASN1_INTEGER, offsetof(PQGParams,base) },
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{ 0, }
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};
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const SEC_ASN1Template nsslowkey_RSAPrivateKeyTemplate[] = {
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{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(NSSLOWKEYPrivateKey) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.version) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.modulus) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.publicExponent) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.privateExponent) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.prime1) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.prime2) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.exponent1) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.exponent2) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.coefficient) },
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{ 0 }
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};
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const SEC_ASN1Template nsslowkey_DSAPrivateKeyTemplate[] = {
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{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(NSSLOWKEYPrivateKey) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dsa.publicValue) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dsa.privateValue) },
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{ 0, }
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};
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const SEC_ASN1Template nsslowkey_DSAPrivateKeyExportTemplate[] = {
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dsa.privateValue) },
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};
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const SEC_ASN1Template nsslowkey_DHPrivateKeyTemplate[] = {
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{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(NSSLOWKEYPrivateKey) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dh.publicValue) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dh.privateValue) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dh.base) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dh.prime) },
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{ 0, }
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};
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#ifndef NSS_DISABLE_ECC
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/* XXX This is just a placeholder for later when we support
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* generic curves and need full-blown support for parsing EC
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* parameters. For now, we only support named curves in which
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* EC params are simply encoded as an object ID and we don't
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* use nsslowkey_ECParamsTemplate.
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*/
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const SEC_ASN1Template nsslowkey_ECParamsTemplate[] = {
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{ SEC_ASN1_CHOICE, offsetof(ECParams,type), NULL, sizeof(ECParams) },
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{ SEC_ASN1_OBJECT_ID, offsetof(ECParams,curveOID), NULL, ec_params_named },
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{ 0, }
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};
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/* NOTE: The SECG specification allows the private key structure
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* to contain curve parameters but recommends that they be stored
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* in the PrivateKeyAlgorithmIdentifier field of the PrivateKeyInfo
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* instead.
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*/
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const SEC_ASN1Template nsslowkey_ECPrivateKeyTemplate[] = {
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{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(NSSLOWKEYPrivateKey) },
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{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.ec.version) },
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{ SEC_ASN1_OCTET_STRING,
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offsetof(NSSLOWKEYPrivateKey,u.ec.privateValue) },
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/* XXX The following template works for now since we only
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* support named curves for which the parameters are
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* encoded as an object ID. When we support generic curves,
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* we'll need to define nsslowkey_ECParamsTemplate
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*/
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#if 1
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{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED |
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SEC_ASN1_EXPLICIT | SEC_ASN1_CONTEXT_SPECIFIC |
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SEC_ASN1_XTRN | 0,
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offsetof(NSSLOWKEYPrivateKey,u.ec.ecParams.curveOID),
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SEC_ASN1_SUB(SEC_ObjectIDTemplate) },
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#else
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{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED |
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SEC_ASN1_EXPLICIT | SEC_ASN1_CONTEXT_SPECIFIC | 0,
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offsetof(NSSLOWKEYPrivateKey,u.ec.ecParams),
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nsslowkey_ECParamsTemplate },
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#endif
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{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED |
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SEC_ASN1_EXPLICIT | SEC_ASN1_CONTEXT_SPECIFIC |
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SEC_ASN1_XTRN | 1,
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offsetof(NSSLOWKEYPrivateKey,u.ec.publicValue),
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SEC_ASN1_SUB(SEC_BitStringTemplate) },
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{ 0, }
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};
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#endif /* NSS_DISABLE_ECC */
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/*
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* See bugzilla bug 125359
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* Since NSS (via PKCS#11) wants to handle big integers as unsigned ints,
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* all of the templates above that en/decode into integers must be converted
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* from ASN.1's signed integer type. This is done by marking either the
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* source or destination (encoding or decoding, respectively) type as
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* siUnsignedInteger.
