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ncrypt.go
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ncrypt.go
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// Copyright (c) 2023-2024, El Mostafa IDRASSI.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package goncrypt
import (
"bytes"
"encoding/binary"
"fmt"
"path/filepath"
"syscall"
"unsafe"
"golang.org/x/sys/windows"
)
//////////////////////////////////////////////////////////////////////////////////////
// Misc.
//////////////////////////////////////////////////////////////////////////////////////
// utf16BytesToString transforms a []byte which contains a wide char string in LE
// into its []uint16 corresponding representation,
// then returns the UTF-8 encoding of the UTF-16 sequence,
// with a terminating NUL removed. If after converting the []byte into
// a []uint16, there is a NUL uint16, the conversion to string stops
// at that NUL uint16.
func utf16BytesToString(buf []byte) (string, error) {
if len(buf)%2 != 0 {
return "", fmt.Errorf("input is not a valid byte representation of a wide char string in LE")
}
b := make([]uint16, len(buf)/2)
// LPCSTR (Windows' representation of utf16) is always little endian.
if err := binary.Read(bytes.NewReader(buf), binary.LittleEndian, b); err != nil {
return "", err
}
return windows.UTF16ToString(b), nil
}
// utf16ToString transforms a []utf16 which contains a wide char string in LE
// into its UTF-8 encoding representation, with a terminating NUL removed.
// The conversion stops at the first encountered NUL uint16.
func utf16ToString(buf []uint16) (string, error) {
return windows.UTF16ToString(buf), nil
}
// utf16PtrToString transforms a *utf16 which contains a wide char string in LE
// into its UTF-8 encoding representation, with a terminating NUL removed.
// The conversion stops at the first encountered NUL uint16.
func utf16PtrToString(buf *uint16) string {
return windows.UTF16PtrToString(buf)
}
// stringToUtf16Ptr returns the UTF-16 encoding of the UTF-8 string
// str, with a terminating NUL added. If str contains a NUL byte at any
// location, it returns (nil, EINVAL).
func stringToUtf16(str string) ([]uint16, error) {
if str == "" {
return nil, nil
}
return windows.UTF16FromString(str)
}
// stringToUtf16Ptr returns the UTF-16 encoding of the UTF-8 string
// str, with a terminating NUL added. If str contains a NUL byte at any
// location, it returns (nil, EINVAL).
func stringToUtf16Ptr(str string) (*uint16, error) {
if str == "" {
return nil, nil
}
return windows.UTF16PtrFromString(str)
}
// bytesToUtf16Ptr returns the UTF-16 encoding of the UTF-8 string
// contained in buf as a byte array, with a terminating NUL added.
// If str contains a NUL byte at any location, it returns (nil, EINVAL).
func bytesToUtf16Ptr(buf []byte) (*uint16, error) {
str := string(buf)
return stringToUtf16Ptr(str)
}
// bytesToUtf16 returns the UTF-16 encoding of the UTF-8 string
// contained in buf as a byte array, with a terminating NUL added.
// If str contains a NUL byte at any location, it returns (nil, EINVAL).
func bytesToUtf16(buf []byte) ([]uint16, error) {
str := string(buf)
return stringToUtf16(str)
}
// stringToUtf16Bytes returns the UTF-16 encoding of the UTF-8 string
// str, as a byte array with a terminating NUL added. If str contains a NUL byte at any
// location, it returns (nil, EINVAL).
func stringToUtf16Bytes(str string) ([]byte, error) {
if str == "" {
return nil, nil
}
utf16Str, err := windows.UTF16FromString(str)
if err != nil {
return nil, err
}
bytesStr := make([]byte, len(utf16Str)*2)
j := 0
for _, utf16 := range utf16Str {
b := make([]byte, 2)
// LPCSTR (Windows' representation of utf16) is always little endian.
binary.LittleEndian.PutUint16(b, utf16)
bytesStr[j] = b[0]
bytesStr[j+1] = b[1]
j += 2
}
return bytesStr, nil
}
// stringToUtf16String returns the UTF-16 encoding of the UTF-8 string
// str, with a terminating NUL added. If str contains a NUL byte at any
// location, it returns (nil, EINVAL).
func stringToUtf16String(str string) ([]uint16, error) {
if str == "" {
return nil, nil
}
utf16Str, err := windows.UTF16FromString(str)
if err != nil {
return nil, err
}
return utf16Str, nil
}
func bytesToUint32(input []byte, isLittleEndian bool) (ret uint32, err error) {
if len(input) == 4 {
if isLittleEndian {
ret = binary.LittleEndian.Uint32(input)
} else {
ret = binary.BigEndian.Uint32(input)
}
} else {
err = fmt.Errorf("unexpected input length: expected %d, got %d", 4, len(input))
}
return
}
//////////////////////////////////////////////////////////////////////////////////////
// Some BCrypt header content.
