REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4177
Timestamp Countersignature Verification implementaion based on Mbedtls.
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Yi Li <yi1...@intel.com>
Signed-off-by: Wenxing Hou <wenxing....@intel.com>
---
.../Library/BaseCryptLibMbedTls/Pk/CryptTs.c | 381 ++++++++++++++++++
1 file changed, 381 insertions(+)
create mode 100644 CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptTs.c
diff --git a/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptTs.c
b/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptTs.c
new file mode 100644
index 0000000000..d3fa205f9c
--- /dev/null
+++ b/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptTs.c
@@ -0,0 +1,381 @@
+/** @file
+ RFC3161 Timestamp Countersignature Verification Wrapper Implementation which
does
+ not provide real capabilities.
+
+Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "InternalCryptLib.h"
+#include <mbedtls/asn1.h>
+
+//
+// OID ASN.1 Value for SPC_RFC3161_OBJID ("1.3.6.1.4.1.311.3.3.1")
+//
+GLOBAL_REMOVE_IF_UNREFERENCED const UINT8 mSpcRFC3161OidValue[] = {
+ 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0x37, 0x03, 0x03, 0x01
+};
+
+/**
+ Convert ASN.1 GeneralizedTime to EFI Time.
+
+ @param[in] Ptr Pointer to the ASN.1 GeneralizedTime to be
converted.
+ @param[out] EfiTime Return the corresponding EFI Time.
+
+ @retval TRUE The time conversion succeeds.
+ @retval FALSE Invalid parameters.
+
+**/
+STATIC
+BOOLEAN
+ConvertAsn1TimeToEfiTime (
+ IN UINT8 *Ptr,
+ OUT EFI_TIME *EfiTime
+ )
+{
+ CONST CHAR8 *Str;
+ UINTN Index;
+
+ if ((Ptr == NULL) || (EfiTime == NULL)) {
+ return FALSE;
+ }
+
+ Str = (CONST CHAR8 *)Ptr;
+ SetMem (EfiTime, sizeof (EFI_TIME), 0);
+
+ Index = 0;
+
+ /* four digit year */
+ EfiTime->Year = (Str[Index++] - '0') * 1000;
+ EfiTime->Year += (Str[Index++] - '0') * 100;
+ EfiTime->Year += (Str[Index++] - '0') * 10;
+ EfiTime->Year += (Str[Index++] - '0');
+ if ((EfiTime->Year < 1900) || (EfiTime->Year > 9999)) {
+ return FALSE;
+ }
+
+ EfiTime->Month = (Str[Index++] - '0') * 10;
+ EfiTime->Month += (Str[Index++] - '0');
+ if ((EfiTime->Month < 1) || (EfiTime->Month > 12)) {
+ return FALSE;
+ }
+
+ EfiTime->Day = (Str[Index++] - '0') * 10;
+ EfiTime->Day += (Str[Index++] - '0');
+ if ((EfiTime->Day < 1) || (EfiTime->Day > 31)) {
+ return FALSE;
+ }
+
+ EfiTime->Hour = (Str[Index++] - '0') * 10;
+ EfiTime->Hour += (Str[Index++] - '0');
+ if (EfiTime->Hour > 23) {
+ return FALSE;
+ }
+
+ EfiTime->Minute = (Str[Index++] - '0') * 10;
+ EfiTime->Minute += (Str[Index++] - '0');
+ if (EfiTime->Minute > 59) {
+ return FALSE;
+ }
+
+ EfiTime->Second = (Str[Index++] - '0') * 10;
+ EfiTime->Second += (Str[Index++] - '0');
+ if (EfiTime->Second > 59) {
+ return FALSE;
+ }
+
+ /* Note: we did not adjust the time based on time zone information */
+
+ return TRUE;
+}
+
+/**
+ Verifies the validity of a RFC3161 Timestamp CounterSignature embedded in
PE/COFF Authenticode
+ signature.
+
+ Return FALSE to indicate this interface is not supported.
+
+ @param[in] AuthData Pointer to the Authenticode Signature retrieved
from signed
+ PE/COFF image to be verified.
+ @param[in] DataSize Size of the Authenticode Signature in bytes.
+ @param[in] TsaCert Pointer to a trusted/root TSA certificate encoded
in DER, which
+ is used for TSA certificate chain verification.