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*/
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void
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prepare_low_rsa_priv_key_for_asn1(NSSLOWKEYPrivateKey *key)
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{
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key->u.rsa.modulus.type = siUnsignedInteger;
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key->u.rsa.publicExponent.type = siUnsignedInteger;
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key->u.rsa.privateExponent.type = siUnsignedInteger;
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key->u.rsa.prime1.type = siUnsignedInteger;
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key->u.rsa.prime2.type = siUnsignedInteger;
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key->u.rsa.exponent1.type = siUnsignedInteger;
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key->u.rsa.exponent2.type = siUnsignedInteger;
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key->u.rsa.coefficient.type = siUnsignedInteger;
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}
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void
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prepare_low_pqg_params_for_asn1(PQGParams *params)
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{
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params->prime.type = siUnsignedInteger;
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params->subPrime.type = siUnsignedInteger;
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params->base.type = siUnsignedInteger;
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}
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void
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prepare_low_dsa_priv_key_for_asn1(NSSLOWKEYPrivateKey *key)
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{
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key->u.dsa.publicValue.type = siUnsignedInteger;
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key->u.dsa.privateValue.type = siUnsignedInteger;
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key->u.dsa.params.prime.type = siUnsignedInteger;
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key->u.dsa.params.subPrime.type = siUnsignedInteger;
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key->u.dsa.params.base.type = siUnsignedInteger;
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}
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void
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prepare_low_dsa_priv_key_export_for_asn1(NSSLOWKEYPrivateKey *key)
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{
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key->u.dsa.privateValue.type = siUnsignedInteger;
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}
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void
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prepare_low_dh_priv_key_for_asn1(NSSLOWKEYPrivateKey *key)
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{
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key->u.dh.prime.type = siUnsignedInteger;
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key->u.dh.base.type = siUnsignedInteger;
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key->u.dh.publicValue.type = siUnsignedInteger;
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key->u.dh.privateValue.type = siUnsignedInteger;
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}
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#ifndef NSS_DISABLE_ECC
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void
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prepare_low_ecparams_for_asn1(ECParams *params)
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{
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params->DEREncoding.type = siUnsignedInteger;
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params->curveOID.type = siUnsignedInteger;
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}
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void
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prepare_low_ec_priv_key_for_asn1(NSSLOWKEYPrivateKey *key)
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{
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key->u.ec.version.type = siUnsignedInteger;
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key->u.ec.ecParams.DEREncoding.type = siUnsignedInteger;
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key->u.ec.ecParams.curveOID.type = siUnsignedInteger;
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key->u.ec.privateValue.type = siUnsignedInteger;
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key->u.ec.publicValue.type = siUnsignedInteger;
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}
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#endif /* NSS_DISABLE_ECC */
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void
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nsslowkey_DestroyPrivateKey(NSSLOWKEYPrivateKey *privk)
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{
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if (privk && privk->arena) {
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PORT_FreeArena(privk->arena, PR_TRUE);
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}
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}
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void
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nsslowkey_DestroyPublicKey(NSSLOWKEYPublicKey *pubk)
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{
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if (pubk && pubk->arena) {
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PORT_FreeArena(pubk->arena, PR_FALSE);
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}
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}
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unsigned
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nsslowkey_PublicModulusLen(NSSLOWKEYPublicKey *pubk)
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{
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unsigned char b0;
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/* interpret modulus length as key strength... in
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* fortezza that's the public key length */
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switch (pubk->keyType) {
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case NSSLOWKEYRSAKey:
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b0 = pubk->u.rsa.modulus.data[0];
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return b0 ? pubk->u.rsa.modulus.len : pubk->u.rsa.modulus.len - 1;
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default:
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break;
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}
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return 0;
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}
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unsigned
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nsslowkey_PrivateModulusLen(NSSLOWKEYPrivateKey *privk)
