diff options
Diffstat (limited to 'src/VBox/Runtime/common/crypto/x509-sanity.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/crypto/x509-sanity.cpp | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/crypto/x509-sanity.cpp b/src/VBox/Runtime/common/crypto/x509-sanity.cpp new file mode 100644 index 00000000..9df62d35 --- /dev/null +++ b/src/VBox/Runtime/common/crypto/x509-sanity.cpp @@ -0,0 +1,161 @@ +/* $Id: x509-sanity.cpp $ */ +/** @file + * IPRT - Crypto - X.509, Sanity Checkers. + */ + +/* + * Copyright (C) 2006-2019 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "internal/iprt.h" +#include <iprt/crypto/x509.h> + +#include <iprt/err.h> +#include <iprt/string.h> + +#include "x509-internal.h" + + + +static int rtCrX509Validity_CheckSanityExtra(PCRTCRX509VALIDITY pThis, uint32_t fFlags, PRTERRINFO pErrInfo, const char *pszErrorTag) +{ + RT_NOREF_PV(fFlags); + + if (RTAsn1Time_Compare(&pThis->NotBefore, &pThis->NotAfter) > 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_VALIDITY_SWAPPED, "%s: NotBefore is after NotAfter", pszErrorTag); + /** @todo check tag constraints? */ + return VINF_SUCCESS; +} + + +static int rtCrX509Name_CheckSanityExtra(PCRTCRX509NAME pThis, uint32_t fFlags, PRTERRINFO pErrInfo, const char *pszErrorTag) +{ + RT_NOREF_PV(fFlags); + + if (pThis->cItems == 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_NAME_EMPTY_SET, "%s: Has no components.", pszErrorTag); + + for (uint32_t i = 0; i < pThis->cItems; i++) + { + PCRTCRX509RELATIVEDISTINGUISHEDNAME const pRdn = pThis->papItems[i]; + if (pRdn->cItems == 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_NAME_EMPTY_SUB_SET, + "%s: Items[%u] has no sub components.", pszErrorTag, i); + + for (uint32_t j = 0; j < pRdn->cItems; j++) + { + PCRTCRX509ATTRIBUTETYPEANDVALUE const pAttr = pRdn->papItems[j]; + + if (pAttr->Value.enmType != RTASN1TYPE_STRING) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_NAME_NOT_STRING, + "%s: Items[%u].paItems[%u].enmType is %d instead of string (%d).", + pszErrorTag, i, j, pAttr->Value.enmType, RTASN1TYPE_STRING); + if (pAttr->Value.u.String.Asn1Core.cb == 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_NAME_EMPTY_STRING, + "%s: Items[%u].paItems[%u] is an empty string", pszErrorTag, i, j); + switch (pAttr->Value.u.String.Asn1Core.uTag) + { + case ASN1_TAG_PRINTABLE_STRING: + case ASN1_TAG_UTF8_STRING: + break; + case ASN1_TAG_T61_STRING: + case ASN1_TAG_UNIVERSAL_STRING: + case ASN1_TAG_BMP_STRING: + break; + case ASN1_TAG_IA5_STRING: /* Used by "Microsoft Root Certificate Authority" in the "com" part of the Issuer. */ + break; + default: + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_INVALID_NAME_STRING_TAG, + "%s: Items[%u].paItems[%u] invalid string type: %u", pszErrorTag, i, j, + pAttr->Value.u.String.Asn1Core.uTag); + } + } + } + + return VINF_SUCCESS; +} + + +static int rtCrX509SubjectPublicKeyInfo_CheckSanityExtra(PCRTCRX509SUBJECTPUBLICKEYINFO pThis, uint32_t fFlags, + PRTERRINFO pErrInfo, const char *pszErrorTag) +{ + RT_NOREF_PV(fFlags); + if (pThis->SubjectPublicKey.cBits <= 32) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_PUBLIC_KEY_TOO_SMALL, + "%s: SubjectPublicKey is too small, only %u bits", pszErrorTag, pThis->SubjectPublicKey.cBits); + return VINF_SUCCESS; +} + + +static int rtCrX509TbsCertificate_CheckSanityExtra(PCRTCRX509TBSCERTIFICATE pThis, uint32_t fFlags, + PRTERRINFO pErrInfo, const char *pszErrorTag) +{ + RT_NOREF_PV(fFlags); + + if ( RTAsn1Integer_IsPresent(&pThis->T0.Version) + && RTAsn1Integer_UnsignedCompareWithU32(&pThis->T0.Version, RTCRX509TBSCERTIFICATE_V1) != 0 + && RTAsn1Integer_UnsignedCompareWithU32(&pThis->T0.Version, RTCRX509TBSCERTIFICATE_V2) != 0 + && RTAsn1Integer_UnsignedCompareWithU32(&pThis->T0.Version, RTCRX509TBSCERTIFICATE_V3) != 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_TBSCERT_UNSUPPORTED_VERSION, + "%s: Unknown Version number: %llu", + pszErrorTag, pThis->T0.Version.uValue.u); + + if ( pThis->SerialNumber.Asn1Core.cb < 1 + || pThis->SerialNumber.Asn1Core.cb > 1024) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_TBSCERT_SERIAL_NUMBER_OUT_OF_BOUNDS, + "%s: Bad SerialNumber length: %u", pszErrorTag, pThis->SerialNumber.Asn1Core.cb); + + if ( ( RTAsn1BitString_IsPresent(&pThis->T1.IssuerUniqueId) + || RTAsn1BitString_IsPresent(&pThis->T2.SubjectUniqueId)) + && RTAsn1Integer_UnsignedCompareWithU32(&pThis->T0.Version, RTCRX509TBSCERTIFICATE_V2) < 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_TBSCERT_UNIQUE_IDS_REQ_V2, + "%s: IssuerUniqueId and SubjectUniqueId requires version 2", pszErrorTag); + + if ( RTCrX509Extensions_IsPresent(&pThis->T3.Extensions) + && RTAsn1Integer_UnsignedCompareWithU32(&pThis->T0.Version, RTCRX509TBSCERTIFICATE_V3) < 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_TBSCERT_EXTS_REQ_V3, "%s: Extensions requires version 3", pszErrorTag); + + return VINF_SUCCESS; +} + + +static int rtCrX509Certificate_CheckSanityExtra(PCRTCRX509CERTIFICATE pThis, uint32_t fFlags, + PRTERRINFO pErrInfo, const char *pszErrorTag) +{ + RT_NOREF_PV(fFlags); + + if (RTCrX509AlgorithmIdentifier_Compare(&pThis->SignatureAlgorithm, &pThis->TbsCertificate.Signature) != 0) + return RTErrInfoSetF(pErrInfo, VERR_CR_X509_CERT_TBS_SIGN_ALGO_MISMATCH, + "%s: SignatureAlgorithm (%s) does not match TbsCertificate.Signature (%s).", pszErrorTag, + pThis->SignatureAlgorithm.Algorithm.szObjId, + pThis->TbsCertificate.Signature.Algorithm.szObjId); + return VINF_SUCCESS; +} + + +/* + * Generate the code. + */ +#include <iprt/asn1-generator-sanity.h> + |