* 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.
* Implemented RSA-2048-PSS + SHA256 signature verification.
* Refactored RSA-2048-OAEP decryption steps to use mbedtls function calls.
* Implemented NCA header main signature verification.
* Replaced Björn Samuelsson's CRC32 algorithm with the hardware accelerated CRC32 checksum calculation from libnx (latest commit with support for calculation in blocks).