+ @param[in] CertSize Size of the trusted certificate in bytes.
+ @param[out] SigningTime Return the time of timestamp generation time if the
timestamp
+ signature is valid.
+
+ @retval FALSE This interface is not supported.
+
+**/
+BOOLEAN
+EFIAPI
+ImageTimestampVerify (
+ IN CONST UINT8 *AuthData,
+ IN UINTN DataSize,
+ IN CONST UINT8 *TsaCert,
+ IN UINTN CertSize,
+ OUT EFI_TIME *SigningTime
+ )
+{
+ BOOLEAN Status;
+ UINT8 *Ptr;
+ UINT8 *End;
+ INT32 Len;
+ UINTN ObjLen;
+ UINT8 *TempPtr;
+
+ //
+ // Initializations
+ //
+ if (SigningTime != NULL) {
+ SetMem (SigningTime, sizeof (EFI_TIME), 0);
+ }
+
+ //
+ // Input Parameters Checking.
+ //
+ if ((AuthData == NULL) || (TsaCert == NULL)) {
+ return FALSE;
+ }
+
+ if ((DataSize > INT_MAX) || (CertSize > INT_MAX)) {
+ return FALSE;
+ }
+
+ Ptr = (UINT8 *)(UINTN)AuthData;
+ Len = (UINT32)DataSize;
+ End = Ptr + Len;
+
+ // ContentInfo
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ // ContentType
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_OID) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+ // content
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_CONTEXT_SPECIFIC) != 0) {
+ return FALSE;
+ }
+
+ End = Ptr + ObjLen;
+ // signedData
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ // version
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_INTEGER) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+ // digestAlgo
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SET) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // encapContentInfo
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // cert
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_CONTEXT_SPECIFIC) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ TempPtr = Ptr;
+ // OPTIONAL CRLs
+ if (mbedtls_asn1_get_tag (&TempPtr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_CONTEXT_SPECIFIC) == 0) {
+ Ptr = TempPtr + ObjLen;
+ }
+
+ // signerInfo
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SET) != 0) {
+ return FALSE;
+ }
+
+ // sub parse
+ // signerInfo
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ End = Ptr + ObjLen;
+
+ // version
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_INTEGER) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // sid
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // digestalgo
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // OPTIONAL AuthenticatedAttributes
+ TempPtr = Ptr;
+ if (mbedtls_asn1_get_tag (&TempPtr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_CONTEXT_SPECIFIC) == 0) {
+ Ptr = TempPtr + ObjLen;
+ }
+
+ // signaturealgo
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // signature
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_OCTET_STRING) !=
0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // OPTIONAL UnauthenticatedAttributes
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, 0xA1) != 0) {
+ return FALSE;
+ }
+
+ // Attribute
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ // type
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_OID) != 0) {
+ return FALSE;
+ }
+
+ if (CompareMem (Ptr, mSpcRFC3161OidValue, sizeof (mSpcRFC3161OidValue)) !=
0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // values
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SET) != 0) {
+ return FALSE;
+ }
+
+ // values
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ // signedData OID
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_OID) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // [0]
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_CONTEXT_SPECIFIC) != 0) {
+ return FALSE;
+ }
+
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ // integer
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_INTEGER) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+ // SET
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SET) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ // tST OID
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_OID) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_CONTEXT_SPECIFIC) != 0) {
+ return FALSE;
+ }
+
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_OCTET_STRING) !=
0) {
+ return FALSE;
+ }
+
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ // Integer
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_INTEGER) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+ // policy OID
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_OID) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+ // sequence
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+ // Integer
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_INTEGER) != 0) {
+ return FALSE;
+ }
+
+ Ptr += ObjLen;
+
+ // GeneralizedTime
+ if (mbedtls_asn1_get_tag (&Ptr, End, &ObjLen, MBEDTLS_ASN1_GENERALIZED_TIME)
!= 0) {
+ return FALSE;
+ }
+
+ //
+ // Retrieve the signing time from TS_TST_INFO structure.
+ //
+ if (SigningTime != NULL) {
+ SetMem (SigningTime, sizeof (EFI_TIME), 0);
+ Status = ConvertAsn1TimeToEfiTime (Ptr, SigningTime);
+ }
+
+ return Status;
+}
--
2.26.2.windows.1
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