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c1b76fb2d9
* signature: add comments to SignatureType enum entries about the exact signing algorithms and padding schemes used. * signature: rename signatureGetSigType() -> signatureGetTypeFromSignedBlob(). * signature: rename signatureIsValidSigType() -> signatureIsValidType(). * signature: rename signatureGetSigSize() -> signatureGetSigSizeByType(). * signature: rename signatureGetBlockSize() -> signatureGetBlockSizeByType(). * signature: rename signatureGetSig() -> signatureGetSigFromSignedBlob(). * signature: rename signatureGetPayload() -> signatureGetPayloadFromSignedBlob(). * signature: add signatureGetBlockSizeFromSignedBlob(). * cert: add more comments to the code. * cert: update code to match signature interface changes. * cert: add CERT_RSA_PUB_EXP_SIZE macro. * cert: change public_exponent field in CertPublicKeyBlockRsa* structs from u32 to u8 array. * cert: add size field to CertificateChain struct. * cert: rename certGetCommonBlock() -> certGetCommonBlockFromSignedCertBlob. * cert: rename certGetPublicKeySize() -> certGetPublicKeySizeByType(). * cert: rename certGetPublicKeyBlockSize() -> certGetPublicKeyBlockSizeByType(). * cert: rename certIsValidCertificate() -> certIsValidSignedCertBlob(). * cert: rename certGetSignedCertificateSize() -> certGetSignedCertBlobSize(). * cert: rename certGetSignedCertificateHashAreaSize() -> certGetSignedCertBlobHashAreaSize(). * cert: remove certGetPublicKey(), certGetPublicExponent() and certCalculateRawCertificateChainSize(). * cert: add certGetPublicKeyTypeFromCommonBlock(), certGetPublicKeyTypeFromSignedCertBlob(), certGetPublicKeySizeFromSignedCertBlob(), certGetPublicKeyBlockSizeFromSignedCertBlob(), certGetPublicKeyFromSignedCertBlob(), certGetPublicExponentFromSignedCertBlob(), certIsValidCertificate() (w/diff func sig), certGetCommonBlockFromCertificate(), certGetPublicKeyTypeFromCertificate(), certGetPublicKeySizeFromCertificate(), certGetPublicKeyBlockSizeFromCertificate(), certGetPublicKeyFromCertificate(), certGetPublicExponentFromCertificate() and certGetHashAreaSizeFromCertificate() functions. * cert: avoid byteswapping the public key type value in multiple places -- it is now only being done in certGetPublicKeyTypeFromCommonBlock(). * cert: call certFreeCertificateChain() in _certRetrieveCertificateChainBySignatureIssuer() before attempting to retrieve the certificate chain. * cert: other minor changes and corrections. * tik: update code to match signature interface changes. * tik: add missing comments to TikPropertyMask enum entries. * tik: add key_generation, enc_titlekey_str and dec_titlekey_str fields to Ticket struct. * tik: update tikRetrieveTicketByRightsId() to also take in a key_generation argument, instead of getting it from the rights ID (which could fail if it's using a key generation lower than HOS 3.0.1) or the key_generation field from the common ticket block (which could fail if the ticket has been tampered by certain tools). * tik: rename tikGetCommonBlock() -> tikGetCommonBlockFromSignedTicketBlob(). * tik: change function signature for tikGetTicketSectionRecordsBlockSize(). * tik: rename tikIsValidTicket() -> tikIsValidSignedTicketBlob(). * tik: rename tikGetSignedTicketSize() -> tikGetSignedTicketBlobSize(). * tik: rename tikGetSignedTicketHashAreaSize() -> tikGetSignedTicketBlobHashAreaSize(). * tik: rename tikGetEncryptedTitleKeyFromTicket() -> tikGetEncryptedTitleKey(). * tik: add tikIsValidTicket() (w/diff func sig), tikGetCommonBlockFromTicket(), tikGetHashAreaSizeFromTicket(), tikFixTamperedCommonTicket(), tikVerifyRsa2048Sha256Signature() and tikDecryptVolatileTicket() functions. Ticket signature verification is only carried out for common tickets in tikFixTamperedCommonTicket(). * tik: change argument order in tikGetTicketEntryOffsetFromTicketList() and tikRetrieveTicketEntryFromTicketBin(). * tik: add TIK_COMMON_CERT_NAME and TIK_DEV_CERT_ISSUER macros. * tik: use a scoped lock when calling tikRetrieveTicketFromEsSaveDataByRightsId(). * tik: simplify certificate chain retrieval steps in tikConvertPersonalizedTicketToCommonTicket() by always using the XS00000020 certificate. * tik: wipe license_type and property_mask fields in tikConvertPersonalizedTicketToCommonTicket(). * tik: other minor changes and corrections. Other changes include: * keys: fix key generation checks in keysGetNcaKeyAreaKeyEncryptionKey() and keysGetTicketCommonKey(). * rsa: move core logic from rsa2048VerifySha256BasedPssSignature() into a new function: rsa2048VerifySha256BasedSignature(). * rsa: add rsa2048VerifySha256BasedPkcs1v15Signature() function.
125 lines
4.7 KiB
C
125 lines
4.7 KiB
C
/*
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* signature.h
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*
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* Copyright (c) 2020-2023, DarkMatterCore <pabloacurielz@gmail.com>.