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{
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unsigned char b0;
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switch (privk->keyType) {
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case NSSLOWKEYRSAKey:
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b0 = privk->u.rsa.modulus.data[0];
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return b0 ? privk->u.rsa.modulus.len : privk->u.rsa.modulus.len - 1;
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default:
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break;
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}
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return 0;
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}
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NSSLOWKEYPublicKey *
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nsslowkey_ConvertToPublicKey(NSSLOWKEYPrivateKey *privk)
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{
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NSSLOWKEYPublicKey *pubk;
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PLArenaPool *arena;
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arena = PORT_NewArena (DER_DEFAULT_CHUNKSIZE);
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if (arena == NULL) {
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PORT_SetError (SEC_ERROR_NO_MEMORY);
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return NULL;
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}
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switch(privk->keyType) {
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case NSSLOWKEYRSAKey:
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case NSSLOWKEYNullKey:
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pubk = (NSSLOWKEYPublicKey *)PORT_ArenaZAlloc(arena,
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sizeof (NSSLOWKEYPublicKey));
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if (pubk != NULL) {
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SECStatus rv;
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pubk->arena = arena;
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pubk->keyType = privk->keyType;
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if (privk->keyType == NSSLOWKEYNullKey) return pubk;
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rv = SECITEM_CopyItem(arena, &pubk->u.rsa.modulus,
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&privk->u.rsa.modulus);
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if (rv == SECSuccess) {
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rv = SECITEM_CopyItem (arena, &pubk->u.rsa.publicExponent,
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&privk->u.rsa.publicExponent);
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if (rv == SECSuccess)
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return pubk;
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}
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} else {
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PORT_SetError (SEC_ERROR_NO_MEMORY);
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}
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break;
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case NSSLOWKEYDSAKey:
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pubk = (NSSLOWKEYPublicKey *)PORT_ArenaZAlloc(arena,
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sizeof(NSSLOWKEYPublicKey));
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if (pubk != NULL) {
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SECStatus rv;
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pubk->arena = arena;
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pubk->keyType = privk->keyType;
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rv = SECITEM_CopyItem(arena, &pubk->u.dsa.publicValue,
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&privk->u.dsa.publicValue);
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if (rv != SECSuccess) break;
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rv = SECITEM_CopyItem(arena, &pubk->u.dsa.params.prime,
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&privk->u.dsa.params.prime);
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if (rv != SECSuccess) break;
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rv = SECITEM_CopyItem(arena, &pubk->u.dsa.params.subPrime,
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&privk->u.dsa.params.subPrime);
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if (rv != SECSuccess) break;
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rv = SECITEM_CopyItem(arena, &pubk->u.dsa.params.base,
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&privk->u.dsa.params.base);
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if (rv == SECSuccess) return pubk;
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}
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break;
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case NSSLOWKEYDHKey:
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pubk = (NSSLOWKEYPublicKey *)PORT_ArenaZAlloc(arena,
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sizeof(NSSLOWKEYPublicKey));
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if (pubk != NULL) {
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SECStatus rv;
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pubk->arena = arena;
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pubk->keyType = privk->keyType;
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rv = SECITEM_CopyItem(arena, &pubk->u.dh.publicValue,
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&privk->u.dh.publicValue);
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if (rv != SECSuccess) break;
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rv = SECITEM_CopyItem(arena, &pubk->u.dh.prime,
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&privk->u.dh.prime);
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if (rv != SECSuccess) break;
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rv = SECITEM_CopyItem(arena, &pubk->u.dh.base,
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&privk->u.dh.base);
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if (rv == SECSuccess) return pubk;
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}
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break;
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#ifndef NSS_DISABLE_ECC
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case NSSLOWKEYECKey:
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pubk = (NSSLOWKEYPublicKey *)PORT_ArenaZAlloc(arena,
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sizeof(NSSLOWKEYPublicKey));
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if (pubk != NULL) {
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SECStatus rv;
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pubk->arena = arena;
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pubk->keyType = privk->keyType;