// From C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\shared\bcrypt.h
//////////////////////////////////////////////////////////////////////////////////////
type HcryptProv uintptr
type HcryptKey uintptr
type HcryptHash uintptr
const (
// Properties of secret agreement algorithms
BcryptGlobalParameters string = "SecretAgreementParam"
BcryptPrivateey string = "PrivKeyVal"
// Property Strings for DH
BcryptDhParameters string = "DHParameters"
// Property Strings for DSA
BcryptDsaParameters string = "DSAParameters"
//Property Strings for ECC
BcryptEccParameters string = "ECCParameters"
BcryptEccCurveName string = "ECCCurveName"
BcryptEccCurveNameList string = "ECCCurveNameList"
)
//
// DeriveKey KDF Types
//
type BcryptKdfType string
const (
BcryptKdfHash BcryptKdfType = "HASH"
BcryptKdfHmac BcryptKdfType = "HMAC"
BcryptKdfTlsPrf BcryptKdfType = "TLS_PRF"
BcryptKdfSp80056aConcat BcryptKdfType = "SP800_56A_CONCAT"
BcryptKdfRawSecret BcryptKdfType = "TRUNCATE"
BcryptKdfHkdf BcryptKdfType = "HKDF"
)
//
// BCrypt structures
//
type BcryptBuffer struct { // BCryptBuffer
BufferLen uint32 // Length of buffer, in bytes
BufferType uint32 // Buffer type
Buffer *byte // Pointer to buffer
}
type BcryptBufferDesc struct { // BCryptBufferDesc
Version uint32 // Version number
BuffersLen uint32 // Number of buffers
Buffers *BcryptBuffer // Pointer to array of buffers
}
type BcryptVersion uint32
const (
BcryptBufferVersion BcryptVersion = 0
BcryptEccFullKeyBlobVersion1 BcryptVersion = 0x1
BcryptKeyDataBlobVersion1 BcryptVersion = 0x1
)
type BcryptKeyBlobType string
const (
BcryptPublicKeyBlob BcryptKeyBlobType = "PUBLICBLOB"
BcryptPrivateKeyBlob BcryptKeyBlobType = "PRIVATEBLOB"
// The BCRYPT_RSAPUBLIC_BLOB and BCRYPT_RSAPRIVATE_BLOB blob types are used
// to transport plaintext RSA keys. These blob types will be supported by
// all RSA primitive providers.
// The BCRYPT_RSAPRIVATE_BLOB includes the following values:
// Public Exponent
// Modulus
// Prime1
// Prime2
BcryptRsaPublicBlob BcryptKeyBlobType = "RSAPUBLICBLOB"
BcryptRsaPrivateBlob BcryptKeyBlobType = "RSAPRIVATEBLOB"
// The BCRYPT_RSAFULLPRIVATE_BLOB blob type is used to transport
// plaintext private RSA keys. It includes the following values:
// Public Exponent
// Modulus
// Prime1
// Prime2
// Private Exponent mod (Prime1 - 1)
// Private Exponent mod (Prime2 - 1)
// Inverse of Prime2 mod Prime1
// PrivateExponent
BcryptRsaFullPrivateBlob BcryptKeyBlobType = "RSAFULLPRIVATEBLOB"
BcryptLegacyRsaPublicBlob BcryptKeyBlobType = "CAPIPUBLICBLOB"
BcryptLegacyRsaPrivateBlob BcryptKeyBlobType = "CAPIPRIVATEBLOB"
// The BCRYPT_ECCPUBLIC_BLOB and BCRYPT_ECCPRIVATE_BLOB blob types are used
// to transport plaintext ECC keys. These blob types will be supported by
// all ECC primitive providers.
BcryptEccPublicBlob BcryptKeyBlobType = "ECCPUBLICBLOB"
BcryptEccPrivateBlob BcryptKeyBlobType = "ECCPRIVATEBLOB"
BcryptEccFullPublicBlob BcryptKeyBlobType = "ECCFULLPUBLICBLOB"
BcryptEccFullPrivateBlob BcryptKeyBlobType = "ECCFULLPRIVATEBLOB"
BcryptSslEccPublicBlob BcryptKeyBlobType = "SSLECCPUBLICBLOB"
// The BCRYPT_DH_PUBLIC_BLOB and BCRYPT_DH_PRIVATE_BLOB blob types are used
// to transport plaintext DH keys. These blob types will be supported by
// all DH primitive providers.
BcryptDhPublicBlob BcryptKeyBlobType = "DHPUBLICBLOB"
BcryptDhPrivateBlob BcryptKeyBlobType = "DHPRIVATEBLOB"
BcryptLegacyDhPublicBlob BcryptKeyBlobType = "CAPIDHPUBLICBLOB"
BcryptLegacyDhPrivateBlob BcryptKeyBlobType = "CAPIDHPRIVATEBLOB"
// The BCRYPT_DSA_PUBLIC_BLOB and BCRYPT_DSA_PRIVATE_BLOB blob types are used
// to transport plaintext DSA keys. These blob types will be supported by
// all DSA primitive providers.
BcryptDsaPublicBlob BcryptKeyBlobType = "DSAPUBLICBLOB"
BcryptDsaPrivateBlob BcryptKeyBlobType = "DSAPRIVATEBLOB"
BcryptLegacyDsaPublicBlob BcryptKeyBlobType = "CAPIDSAPUBLICBLOB"
BcryptLegacyDsaPrivateBlob BcryptKeyBlobType = "CAPIDSAPRIVATEBLOB"
BcryptLegacyDsaV2PublicBlob BcryptKeyBlobType = "V2CAPIDSAPUBLICBLOB"
BcryptLegacyDsaV2PrivateBlob BcryptKeyBlobType = "V2CAPIDSAPRIVATEBLOB"
)
type BcryptMagic uint32
const (
BcryptRsaPublicMagic BcryptMagic = 0x31415352 // RSA1
BcryptRsaPrivateMagic BcryptMagic = 0x32415352 // RSA2
BcryptRsaFullPrivateMagic BcryptMagic = 0x33415352 // RSA3
BcryptEcdhPublicP256Magic BcryptMagic = 0x314B4345 // ECK1
BcryptEcdhPrivateP256Magic BcryptMagic = 0x324B4345 // ECK2
BcryptEcdhPublicP384Magic BcryptMagic = 0x334B4345 // ECK3
BcryptEcdhPrivateP384Magic BcryptMagic = 0x344B4345 // ECK4