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*
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* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
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*
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* nxdumptool is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* nxdumptool is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifndef __SIGNATURE_H__
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#define __SIGNATURE_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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SignatureType_Rsa4096Sha1 = 0x10000, ///< RSA-4096 PKCS#1 v1.5 + SHA-1.
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SignatureType_Rsa2048Sha1 = 0x10001, ///< RSA-2048 PKCS#1 v1.5 + SHA-1.
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SignatureType_Ecc480Sha1 = 0x10002, ///< Unpadded ECDSA + SHA-1.
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SignatureType_Rsa4096Sha256 = 0x10003, ///< RSA-4096 PKCS#1 v1.5 + SHA-256.
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SignatureType_Rsa2048Sha256 = 0x10004, ///< RSA-2048 PKCS#1 v1.5 + SHA-256.
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SignatureType_Ecc480Sha256 = 0x10005, ///< Unpadded ECDSA + SHA-256.
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SignatureType_Hmac160Sha1 = 0x10006 ///< HMAC-SHA1-160.
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} SignatureType;
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typedef struct {
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u32 sig_type; ///< SignatureType_Rsa4096Sha1, SignatureType_Rsa4096Sha256.
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u8 signature[0x200];
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u8 padding[0x3C];
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} SignatureBlockRsa4096;
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NXDT_ASSERT(SignatureBlockRsa4096, 0x240);
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typedef struct {
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u32 sig_type; ///< SignatureType_Rsa2048Sha1, SignatureType_Rsa2048Sha256.
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u8 signature[0x100];
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u8 padding[0x3C];
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} SignatureBlockRsa2048;
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NXDT_ASSERT(SignatureBlockRsa2048, 0x140);
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typedef struct {
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u32 sig_type; ///< SignatureType_Ecc480Sha1, SignatureType_Ecc480Sha256.
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u8 signature[0x3C];
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u8 padding[0x40];
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} SignatureBlockEcc480;
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NXDT_ASSERT(SignatureBlockEcc480, 0x80);
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typedef struct {
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u32 sig_type; ///< SignatureType_Hmac160Sha1.
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u8 signature[0x14];
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u8 padding[0x28];
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} SignatureBlockHmac160;
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NXDT_ASSERT(SignatureBlockHmac160, 0x40);
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/// Helper inline functions.
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NX_INLINE bool signatureIsValidType(u32 type)
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{
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return (type == SignatureType_Rsa4096Sha1 || type == SignatureType_Rsa2048Sha1 || type == SignatureType_Ecc480Sha1 || \
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type == SignatureType_Rsa4096Sha256 || type == SignatureType_Rsa2048Sha256 || type == SignatureType_Ecc480Sha256 || \
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type == SignatureType_Hmac160Sha1);
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}
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NX_INLINE u64 signatureGetSigSizeByType(u32 type)
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{
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return (u64)((type == SignatureType_Rsa4096Sha1 || type == SignatureType_Rsa4096Sha256) ? MEMBER_SIZE(SignatureBlockRsa4096, signature) : \
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((type == SignatureType_Rsa2048Sha1 || type == SignatureType_Rsa2048Sha256) ? MEMBER_SIZE(SignatureBlockRsa2048, signature) : \
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((type == SignatureType_Ecc480Sha1 || type == SignatureType_Ecc480Sha256) ? MEMBER_SIZE(SignatureBlockEcc480, signature) : \
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(type == SignatureType_Hmac160Sha1 ? MEMBER_SIZE(SignatureBlockHmac160, signature) : 0))));
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}
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NX_INLINE u64 signatureGetBlockSizeByType(u32 type)
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{
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return (u64)((type == SignatureType_Rsa4096Sha1 || type == SignatureType_Rsa4096Sha256) ? sizeof(SignatureBlockRsa4096) : \
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((type == SignatureType_Rsa2048Sha1 || type == SignatureType_Rsa2048Sha256) ? sizeof(SignatureBlockRsa2048) : \
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((type == SignatureType_Ecc480Sha1 || type == SignatureType_Ecc480Sha256) ? sizeof(SignatureBlockEcc480) : \
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(type == SignatureType_Hmac160Sha1 ? sizeof(SignatureBlockHmac160) : 0))));
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}
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NX_INLINE u32 signatureGetTypeFromSignedBlob(void *buf, bool big_endian_sig_type)
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{
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if (!buf) return 0;
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return (big_endian_sig_type ? __builtin_bswap32(*((u32*)buf)) : *((u32*)buf));
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}
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NX_INLINE u8 *signatureGetSigFromSignedBlob(void *buf)
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{
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return (buf ? ((u8*)buf + 4) : NULL);
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}
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NX_INLINE u64 signatureGetBlockSizeFromSignedBlob(void *buf, bool big_endian_sig_type)
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{
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return signatureGetBlockSizeByType(signatureGetTypeFromSignedBlob(buf, big_endian_sig_type));
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}
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NX_INLINE void *signatureGetPayloadFromSignedBlob(void *buf, bool big_endian_sig_type)
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{
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if (!buf) return NULL;
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u32 sig_type = signatureGetTypeFromSignedBlob(buf, big_endian_sig_type);
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return (signatureIsValidType(sig_type) ? (void*)((u8*)buf + signatureGetBlockSizeByType(sig_type)) : NULL);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* __SIGNATURE_H__ */
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