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rv = SECITEM_CopyItem(arena, &pubk->u.ec.publicValue,
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&privk->u.ec.publicValue);
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if (rv != SECSuccess) break;
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pubk->u.ec.ecParams.arena = arena;
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/* Copy the rest of the params */
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rv = EC_CopyParams(arena, &(pubk->u.ec.ecParams),
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&(privk->u.ec.ecParams));
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if (rv == SECSuccess) return pubk;
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}
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break;
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#endif /* NSS_DISABLE_ECC */
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/* No Fortezza in Low Key implementations (Fortezza keys aren't
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* stored in our data base */
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default:
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break;
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}
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PORT_FreeArena (arena, PR_FALSE);
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return NULL;
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}
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NSSLOWKEYPrivateKey *
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nsslowkey_CopyPrivateKey(NSSLOWKEYPrivateKey *privKey)
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{
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NSSLOWKEYPrivateKey *returnKey = NULL;
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SECStatus rv = SECFailure;
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PLArenaPool *poolp;
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if(!privKey) {
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return NULL;
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}
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poolp = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
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if(!poolp) {
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return NULL;
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}
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returnKey = (NSSLOWKEYPrivateKey*)PORT_ArenaZAlloc(poolp, sizeof(NSSLOWKEYPrivateKey));
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if(!returnKey) {
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rv = SECFailure;
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goto loser;
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}
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returnKey->keyType = privKey->keyType;
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returnKey->arena = poolp;
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switch(privKey->keyType) {
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case NSSLOWKEYRSAKey:
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.modulus),
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&(privKey->u.rsa.modulus));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.version),
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&(privKey->u.rsa.version));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.publicExponent),
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&(privKey->u.rsa.publicExponent));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.privateExponent),
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&(privKey->u.rsa.privateExponent));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.prime1),
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&(privKey->u.rsa.prime1));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.prime2),
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&(privKey->u.rsa.prime2));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.exponent1),
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&(privKey->u.rsa.exponent1));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.exponent2),
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&(privKey->u.rsa.exponent2));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.coefficient),
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&(privKey->u.rsa.coefficient));
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if(rv != SECSuccess) break;
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break;
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case NSSLOWKEYDSAKey:
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.publicValue),
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&(privKey->u.dsa.publicValue));
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if(rv != SECSuccess) break;
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rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.privateValue),
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&(privKey->u.dsa.privateValue));
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if(rv != SECSuccess) break;
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returnKey->u.dsa.params.arena = poolp;
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.params.prime),
|
|
&(privKey->u.dsa.params.prime));
|
|
if(rv != SECSuccess) break;
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.params.subPrime),
|
|
&(privKey->u.dsa.params.subPrime));
|
|
if(rv != SECSuccess) break;
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.params.base),
|
|
&(privKey->u.dsa.params.base));
|
|
if(rv != SECSuccess) break;
|
|
break;
|
|
case NSSLOWKEYDHKey:
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dh.publicValue),
|
|
&(privKey->u.dh.publicValue));
|
|
if(rv != SECSuccess) break;
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dh.privateValue),
|
|
&(privKey->u.dh.privateValue));
|
|
if(rv != SECSuccess) break;
|
|
returnKey->u.dsa.params.arena = poolp;
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dh.prime),
|
|
&(privKey->u.dh.prime));
|
|
if(rv != SECSuccess) break;
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dh.base),
|
|
&(privKey->u.dh.base));
|
|
if(rv != SECSuccess) break;
|
|
break;
|
|
#ifndef NSS_DISABLE_ECC
|
|
case NSSLOWKEYECKey:
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.ec.version),
|
|
&(privKey->u.ec.version));
|
|
if(rv != SECSuccess) break;
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.ec.publicValue),
|
|
&(privKey->u.ec.publicValue));
|
|
if(rv != SECSuccess) break;
|
|
rv = SECITEM_CopyItem(poolp, &(returnKey->u.ec.privateValue),
|
|
&(privKey->u.ec.privateValue));
|
|
if(rv != SECSuccess) break;
|
|
returnKey->u.ec.ecParams.arena = poolp;
|
|
/* Copy the rest of the params */
|
|
rv = EC_CopyParams(poolp, &(returnKey->u.ec.ecParams),
|
|
&(privKey->u.ec.ecParams));
|
|
if (rv != SECSuccess) break;
|
|
break;
|
|
#endif /* NSS_DISABLE_ECC */
|
|
default:
|
|
rv = SECFailure;
|
|
}
|
|
|
|
loser:
|
|
|
|
if(rv != SECSuccess) {
|
|
PORT_FreeArena(poolp, PR_TRUE);
|
|
returnKey = NULL;
|
|
}
|
|
|
|
return returnKey;
|
|
}
|