BcryptEcdhPublicP521Magic BcryptMagic = 0x354B4345 // ECK5
BcryptEcdhPrivateP521Magic BcryptMagic = 0x364B4345 // ECK6
BcryptEcdhPublicGenericMagic BcryptMagic = 0x504B4345 // ECKP
BcryptEcdhPrivateGenericMagic BcryptMagic = 0x564B4345 // ECKV
BcryptEcdsaPublicP256Magic BcryptMagic = 0x31534345 // ECS1
BcryptEcdsaPrivateP256Magic BcryptMagic = 0x32534345 // ECS2
BcryptEcdsaPublicP384Magic BcryptMagic = 0x33534345 // ECS3
BcryptEcdsaPrivateP384Magic BcryptMagic = 0x34534345 // ECS4
BcryptEcdsaPublicP521Magic BcryptMagic = 0x35534345 // ECS5
BcryptEcdsaPrivateP521Magic BcryptMagic = 0x36534345 // ECS6
BcryptEcdsaPublicGenericMagic BcryptMagic = 0x50444345 // ECDP
BcryptEcdsaPrivateGenericMagic BcryptMagic = 0x56444345 // ECDV
BcryptDhPublicMagic BcryptMagic = 0x42504844 // DHPB
BcryptDhPrivateMagic BcryptMagic = 0x56504844 // DHPV
BcryptDsaPublicMagic BcryptMagic = 0x42505344 // DSPB
BcryptDsaPrivateMagic BcryptMagic = 0x56505344 // DSPV
BcryptDsaPublicMagicV2 BcryptMagic = 0x32425044 // DPB2
BcryptDsaPrivateMagicV2 BcryptMagic = 0x32565044 // DPV2
BcryptDhParametersMagic BcryptMagic = 0x4d504844 // DHPM
BcryptKeyDataBlobMagic BcryptMagic = 0x4d42444b // Key Data Blob Magic (KDBM)
BcryptDsaParametersMagic BcryptMagic = 0x4d505344 // DSPM
BcryptDsaParametersMagicV2 BcryptMagic = 0x324d5044 // DPM2
BcryptEccParametersMagic BcryptMagic = 0x50434345 // ECCP
)
// enum ECC_CURVE_TYPE_ENUM
type BcryptEccCurveType int32
const (
BcryptEccPrimeShortWeierstrassCurve BcryptEccCurveType = 0x1
BcryptEccPrimeTwistedEdwardsCurve BcryptEccCurveType = 0x2
BcryptEccPrimeMontgomeryCurve BcryptEccCurveType = 0x3
)
// enum ECC_CURVE_ALG_ID_ENUM
type BcryptEccCurveAlgId int32
const (
BcryptNoCurveGenerationAlgId BcryptEccCurveAlgId = 0x0
)
// enum HASHALGORITHM_ENUM
type BcryptHashAlgorithm int32
const (
DsaHashAlgorithmSha1 BcryptHashAlgorithm = iota
DsaHashAlgorithmSha256
DsaHashAlgorithmSha512
)
// enum DSAFIPSVERSION_ENUM
type BcryptDsaFipsVersion int32
const (
DsaFips1862 BcryptDsaFipsVersion = iota
DsaFips1863
)
//
// ECC Curve Names
//
type BcryptEccCurve string
const (
BcryptEccCurveBrainpoolP160R1 BcryptEccCurve = "brainpoolP160r1"
BcryptEccCurveBrainpoolP160T1 BcryptEccCurve = "brainpoolP160t1"
BcryptEccCurveBrainpoolP192R1 BcryptEccCurve = "brainpoolP192r1"
BcryptEccCurveBrainpoolP192T1 BcryptEccCurve = "brainpoolP192t1"
BcryptEccCurveBrainpoolP224R1 BcryptEccCurve = "brainpoolP224r1"
BcryptEccCurveBrainpoolP224T1 BcryptEccCurve = "brainpoolP224t1"
BcryptEccCurveBrainpoolP256R1 BcryptEccCurve = "brainpoolP256r1"
BcryptEccCurveBrainpoolP256T1 BcryptEccCurve = "brainpoolP256t1"
BcryptEccCurveBrainpoolP320R1 BcryptEccCurve = "brainpoolP320r1"
BcryptEccCurveBrainpoolP320T1 BcryptEccCurve = "brainpoolP320t1"
BcryptEccCurveBrainpoolP384R1 BcryptEccCurve = "brainpoolP384r1"
BcryptEccCurveBrainpoolP384T1 BcryptEccCurve = "brainpoolP384t1"
BcryptEccCurveBrainpoolP512R1 BcryptEccCurve = "brainpoolP512r1"
BcryptEccCurveBrainpoolP512T1 BcryptEccCurve = "brainpoolP512t1"
BcryptEccCurve25519 BcryptEccCurve = "curve25519"
BcryptEccCurveEc192Wapi BcryptEccCurve = "ec192wapi"
BcryptEccCurveNistP192 BcryptEccCurve = "nistP192"
BcryptEccCurveNistP224 BcryptEccCurve = "nistP224"
BcryptEccCurveNistP256 BcryptEccCurve = "nistP256"
BcryptEccCurveNistP384 BcryptEccCurve = "nistP384"
BcryptEccCurveNistP521 BcryptEccCurve = "nistP521"
BcryptEccCurveNumsp256T1 BcryptEccCurve = "numsP256t1"
BcryptEccCurveNumsp384T1 BcryptEccCurve = "numsP384t1"
BcryptEccCurveNumsp512T1 BcryptEccCurve = "numsP512t1"
BcryptEccCurveSecp160K1 BcryptEccCurve = "secP160k1"
BcryptEccCurveSecp160R1 BcryptEccCurve = "secP160r1"
BcryptEccCurveSecp160R2 BcryptEccCurve = "secP160r2"
BcryptEccCurveSecp192K1 BcryptEccCurve = "secP192k1"
BcryptEccCurveSecp192R1 BcryptEccCurve = "secP192r1"
BcryptEccCurveSecp224K1 BcryptEccCurve = "secP224r1"
)
//
// Structures used to represent key blobs
//
type BcryptKeyBlob struct {
Magic BcryptMagic
}
type BcryptRsaKeyBlob struct {
Magic BcryptMagic
BitLength uint32
PublicExpLen uint32
ModulusLen uint32
Prime1Len uint32
Prime2Len uint32
}
type BcryptEccKeyBlob struct {
Magic BcryptMagic
KeyLen uint32
}
type BcryptSslEccKeyBlob struct {
CurveType BcryptEccCurveType
KeyLen uint32
}
// The full version contains the curve parameters as well
// as the public and potentially private exponent.
type BcryptEccFullKeyBlob struct {
Magic BcryptMagic
Version uint32 // Version of the structure
CurveType BcryptEccCurveType // Supported curve types.
CurveGenerationAlgId BcryptEccCurveAlgId // For X.592 verification purposes, if we include Seed we will need to include the algorithm ID.
FieldLengthLen uint32 // Byte length of the fields P, A, B, X, Y.
SubgroupOrderLen uint32 // Byte length of the subgroup.
CofactorLen uint32 // Byte length of cofactor of G in E.
SeedLen uint32 // Byte length of the seed used to generate the curve.
//P[cbFieldLength] Prime specifying the base field.
//A[cbFieldLength] Coefficient A of the equation y^2 = x^3 + A*x + B mod p
//B[cbFieldLength] Coefficient B of the equation y^2 = x^3 + A*x + B mod p
//Gx[cbFieldLength] X-coordinate of the base point.
//Gy[cbFieldLength] Y-coordinate of the base point.
//n[cbSubgroupOrder] Order of the group generated by G = (x,y)
//h[cbCofactor] Cofactor of G in E.
//S[cbSeed] Seed of the curve.
//Qx[cbFieldLength] X-coordinate of the public point.
//Qy[cbFieldLength] Y-coordinate of the public point.
//d[cbSubgroupOrder] Private key. Not always present.
}
type BcryptDhKeyBlob struct {
Magic BcryptMagic
KeyLen uint32
}
type BcryptDhParameterHeader struct {
Length uint32
Magic BcryptMagic
KeyLen uint32
}
type BcryptDsaKeyBlob struct {
Magic BcryptMagic
KeyLen uint32
Count [4]byte
Seed [20]byte
Q [20]byte
}
type BcryptDsaKeyBlobV2 struct {
Magic BcryptMagic
KeyLen uint32
HashAlgorithm BcryptHashAlgorithm
StandardVersion BcryptDsaFipsVersion
SeedLen uint32
GroupSize uint32
Count [4]byte
}
type BcryptKeyDataBlobHeader struct {
Magic BcryptMagic
Version uint32
KeyDataLen uint32
}
type BcryptDsaParameterHeader struct {
Length uint32
Magic BcryptMagic
KeyLen uint32
Count [4]byte
Seed [20]byte
Q [20]byte
}
type BcryptDsaParameterHeaderV2 struct {
Length uint32
Magic BcryptMagic
KeyLen uint32
HashAlgorithm BcryptHashAlgorithm
StandardVersion BcryptDsaFipsVersion
SeedLen uint32
GroupSize uint32
Count [4]byte
}
type BcryptEccCurveNames struct {
EccCurveNamesLen uint32
EccCurveNames **uint16
}
type BcryptPkcs1PaddingInfo struct {
AlgId *uint16
}
type BcryptPssPaddingInfo struct {
AlgId *uint16
SaltLen uint32
}
type BcryptOaepPaddingInfo struct {
AlgId *uint16
Label *byte
LabelLen uint32
}
//////////////////////////////////////////////////////////////////////////////////////
// NCrypt header content.
// From C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\um\ncrypt.h
//////////////////////////////////////////////////////////////////////////////////////
const (
//
// Maximum length of Key name, in characters
//
NcryptMaxKeyNameLength = 512
//
// Maximum length of Algorithm name, in characters
//
NcryptMaxAlgIdLength = 512
//
// Key name for sealing
//
TpmRsaSrkSealKey = "MICROSOFT_PCP_KSP_RSA_SEAL_KEY_3BD1C4BF-004E-4E2F-8A4D-0BF633DCB074"
)
//
// Microsoft built-in providers
//
const (
MsKeyStorageProvider string = "Microsoft Software Key Storage Provider"
MsSmartCardKeyStorageProvider string = "Microsoft Smart Card Key Storage Provider"
MsPlatformKeyStorageProvider string = "Microsoft Platform Crypto Provider"
MsNgcKeyStorageProvider string = "Microsoft Passport Key Storage Provider"
)
//
// Common algorithm identifiers
//
type NcryptAlgorithm string
const (
NcryptRsaAlgorithm NcryptAlgorithm = "RSA"
NcryptRsaSignAlgorithm NcryptAlgorithm = "RSA_SIGN"
NcryptDhAlgorithm NcryptAlgorithm = "DH"
NcryptDsaAlgorithm NcryptAlgorithm = "DSA"
NcryptMd2Algorithm NcryptAlgorithm = "MD2"
NcryptMd4Algorithm NcryptAlgorithm = "MD4"
NcryptMd5Algorithm NcryptAlgorithm = "MD5"
NcryptSha1Algorithm NcryptAlgorithm = "SHA1"
NcryptSha256Algorithm NcryptAlgorithm = "SHA256"
NcryptSha384Algorithm NcryptAlgorithm = "SHA384"
NcryptSha512Algorithm NcryptAlgorithm = "SHA512"
NcryptEcdsaP256Algorithm NcryptAlgorithm = "ECDSA_P256"
NcryptEcdsaP384Algorithm NcryptAlgorithm = "ECDSA_P384"
NcryptEcdsaP521Algorithm NcryptAlgorithm = "ECDSA_P521"
NcryptEcdhP256Algorithm NcryptAlgorithm = "ECDH_P256"
NcryptEcdhP384Algorithm NcryptAlgorithm = "ECDH_P384"
NcryptEcdhP521Algorithm NcryptAlgorithm = "ECDH_P521"
NcryptAesAlgorithm NcryptAlgorithm = "AES"
NcryptRc2Algorithm NcryptAlgorithm = "RC2"
Ncrypt3desAlgorithm NcryptAlgorithm = "3DES"
NcryptDesAlgorithm NcryptAlgorithm = "DES"
NcryptDesxAlgorithm NcryptAlgorithm = "DESX"
Ncrypt3des112Algorithm NcryptAlgorithm = "3DES_112"
NcryptSp800108CtrHmacAlgorithm NcryptAlgorithm = "SP800_108_CTR_HMAC"
NcryptSp80056aConcatAlgorithm NcryptAlgorithm = "SP800_56A_CONCAT"
NcryptPbkdf2Algorithm NcryptAlgorithm = "PBKDF2"
NcryptCapiKdfAlgorithm NcryptAlgorithm = "CAPI_KDF"
NcryptEcdsaAlgorithm NcryptAlgorithm = "ECDSA"
NcryptKeyStorageAlgorithm NcryptAlgorithm = "KEY_STORAGE"
//
// This algorithm is not supported by any BCrypt provider. This identifier is for creating
// persistent stored HMAC keys in the TPM KSP.
//
NcryptHmacSha256Algorithm NcryptAlgorithm = "HMAC-SHA256"
)
//
// Interfaces
//
type NcryptInterface uint32
const (
NcryptCipherInterface NcryptInterface = 0x00000001
NcryptHashInterface NcryptInterface = 0x00000002
NcryptAsymmetricEncryptionInterface NcryptInterface = 0x00000003
NcryptSecretAgreementInterface NcryptInterface = 0x00000004
NcryptSignatureInterface NcryptInterface = 0x00000005
NcryptKeyDerivationInterface NcryptInterface = 0x00000007
NcryptKeyStorageInterface NcryptInterface = 0x00010001
NcryptSchannelInterface NcryptInterface = 0x00010002
NcryptSchannelSignatureInterface NcryptInterface = 0x00010003
NcryptKeyProtectionInterface NcryptInterface = 0x00010004
)
func (i *NcryptInterface) String() string {
switch *i {
case NcryptCipherInterface:
return "Cipher"
case NcryptHashInterface:
return "Hash"
case NcryptAsymmetricEncryptionInterface:
return "AsymmetricEncryption"
case NcryptSecretAgreementInterface:
return "SecretAgreement"
case NcryptSignatureInterface:
return "Signature"
case NcryptKeyDerivationInterface:
return "KeyDerivation"
case NcryptKeyStorageInterface:
return "KeyStorage"
case NcryptSchannelInterface:
return "Schannel"
case NcryptSchannelSignatureInterface:
return "SchannelSignature"
case NcryptKeyProtectionInterface:
return "KeyProtection"
default:
return "N/A"
}
}
//
// Algorithm groups
//
type NcryptAlgorithmGroup string
const (
NcryptRsaAlgorithmGroup NcryptAlgorithmGroup = "RSA"
NcryptDhAlgorithmGroup NcryptAlgorithmGroup = "DH"
NcryptDsaAlgorithmGroup NcryptAlgorithmGroup = "DSA"
NcryptEcdsaAlgorithmGroup NcryptAlgorithmGroup = "ECDSA"
NcryptEcdhAlgorithmGroup NcryptAlgorithmGroup = "ECDH"
NcryptAesAlgorithmGroup NcryptAlgorithmGroup = "AES"
NcryptRc2AlgorithmGroup NcryptAlgorithmGroup = "RC2"
NcryptDesAlgorithmGroup NcryptAlgorithmGroup = "DES"
NcryptKeyDerivationGroup NcryptAlgorithmGroup = "KEY_DERIVATION"
)
type NcryptVersion uint32
const (
NcryptBufferVersion NcryptVersion = 0
NcryptIsolatedKeyAttestedAttributesV0 NcryptVersion = 0
NcryptIsolatedKeyAttestedAttributesCurrentVersion NcryptVersion = NcryptIsolatedKeyAttestedAttributesV0
NcryptVsmKeyAttestationStatementV0 NcryptVersion = 0
NcryptVsmKeyAttestationStatementCurrentVersion NcryptVersion = NcryptVsmKeyAttestationStatementV0
NcryptVsmKeyAttestationClaimRestrictionsV0 NcryptVersion = 0
NcryptVsmKeyAttestationClaimRestrictionsCurrentVersion NcryptVersion = NcryptVsmKeyAttestationClaimRestrictionsV0
NcryptExportedIsolatedKeyHeaderV0 NcryptVersion = 0
NcryptExportedIsolatedKeyHeaderCurrentVersion NcryptVersion = NcryptExportedIsolatedKeyHeaderV0
NcryptTpmPlatformAttestationStatementV0 NcryptVersion = 0
NcryptTpmPlatformAttestationStatementCurrentVersion NcryptVersion = NcryptTpmPlatformAttestationStatementV0
NcryptKeyAccessPolicyVersion NcryptVersion = 1
)
type NcryptMagic uint32
const (
NcryptRsaPublicMagic NcryptMagic = 0x31415352 // RSA1
NcryptRsaPrivateMagic NcryptMagic = 0x32415352 // RSA2
NcryptRsaFullPrivateMagic NcryptMagic = 0x33415352 // RSA3
NcryptEcdhPublicP256Magic NcryptMagic = 0x314B4345 // ECK1
NcryptEcdhPrivateP256Magic NcryptMagic = 0x324B4345 // ECK2
NcryptEcdhPublicP384Magic NcryptMagic = 0x334B4345 // ECK3
NcryptEcdhPrivateP384Magic NcryptMagic = 0x344B4345 // ECK4
NcryptEcdhPublicP521Magic NcryptMagic = 0x354B4345 // ECK5
NcryptEcdhPrivateP521Magic NcryptMagic = 0x364B4345 // ECK6
NcryptEcdhPublicGenericMagic NcryptMagic = 0x504B4345 // ECKP
NcryptEcdhPrivateGenericMagic NcryptMagic = 0x564B4345 // ECKV
NcryptEcdsaPublicP256Magic NcryptMagic = 0x31534345 // ECS1
NcryptEcdsaPrivateP256Magic NcryptMagic = 0x32534345 // ECS2
NcryptEcdsaPublicP384Magic NcryptMagic = 0x33534345 // ECS3
NcryptEcdsaPrivateP384Magic NcryptMagic = 0x34534345 // ECS4
NcryptEcdsaPublicP521Magic NcryptMagic = 0x35534345 // ECS5
NcryptEcdsaPrivateP521Magic NcryptMagic = 0x36534345 // ECS6
NcryptEcdsaPublicGenericMagic NcryptMagic = 0x50444345 // ECDP
NcryptEcdsaPrivateGenericMagic NcryptMagic = 0x56444345 // ECDV
NcryptDhPublicMagic NcryptMagic = 0x42504844 // DHPB
NcryptDhPrivateMagic NcryptMagic = 0x56504844 // DHPV
NcryptDsaPublicMagic NcryptMagic = 0x42505344 // DSPB
NcryptDsaPrivateMagic NcryptMagic = 0x56505344 // DSPV
NcryptDsaPublicMagicV2 NcryptMagic = 0x32425044 // DPB2
NcryptDsaPrivateMagicV2 NcryptMagic = 0x32565044 // DPV2
NcryptDhParametersMagic NcryptMagic = 0x4d504844 // DHPM
NcryptKeyDataBlobMagic NcryptMagic = 0x4d42444b // Key Data Blob Magic (KDBM)
NcryptDsaParametersMagic NcryptMagic = 0x4d505344 // DSPM
NcryptDsaParametersMagicV2 NcryptMagic = 0x324d5044 // DPM2
NcryptEccParametersMagic NcryptMagic = 0x50434345 // ECCP
NcryptPlatformAttestMagic NcryptMagic = 0x44504150 // 'PAPD'
NcryptKeyAttestMagic NcryptMagic = 0x4450414b // 'KAPD'
NcryptCipherKeyBlobMagic NcryptMagic = 0x52485043 // 'CPHR'
NcryptKdfKeyBlobMagic NcryptMagic = 0x3146444B // 'KDF1'
NcryptProtectedKeyBlobMagic NcryptMagic = 0x4B545250 // 'PRTK'
NcryptTpmLoadableKeyBlobMagic NcryptMagic = 0x4D54504B // 'MTPK'
NcryptVsmIsolatedKeyMagic NcryptMagic = 0x494d5356 // 'VSMI'
NcryptPcpTpmWebAuthnAttestationStatementMagic NcryptMagic = 0x4157414b // 'KAWA'
NcryptTpmPlatformAttestationStatementMagic NcryptMagic = 0x414c5054 // 'TPLA'
)
type NcryptKeyBlobType string
const (
NcryptPublicKeyBlob NcryptKeyBlobType = "PUBLICBLOB"
NcryptPrivateKeyBlob NcryptKeyBlobType = "PRIVATEBLOB"
// The BCRYPT_RSAPUBLIC_BLOB and BCRYPT_RSAPRIVATE_BLOB blob types are used
// to transport plaintext RSA keys. These blob types will be supported by
// all RSA primitive providers.
// The BCRYPT_RSAPRIVATE_BLOB includes the following values:
// Public Exponent
// Modulus
// Prime1
// Prime2
NcryptRsaPublicBlob NcryptKeyBlobType = "RSAPUBLICBLOB"
NcryptRsaPrivateBlob NcryptKeyBlobType = "RSAPRIVATEBLOB"
// The BCRYPT_RSAFULLPRIVATE_BLOB blob type is used to transport
// plaintext private RSA keys. It includes the following values:
// Public Exponent
// Modulus
// Prime1
// Prime2
// Private Exponent mod (Prime1 - 1)
// Private Exponent mod (Prime2 - 1)
// Inverse of Prime2 mod Prime1
// PrivateExponent
NcryptRsaFullPrivateBlob NcryptKeyBlobType = "RSAFULLPRIVATEBLOB"
NcryptLegacyRsaPublicBlob NcryptKeyBlobType = "CAPIPUBLICBLOB"
NcryptLegacyRsaPrivateBlob NcryptKeyBlobType = "CAPIPRIVATEBLOB"
// The BCRYPT_ECCPUBLIC_BLOB and BCRYPT_ECCPRIVATE_BLOB blob types are used
// to transport plaintext ECC keys. These blob types will be supported by
// all ECC primitive providers.
NcryptEccPublicBlob NcryptKeyBlobType = "ECCPUBLICBLOB"
NcryptEccPrivateBlob NcryptKeyBlobType = "ECCPRIVATEBLOB"
NcryptEccFullPublicBlob NcryptKeyBlobType = "ECCFULLPUBLICBLOB"
NcryptEccFullPrivateBlob NcryptKeyBlobType = "ECCFULLPRIVATEBLOB"
NcryptSslEccPublicBlob NcryptKeyBlobType = "SSLECCPUBLICBLOB"
// The BCRYPT_DH_PUBLIC_BLOB and BCRYPT_DH_PRIVATE_BLOB blob types are used
// to transport plaintext DH keys. These blob types will be supported by
// all DH primitive providers.
NcryptDhPublicBlob NcryptKeyBlobType = "DHPUBLICBLOB"
NcryptDhPrivateBlob NcryptKeyBlobType = "DHPRIVATEBLOB"
NcryptLegacyDhPublicBlob NcryptKeyBlobType = "CAPIDHPUBLICBLOB"
NcryptLegacyDhPrivateBlob NcryptKeyBlobType = "CAPIDHPRIVATEBLOB"
// The BCRYPT_DSA_PUBLIC_BLOB and BCRYPT_DSA_PRIVATE_BLOB blob types are used
// to transport plaintext DSA keys. These blob types will be supported by
// all DSA primitive providers.
NcryptDsaPublicBlob NcryptKeyBlobType = "DSAPUBLICBLOB"
NcryptDsaPrivateBlob NcryptKeyBlobType = "DSAPRIVATEBLOB"
NcryptLegacyDsaPublicBlob NcryptKeyBlobType = "CAPIDSAPUBLICBLOB"
NcryptLegacyDsaPrivateBlob NcryptKeyBlobType = "CAPIDSAPRIVATEBLOB"
NcryptLegacyDsaV2PublicBlob NcryptKeyBlobType = "V2CAPIDSAPUBLICBLOB"
NcryptLegacyDsaV2PrivateBlob NcryptKeyBlobType = "V2CAPIDSAPRIVATEBLOB"
NcryptCipherKeyBlob NcryptKeyBlobType = "CipherKeyBlob"
NcryptKdfKeyBlob NcryptKeyBlobType = "KDFKeyBlob"
NcryptProtectedKeyBlob NcryptKeyBlobType = "ProtectedKeyBlob"
NcryptTpmLoadableKeyBlob NcryptKeyBlobType = "PcpTpmProtectedKeyBlob"
NcryptPkcs7EnvelopeBlob NcryptKeyBlobType = "PKCS7_ENVELOPE"
NcryptPkcs8PrivateKeyBlob NcryptKeyBlobType = "PKCS8_PRIVATEKEY"
NcryptOpaquetransportBlob NcryptKeyBlobType = "OpaqueTransport"
NcryptIsolatedKeyEnvelopeBlob NcryptKeyBlobType = "ISOLATED_KEY_ENVELOPE"
)
//
// NCrypt generic memory descriptors
//
type NcryptBufferDescriptor uint32
const (
NcryptBufferEmpty NcryptBufferDescriptor = 0
NcryptBufferData NcryptBufferDescriptor = 1
NcryptBufferProtectionDescriptorString NcryptBufferDescriptor = 3 // The buffer contains a null-terminated Unicode string that contains the Protection Descriptor.
NcryptBufferProtectionFlags NcryptBufferDescriptor = 4 // DWORD flags to be passed to NCryptCreateProtectionDescriptor function.
NcryptBufferSslClientRandom NcryptBufferDescriptor = 20
NcryptBufferSslServerRandom NcryptBufferDescriptor = 21
NcryptBufferSslHighestVersion NcryptBufferDescriptor = 22
NcryptBufferSslClearKey NcryptBufferDescriptor = 23
NcryptBufferSslKeyArgData NcryptBufferDescriptor = 24
NcryptBufferSslSessionHash NcryptBufferDescriptor = 25
NcryptBufferPkcsOid NcryptBufferDescriptor = 40
NcryptBufferPkcsAlgOid NcryptBufferDescriptor = 41
NcryptBufferPkcsAlgParam NcryptBufferDescriptor = 42
NcryptBufferPkcsAlgId NcryptBufferDescriptor = 43
NcryptBufferPkcsAttrs NcryptBufferDescriptor = 44
NcryptBufferPkcsKeyName NcryptBufferDescriptor = 45
NcryptBufferPkcsSecret NcryptBufferDescriptor = 46
NcryptBufferCertBlob NcryptBufferDescriptor = 47
// For threshold key attestation
NcryptBufferClaimIdbindingNonce NcryptBufferDescriptor = 48
NcryptBufferClaimKeyattestationNonce NcryptBufferDescriptor = 49
NcryptBufferKeyPropertyFlags NcryptBufferDescriptor = 50
NcryptBufferAttestationstatementBlob NcryptBufferDescriptor = 51
NcryptBufferAttestationClaimType NcryptBufferDescriptor = 52
NcryptBufferAttestationClaimChallengeRequired NcryptBufferDescriptor = 53
NcryptBufferVsmKeyAttestationClaimRestrictions NcryptBufferDescriptor = 54
// For generic ecc
NcryptBufferEccCurveName NcryptBufferDescriptor = 60
NcryptBufferEccParameters NcryptBufferDescriptor = 61
// For TPM seal
NcryptBufferTpmSealPassword NcryptBufferDescriptor = 70
NcryptBufferTpmSealPolicyinfo NcryptBufferDescriptor = 71
NcryptBufferTpmSealTicket NcryptBufferDescriptor = 72
NcryptBufferTpmSealNoDaProtection NcryptBufferDescriptor = 73
// For TPM platform attestation statements
NcryptBufferTpmPlatformClaimPcrMask NcryptBufferDescriptor = 80
NcryptBufferTpmPlatformClaimNonce NcryptBufferDescriptor = 81
NcryptBufferTpmPlatformClaimStaticCreate NcryptBufferDescriptor = 82
)
//
// Flags used with NcryptCipherPaddingInfo
//
type NcryptCipherPaddingInfoFlag uint32
const (
NcryptCipherNoPaddingFlag NcryptCipherPaddingInfoFlag = 0x00000000
NcryptCipherBlockPaddingFlag NcryptCipherPaddingInfoFlag = 0x00000001
NcryptCipherOtherPaddingFlag NcryptCipherPaddingInfoFlag = 0x00000002
)
func (f *NcryptCipherPaddingInfoFlag) String() string {
switch *f {
case NcryptCipherNoPaddingFlag:
return "CipherNoPadding"
case NcryptCipherBlockPaddingFlag:
return "CipherBlockPadding"
case NcryptCipherOtherPaddingFlag:
return "CipherOtherPadding"
default:
return "N/A"
}
}
//
// Key attestation claim types
//
type NcryptClaimType uint32
const (
NcryptClaimAuthorityOnly NcryptClaimType = 0x00000001
NcryptClaimSubjectOnly NcryptClaimType = 0x00000002
NcryptClaimWebAuthSubjectOnly NcryptClaimType = 0x00000102
NcryptClaimAuthorityAndSubject NcryptClaimType = 0x00000003
NcryptClaimVsmKeyAttestationStatement NcryptClaimType = 0x00000004
NcryptClaimUnknown NcryptClaimType = 0x00001000
NcryptClaimPlatform NcryptClaimType = 0x00010000
)
func (t *NcryptClaimType) String() string {
output := ""
if *t&NcryptClaimAuthorityOnly == NcryptClaimAuthorityOnly {
output += "ClaimAuthorityOnly;"
}
if *t&NcryptClaimSubjectOnly == NcryptClaimSubjectOnly {
output += "ClaimSubjectOnly;"
}
if *t&NcryptClaimWebAuthSubjectOnly == NcryptClaimWebAuthSubjectOnly {
output += "ClaimWebAuthSubjectOnly;"
}
if *t&NcryptClaimAuthorityAndSubject == NcryptClaimAuthorityAndSubject {
output += "ClaimAuthorityAndSubject;"
}
if *t&NcryptClaimVsmKeyAttestationStatement == NcryptClaimVsmKeyAttestationStatement {
output += "ClaimVsmKeyAttestationStatement;"
}
if *t&NcryptClaimUnknown == NcryptClaimUnknown {
output += "ClaimUnknown;"
}
if *t&NcryptClaimPlatform == NcryptClaimPlatform {
output += "ClaimPlatform;"
}
return output
}
//
// NCrypt API Flags
//
type NcryptFlag uint32
const (
NcryptNoPaddingFlag NcryptFlag = 0x00000001 // NCryptEncrypt/Decrypt
NcryptPadPkcs1Flag NcryptFlag = 0x00000002 // NCryptEncrypt/Decrypt NCryptSignHash/VerifySignature
NcryptPadOaepFlag NcryptFlag = 0x00000004 // BCryptEncrypt/Decrypt
NcryptPadPssFlag NcryptFlag = 0x00000008 // BCryptSignHash/VerifySignature
NcryptPadCipherFlag NcryptFlag = 0x00000010 // NCryptEncrypt/Decrypt
NcryptAttestationFlag NcryptFlag = 0x00000020 // NCryptDecrypt for key attestation
NcryptSealingFlag NcryptFlag = 0x00000100 // NCryptEncrypt/Decrypt for sealing
NcryptRegisterNotifyFlag NcryptFlag = 0x00000001 // NCryptNotifyChangeKey
NcryptUnregisterNotifyFlag NcryptFlag = 0x00000002 // NCryptNotifyChangeKey
NcryptNoKeyValidation NcryptFlag = 0x00000008
NcryptMachineKeyFlag NcryptFlag = 0x00000020 // same as CAPI CRYPT_MACHINE_KEYSET
NcryptSilentFlag NcryptFlag = 0x00000040 // same as CAPI CRYPT_SILENT
NcryptOverwriteKeyFlag NcryptFlag = 0x00000080
NcryptWriteKeyToLegacyStoreFlag NcryptFlag = 0x00000200
NcryptDoNotFinalizeFlag NcryptFlag = 0x00000400
NcryptExportLegacyFlag NcryptFlag = 0x00000800
NcryptIgnoreDeviceStateFlag NcryptFlag = 0x00001000 // NCryptOpenStorageProvider
NcryptTreatNistAsGenericEccFlag NcryptFlag = 0x00002000
NcryptNoCachedPassword NcryptFlag = 0x00004000
NcryptProtectToLocalSystem NcryptFlag = 0x00008000
NcryptPersistOnlyFlag NcryptFlag = 0x40000000
NcryptPersistFlag NcryptFlag = 0x80000000
NcryptPreferVirtualIsolationFlag NcryptFlag = 0x00010000 // NCryptCreatePersistedKey NCryptImportKey
NcryptUseVirtualIsolationFlag NcryptFlag = 0x00020000 // NCryptCreatePersistedKey NCryptImportKey
NcryptUsePerBootKeyFlag NcryptFlag = 0x00040000 // NCryptCreatePersistedKey NCryptImportKey
// TPM NCryptSignHash Flag
NcryptTpmPadPssIgnoreSalt NcryptFlag = 0x00000020 // NCryptSignHash
)
//
// AlgOperations flags for use with NCryptEnumAlgorithms()
//
type NcryptAlgOperation uint32
const (
NcryptCipherOperation NcryptAlgOperation = 0x00000001
NcryptHashOperation NcryptAlgOperation = 0x00000002
NcryptAsymmetricEncryptionOperation NcryptAlgOperation = 0x00000004
NcryptSecretAgreementOperation NcryptAlgOperation = 0x00000008
NcryptSignatureOperation NcryptAlgOperation = 0x00000010
NcryptRngOperation NcryptAlgOperation = 0x00000020
NcryptKeyDerivationOperation NcryptAlgOperation = 0x00000040
)
func (o *NcryptAlgOperation) String() string {
output := ""
if *o&NcryptCipherOperation == NcryptCipherOperation {
output += "Cipher;"
}
if *o&NcryptHashOperation == NcryptHashOperation {
output += "Hash;"
}
if *o&NcryptAsymmetricEncryptionOperation == NcryptAsymmetricEncryptionOperation {
output += "AsymmetricEncryption;"
}
if *o&NcryptSecretAgreementOperation == NcryptSecretAgreementOperation {
output += "SecretAgreement;"
}
if *o&NcryptSignatureOperation == NcryptSignatureOperation {
output += "Signature;"
}
if *o&NcryptRngOperation == NcryptRngOperation {
output += "Rng;"
}
if *o&NcryptKeyDerivationOperation == NcryptKeyDerivationOperation {
output += "KeyDerivation;"
}
return output
}
type NcryptProperty string
const (
//
// Standard property names.
//
NcryptNameProperty NcryptProperty = "Name"
NcryptUniqueNameProperty NcryptProperty = "Unique Name"
NcryptAlgorithmProperty NcryptProperty = "Algorithm Name"
NcryptLengthProperty NcryptProperty = "Length"
NcryptLengthsProperty NcryptProperty = "Lengths"
NcryptBlockLengthProperty NcryptProperty = "Block Length"
NcryptPublicLengthProperty NcryptProperty = "PublicKeyLength"
NcryptSignatureLengthProperty NcryptProperty = "SignatureLength"